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Motorola MTP700 Detailed Service Manual
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Motorola MTP700 Detailed Service Manual

380 - 430 mhz 806 - 870 mhz
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See also: Basic Service Manual
MTP700
Digital Portable Radio
380 - 430 MHz
806 - 870 MHz
Detailed Service Manual
Part Number: 6866534D39-E
@6866534D39@
November 2006

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Summary of Contents for Motorola MTP700

  • Page 1 MTP700 Digital Portable Radio 380 - 430 MHz 806 - 870 MHz Detailed Service Manual Part Number: 6866534D39-E @6866534D39@ November 2006...

  • Page 2: Computer Software Copyrights

    Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

  • Page 3: Document History

    DOCUMENT HISTORY MTP700 Portable Radio / Detailed Service Manual DOCUMENT HISTORY The following major changes have been implemented in this manual since the previous edition: Edition Description Date 6866534D39-O Initial edition Nov. 2001 6866534D39-A Updated Safety Information to latest version.
  • Page 4 MTP700 Portable Radio / Detailed Service Manual DOCUMENT HISTORY Edition Description Date 6866534D40-D Chapter 6: Maintenance Oct. 2003 Deleted front housing kit assembly and disassembly instructions. Changed exploded view diagram and mechanical parts list. 6866534D40-E Chapter 2 & Appendix A: Oct.

  • Page 5: Product Safety And Rf Exposure For Portable Two-Way Radios

    RF exposure and helpful instructions on how to control your RF exposure. Your Motorola two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy.
  • Page 6 MTP700 Portable Radio / Detailed Service Manual SAFETY Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines: • United States Federal Communications Commission, Code of Federal Regulations; 47 CFR part 2 sub-part J • American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers (IEEE) C95.
  • Page 7 SAFETY MTP700 Portable Radio / Detailed Service Manual Facilities To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy.

  • Page 8: Operational Warnings

    MTP700 Portable Radio / Detailed Service Manual SAFETY Operational Warnings For Vehicles With An Air Bag Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a portable radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of the vehicle.

  • Page 9: Repair Of Fmrc Approved Products

    • Do not disassemble an FMRC Approved Product in any way that exposes the internal circuits of the unit. Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and FM Approval labeling. Radios will not be “upgraded” to this capability and labeled in the field. A modification changes the unit’s hardware from its original design configuration.

  • Page 10: Do Not Substitute Options Or Accessories

    FMRC Approved model. Do Not Substitute Options or Accessories The Motorola communications equipment certified by Factory Mutual is tested as a system and consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or options, or both.

  • Page 11: Table Of Contents

    MODEL INFORMATION & ACCESSORIES ... .2-1 MTP700 Portable Radio Model Charts ......2-1 MTP700 Portable Radio Model Information .
  • Page 12 MTP700 Portable Radio / Detailed Service Manual Receiver Path, Detailed Circuit Description ....4.1-10 Transmitter Path, Detailed Circuit Description ....4.1-13 Frequency Generating Section, Detailed Circuit Description.
  • Page 13 MTP700 Portable Radio / Detailed Service Manual xiii CHAPTER 4.2 TRANSCEIVER 800 MHz ......4.2-1 General .
  • Page 14 MTP700 Portable Radio / Detailed Service Manual CHAPTER 5 PROGRAMMING THE RADIO ..... . 5-1 Before Using the Customer Programming Software (CPS) .
  • Page 15 MTP700 Portable Radio / Detailed Service Manual CHAPTER 8 FLEX LAYOUT, SCHEMATICS & PARTS LISTS..8-1 Interconnect Flex ......... 8-1 Schematic for Interconnect Flex .
  • Page 16 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 17: Scope & Warranty Information

    SCOPE & WARRANTY INFORMATION Scope Of This Manual This manual contains information necessary to identify and troubleshoot the MTP700 Dimetra Port- able Radio at the component level. It also contains information on radio assembling, disassembling, and maintenance. Depending on the radio application, these radios are designed to work with Motorola’s Dimetra system or other TETRA compliant systems.

  • Page 18: Related Publications

    MTP700 Portable Radio / Detailed Service Manual SCOPE & WARRANTY INFORMATION Related Publications 6866534D27 MTP700 User’s Guide incl. Quick Reference Card (English) 6866534D28 MTP700 User’s Guide incl. Quick Reference Card (German) 6866534D29 MTP700 User’s Guide incl. Quick Reference Card (French) 6866534D30 MTP700 User’s Guide incl.

  • Page 19: Warranty And Service Support

    In instances where the product is covered under a "return for replacement" or "return for repair" war- ranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.

  • Page 20: European Radio Support Centers (Ersc)

    Accessory Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If a parts list is not included, this generally means that no user-serviceable parts are avail- able for that kit or assembly.

  • Page 21: Asia Pacific Radio Support Centers

    Aftermarket and Accessory Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.

  • Page 22: Latin America Radio Support Centers

    Aftermarket and Accessory Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.

  • Page 23: Model Information & Accessories

    ***MTP700 Super Tanapa 380-430 MHz 1W 25K CR x **PMUE1826_ ***MTP700 Super Tanapa 380-430 MHz 1W 25K ES **PMUE2052_ MTP700 Super Tanapa 380-430 MHz 1W 25K CR (Chinese) **PMUE2053_ MTP700 Super Tanapa 380-430 MHz 1W 25K ES (Chinese) **PMUE2054_ MTP700 Super Tanapa 380-430 MHz 1W 25K CR (Korean)

  • Page 24: Appendix A Replacement Parts And Kits

    MTP700 Portable Radio / Detailed Service Manual MODEL INFORMATION & ACCESSORIES MTP700, 380-430 MHz (Continued) Model Description H47QCM6TZ6AN MTP700 380-430 MHz 1W 25K CR PT911E *H47QCM6TZ6AB MTP700 380-430 MHz 1W 25K CR PT911E H47QCM6TZ5AN MTP700 380-430 MHz 1W 25K ES PT911E...
  • Page 25 ***MTP700 Super Tanapa 806-870 MHz 1W 25K ES **PMUF1115_ MTP700 Super Tanapa 806-870 MHz 1W 25K ES **PMUF1157_ MTP700 Super Tanapa 806-870 MHz 1W 25K CR (Chinese) **PMUF1158_ MTP700 Super Tanapa 806-870 MHz 1W 25K ES (Chinese) **PMUF1159_ MTP700 Super Tanapa 806-870 MHz 1W 25K CR (Korean)
  • Page 26 MODEL INFORMATION & ACCESSORIES MTP700, 806-870 MHz (Continued) Model Description H47XCM6TZ5AK MTP700 806-870 MHz 1W 25K ES PT711E (Korea) H47XCM6TZ6AN MTP700 806-870 MHz 1W 25K CR PT711E *H47XCM6TZ6AB MTP700 806-870 MHz 1W 25K CR PT711E H47XCM6TZ5AN MTP700 806-870 MHz 1W 25K ES PT711E...

  • Page 27: Mtp700 Portable Radio Model Information

    MTP700, 806-870 MHz, 1 W, 25 kHz, with Continuous Rotary knob for group selection (CR) MTP700, 806-870 MHz, 1 W, 25 kHz, with End Stop knob for group selection (ES) MTP700, 806-870 MHz, 1 W, 25 kHz, with End Stop knob for group selection (ES), Korean model Sales Model Nomenclature...

  • Page 28: Mtp700 Portable Radio Model Specification

    MTP700 Portable Radio / Detailed Service Manual MODEL INFORMATION & ACCESSORIES MTP700 Portable Radio Model Specification GENERAL RECEIVER TRANSMITTER π /4 DQPSK ETSI: ETS 300 394-1 Receiver Type: Class B Modulation Type: Type Number Frequency Range: Nomin. Output Power: - 380-430 MHz:...

  • Page 29: Mtp700 Accessories-To-Model Chart

    MODEL INFORMATION & ACCESSORIES MTP700 Portable Radio / Detailed Service Manual MTP700 Accessories-To-Model Chart 380-430 MTP700 PORTABLE RADIO ACCESSORIES 806-870 MHz Batteries - Smart Kit Number Battery, LiIon, Std, 1200 mAh PMNN4047_ Battery, NiMH, 1200 mAh PMNN4048_ Battery, NiMh, FM, 1150 mAh...
  • Page 30 MTP700 Portable Radio / Detailed Service Manual MODEL INFORMATION & ACCESSORIES 380-430 MTP700 PORTABLE RADIO ACCESSORIES 806-870 MHz Carrying Case Accessories Kit Number Hard leather case with Swivel PMLN4474_ Carrying strap for above NTN5243_ 2.5 inch belt clip HLN9714_ Light leather case ("GSM" style)

  • Page 31: Overview

    This process is called digital modulation. Digital Modulation Technology The MTP700 are 380-430 MHz or 806-870 MHz portable radios that can operate in dis- patch mode. They use two digital technologies: Π/4 DQPSK and Time Division Multiple Access (TDMA).
  • Page 32 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 33: Radio Information

    RADIO INFORMATION MTP700 Portable Radio / Detailed Service Manual 4 - 1 CHAPTER 4 RADIO INFORMATION Section Introduction This section provides a block diagram overview of the main Digital/RF Board supplemented by the detailed block diagram and detailed circuit description followed by board and schematic diagrams and parts lists and troubleshooting charts.
  • Page 34 4 - 2 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 35: Transceiver 400 Mhz

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 1 CHAPTER 4.1 TRANSCEIVER 400 MHz General This section provides a block diagram overview of the main Digital/RF Board. This is sup- plemented by the detailed block diagram and detailed circuit description.
  • Page 36 4.1 - 2 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Antenna Battery Block Antenna Switch Main Board Transmitter Digital Block Synthesizer Receiver Audio KeyPad Figure 4.1-1 General Block Diagram...

