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Nokia RH-6 Series Baseband Description & Troubleshooting
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Nokia RH-6 Series Baseband Description & Troubleshooting

Nokia RH-6 Series Baseband Description & Troubleshooting

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Customer Care Solutions
RH-6 Series Cellular Phones
6 - Baseband Description &
Troubleshooting
© 2003 Nokia Corporation.
Issue 1 10/2003
Page 1
Company Confidential

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  • Page 1 Customer Care Solutions RH-6 Series Cellular Phones 6 - Baseband Description & Troubleshooting © 2003 Nokia Corporation. Issue 1 10/2003 Page 1 Company Confidential...

  • Page 2: Table Of Contents

    Phone is dead ......................50 Flash faults .........................51 Phone is jammed ......................53 Phone does not charge ....................55 SIM card error ......................56 Audio faults .......................57 External earpiece failure ....................60 Accessory detection troubleshooting .................62 © 2003 Nokia Corporation. Page 2 Issue 1 10/2003...
  • Page 3 Company Confidential RH-6 CCS Technical Documentation 6 - BB Description & Troubleshooting UI failure ........................63 © 2003 Nokia Corporation. Issue 1 10/2003 Page 3...
  • Page 4 RH-6 Company Confidential 6 - BB Description & Troubleshooting CCS Technical Documentation [This page intentionally blank] © 2003 Nokia Corporation. Page 4 Issue 1 10/2003...

  • Page 5: Baseband Top-Level Description

    The UPP is the Universal Phone Processor and contains DSP, MCU and some internal memory. Baseband block diagram The below system block shows the main BB function blocks. Figure 1: Baseband Block Diagram © 2003 Nokia Corporation. Issue 1 10/2003 Page 5...

  • Page 6: Rh-6 Baseband Feature List

    3.1 V • Higher extreme voltage (fast charging): 4.4 V Temperature conditions Operational temperature range (all specifications met within this range) -10°C..+55°C Functional temperature range (Reduced performance) -30°C..+70°C Storage temperature range: -30°C..+85°C © 2003 Nokia Corporation. Page 6 Issue 1 10/2003...

  • Page 7: Frequencies In Baseband

    • Double sided assembled • Through holes, vias and buried vias are possible The PWB is prepared for I-Line underfilling of UEM, UPP, touchpad controller and Combo memory (64+4 Mbit SRAM/Flash). © 2003 Nokia Corporation. Issue 1 10/2003 Page 7...

  • Page 8: Baseband Architecture

    Auxiliary A/D converter • Real time logic • 32 kHz crystal oscillator • SIM interface and drivers • Security logic • Storage of IMEI code • Buzzer and vibra motor drivers © 2003 Nokia Corporation. Page 8 Issue 1 10/2003...

  • Page 9: Energy Management

    • No supply • Backup • Power off • Reset • Power on • Sleep • Protection © 2003 Nokia Corporation. Issue 1 10/2003 Page 9...
  • Page 10 RH-6 Company Confidential 6 - BB Description & Troubleshooting CCS Technical Documentation Figure 2 UEM state diagram © 2003 Nokia Corporation. Page 10 Issue 1 10/2003...
  • Page 11 Instead the unregulated backup battery voltage VBACK supplies the output of the VRTC. All other regulators are disabled and the phone has no functionality. The UEM will recover from BACK_UP mode into RESET mode if VBAT rises above V MSTR+ © 2003 Nokia Corporation. Issue 1 10/2003 Page 11...
  • Page 12 The temperature circuitry measures the on- chip temperature. In case of charging over temperature, the circuit turns the charging switch off. In case of over temperature in any of the regulators, the UEM powers off. © 2003 Nokia Corporation. Page 12 Issue 1 10/2003...
  • Page 13 The regulators VR1A, VR1B, VR2 - VR7 and IPA1 - IPA4 are controlled by the DSP via the DBus. VR4 - VR7 are controlled by the UEM as well and are disabled in sleep regard- © 2003 Nokia Corporation. Issue 1 10/2003...

