Nokia RH-47 Series Description

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Rf description and troubleshooting (76 pages)

Disassembly & assembly instructions (22 pages)

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Nokia Customer Care

RH-47 Series Cellular Phones

6 - Baseband Description and

Troubleshooting

Issue 1 05/04

Page 1

Company Confidential

Table of Contents

Troubleshooting

Summary of Contents for Nokia RH-47 Series

Page 2 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care [This page intentionally blank] Page 2 Copyright© 2004 Nokia Corporation Issue 1 05/04 Company Confidential...
Page 3: Table Of Contents
General guidelines for RH-47 troubleshooting ................19 Tools needed for troubleshooting ....................19 General guidelines .......................... 19 Nominal current consumption ......................20 Troubleshooting Paths......................... 21 Dead or jammed device ........................21 Partially damaged device .........................22 Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 3 Company Confidential...
Page 4 Keymat backlight ..........................56 Keyboard problem ..........................58 Display blank ............................59 Backlight does not turn on ......................60 Appendix A ............................. 62 Test points - Bottom ..........................62 Test points - Top ..........................62 Copyright © 2004 Nokia Corporation Page 4 Issue 1 05/04 Company Confidential...
Page 5: List Of Abbreviations
HFCM Handsfree Common Handset Input/Output Integrated hands free Liquid Crystal Display Local Oscillator Micro Controller Unit MIC, mic Microphone Power Amplifier GSM1900 Pocket Data Application Phase Locked Loop Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 5 Company Confidential...
Page 6 Synchronous Dynamic Random Access Memory Subscriber Identity Module Transmitter Universal Energy Management User Interface Voltage controlled oscillator Very High Frequency VCXO Voltage Controlled Crystal Oscillator Video Graphics Array Copyright © 2004 Nokia Corporation Page 6 Issue 1 05/04 Company Confidential...
Page 7: 1Ck System Module Block Diagram
1CK border. Figure 1: 1CK module block diagram The accessory interface is provided by Bluetooth. Only the headset & charger are gal- vanic interfaces. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 7 Company Confidential...
Page 8: Baseband Technical Summary
The MALT speaker is driven by a discrete audio amplifier. For data connectivity, there is Bluetooth and an MMC card. The display is a GD82C type colour display with 66000 Colours and 176x208 pixels with backlighting. Copyright © 2004 Nokia Corporation Page 8 Issue 1 05/04 Company Confidential...
Page 9: Functional Description
(below UEM master reset threshold) and back-up battery voltage is too low. • In BACK_UP mode, the main battery is not present or its voltage is too low but Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 9...
Page 10: Voltage Limits
A 26 MHz VCXO is used as system clock generator in GSM. During the system start-up, UEM RC-oscillators generate timing for state machines. All clock signals of the engine are illustrated in following figure. Bluetooth uses a 26 MHz clock. Copyright © 2004 Nokia Corporation Page 10 Issue 1 05/04 Company Confidential...
Page 11: Upp_Wd2 Voltage/Clock Frequency Adjusting
UEM enters the PWR_ON mode and system reset PURX is released. During system start-up, in the RESET state, the regulators are enabled, and each regula- Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 11...
Page 12: Powering Off
UEM digital part takes care of charger detection (generates interrupt to UPP_WD2), pulse width modulated charging control (for internal charge switch) and over voltage and current detection. SW using registers controls all these. Copyright © 2004 Nokia Corporation Page 12 Issue 1 05/04...
Page 13: Chargers
PWB track and is on an internal layer of the PWB. The nominal value of the sense resistor is 3.3 mohm. ZOCUS reports the current measurement to UPP_WD2 via the Cbus interface. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 13...
Page 14: Rh-47 Bb Features & Hw Interfaces
The SIM interface is located in two chips (UPP_WD2 and UEM). In UEM, there is only support for one SIM card. The interfaces support both 1.8 V and 3 V SIM cards. Adjust- able SIM regulator (1.8V/3.0V) is located in the UEM. Copyright © 2004 Nokia Corporation Page 14 Issue 1 05/04...
Page 15: Mmc Interface
RH-47 audio concept RH-47 audio includes earpiece, microphone, and headset connector and MALT speaker. Audio is based on ASIC's UPP_WD2, UEM and a discrete amplifier for the handsfree speaker. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 15 Company Confidential...
Page 16: Earpiece