  • Page 37: Receiver Section

    Transmitter Section The transmitter circuitry includes a linear class AB Power Amplifier (PA) for the linear modulation of the MTP700. Also included is a cartesian feedback loop to enhance the transmitter linearity and hence reducing splattering in the adjacent channels.

  • Page 38: Frequency Generating Section (Synthesizer)

    4.1 - 4 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Frequency Generating Section (Synthesizer) The frequency generating section contains the following components: • TCXO Reference Oscillator. • Main Synthesizer - consists of the WPIC's PLL and the Main Voltage Controlled Oscillator (VCO).

  • Page 39: Block Diagrams Descriptions

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 5 Block Diagrams Descriptions The block diagrams descriptions cover Receiver Path, Transmitter Path, Frequency Gen- eration Section and Digital Section. Receiver Path The received signal (see Figure 4.1-2 ) from the antenna is directed by the Antenna Switch to the Pre-selection Filter.

  • Page 40: Transmitter Path

    4.1 - 6 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Transmitter Path When the radio is transmitting (see Figure 4.1-3), the microphone audio is sent to the GCAP3 (CODEC). The CODEC performs 13-bit analog-to-digital conversion and the dig- ital signal is routed to the DSP (part of RedCap2).

  • Page 41: Frequency Generating Section

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 7 Frequency Generating Section The frequency generating section contains the following components (see Figure 4.1-4): • TCXO Reference Oscillator. • Main Synthesizer - consists of the WPIC’s PLL and the Main Voltage Controlled Oscillator (VCO).
  • Page 42 4.1 - 8 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz RX Second Local Oscillator (LO) The second LO synthesizer supplies the second IF local oscillator signal to the receiver. The signal of the frequency of 219.3 MHz will be used in the WPIC to generate the quad- rature signals for downconverting the received IF signal to the baseband (zero IF).

  • Page 43: Digital & Audio Section

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 9 Digital & Audio Section The digital section (see Figure 4.1-5) contains the radio's RedCap2 RISC processor, DSP (embedded within), external memories and GCAP3. The DSP has its own processing memory.

  • Page 44: Receiver Path, Detailed Circuit Description

    4.1 - 10 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Detailed Circuit Description Receiver Path, Detailed Circuit Description See Figure 4.1-6. From Main Synthesizer LO level = 0 dBm 489.65 – 539.65 MHz Integrated Mixer Gain= -6dB...
  • Page 45 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 11 Pre-selector The signal arriving at the receiver input is routed through the integrated, tuneable Pre- selector Filter FL2100 into the Low Noise Amplifier (LNA) U2200 via a matching network C2200, L2200, R2200 and C2201.
  • Page 46 4.1 - 12 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz IF Filter The IF signal is routed via the IF filter (FL2500), which has an insertion loss of 2 dB and attenuates unwanted mixing products of the mixer. It is connected via a matching net- work, consisting of C2502, L2501 and C2503, to the balun network.

  • Page 47: Transmitter Path, Detailed Circuit Description

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 13 Transmitter Path, Detailed Circuit Description See Figure 4.1-7. 2.775V fr om TX synt hesizer TX LO dr iver ANT_EN (from RedCap2) 6db power Pha se VCNTO (from WPIC)
  • Page 48 4.1 - 14 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz The output signals are routed to the LNODCT IC. The WPIC sends a 2.4MHz low-level differential reference clock signal (pins B11, TCLK; C10, TCLKB) to the LNODCT. It also sends a differential signal (pins A11, TSLOT;...
  • Page 49 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 15 Wideband RF stability of the PA is optimised by insertion of RF losses (R4008, R4006, R4004) in the gate circuit of Q4001. The U4001 amplifier gain is set in the factory using the VBLIN signal (from WPIC). VBLIN is amplified by DC amplifier U4002.

  • Page 50: Frequency Generating Section, Detailed Circuit Description

    4.1 - 16 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Frequency Generating Section, Detailed Circuit Description See Figure 4.1-8 This section describes the circuits that generate all the required frequencies for the required transmitter and receiver functions. These circuits are described as follows: •...
  • Page 51 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 17 Main VCO and Main Synthesizer The main synthesizer components are WPIC, Loop Filter, VCO and buffer. It produces the LO signal. The synthesizer functions are as follows: •...

  • Page 52: Digital & Audio Section, Detailed Circuit Description

    4.1 - 18 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Transmit PLL The TX VCO is a discrete VCO that is controlled by the ESCORT IC U7001. The VCO produces the TX frequency signals in the frequency band 380-430MHz. A discrete coil L7501 is used in the tank circuit of the VCO.
  • Page 53 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 19 RedCap2 (Microprocessor & DSP) Encryption PROM 2Kx24 DSP Peripheral Accelerator PRAM 40Kx24 DSP_IRQ STDB Baseband CODEC YROM 0Kx16 SRDB Serial Port XYA(16) SFSB(2) YRAM 15Kx16 XYRW,XYSEL,XYSTB Counter...
  • Page 54 4.1 - 20 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz External Host Memories The RedCap2 Address bus is a 22-bit wide (0:21) and RedCap2 Data Bus is a 16-bit wide (0:15). RedCap2 uses two types of memories: Flash Memory The Flash memory is dedicated to the application software.
  • Page 55 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 21 GCAP3 The Global Control Audio Power (GCAP3) IC handles DC power distribution and audio processing (ie audio amplification and analog-to-digital/digital-to-analog conversions). It contains switching and linear regulators, audio preamplifiers, 13-bit CODEC, 14-channel 10-bit A/D Converter, 8-bit D/A Converter and interfaces with an external Audio Amplifier for receive audio.
  • Page 56 4.1 - 22 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz 3.3V Switching Regulator An external 3.3V switching regulator is used to convert the battery voltage (7.2V) down to 3.3V to be used by GCAP3. This regulator can be set to fixed frequency 600KHz (during Tx &...
  • Page 57 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 23 VREF2 Linear Regulator VREF2 is a programmable linear regulator. It is programmed using RedCap2 SPIB bus from 0.95V to 2.775V. For this radio, it is programmed to 2.775V which supplies directly (VREF2_2.775_DIG) the backlights and filtered (VREF2_2.775V) the SSC section...
  • Page 58 4.1 - 24 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Radio Audio System See Figure 4.1-12 The audio system consists of the GCAP3 IC (U200) and the DSP (U301), both are located on the main board. The GCAP3 performs the analog task and part of the digital task of the audio system.
  • Page 59 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 25 RS232, SB9600, JTAG The RedCap2 processor (RCE) uses the three serial protocols: RS232/UART, SB9600, and JTAG to communicate with external devices via the bottom connector of the unit.

  • Page 60: Display And Keypad, Detailed Description

    4.1 - 26 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Display and Keypad, Detailed Description Display The LCD (Liquid Crystal Display) Module is a Graphic Display based upon the KS0741TB-01 display driver. It consist of LCD Holographic Glass, LED backlight and a 22 pin flex cable connected to the Keypad board.
  • Page 61 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 27 Backlight and LEDs Backlight The keypad backlight consists of 8 green LEDs. There are 2 more LEDs in the LCD mod- ule that are connected in parallel to the keypad LEDs.
  • Page 62 4.1 - 28 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Table 4.1-1 Bottom Connector Mode Table MODE ON_OFF/ BOTTOM BOTTOM JTAG/ FLASH OPTION1 OPTION2 Standard Normal (No Accessory) Modes USB Accessory / Computer >4.0V Emergency RS-232 (4 wire) / SSI...
  • Page 63 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 29 Side Connector The side connector is intended to support connection to accessories such as PSM, RSM, Headset, 2 or 4-wire data terminals and SB9600 based devices. The side connector has 16 modes of operation as shown in Table 4.1-3.
  • Page 64 4.1 - 30 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Signal Name Ext_Speaker+ Ext_Speaker- OPT B+ Ext_Mic SIDE_OPT2 SIDE_OPT1 Rx_Data Tx_Data CTS / BUSY_OUT RTS / BUSY_IN SIDE_OPT3 VIBRATOR Table 4.1-5 Side Connector Pin Out Table...