  • Page 14: Dc Characteristics

    The following table reflects the specifications of voltage and current regulators within the UEM: Table 2: UEM regulator outputs Output Voltage (V) Output Current Regulator Target (mA) VR1A 4.75 2.70 2.78 2.86 2.70 2.78 2.86 © 2003 Nokia Corporation. Page 14 Issue 1 10/2003...

  • Page 15: Charging

    Management (EM) software and to protect against EMC into the baseband area. The charger is connected to the phone via the DCT3 bottom connector or the charger pads of the Pop-port system connector. © 2003 Nokia Corporation. Issue 1 10/2003 Page 15...

  • Page 16: Audio Circuitry

    The main topology comes from other phones using BB4.0 engine, where the audio-HW is mostly integrated into the UEM-ASIC. The biggest difference is that Maxwell has also integrated hands-free (IHF). © 2003 Nokia Corporation. Page 16 Issue 1 10/2003...
  • Page 17 2.2mm. Internal Microphone circuitry is driven single ended. Microphone needs bias voltage, which is provided by UEM and is fed through a resistor to the microphone. A resistor is © 2003 Nokia Corporation. Issue 1 10/2003 Page 17...

  • Page 18: Acoustics

    This earpiece is mounted into the UI-shield assembly, the sealing of the back and front volume are implemented in the UI-shield by die casting. This sealing part also provides the sealing against the A-cover. © 2003 Nokia Corporation. Page 18 Issue 1 10/2003...
  • Page 19 Due to the fact that the IHF enclosure is also carrying the antenna radiator, the whole assembly is named antenna assembly. Due to heat stacking of the antenna assembly, it cannot be disassembled and in case of failure only be exchanged as one complete assembly. © 2003 Nokia Corporation. Issue 1 10/2003 Page 19...

  • Page 20: Audio Modes

    Audio modes There are six different audio configurations. These can create following audio modes: • Hand portable • Integrated hands-free • Headset • Loop set • External hands-free © 2003 Nokia Corporation. Page 20 Issue 1 10/2003...
  • Page 21 HDB-4: Mono Headset, boom design HDC-xxx:Mono Headset, traditional design The audio sources are routed according to the following table: Table 5: Headset mode audio routing Internal Accessory Accessory Audio Source Earpiece Microphone speaker receive path transmit path Speech © 2003 Nokia Corporation. Issue 1 10/2003 Page 21...
  • Page 22 Table 7: External hands-free mode audio routing Internal Accessory Accessory Audio Source Earpiece IHF speaker Microphone receive path transmit path Speech Ringing tones, SMS tones Keypad tones Warning / Error tones Game tones © 2003 Nokia Corporation. Page 22 Issue 1 10/2003...

  • Page 23: User Interface

    L: 0.3xVDDI LCDUI(0) H: 0.7xVDDI H: VDDI Serial input clock L: 0 L: 0.3xVDDI MHz Serial data clock speed LCDUI(2) H: 0.7XVDDI H: VDDI Chip select L: 0 L: 0.3xVDDI (Active low) © 2003 Nokia Corporation. Issue 1 10/2003 Page 23...
  • Page 24 Table 10: LCD Interface Maximum Ratings Item Symbol Rating Unit Power Supply voltage -0.3 to + 4.0 Power supply voltage (logic) -0.3 to + 4.0 Signal Input voltage -0.3 to Vddi + 0.5 LED input current © 2003 Nokia Corporation. Page 24 Issue 1 10/2003...
  • Page 25 Figure 10: Rise and fall time in input and output Table 12: Rise and fall times in input and output of display driver Parameter Symbol Unit Input Tr, tf Output Tr, tf © 2003 Nokia Corporation. Issue 1 10/2003 Page 25...