Two inputs are used from the UEM: one for the normal internal microphone and a second for the headset. The third microphone input is not used, so it is connected to ground via Copyright © 2004 Nokia Corporation Page 16...
Page 17: Audio Amplifier And Malt Speaker
The plug opens a mechanical switch inside the connector between HF and HeadInt lines. The HeadInt line is pulled up to 2.7V by internal resistor when the switch is open. When Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 17...
Page 18: Flashing
*Note: VFlash1 is 2.78 +/- 3% Electrical Specifications for power supply interface in product testing Name Unit Notes VBAT 2.78 VFlash1 Internal pullup Note: VAna & VFlash1 = 2.78 +/-3% Copyright © 2004 Nokia Corporation Page 18 Issue 1 05/04 Company Confidential...
Page 19: Extreme Voltages
Relative humidity range is 5 … 95%. Condensed or dripping water may cause intermit- tent malfunctions. Protection against dripping water have to be implemented in (enclo- sure) mechanics. Continuous dampness causes permanent damage to the module. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 19...
Page 20: Introduction To Rh-47 Baseband Troubleshooting
If the fault is not obvious and Phoenix connection is OK, flash the phone before disas- sembling. Disassemble phone: try to locate failed module. When located, check the failed module visually: Copyright © 2004 Nokia Corporation Page 20 Issue 1 05/04 Company Confidential...
Page 21: Nominal Current Consumption
Measurements have been made with a current probe connected to an oscilloscope. Operating mode Current consumption Idle 4.5-5mA Local 50-55mA Normal (display and keyb.LEDs on) 100-130mA 2W audio call 290mA Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 21 Company Confidential...
Page 22: Troubleshooting Paths
RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Troubleshooting Paths Dead or jammed device Copyright © 2004 Nokia Corporation Page 22 Issue 1 05/04 Company Confidential...
Page 23: Partially Damaged Device
“UI-module keypad is not working” ”Rocker is not working” ”Backlight is dim” ”Backlight not even” ”Backlight is blinking” ”Keypad or display backlight is not working” ”Display related problems” See UI module troubleshooting. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 23 Company Confidential...
Page 24: Most Common Rf Related Symptoms
Exchanged Component IMEI re-writing EM calibration RF tuning D190 - UEM D311 - Flash 1 D312 - Flash 2 D310 - SDRAM D100 - UPP N430 - BT MCM Copyright © 2004 Nokia Corporation Page 24 Issue 1 05/04 Company Confidential...
Page 25: Test Points
J472 SIMCLK (EMIF) J201 RXQD J473 SIMRST (EMIF) J202 TXID J474 SIMDATA (SIM reader) J203 TXQD J475 SIMCLK (SIM reader) Note! For test point locations, see Appendix A. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 25 Company Confidential...
Page 26: Contact Service" On Display
PC connected. These test and items included are as follows: If some of the self-tests failed, see relevant chapter in this troubleshooting document. Copyright © 2004 Nokia Corporation Page 26 Issue 1 05/04...
Page 27: 1Ck Baseband Hw Subarea Troubleshooting
C381, R193, C231, C232, R200 line low after the programming startup Is it ok? Change Measure FBUSTX line during flash programming is it 1.8V? Memory faults page Change UPP Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 27 Company Confidential...
Page 29: Energy Management Troubleshooting
UEM D190 (pin number C2) If phone boots to TEST or LOCAL mode with normal battery, BSI is short circuited to ground. Check EMI-filter and filtering capacitors, which are located in the BSI. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 29...
Page 30: General Power Checking
7 - Baseband Description & Troubleshooting Nokia Customer Care General power checking Use service tool SF-20. Battery voltage should be at least 3.6V. After phone disassembly, use module jig MJ-21. Copyright © 2004 Nokia Corporation Page 30 Issue 1 05/04 Company Confidential...
Page 31 6 - Baseband Description and Troubleshooting Vcorea dead Voltages at C262, C263 Retest and L260 (both sides), Change L260, OK? Retest Check voltage at J260, Change N260 and retest Change L261 and retest Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 31 Company Confidential...
Page 32: Power Key Troubleshooting
VCXO. This 26 MHz triangle wave clock signal is supplied to OSC_IN pin of Mjoelner and out to UPPWD2. Inside UPPWD2 the clock frequency is divided into 13 MHz Copyright © 2004 Nokia Corporation Page 32 Issue 1 05/04...
Page 33 B190. If OK, measure sleepclk from PIN 26 BT module. Frequency should be the same 32.678kHz (see Figure 6, “Sleep clock,” on page 34 below.) If not, change UEM. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 33...
Page 34 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 6: Sleep clock Figure 7: RFClk Copyright © 2004 Nokia Corporation Page 34 Issue 1 05/04 Company Confidential...
Page 35: Charging Checking