  • Page 65: 380-430 Mhz Board Layout, Schematics & Parts Lists

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 31 380-430 MHz Board Layout, Schematics & Parts Lists SH300 C006 R122 S100 S004 S002 S003 C002 E105 C001 C003 C121 SH1000 SH2001 C2306 E209 C2001 R2400 C2304...

  • Page 66: 380-430 Mhz Main Board Bottom Side Pcb No. 8466547A08

    4.1 - 32 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz TP302 TP301 SH3001 TP312 TP316 SH1500 SH201 TP304 TP306 SH7000 SH301 R118 R3004 C3013 R3002 R117 Q102 R3006 R3005 R116 R3013 E3001 L7503 U1501 R3017 Q7022 L201...

  • Page 67: Digital And Rf Block Diagram

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 33 DIGITAL RAW_B+ RAW_B+ BAT_DATA BAT_DATA EMERGENCY EMERGENCY KP_COL1 KP_COL1 KP_COL2 KP_COL2 VREF2_2.775V VREF2_2.775V RED_LED RED_LED GRN_LED GRN_LED SW_1 SW_1 SW_2 SW_2 SW_4 SW_4 SW_8 SW_8 INT_EAR- INT_EAR-...

  • Page 68: Dsp, Controller & Memory Schematic Diagram (Redcap2)

    4.1 - 34 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz R115 C330 C331 R324 33pF 33pF R313 R001 R002 GCAP3_RX STDA STDB WPIC_STD GCAP3_TX SRDA SRDB WPIC_SRD GCAP3_DCLK SCKA SCKB WPIC_TXCLK SC0A SC0B GCAP3 SC1A SC1B GCAP3_FSYNC...

  • Page 69: Dsp, Controller & Memory Schematic Diagram (Memory)

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 35 VREF1_2.775V MUX_CTRL=0 MUX_CTRL=1 Gen Port Ctrl Reg (GPCR) Gen Port Ctrl Reg (GPCR) GPCR = xxxxxxxx x00xxx00 GPCR = xxxxxxxx x11xxx11 C328 0.1uF GPCR (Bit7)=0 GPCR (Bit7)=1...

  • Page 70: Gcap (Audio & Dc) Schematic Diagram - Gcap3

    4.1 - 36 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz TP201 R284 C298 C285 8200pF 1.0uF SIDE_OPT_SEL3 R296 USB_PWR_RTS_RESETIN C249 4.7uF TxD_USB+ C252 C227 MUX_CTRL 4.7uF 10uF R235 TX PEAK R221 R285 SLUMP DETECTOR USBNEG RxD_USB- PGM0 = 1...

  • Page 71: Gcap (Audio & Dc) Schematic Diagram - Periphery

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 37 Q201 SWB+ U201 SWB+_dig MAX1685 SOFT_TURN_OFF SWB+ R229 C402 PWM1_1.8V EN_STBY 0.1uF EN_SHDN C234 PWM Filter L202 ILIM_SS 0.1uF L201 47uH 15uH E200 L200 4.7uH 48nH C228...

  • Page 72: Io Interface & Connectors Schematic Diagram - 40 Pin Connector

    4.1 - 38 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz 40-PIN CONNECTOR V3_2.775V_DIG U106 TC7S08FU R107 CLOCK J100-39 OUTY SPIB_CLK R121 J100-33 CHIP_SEL R106 DATA J100-38 U107-1 TC7WU04F C113 C112 C130 SIDE_SWB+_EN 33pF 33pF 33pF Q100 U107-2...

  • Page 73: Schematic Diagram - 16 Pin Connector

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 39 16-PIN CONNECTOR E102 VGND J110-3 48nH INT_MIC+ J110-1 INT_MIC- J110-2 E101 C100 C101 C125 C126 IO_1 150pF 150pF 0.1uF 0.1uF 48nH V3_2.775V_DIG TP100 TP101 TP102 TP103 VR100 C102 0.1uF...

  • Page 74: Switches & Associated Components Schematic Diagram - Switch

    4.1 - 40 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz S003 SWITCH VREF2_2.775V_KN_IN KP_COL1_KN_IN 1 A1 VREF2_2.775V KP_COL1 3 A2 C016 C001 D001 150pF 150pF SIDE BUTTON 1 LNJ123W8P0MT KP_ROW4_UNFLTR_KN_IN KP_ROW4 C002 150pF GRN_LED_KN_IN S004 SWITCH GRN_LED...

  • Page 75: Switches & Associated Components Schematic Diagram - 24 Pin Connector

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 41 SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP E020 E028 E036 E044 E052 E001 BK20104M601 POS4 NEG4 VIBRATOR POS3 NEG3 SIDE_OPT_SEL3 VR001 POS2 NEG2 SIDE_OPT_SEL1 5.6V POS1 NEG1 SIDE_OPT_SEL2 SPARK_GAP...

  • Page 76: Rf Section Block Diagram

    4.1 - 42 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz MOTOROLA CONFIDENTIAL PROPRIETARY SWB+ SWB+ PA_TEMP_RETURN PA_TEMP_RETURN GROUND_DIG PA_TEMP GROUND PA_TEMP PA_BIAS PA_BIAS switches & supporting components LO_DRIVER_EN LO_DRIVER_EN ESC_VCO_BUF_EN INT_SPKR- ESC_VCO_BUF_EN INT_SPKR- ANT_EN INT_SPKR+ ANT_EN INT_SPKR+...

  • Page 77: Rxu Schematic Diagram

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 43 E2100 FE_CNTL BK1005HM471 FE_CNTL_RXU RX_2.775V R2407 R2408 C2100 C2101 1.8K 3.3K 150pF 150pF C2407 1000pF TETRA_RX_LO C2400 R2401 L2400 82pF TETRA_RX_LO_RXU 47nH R2400 R2402 R2403 E2400 BK1005HM471...

  • Page 78: Rf Core Unit Schematic Diagram - Wpic

    4.1 - 44 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz SH1000 SHIELD TETRA_2nd_LO_EN GP06_DCLICIN RX_2nd_LO RX_2ND_LO VCTRL_RFCU VCTRL WPIC1(1:8) TCLK_RFCU TCLK TCLKB_RFCU 2.775V_WPIC TCLKB C1809 C1810 R1002 C1801 TSLOT_RFCU 3300pF .022uF VCOCT2 V3_2.775V_RFCU TSLOT 5V_RF 0.1uF TSLOTB_RFCU...

  • Page 79: Rf Core Unit Schematic Diagram - 2Nd

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 45 SF_OUT RX_2nd_LO GP06_DCLICIN L1522 BLM11B601S C1527 Q1531 0.1uF UMD3N R1524 C1526 47nH 0.1uF L1541 R1523 2.775V_WPIC 5V_RF 4.7K C1543 12pF C1502 15pF C1542 2.2K 1000pF C1523 C1521...

  • Page 80: Main Vco Schematic Diagram

    4.1 - 46 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz SF_OUT SF_OUT_MAIN_VCO R3005 R3004 2.2K Q3001 TETRA_MAIN_VCO_ON R3002 100K E3001 TETRA_MAIN_VCO_ON_MAIN_VCO BLM11B601S C3029 .022uF R3015 VCOCT1 R3001 VCOCT1_MAIN_VCO C3021 L3006 C3023 C3024 R3006 C3013 R3013 R3016 130pF 8.2nH...

  • Page 81: Txu Block Diagram

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 47 V4_2.775V SWB+ RAW_B+ 5V_RF V1_3V V4_LNODCT PA_BIAS GROUND GROUND PA_BIAS SPIA_CS_PA_BIAS GROUND_DIG SPIA_CS_PA_BIAS SPIA_CLK RX_TETRA RX_TETRA SPIA_MOSI PA_OUT PA_OUT FEEDBACK PA_TEMP_RETURN PA_TEMP_RETURN PA_TEMP PA_TEMP TXPA TXFE VBLIN...

  • Page 82: Txu-Lnodct Schematic Diagram

    4.1 - 48 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz C6002 C6003 R6004 C6004 150pF 0.1uF U6001 0.1uF SLC-045P C6001 C6005 C6007 C6008 C6010 C6011 C6016 R6001 R6008 R6010 TX_SOURCE_LNODCT TX_SOURCE INPUT OUTPUT1 150pF IPORT OUTPUT2 150pF 15pF 5.6pF...

  • Page 83: Txu-Tx Power Amplifier Schematic Diagram

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 49 RAW_B+_TXPA RAW_B+ R4009 L4011 C4050 L4006 C4035 C4036 C4037 C4013 100nH 180pF 68nH 330pF 100uF 100uF 100uF E4002 FBMH3216HM C4022 L4009 C4026 C4030 18nH 180pF 180pF C4006...

  • Page 84: Txu-Tx Front End Schematic Diagram

    4.1 - 50 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz L5010 V4_2.775V V4_2.775V_TXFE 220nH R5010 3.3K R5011 1.8K C5003 0.1uF Q5001 VCNTO VCNTO_TXFE R5012 L5005 R5013 ANT_EN_TXFE ANT_EN R5005 R5006 1MEG C5007 R5007 180pF 100K C5012 180pF...