  • Page 26: Touchpad

    UPP cannot interface the controller directly with HW so the SPI 3-wire protocol interface is made with MCU SW. The data is read from the touchpad plates using a Texas Instruments TSC2046 controller. © 2003 Nokia Corporation. Page 26 Issue 1 10/2003...

  • Page 27: Led Power Supply For Display And Touchpad Module

    (on/off). It is possible to control the LED brightness by PWM to achieve smooth on/off operation. RH-6 Flip backlighting is implemented with Dual transistor. Four Blue LED’s (CL-191B1 are connected in parallel with shunt resistors in series. Constant current is set by exter- © 2003 Nokia Corporation. Issue 1 10/2003 Page 27...

  • Page 28: El Power Supply For Touchpad Module

    24-pin male-female connector and the flip module uses the same 10-pin connector as the UI board. 5x4-matrix keyboard is used in RH-6. Key pressing is detected by scanning procedure. Keypad signals are connected UPP keyboard interface. © 2003 Nokia Corporation. Page 28 Issue 1 10/2003...
  • Page 29 UPP are reset and columns are written back to zero. ROW0 ROW0 ROW1 ROW1 ROW2 ROW2 ROW3 ROW3 ROW4 ROW4 COL0 COL0 COL1 COL1 COL2 COL2 COL3 COL3 UPP interrupt Figure 15. ROW1 and Col3 key pressed © 2003 Nokia Corporation. Issue 1 10/2003 Page 29...
  • Page 30 RH-6 Company Confidential 6 - BB Description & Troubleshooting CCS Technical Documentation "up" "down" ROW0 ROW1 COL0 Figure 16. Side (volume) keys © 2003 Nokia Corporation. Page 30 Issue 1 10/2003...

  • Page 31: Sim Interface

    The comparator offset is such that the comparator output does not alter state as long as the battery is connected. The BSI comparator threshold level is 2.1 V with 75 mV hysteresis. Figure 17: UPP, UEM and SIM Connections © 2003 Nokia Corporation. Issue 1 10/2003 Page 31...

  • Page 32: Bb-Rf Interface

    The values indicated in the table below are input requirements of the device in the "to column" when nothing else is stated. Values are refenced to GND unless other wise spec- © 2003 Nokia Corporation. Page 32 Issue 1 10/2003...

  • Page 33: Voltage Regulators In Bb For Rf

    Vtxc_max Voltage regulators in BB for RF Values are refenced to GND unless otherwise specified. Table 16: Voltage Supplies and References Signal name From Parameter Unit Notes Regulators RF regulators © 2003 Nokia Corporation. Issue 1 10/2003 Page 33...
  • Page 34 Settling Time UEM Output Voltage 2.70 2.78 2.86 Supply to: VCO supply voltage 2.55 2.78 2.85 range Load Current Load Capacitance 1000 1200 mΩ ESR Settling Time µs Sleep to Active © 2003 Nokia Corporation. Page 34 Issue 1 10/2003...
  • Page 35 1.366 Used inside UEM Output Voltage 1.325 1.35 1.375 MJOELNER as VREF01 VBEXT Mjoelner Input Voltage Load Current 1.35V refer- Load Capacitance 1000 1200 ence Settling Time µs Sleep to Active © 2003 Nokia Corporation. Issue 1 10/2003 Page 35...

  • Page 36: System Connector Interface

    Note: MBUS function, (included in previous accessory interfaces, e.g. DCT-3) is no more supported by Pop-port interfaces. Pop-port system connector is mechanically and electrically not backward compatible with any earlier Nokia accessory interfaces, except the charger connector. Figure 18: Pop Port System Connector Table 17: System connector interface description...