  • Page 85: Txu-Escort/Tx Vco Schematic Diagram

    TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 51 R7511 V1_3V C7513 .047uF C7511 R7518 150pF SH7000 SHIELD R7517 2.2K Q7504 TX_SOURCE R7516 ESC_VCO_BUF_EN_ESCORT 100K 680nH ESC_VCO_BUF_EN L7508 R7514 L7507 39nH 5V_RF_ESCORT C7510 R7513 5V_RF 5.6pF...

  • Page 86: 380-430 Mhz Radio Parts List

    4.1 - 52 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz 380-430 MHz Radio Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C1502 2113743L17 Cap Cer Chip 1000pF 10% 16V...
  • Page 87 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 53 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C2407 2113743L17 Cap Cer Chip 1000pF 10% 16V R2405 0662057U31 Res Chip 15 1% 0.063W 0402...
  • Page 88 4.1 - 54 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. E4002 7608671Y02 Ferrite Bead 500 OHM SMD Pkg...
  • Page 89 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 55 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C6049 2113741F41 Cap Cer Chip 4700pF 5% 50V R6026 0662057M74 Res Chip 1000 5% 0.063W 0402...
  • Page 90 4.1 - 56 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C035 2113743N54 Cap Cer Chip 150pF 5% 16V C105 2113928N01 Cap Cer Chip 0.1uF 10% 6.3V...
  • Page 91 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 57 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C214 2113928C04 Cap Cer Chip 4.7uF 10% 6.3V C240 2113928N01 Cap Cer Chip 0.1uF 10% 6.3V...
  • Page 92 4.1 - 58 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. R207 0662057M96 Res Chip 8200 5% 0.063W 0402 VR201 4813830C26 Diode 13V ‘H3’ MMSZ5243BT1 C324 2113928N01 Cap Cer Chip 0.1uF 10% 6.3V...

  • Page 93: Troubleshooting (400 Mhz)

    “codeplug”. A radio codeplug can be read using the CPS programme. Test Procedures This section explains the procedures required to troubleshoot a MTP700 radio. The digital tests should be performed using the GoNoGo PATS test and TETRACom SW. To use the TETRACom you must go to test mode by using the command <Test Enter>.
  • Page 94 4.1 - 60 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Digital Analysis Test Use this test for troubleshooting the main board After completing the setup procedure, power on the unit. Does the power supply show current Replace the Main Board.
  • Page 95 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 61 Initialize the DSP. Use the Digital Diagnostic SW. Did the unit pass the Check for defective initialize DSP test? REDCAP2 (U301). Load Setfiles to configure the chip selects.
  • Page 96 4.1 - 62 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Digital Analysis Test (Cont.) Test the DSP memory. Did the unit pass The DSP inside the REDCAP2 the DSP memory (U301) is defective. test? Note: This test will performed Test the backlight by TetraCom SW application.
  • Page 97 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 63 DC Distribution (V3_2.775V) Test Use this test on a unit with the following symptoms: no power, no V3_2.775V, V1_3V, V2_2.775V, VREF1_2.775V, VREF2_2.775V. Note: The following are the DC power distribution voltages with their correct values and appropriate location to check the voltages: •...
  • Page 98 4.1 - 64 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (V3_2.775V) Test Use this test on a unit with the following symptoms: no V3_2.775V. Check battery contact J001 pin3 for 7.2Vdc. Is the voltage OK? Check the bench Power Supply.
  • Page 99 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 65 DC Distribution (V3_2.775V) Test (Cont.) Check C209, C258, C259 for 2.775Vdc (V3_2.775V_DIG). Is the voltage OK? Replace GCAP3(U200). Check C294, C295 for 2.775Vdc (V3_2.775V). Is the voltage OK? Check E207 for opens.
  • Page 100 4.1 - 66 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (V3_2.775V) Test (Cont.) Check SPI lines Clock and Data. Are SPI lines Clock See Digital Analysis tests. and Data correct? Check C210 for 2.775V (V2_2.775V).
  • Page 101 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 67 DC Distribution (V3_2.775V/PWM1_1.8V) Test Use this test on a unit with the following symptoms: no V3_2.775V, no PWM1_1.8V. Check C209, C258, C259 for 2.775Vdc (V3_2.775V_DIG). Refer to the DC Distribution Is the voltage OK? (V3_2.775V) Test flowchart.
  • Page 102 4.1 - 68 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (BOT_SWB+) Test Use this test on a unit with the following symptoms: no BOT_SWB+ . Check R109 for 7.2Vdc Is the voltage OK? Go to V3_2.775V test.
  • Page 103 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 69 DC Distribution (SWB+ 7.2V) Test Use this test on a unit with the following symptoms: no 7.2Vdc SWB+. Check Q201 pin2 or pin3 for 7.2Vdc. Check traces to U205, R215, Is the voltage OK? R256.
  • Page 104 4.1 - 70 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (5.5V_RF) Test Use this test on a unit with the following symptoms: no 5.5V_RF. Check 5.5V_RF on C299 for 5.5Vdc. Check traces to GCAP3 and Is the voltage OK? Battery Interface Circuitry.
  • Page 105 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 71 DC Distribution (5V_RF) Test Use this test on a unit with the following symptoms: no 5V_RF. Check 5V_RF on C292, C293 for 5Vdc. Check traces to the RF sections:...
  • Page 106 4.1 - 72 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (V1_3V) Test Use this test on a unit with the following symptoms: no V1_3V. Check C264, C266 for 3Vdc. Check traces to Is the voltage OK? ESCORT/TXVCO section.
  • Page 107 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 73 DC Distribution (V4_2.775V) Test Use this test on a unit with the following symptoms: no V4_2.775V. Check for 2.775Vdc on C291 (V4_2.775V) and on C340 (V4_LNODCT). Check traces to RFCU, RXU, Are both voltages OK? TXPA;...
  • Page 108 4.1 - 74 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz DC Distribution (VREF1_2.775V) Test Use this test on a unit with the following symptoms: no VREF1_2.775V. Check C285 for 2.775Vdc. Is the voltage OK? Check traces to U307.
  • Page 109 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 75 DC Distribution (VREF2_2.775V) Test Use this test on a unit with the following symptoms: no VREF2_2.775V Check C120 for 2.775Vdc (Backlight+). Check C263 for 2.775Vdc Is the voltage OK? (VREF2_2.775V).
  • Page 110 4.1 - 76 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Standby Current Troubleshooting This test should be carried out only after the successful completion of the previous tests. Measure the radio standby current by using PATS station Check if there are shorts on the board: -check if RF PA Q4001 is shorted to the ground.
  • Page 111 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 77 Receiver Troubleshooting Check Front Gain using a RF probe on C2503, frequency 109.65MHz. Check with all power Check second LO. Inputs/Outputs of Ant. SW., Is the -16dBm<Power<-10dBm...
  • Page 112 4.1 - 78 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Escort Troubleshooting TetraCom Commands (RFTONE mode) >test_Enter Perform the following: >11 timer on 1. Remove the Escort shield. >freq tx 405 2. Visually check all components and >main_vco on...
  • Page 113 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 79 Escort Troubleshooting (Cont.) Perform Supply problem? Controller Test Check for shorting ESC_VCO_BUF_EN on ESC_VCO_BUF on (2.775V)? line and perform Controller Test Perform VCO Test 1. Probe at R7514 using spectrum 2.
  • Page 114 4.1 - 80 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Closed Loop Power Test This test should be carried out only after the successful completion of the previous tests. Tune the radio on PATS. Is the radio close loop output power <28dBm or 31dBm?
  • Page 115 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 81 Open Loop Power Test This test should be carried out only after the successful completion of the previous tests. Measure the Open Loop Power by using PATS.
  • Page 116 4.1 - 82 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Open Loop Power Test (Cont.) Check Tx line up from LNODCT U6002 output till RF Is power <-4dBm? ldmos driver Q4001 input, replace damaged parts. Perform the Open Looop Power test again.
  • Page 117 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 83 Open Loop Power Test (Cont.) Measure the RF power at pin 24 of LNODCT (U6002) and input of I/Q splitter U6001. Perform Escort Is the level >0dBm? section tests.
  • Page 118 4.1 - 84 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Transmitter Current Consumption Test This test should be carried out only after the successful completion of the previous tests. Start TX current test. Is TX current >1.8A? (average TX current?) 1.
  • Page 119 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 85 2nd LO Troubleshooting Check DC supply for the Perform the following: Check for feedback problem. VCO: 1. Remove the 2nd_LO shield. 1. Check soldering of C1544, 1. Check for 2.45V on 2.
  • Page 120 4.1 - 86 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 400 MHz Synthesizer & VCO Troubleshooting Use this test on a unit with the following symptom: no Tx or Rx. TetraCom Commands Using a 50-ohm probe on the > 11 timer on spectrum analyzer, check the >...
  • Page 121 TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 87 Synthesizer & VCO Troubleshooting (Cont.) Check for the following: 2.45Vdc on R3006. Possible VCO problem. Confirm that the resonator tab is Check for opens or shorts properly soldered.
  • Page 122 4.1 - 88 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 123: Transceiver 800 Mhz

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 1 CHAPTER 4.2 TRANSCEIVER 800 MHz General This section provides a block diagram overview of the main Digital/RF Board. This is sup- plemented by the detailed block diagram and detailed circuit description.
  • Page 124 4.2 - 2 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Antenna Battery Block Antenna Switch Main Board Transmitter Digital Block Synthesizer Receiver Audio KeyPad Figure 4.2-1 General Block Diagram...