  • Page 37: Accessory Control Interface (Aci)

    This changes is leading to an interrupt. These HeadInt interrupts are initiated the accessory detection or removal sequence. If no accessory inserted / connected the only active part on the Pop-port interface is the ACI line. © 2003 Nokia Corporation. Issue 1 10/2003 Page 37...
  • Page 38 2a) If the phone detect a HeadInt interrupt from low to high transition in 20ms time- frame, then an advanced accessory is connected 3. ACI chip reset (3000- 4000us) 4. Power up delay (50-400us) 5. Start bit (50us) 6. Learning sequence (567-1700us) 7. ACI communication © 2003 Nokia Corporation. Page 38 Issue 1 10/2003...
  • Page 39 4a) If no HeadInt interrupt comes in the next 100ms the accessory is really removed. FBUS FBUS is an asynchronous data bus with separate TX and RX signals. Default bit rate of the bus is 115.2 Kbit/s. © 2003 Nokia Corporation. Issue 1 10/2003 Page 39...
  • Page 40 FBUS is used as additional communication channel from phone to accessory and vice versa. There is two types of accessories which it uses: 1. Nokia Serial Bus Accessory, AT mode 2. Fbus Phonet mode accessory From HW-point of view, this does not make any difference.

  • Page 41: Hookint

    RH-6 can be charged via a DC-plug or charging pins on the system connector. Further- more, it supports only 2-wire charging. DC-Plug Like most Nokia phones, RH-6 uses a 3.5mm DC-plug. Nevertheless, it is possible to use a 3-wire charger, but the PWM inside these chargers is not supported. VCHAR pins of system connector The VCHAR and ChargeGND pin are directly connected to the normal charger lines of the ©...

  • Page 42: Voltages And Currents

    Max bandwidth from the phone XEAR P Differential Positive audio out signal. voltage swing Max bandwidth from the phone Not used in RH-6 (grounded) Not used in RH-6 (grounded) © 2003 Nokia Corporation. Page 42 Issue 1 10/2003...

  • Page 43: Baseband Calibration

    25400 29000 BSI GAIN 1180 BTEM GAIN 1980 2280 BTEM GAIN (No calibration) 2127 2127 VBAT SCAL OFFSET 2300 2700 VBAT SCAL 10000 11000 VCHAR 58000 62000 ICHAR GAIN 3850 4650 © 2003 Nokia Corporation. Issue 1 10/2003 Page 43...

  • Page 44: Baseband Test Points

    From UPP to LCD driver J310-X300/3 LCD serial data 1.8V digital signal From UPP to LCD driver SCLK J309-X300/4 LCD clock 3.25MHz digital clock signal From UPP to LCD driver 1.8V © 2003 Nokia Corporation. Page 44 Issue 1 10/2003...
  • Page 45 EXTRDX J417 Flash memory read enable 1.8V digital signal FLSCLK J419 Flash memory clock 3.5MHz digital clock signal In burst mode 1.8V FLSCSX J420 Flash memory chip select 1.8V digital signal © 2003 Nokia Corporation. Issue 1 10/2003 Page 45...

  • Page 46: Test Points On Bottom-Side

    J306/INF_N J305/IHF_P TXC/J702 VBATT J421/RFBUSCLK J423/RFBUSEN1 J424/RESETX_MJO TXP/J701 VCOR J422/RFBUSDA VFLASH2 VFLASH1 R420/RFCLK VANA J405/UEMINT J415/DBUSEN1X J413/DBUSCLK J402/PURX J418/FLS2CSX J414/DBUSDA J102/BTEMP J419/FLSCLK PRODTP/GND J416/EXTWRX FBUSRXO MBUS J417/EXTRDX FBUSTXO J420/FLSCSX J110/GND J109/VCHAR © 2003 Nokia Corporation. Page 46 Issue 1 10/2003...

  • Page 47: Test Points On Top-Side

    J310/X302-3 SDA J309/X302-4 CLK J301/VLED+ J302/VLED- J315/X302-6 VDD J311/X302-5 CSX J101/BSI J100/VBAT J106/GND J112/VBAT J111/GND J473/STRXD J471/STITXD J472/STICLK J470/VBAT J474/GND J336/FLIP_COL2 J335/FLIP_ COL1 J337/FLIP_COL3 J334/FLIP_ COL0 J338/FLIP_LED+ J331/FLIP_ ROW0 J333/FLIP_ROW2 J332/FLIP_ ROW1 © 2003 Nokia Corporation. Issue 1 10/2003 Page 47...