  • Page 125: Receiver Section

    Transmitter Section The transmitter circuitry includes a linear class AB Power Amplifier (PA) for the linear modulation of the MTP700. It also includes a cartesian feedback loop to enhance its transmitter linearity and reduced splattering power into adjacent channels. The transmitter path consists of a forward path and a cartesian feedback loop. The for- ward path includes the LNODCT (Low Noise Offset Direct Conversion Transmitter) ASIC, Balun, Attenuator, and Power Amplifier.

  • Page 126: Frequency Generating Section

    4.2 - 4 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Frequency Generating Section The frequency generating section contains the following components: • TCXO REF. Oscillator. • Main Synthesizer - consists of the WPIC's PLL and the Main Voltage Controlled Oscillator (VCO).

  • Page 127: Digital & Audio Section

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 5 Digital & Audio Section The digital section includes the RedCap2 host micro-processor which is the controller of the Digital/RF Board. It controls the operation of the audio and transmitter, receiver, and synthesizer integrated circuits located in the RF section.

  • Page 128: Block Diagrams Description

    4.2 - 6 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Block Diagrams Description The block diagrams description cover Receiver Path, Transmitter Path, Frequency Gen- eration Section and Digital Section. Receiver Path The received signal (see Figure 4.2-2) from the antenna is directed by the Antenna...

  • Page 129: Transmitter Path

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 7 Transmitter Path When the radio is transmitting (see Figure 4.2-3), the microphone audio is sent to the GCAP3 (CODEC). The CODEC performs 13-bit analog-to-digital conversion and the dig- ital signal is routed to the DSP (part of RedCap2).

  • Page 130: Frequency Generating Section

    4.2 - 8 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Frequency Generating Section The frequency generating section contains the following components (see Figure 4.2-4): • TCXO REF. Oscillator. • Main Synthesizer - consists of the WPIC’s PLL and the Main Voltage Controlled Oscillator (VCO).
  • Page 131 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 9 RX Second Local Oscillator (LO) The second LO synthesizer supplies the second IF local oscillator frequency to the receiver. It produces 219.3 MHz that is divided by two in the WPIC in order to down-con- vert the received signal to the baseband.

  • Page 132: Digital & Audio Section

    4.2 - 10 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Digital & Audio Section The digital section (see Figure 4.2-5) contains the radio's RedCap2 RISC processor, DSP (embedded within), external memories and GCAP3. The DSP has its own processing memory.

  • Page 133: Detailed Circuit Description

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 11 Detailed Circuit Description Receiver Path, Detailed Circuit Description See Figure 4.2-6 From TETRA Main VCO Mixer Integrated CG=3.0dB I=5.0mA TETRA XTAL Gain=15dB LO Level= I=7.5 mA AntSW...
  • Page 134 4.2 - 12 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Front Filter (First Pre-selector) The signal arriving from the limiter is routed through the front SAW filter (FL500) into the Low Noise Amplifier (LNA) (U500) via a matching network C500, L501 and C501.
  • Page 135 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 13 Balun The Balun transforms the single ended input RF signal to a differential double-ended out- put. It consists of L507, C523, C522 and L508. The differential signal is routed to the WPIC (World Phone IC) at pins A4 and B4 (PREINI and PREINIB) via C651 and C652.

  • Page 136: Transmitter Path, Detailed Circuit Description

    4.2 - 14 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Transmitter Path, Detailed Circuit Description See Figure 4.2-7 3db power Phase splitter splitter 2.775V ESCORT ANT_EN (from RedCap2) VCNTO (from WPIC) Ld mos Ld mos PA Antenn a...
  • Page 137 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 15 The WPIC sends a 2.4MHz low-level differential reference clock signal (pins B11, TCLK; C10, TCLKB) to the LNODCT. It also sends a differential signal (pins A11, TSLOT; A10, TSLOTB) that marks the beginning and the end of each transmission time slot (whenever pin 8, WPIC_TXE signal is received from the RedCap2).
  • Page 138 4.2 - 16 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz The U800 amplifier gain is set in the factory using the VBLIN signal (from WPIC). The VBLIN voltage is amplified via a DC amplifier U907. Output voltage from U907 sets the quiescent current, and hence the gain of the LDMOS driver IC.

  • Page 139: Frequency Generating Section, Detailed Circuit Description

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 17 Frequency Generating Section, Detailed Circuit Description See Figure 4.2-8 This section describes the generating circuits that supply all the required frequencies for the required transmitter and receiver functions. These circuits are described as follows: •...
  • Page 140 4.2 - 18 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Main VCO and Main Synthesizer The main synthesizer components are WPIC, Loop Filter, VCO and buffer. It produces the LO signal. The main synthesizer functions are as follows: •...

  • Page 141: Digital & Audio Section, Detailed Circuit Description

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 19 Transmit PLL The TX VCO (Q463) is a discrete VCO that is controlled by the ESCORT IC U460. The VCO produces the TX frequency signals in the frequency band 806-870MHz. A discrete coil (resonator) Y460 and shunt capacitors are used as a tank circuit for VCO.
  • Page 142 4.2 - 20 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz RedCap2 (Microprocessor & DSP) Encryption PROM 2Kx24 DSP Peripheral Accelerator PRAM 40Kx24 DSP_IRQ STDB Baseband CODEC YROM 0Kx16 SRDB Serial Port XYA(16) SFSB(2) YRAM 15Kx16 XYRW,XYSEL,XYSTB SCKB(2)
  • Page 143 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 21 External Host Memories The RedCap2 Address bus is a 22-bit wide (0:21) and RedCap2 Data Bus is a 16-bit wide (0:15). RedCap2 uses two types of memories: Flash Memory The Flash memory is dedicated to the application software.
  • Page 144 4.2 - 22 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz GCAP3 The Global Control Audio Power (GCAP3) IC handles DC power distribution and audio processing (ie audio amplification and analog-to-digital/digital-to-analog conversions). It contains switching and linear regulators, audio preamplifiers, 13-bit CODEC, 14-channel 10-bit A/D Converter, 8-bit D/A Converter and interfaces with an external Audio Amplifier for receive audio.
  • Page 145 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 23 3.3V Switching Regulator An external 3.3V switching regulator is used to convert the battery voltage (7.2V) down to 3.3V to be used by GCAP3. This regulator can be set to fixed freq 600KHz (during Tx &...
  • Page 146 4.2 - 24 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz VREF2 Linear Regulator VREF2 is a programmable linear regulator. It is programmed using RedCap2 SPIB bus from 0.95V to 2.775V. For this radio, it is programmed to 2.775V which supplies the Tx/Rx LED, backlights and display.
  • Page 147 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 25 Radio Audio System See Figure 4.2-12 The audio system consists of the GCAP3 IC (U200) and the DSP (U301), both are located on the main board. The GCAP3 perform the analog task and part of the digital task of the audio system.
  • Page 148 4.2 - 26 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz RS232, SB9600, JTAG The RedCap2 processor (RCE) uses the three serial protocols: RS232/UART, SB9600, and JTAG to communicate with external devices via the bottom connector of the unit.

  • Page 149: Display And Keypad, Detailed Description

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 27 Display and Keypad, Detailed Description Display The LCD (Liquid Crystal Display) Module is a Graphic Display based upon the KS0741TB-01 display driver. It consist of LCD Holographic Glass, LED backlight and a 22 pin flex cable connected to the Keypad board.
  • Page 150 4.2 - 28 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Backlight and LEDs Backlight The keypad backlight consists of 8 green LEDs. There are 2 more LEDs in the LCD mod- ule that are connected in parallel to the keypad LEDs.
  • Page 151 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 29 Table 4.2-1 Bottom Connector Mode Table MODE ON_OFF/ BOTTOM BOTTOM JTAG/ FLASH OPTION1 OPTION2 Standard Normal (No Accessory) Modes USB Accessory / Computer >4.0V Emergency RS-232 (4 wire) / SSI...
  • Page 152 4.2 - 30 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Side Connector The side connector is intended to support connection to accessories such as PSM, RSM, Headset, 2 or 4-wire data terminals and SB9600 based devices. The side connector has 16 modes of operation as shown in Table 4.2-3.
  • Page 153 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 31 Signal Name Ext_Speaker+ Ext_Speaker- OPT B+ Ext_Mic SIDE_OPT2 SIDE_OPT1 Rx_Data Tx_Data CTS / BUSY_OUT RTS / BUSY_IN SIDE_OPT3 VIBRATOR Table 4.2-5 Side Connector Pin Out Table...
  • Page 154 4.2 - 32 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 155: 806-870 Mhz Board Layout, Schematics & Parts Lists

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 33 806-870 MHz Board Layout, Schematics & Parts Lists S100 S004 S002 S003 VR006 C324 C325 R306 R303 R301 C319 SH700 R477 C491 TP700 C720 R305 R304 R300...

  • Page 156: 806-870 Mhz Main Board Bottom Side Pcb No. 8485951Z04

    4.2 - 34 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz TP308 TP306 TP312 TP322 R118 TP501 TP500 TP302 TP301 TP304 TP320 R117 C222 Q102 VR106 SH730 Q731 SH500 C731 C734 SH201 R223 R116 TP316 C735 SH501 SH301...

  • Page 157: Controller Memory Schematic Diagram (Redcap 2) Sheet 1

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 35 64 Mb 4 M x 16 8 Mb Controller Memory Schematic Diagram (Redcap 2) sheet 1 of 2...

  • Page 158: Controller Memory Schematic Diagram (Redcap 2) Sheet 2

    4.2 - 36 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz MUX_CTRL=0 MUX_CTRL=1 LARGEST REF DES. NUMBERS Gen Port Ctrl Reg (GPCR) Gen Port Ctrl Reg (GPCR) DNP (Do Not Place) List C328 E302 GPCR = xxxxxxxx x00xxx00 GPCR = xxxxxxxx x11xxx11 VREF1_2.775V...

  • Page 159: Dc Supply & Audio Schematic Diagram (Gcap 3) Sheet 1

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 37 DUMMY VTS_2.3V_GCAP3 VREF1_2.775V V4_DRV FILT_3.3V_GCAP3 R296 Close to B+ R284 C285 C298 1.0uF C252 8200pF 10uF SIDE_OPT_SEL3 USB_PWR_RTS_RESETIN C249 4.7uF TxD_USB+ R235 C227 FILT_3.3V_GCAP3 MUX_CTRL TP201 4.7uF...

  • Page 160: Dc Supply & Audio Schematic Diagram (Gcap 3) Sheet 2

    4.2 - 38 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz ENV_TEMP Q201 C286 RT200 270pF SWB+ SOFT_TURN_OFF SWB+ U201 R229 MAX1685 FILT_3.3V_GCAP3 FILT_3.3V PWM1_1.8V TP205 EN_STBY EN_SHDN L202 47uH C234 PWM Filter ILIM_SS L201 E200 L200 0.1uF...

  • Page 161: I/O Interface Schematic Diagram Sheet 1

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 39 40-PIN CONNECTOR J100 R106 R107 DATA J100-38 SPIB_MOSI CLOCK J100-39 SPIB_CLK Backlight- J100-21 Backlight- RESET J100-22 RESET_OUT C112 C119 C113 C118 C114 C115 33pF 33pF 33pF 33pF...

  • Page 162: I/O Interface Schematic Diagram (Sheet 2

    4.2 - 40 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz 16-PIN CONNECTOR J110 INT_MIC+ J110-1 V3_2.775V INT_MIC- J110-2 TP100 TP102 TP103 TP101 C100 C101 J110-3 33pF 33pF R100 U100 EZAST21 (133K PULL DOWN IN GCPA3) IO_1 TxD_USB+...

  • Page 163: Switches And Associated Components Schematic Diagram (Sheet 1

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 41 SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP SPARK_GAP E020 E023 E026 E029 E032 E035 E038 E041 E084 E087 E090 E095 SPARK_GAP SPARK_GAP SPARK_GAP...

  • Page 164: Switches And Associated Components Schematic Diagram (Sheet 2

    4.2 - 42 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz VREF2_2.775V TX/RX LED D001 LNJ123W8P0MT R001 V3_2.775V GRN_LEDRED_LED R002 E001 BK20104M601 V3_2.775V KDSV_1 POS1 NEG1 VIBRATOR KDSV_2 POS2 NEG2 SIDE_OPT_SEL3 KDSV_7 POS3 NEG3 SIDE_OPT_SEL1 SIDE_OPT_SEL2 KDSV_8 POS4...

  • Page 165: Receiver Front End Schematic Diagram

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 43 RX_2.775V E501 L503 BK1005HM471 220nH RX_2.775V V4_2.775V GPO6/DCLICIN GP06_DCLICIN C527 C536 0.1uF 4.7uF Q501 C524 33pF TP501 C531 1000pF L513 C533 12nH 33pF PREINI L514 U502 120nH...

  • Page 166: Receiver Back End Schematic Diagram

    4.2 - 44 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Receiver Back End Schematic Diagram...

  • Page 167: Transmitter Schematic Diagram (Sheet 1

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 45 V4_2.775V C968 0.1uF R800 C833 E806 43pF L801 L800 C831 SH900 SH901 SH903 SH902 SH800 SH801 C832 R801 220nH 220nH BLM11B601S 43pF Q805 .022uF SHIELD SHIELD SHIELD...

  • Page 168: Transmitter Schematic Diagram (Sheet 2

    4.2 - 46 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz RAW_B+_RF SWB+ C937 L910 FL801 43pF 27nH 15B01 806MHz-915MHz C935 D901 43pF C949 43pF L912 J800 9.18nH E808 L911 C951 FBMH3216HM 9.96nH 43pF C936 C907 C908 C902...

  • Page 169: Frequency Generation Unit Schematic Diagram

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 47 Frequency Generation Unit Schematic Diagram...

  • Page 170: Escort Schematic Diagram

    4.2 - 48 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz ESCORT Schematic Diagram...

  • Page 171: Mhz Radio Parts List

    TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 49 806-870 MHz Radio Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description Part No. C216 2311049A72 Cap Tant Chip 10.0UF 10%...
  • Page 172 4.2 - 50 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C466 2113743L41 Cap Chip 10000 PF 10% X7R...
  • Page 173 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 51 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C910 2113743M08 Cap Chip 22000PF +80-20% D001...
  • Page 174 4.2 - 52 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. Q102 4809939C05 Tstr Dual NPN/PNP UMH 5...
  • Page 175 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 53 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R612 0662057M01 Res. Chip 0 5% 20X40...
  • Page 176 4.2 - 54 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 177: Troubleshooting (800 Mhz)