  • Page 48: Baseband Troubleshooting

    The first thing to do is carry out a through visual check of the module. Ensure in particu- lar that: a) there are no mechanical damages b) solder joints appear OK Secondly, try to reflash phone. © 2003 Nokia Corporation. Page 48 Issue 1 10/2003...

  • Page 49: Top Level Flowchart

    Flash faults not work Phone does not Phone is start up or the phone is jammed jammed Charging does not work Charger Phone does not read SIM card SIM card TOP 2 © 2003 Nokia Corporation. Issue 1 10/2003 Page 49...
  • Page 50 RH-6 Company Confidential 6 - BB Description & Troubleshooting CCS Technical Documentation © 2003 Nokia Corporation. Page 50 Issue 1 10/2003...

  • Page 51: Phone Is Dead

    Is phone flash Phone is Phone current is <50mA programing OK? jammed Flash faults Phone current is ~54mA Check BSI line: Change UEM Is phone in LOCAL C100,R202,R206, MODE? C240 Change components Retest © 2003 Nokia Corporation. Issue 1 10/2003 Page 51...

  • Page 52: Flash Faults

    Measure FBUSTX line Change UEM during flash programming. Is it 1.8V.(testpoint J411) Change UPP The phone does not set the flashbus TXD line low after the startup. Memory faults page © 2003 Nokia Corporation. Page 52 Issue 1 10/2003...
  • Page 53 ID wrong ID's -> change UPP Change Memory Chip according to Phoenix messages "Flash informs about a failure" If both chips report during flashing wrong ID's -> change UPP Retest © 2003 Nokia Corporation. Issue 1 10/2003 Page 53...

  • Page 54: Phone Is Jammed

    Measure 26MHz R610,C603,605,606, 26MHz from B601.Is it RFClk form R420.Is it OK? 607,R617.If OK,change N601. Check R420,C420.R426,C4 26.If OK,change UPP. Measure PURX signal from testpoint J402.Is it Change UEM high(1.8V)? Jammed page2 © 2003 Nokia Corporation. Page 54 Issue 1 10/2003...
  • Page 55 Change UEM Is it OK? during phone info read from testpoint J412. Is it OK? Measure FBUSTX during phone info read Change UPP from testpoint J411. Is it OK? Re-test Change UEM © 2003 Nokia Corporation. Issue 1 10/2003 Page 55...

  • Page 56: Phone Does Not Charge

    Check R202, R207, OK? (0319 C220 and lines @25°C) Check X102, R200, Other ADC values F100, V100, L100 and are OK? lines Flash phone and re-calibrate Change Charging works? D200(UEM) Retest © 2003 Nokia Corporation. Page 56 Issue 1 10/2003...

  • Page 57: Sim Card Error

    If still wrong VSIM Is it 3V? voltage change UEM Check SIM lines. Check SIM If OK change R388. power Up sequency. If still fail change Is it OK? UEM. Change UPP © 2003 Nokia Corporation. Issue 1 10/2003 Page 57...

  • Page 58: Audio Faults

    R151,C179,C180 pads. Is it ~1.38V to and line. If OK GND? change UEM. Measure MICB2 voltage from XMICP pads. Is it ~2.2V? Audio Faults 2 Audio Faults 3 Earpiece 2 © 2003 Nokia Corporation. Page 58 Issue 1 10/2003...
  • Page 59 Measure sine signal Measure sine from earpiece pads. Is signal at UEM(R172) Change UEM it ~320m Vpp? is it ~200m Vpp? Check R169, R162, Change UPP C170, C166, C174, C173 and lines. Retest © 2003 Nokia Corporation. Issue 1 10/2003 Page 59...
  • Page 60 MICP 155,L153,C154 and line. pads. Is it >1.0VDC? If OK change UEM. Check R153,R157,C153,C159,C Audio Faults 3 171,C172 and line. If OK change UEM. If still fail change UPP. © 2003 Nokia Corporation. Page 60 Issue 1 10/2003...