    “codeplug”. A radio codeplug can be read using the CPS programme. Test Procedures This section explains the procedures required to troubleshoot a MTP700 radio. The digital tests should be performed using the GoNoGo PATS test and TETRACom SW. To use the TETRACom you must go to test mode by using the command <Test Enter>.
  • Page 178 4.2 - 56 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Digital Analysis Test Use this test for troubleshooting the main board. After completing the setup procedure, power on the unit. Does the power Replace the supply show Main Board.
  • Page 179 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 57 Digital Analysis Test (Cont.) Initialize the DSP. Use the Digital Diagnostic SW. Did the unit pass the Check for defective initialize DSP REDCAP2 (U301) test? Load Setfiles to...
  • Page 180 4.2 - 58 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Digital Analysis Test (Cont.) Test the DSP memory Did the unit The DSP inside the pass the DSP REDCAP2 (U301) is memory test? defective. Note: This test will be performed Test the backlight by TetraCom SW application.
  • Page 181 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 59 DC Distribution (V2_2.775V) Test Use this test on a unit with the following symptoms: no power, no V2_2.775V, V1_2.775V, V3_2.775V, VREF1_2.775V, VREF2_2.775V. Note: The following are the DC power distribution voltages with their correct values and appropriate location to check the voltages: •...
  • Page 182 4.2 - 60 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (5.5V_RF) Test Use this test on a unit with the following symptoms: no 5.5V_RF. Check 5.5V_RF on C299 for 5.5Vdc Check traces to Is the voltage OK? the Escort section.
  • Page 183 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 61 DC Distribution (5V_RF) Test Use this test on a unit with the following symptoms: no 5V_RF. Check 5V_RF on C251 for 5Vdc Check traces to the RF...
  • Page 184 4.2 - 62 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (BOT_SWB+) Test Use this test on a unit with the following symptoms: no BOT_SWB+ Check R109 for 7.2Vdc Is the voltage OK? Go to V2_2.775V test.
  • Page 185 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 63 DC Distribution (SWB+ 7.2V) Test Use this test on a unit with the following symptoms: no 7.2Vdc SWB+. Check Q201 pin 2 or pin 3 for 7.2Vdc...
  • Page 186 4.2 - 64 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (V1_3V) Test Use this test on a unit with the following symptoms: no V1_3V. Check C211 for 3Vdc Check traces to Is the voltage OK? Escort section.
  • Page 187 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 65 DC Distribution (V2_2.775V) Test Check battery contact Pin-3 of J001 for 7.2Vdc Check the bench Is the voltage OK? Power Supply Check junction of F200 and VR201 for 7.2Vdc...
  • Page 188 4.2 - 66 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (V2_2.775V) Test (Cont.) Check Filt_B+ at C252 for 3.3Vdc Is the voltage OK? Replace GCAP3 (U200) Check TP316 for 32kHz clock with 2.7V amplitude Are frequency and...
  • Page 189 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 67 DC Distribution (V2_2.775V) Test (Cont.) Check SPI lines Clock and Data Are SPI lines See Digital Clock and Data Analysis tests correct? Check C210 for 2.775Vdc (V2_2.775V)
  • Page 190 4.2 - 68 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (V3_2.775V/PWM1_1.8V) Test Use this test on a unit with the following symptoms: no V3_2.775V, no PWM1_1.8V. Check C209, C258, C259 for 2.7Vdc (V3_2.775V) Refer to the DC Is the voltage OK? distribution (V2_2.775V)
  • Page 191 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 69 DC Distribution (V4_2.775V) Test Use this test on a unit with the following symptoms: no V4_2.775V. Check Q202 pin 2 for 2.775Vdc Check traces to the Rx Is the voltage OK? section, Freq.
  • Page 192 4.2 - 70 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz DC Distribution (VREF1_2.775V) Test Use this test on a unit with the following symptoms: no VREF1_2.775V. Check C285 for 2.775Vdc Check traces to Is the voltage OK? U307.
  • Page 193 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 71 DC Distribution (VREF2_2.775V) Test Use this test on a unit with the following symptoms: no VREF2_2.775V. Check C261 for 2.775Vdc Check traces to Is the voltage OK? D001, J100 pin19.
  • Page 194 4.2 - 72 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Standby Current Troubleshooting This test should be carried out only after the successful completion of the previous tests. Measure the radio standby current by using PATS station Check if there are shorts on the board: -check if RF PA Q800 is shorted to the ground.
  • Page 195 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 73 Receiver Troubleshooting Check Front Gain, using a RF probe on C540, frequency 109.65MHz. Check second LO. Check with all power Is the -16dBm<Power<-10dBm Inputs/Outputs of Ant. SW., gain below Freq = 219.3MHz...
  • Page 196 4.2 - 74 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Escort Troubleshooting TetraCom Commands (RFTONE mode) >test_Enter Perform the following: >11 timer on 1. Remove the Escort shield. >freq tx 806 2. Visually check all components and >main_vco on...
  • Page 197 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 75 Escort Troubleshooting (cont.) Perform Supply problem? Controller Test Perform VCO Test 1. Probe at R459 using spectrum 2. Connect external supply (1.5V to 4.5V) to L461 3. Adjust the external supply and check the frequency range.
  • Page 198 4.2 - 76 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Closed Loop Power Test This test should be carried out only after the successful completion of the previous tests. Tune the radio on PATS. Is the radio close loop output power <28dBm or 31dBm?
  • Page 199 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 77 Open Loop Power Test This test should be carried out only after the successful completion of the previous tests. Measure the Open Loop Power by using PATS.
  • Page 200 4.2 - 78 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Open Loop Power Test (Cont.) Check Tx line up from LNODCT U803 output till RF Is power <-4dBm? ldmos driver U800 input, replace damaged parts. Perform the Open Looop Power test again.
  • Page 201 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 79 Open Loop Power Test (Cont.) Measure the RF power at pin 24 of LNODCT (U803) and input of I/Q splitter U801. Perform Escort Is the level >0dBm? section tests.
  • Page 202 4.2 - 80 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Transmitter Current Consumption Test This test should be carried out only after the successful completion of the previous tests. Start TX current test. Is TX current >1.8A? (average TX current?) 1.
  • Page 203 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 81 2nd LO Troubleshooting Check DC supply for the Perform the following: Check for feedback problem. VCO: 1. Remove the 2nd_LO shield. 1. Check soldering of C751, 1. Check for 4.5V on 2.
  • Page 204 4.2 - 82 MTP700 Portable Radio / Detailed Service Manual TRANSCEIVER 800 MHz Synthesizer & VCO Troubleshooting Use this test on a unit with the following symptom: no Tx or Rx. TetraCom Commands Using a 50-ohm probe on the > 11 timer on spectrum analyzer, check the >...
  • Page 205 TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 83 Synthesizer & VCO Troubleshooting (Cont.) Check for the following: 4.5Vdc on R705. Possible VCO problem. Confirm that the resonator tab is Check for opens or shorts properly soldered.
  • Page 206 4.2 - 84 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 207: Programming The Radio

    PROGRAMMING THE RADIO MTP700 Portable Radio / Detailed Service Manual 5 - 1 CHAPTER 5 PROGRAMMING THE RADIO Before Using the Customer Programming Software (CPS) Before you begin programming, ensure the following: 1. Install the Customer Programming Software (CPS), FVN5051A, in your computer.

  • Page 208: Reading Codeplug

    5 - 2 MTP700 Portable Radio / Detailed Service Manual PROGRAMMING THE RADIO Reading Codeplug 1. Run the Customer Programming Software (CPS) on your computer. 2. Click the Toolbar “Read Phone” icon. Refer to the CPS Application Window Screen in the CPS User Guide, Publication No.

  • Page 209: Programming Frequency

    PROGRAMMING THE RADIO MTP700 Portable Radio / Detailed Service Manual 5 - 3 Programming Frequency Carry out the following steps if you need to add or change the radio frequencies. Note: Save your radio factory frequencies before you start programming by using “File”, “Save As”.

  • Page 210: Restoring Factory Frequencies Of The Radio

    5 - 4 MTP700 Portable Radio / Detailed Service Manual PROGRAMMING THE RADIO Restoring Factory Frequencies of the Radio To restore the factory frequencies of the radio, perform the following steps: 1. After testing your radio on the IFR, connect the setup as shown in Figure 5-1.

  • Page 211: Manual Mode Testing

    3. Press any key consecutively. The display shows vertical lines that becomes thicker with every key press, until it becomes fully dark. 4. Press any key again. The display shows the Motorola logo. 5. Press any key again. The display shows “Vibrator On”.
  • Page 212 5 - 6 MTP700 Portable Radio / Detailed Service Manual PROGRAMMING THE RADIO 11. Press any key again. The display shows “Earpiece Tone Test”, a tone is heard via the earpiece. 12. Press any key again. The display shows “Audio Loopback Test”, speak into the microphone, you should hear your voice via the earpiece.

  • Page 213: Maintenance

    MAINTENANCE MTP700 Portable Radio / Detailed Service Manual 6 - 1 CHAPTER 6 MAINTENANCE Introduction This chapter provides details about the following: • Preventive Maintenance (inspection and cleaning) • Safe Handling of CMOS and LDMOS Devices • Repair Procedures and Techniques •...
  • Page 214 6 - 2 MTP700 Portable Radio / Detailed Service Manual MAINTENANCE Cleaning External Plastic Surfaces Apply the 0.5% detergent-water solution sparingly with a stiff, non-metallic, short-bristled brush to work all loose dirt away from the radio. Use a soft, absorbent, lintless cloth or tis- sue to remove the solution and dry the radio.

  • Page 215: Safe Handling Of Cmos And Ldmos Devices

    • Ground the working surface of the service bench to protect the CMOS device. We recommend using the Motorola Static Protection Assembly (part number 0180386A82), which includes a wrist strap, two ground cords, a table mat, and a floor mat.

  • Page 216: Repair Procedures And Techniques - General

    When damaged parts are replaced, identical parts should be used. If the identical replacement part is not locally available, check the parts list for the proper Motorola part number and order the part from the nearest Motorola Radio Support Center. For details, please refer to relevant Support Depots on page 1-4 to 1-6.

  • Page 217: Radio Disassembly - Detailed

    MAINTENANCE MTP700 Portable Radio / Detailed Service Manual 6 - 5 Radio Disassembly - Detailed Front Cover from Chassis Disassembly 1. Turn off the radio. 2. Remove the battery: a. Pull down on the two battery-release buttons. b. With the buttons pulled down, the top of the battery will fall from the radio.
  • Page 218 6 - 6 MTP700 Portable Radio / Detailed Service Manual MAINTENANCE 4. Remove the Talkgroup knob off its shaft. Talkgroup Knob Figure 6-2 Talkgroup Knob Removal NOTE The knob slides on and off. However, it is supposed to fit very tightly on its shaft.
  • Page 219 MAINTENANCE MTP700 Portable Radio / Detailed Service Manual 6 - 7 6. Push the Talkgroup switch shaft back into radio housing to slide chassis away. 7. Gently remove flex from the socket connector. 8. Lay the chassis down. Rotate the front cover backward and slightly away from the chassis.

  • Page 220: Chassis Assembly Disassembly

    6 - 8 MTP700 Portable Radio / Detailed Service Manual MAINTENANCE Chassis Assembly Disassembly 1. Use a TORX™ screwdriver with a T6 head to remove the five screws holding the secondary shield and main board to the chassis. Secondary Shield...

  • Page 221: Radio Reassembly - Detailed

    MAINTENANCE MTP700 Portable Radio / Detailed Service Manual 6 - 9 Radio Reassembly - Detailed Chassis Assembly Reassembly 1. Reassemble the O-ring. The tabs on the O-ring should reach around the chassis and point down. 2. Place the eight small O-ring retainers into their slots in the chassis.
  • Page 222 6 - 10 MTP700 Portable Radio / Detailed Service Manual MAINTENANCE 10. Turn on the Volume knob and make sure radio powers up normally. Radio Chassis Figure 6-6 Fastening the Chassis...

  • Page 223: Service Aids

    The following table lists the service aids recommended for working on the radio. While all of these items are available from Motorola, most are standard workshop equipment items and any equivalent item capable of the same performance may be substituted for the item listed.

  • Page 224: Mtp700 Unit - Exploded View

    6 - 12 MTP700 Portable Radio / Detailed Service Manual MAINTENANCE MTP700 Unit - Exploded View Figure 6-7 MTP700 - Exploded view...
  • Page 225 MTP700 Portable Radio / Detailed Service Manual 6 - 13 MTP700 components are listed in the table below. The first column marked with a # sign provides you with the call out numbers of the components as marked in MTP700 - Exploded view.
  • Page 226 6 - 14 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 227: Keypad Board Layout, Schematics & Parts List

    KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST MTP700 Portable Radio / Detailed Service Manual 7 - 1 CHAPTER 7 KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST Keypad Board Top Side PCB No. 8466556A01...

  • Page 228: Keypad Board Bottom Side Pcb No. 8466556A01

    7 - 2 MTP700 Portable Radio / Detailed Service Manual KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST Keypad Board Bottom Side PCB No. 8466556A01...

  • Page 229: Keypad Board Schematic Diagram

    KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST MTP700 Portable Radio / Detailed Service Manual 7 - 3 40 pin Main To Keypad conn J100 0.1uF 0.1uF KEYPAD BACKLIGHT BACKLIGHT+ J1-19 BACKLIGHT- J1-21 FLEX to Display Board ROW3 J1-25 ROW3 1.0uF .01uF...

  • Page 230: Keypad Board Parts List

    7 - 4 MTP700 Portable Radio / Detailed Service Manual KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST Keypad Board Parts List Circuit Motorola Description Part No. Circuit Motorola Description Part No. 4809496B11 LED CHIP YEL-GRN 1608 CL191YG 2113928N01 CAP CER CHIP 0.1uF 10%...

  • Page 231: Flex Layout, Schematics & Parts Lists

    FLEX LAYOUT, SCHEMATICS & PARTS LISTSMTP700 Portable Radio / Detailed Service Manual 8 - 1 CHAPTER 8 FLEX LAYOUT, SCHEMATICS & PARTS LISTS Interconnect Flex <- TO KP TO CTRL -> 8480475Z03 REV B Front Metal View From Top Side Back Metal View From Top Side...

  • Page 232: Schematic For Interconnect Flex

    8 - 2 MTP700 Portable Radio / Detailed Service Manual FLEX LAYOUT, SCHEMATICS & PARTS Schematic for Interconnect Flex J100 TO KEYPAD TO CONTROLLER EXT_MIC EXT_MIC VS_CS VS_CS SW_B+ SW_B+ VDDD VDDD VS_AUDSEL VS_AUDSEL DET_AUD_SND DET_AUD_SND RX_AUD_RTN RX_AUD_RTN TX_AUD_SND TX_AUD_SND...

  • Page 233: Universal Connector Flex

    FLEX LAYOUT, SCHEMATICS & PARTS LISTSMTP700 Portable Radio / Detailed Service Manual 8 - 3 Universal Connector Flex EAR PIECE TP10 TP11 TP12 TP13 SPEAKER Back Metal Front Metal View From Top Side View From Top Side...

  • Page 234: Schematic For Universal Connector Flex

    8 - 4 MTP700 Portable Radio / Detailed Service Manual FLEX LAYOUT, SCHEMATICS & PARTS Schematic for Universal Connector Flex 24 PIN CONNECTOR 13 PIN UNIVERSAL CONN J002 VIBRATOR J002-1 J002-2 SIDE_OPT3 J002-3 SIDE_RTS SIDE_CTS J002-4 TX_DATA J002-5 RX_DATA J002-6...

  • Page 235: Display Flex

    FLEX LAYOUT, SCHEMATICS & PARTS LISTSMTP700 Portable Radio / Detailed Service Manual 8 - 5 Display Flex Front Metal View From Top Side Back Metal View From Top Side...

  • Page 236: Schematic For Display Flex

    8 - 6 MTP700 Portable Radio / Detailed Service Manual FLEX LAYOUT, SCHEMATICS & PARTS Schematic for Display Flex TO KEYPAD BRD TO DISPLAY MODULE DATA J2-1 J11-1 J2-2 J11-2 DISPLAY_RS RESET J2-3 J11-3 CHIP SELECT J2-4 J11-4 J2-5 J11-5 V3_2.775V...

  • Page 237: Bottom Flex

    FLEX LAYOUT, SCHEMATICS & PARTS LISTSMTP700 Portable Radio / Detailed Service Manual 8 - 7 Bottom Flex INT MIC Back Metal Front Metal View From Top Side View From Top Side...

  • Page 238: Schematic For Bottom Flex

    8 - 8 MTP700 Portable Radio / Detailed Service Manual FLEX LAYOUT, SCHEMATICS & PARTS Schematic for Bottom Flex 16 PIN CONNECTOR INT MIC INT_MIC+ J1-1 43pF INT_MIC- J1-2 J1-3 USB+/TXD(D+)/TDO J1-4 USB-/RXD(D-)/TDI J1-5 USB Power/RTS/Reset_in J1-6 SWB+ J1-7 CTS/MCU_DE...

  • Page 239: Replacement Parts And Kits

    Radio Service Center; where it is serviced. The MTP700 portables are programmed at the factory. They cannot be tuned at the field service level. Level 1 and Level 2 Maintenance...

  • Page 240: Service Kits

    MTP700, 806-870 MHz, 1 W, 25 kHz, with Continuous Rotary knob for group selection (CR) MTP700, 806-870 MHz, 1 W, 25 kHz, with End Stop knob for group selection (ES) MTP700, 806-870 MHz, 1 W, 25 kHz, with End Stop knob for group selection (ES), Korean model 380-430...
  • Page 241 REPLACEMENT PARTS AND KITS MTP700 Portable Radio / Detailed Service Manual A - 3 380-430 Description 806-870 MHz Transceiver FRU 806-870M 1W 25K CR (Korean) PMUF1159AS Transceiver FRU 806-870M 1W 25K ES (Korean) PMUF1160AS Transceiver FRU 380-430M 1W 25K CR-TEA1 (Chinese)
  • Page 242 A - 4 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 243: Connector Pin Functions

    CONNECTOR PIN FUNCTIONS MTP700 Portable Radio / Detailed Service Manual B - 1 APPENDIX B CONNECTOR PIN FUNCTIONS General This appendix describes the connector pin functions for the Radio. The description gives information on the type of signals, voltages and current conditions. Pins which are...
  • Page 244 B - 2 MTP700 Portable Radio / Detailed Service Manual CONNECTOR PIN FUNCTIONS Name Function Description EXT_SPEAKER+ Speaker + (pin 1) and Speaker - (pin 2) are used for the external speaker. Typical output power is 0.5W for a 20 ohm load.

  • Page 245: Bottom Accessory Connector Pin Assignment

    CONNECTOR PIN FUNCTIONS MTP700 Portable Radio / Detailed Service Manual B - 3 Bottom Accessory Connector Pin Assignment 1 1 1 1 1 1 1 1 1 1 1 1 Headset Indication / Key_Fail On_Off/JTAG / Flash Mode Bottom_Option_2 Bottom_Option_1...
  • Page 246 B - 4 MTP700 Portable Radio / Detailed Service Manual CONNECTOR PIN FUNCTIONS Name Function Description POWER GROUND IN/OUT Used as ground. USB+/TXD (D+)/TDO IN/OUT +ve signal for the USB bus/transmit data in RS-232 mode/serial output in JTAG Mode. USB-/RXD (D-)/TDI...

  • Page 247: Test Equipment

    C - 1 APPENDIX C TEST EQUIPMENT Any level 3 repairs can deeply affect the performance of the MTP700 radio and may cause a new tuning procedure. This tuning procedure can only be applied by cerain authorised Motorola depots where the appropriate TEST & TUNE EQUIPMENT is available.
  • Page 248 C - 2 MTP700 Portable Radio / Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 249: Self Check (Error & Fail Codes

    This appendix describes the possible self check error codes for the MTP700 Portable Radios. Self Check Error Codes Table D-1 is the possible self check error (non fatal) codes for the MTP700 Portable Radios. No corrective action is required. Message...
  • Page 250 D - 2 MTP700 Portable Radio / Detailed Service Manual SELF CHECK (ERROR & FAIL CODES) Message Cause Fail00807 CP - Invalid handler Fail00808 CP - Invalid length Fail00809 CP - Invalid index Fail0080A CP - Invalid offset Fail0080B CP - Invalid header pointer...

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