  • Page 61: External Earpiece Failure

    Measure DC volts on R173,C150,C176,C m ic pins of connector. 184,R158, Is it ~2.1VDC to R171,L102,C107,C GND? 108,X101,line. If ok change UEM. check R169,R162,C170,C Audio Faults 4 166,C173, C174, lines. If ok change © 2003 Nokia Corporation. Issue 1 10/2003 Page 61...
  • Page 62 C162, R167, R164, ~1.8V R165, R163,C161, lines. If ok change N150 Check C164,C165,L151, Check R168, line. If ok L152, C177, C178, Vbat. chagne N150. If still fail, If ok, change N150 change UEM. © 2003 Nokia Corporation. Page 62 Issue 1 10/2003...

  • Page 63: Accessory Detection Troubleshooting

    Check signal,does it toggle R102, R109, low when accessory and L106 is connected? and R103. Check signal Check from R162,L103, connector It is OK? X101 Check L102, L103,R172, C170,C166 Change UEM © 2003 Nokia Corporation. Issue 1 10/2003 Page 63...
  • Page 64 RH-6 Company Confidential 6 - BB Description & Troubleshooting CCS Technical Documentation UI failure The electrical connection of flip module, 1ah, is illustrated: Electrical connection of flip flexi © 2003 Nokia Corporation. Page 64 Issue 1 10/2003...
  • Page 65 R308,R309 and and SCLK (J307) lines. If OK, signals. Are voltage change UPP. levels ~1.8V? Are the display LED's Illumination working when key is fault pressed or enabled by Phoenix SW ? © 2003 Nokia Corporation. Issue 1 10/2003 Page 65...
  • Page 66 Is it OK? Measure VLED+. Check N300, L300, V300, R300, VLED+ = ~7.2V when LED C303, C304 and C305. driver (N300) is enabled. If not OK, change defect part Are they OK? Retest © 2003 Nokia Corporation. Page 66 Issue 1 10/2003...
  • Page 67 Check X305 (solder Change X305 joints). Is it OK? Check VFLASH2 Measure Voltage of VEL, from UEM and ELEN (X305/17 & 18). (C204). If not VEL & VELEN = ~2.8V OK, change Retest © 2003 Nokia Corporation. Issue 1 10/2003 Page 67...
  • Page 68 FAIL, change working? Is it ~1.8V? Measure COL0 Check S301 and from S301 when COL0 line. If OK, pressed. Is there change Z300.If still 50us pulse? FAIL, change UPP Continue Change UPP © 2003 Nokia Corporation. Page 68 Issue 1 10/2003...
  • Page 69 J403 when key is X305. If OK, change pressed. Z300. If still fails, Is voltage level ~ change UPP 1.8V? When keypad is pressed, are the LED's turned on? Illumination fault Continue © 2003 Nokia Corporation. Issue 1 10/2003 Page 69...
  • Page 70 J403 when key is from X307. If OK, pressed. change Z300. If still Is voltage level ~ fails, change UPP 1.8V? When keypad is pressed, are the LED's turned on? Illumination fault © 2003 Nokia Corporation. Page 70 Issue 1 10/2003...
  • Page 71 Is it OK? Measure Voltage of LED+ Check V303, V329, R307, and LED+ = ~3.2V when LED R305. driver (V303) is enabled. If not OK, change defect part Is it OK? Retest © 2003 Nokia Corporation. Issue 1 10/2003 Page 71...
  • Page 72 N301 Measure ~2.78V in Check R311 N301 pin 1. and VFlash1 Pin 3 should be down when magnet Change is not above the component. N301 ~1.8V when magnet is above Retest © 2003 Nokia Corporation. Page 72 Issue 1 10/2003...

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