Remove and reconnect battery and charger a few times before you start to measure the device. This check ensures that the fault really exists (refer to “Charging troubleshoot- ing”). Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 35 Company Confidential...
Page 36 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 8: Charging troubleshooting Check BL-6C, Btemp, BSI, X382, R381, R390, R200 Copyright © 2004 Nokia Corporation Page 36 Issue 1 05/04 Company Confidential...
Page 37 Nothing happens when ACP-8 is connected Measure Vchar Check F380, L380, at V380. Is it V380, C382, C389 >3.0Vdc? Check R190, is it OK? Replace R190 and retest Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 37 Company Confidential...
Page 38: Energy Management Calibration
Inspect the BSI line and components (R381, R200, pull-up resistor R193). If these are OK, change UEM. BSI Gain over limits: Inspect the BSI line and components (R381, R200, pull-up resistor R193). If these are OK, change UEM. Copyright © 2004 Nokia Corporation Page 38 Issue 1 05/04 Company Confidential...
Page 39: Adc-Reading
A symptom of a backup battery fault is that the real time clock loses the correct time during short main battery removal. The same symptom can also be seen when the backup battery is empty. About 5 hours is Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 39...
Page 40 Measure voltage of backup battery during charging. It should arise, if it is not 3.2V, yet. When the voltage is over 2.0V for sure, check backup battery with Phoenix. -> If not OK, then D190 is faulty. Ensure that the RTC is running. Copyright © 2004 Nokia Corporation Page 40 Issue 1 05/04 Company Confidential...
Page 41: Sim Card
The clock supplied to the card is in GSM system 1.083 MHz or 3.25 MHz. The data baudrate is SIM card clock frequency divided by 372 (by default), 64, 32 or 16. Copyright © 2004 Nokia Corporation Issue 1 05/04...
Page 42 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 9: SIM power-up sequence Figure 10: SIM Clk 3.25MHz. Remember to check the two Phoenix test cases before changing UPP! Copyright © 2004 Nokia Corporation Page 42 Issue 1 05/04 Company Confidential...
Page 43 Are the signals present? present? Change SIM ASIP, R470 Analyse signals & look for errors in rise / fall times due Problem solved? to wrong fitted / faulty passives Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 43 Company Confidential...
Page 44: Audio Troubleshooting
RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Audio troubleshooting Figure 11: Internal earpiece Copyright © 2004 Nokia Corporation Page 44 Issue 1 05/04 Company Confidential...
Page 45 Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Figure 12: Internal MIC Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 45 Company Confidential...
Page 46 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 13: External earpiece Copyright © 2004 Nokia Corporation Page 46 Issue 1 05/04 Company Confidential...
Page 47 Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Figure 14: External MIC Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 47 Company Confidential...
Page 48 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 15: Internal MALT speaker Copyright © 2004 Nokia Corporation Page 48 Issue 1 05/04 Company Confidential...
Page 49 Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Figure 16: Internal MALT speaker (2) Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 49 Company Confidential...
Page 50 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Figure 17: Accessory detection Copyright © 2004 Nokia Corporation Page 50 Issue 1 05/04 Company Confidential...
Page 51: Memory Troubleshooting
ST_UEM_CBUS_IF_TEST to test UEM Cbus interface ST_LPRF_IF_TEST to test Bluetooth Cbus interface If an error is found testing any of the above components, you should replace the failing component. Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 51 Company Confidential...
Page 52: Fbus
UPP WD2 end it is 1.8V. MBUS traffic between UPP WD2 and UEM can be tested with Phoenix (ST_MBUS_RX_TX_LOOP_TEST). Flashing is not possible, if there is a problem in MBUS. Copyright © 2004 Nokia Corporation Page 52 Issue 1 05/04...
Page 53: Bluetooth Troubleshooting
52, 53, 54 Check BER Is Vcc OK? Check VBAT L431 BT OK Is ripple <= 400 Check VBAT 431 mVpp Check VREG pin 6 Is VREG OK? Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 53 Company Confidential...
Page 54: Mmc Troubleshooting
RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care MMC troubleshooting Copyright © 2004 Nokia Corporation Page 54 Issue 1 05/04 Company Confidential...
Page 55: Vibra
• It is noisy. • it is continuously on. Noisiness is usually caused by the contact of the rotating mass with surrounding mechanics. that C146 is Check C145, C146, C147 Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 55 Company Confidential...
Page 56: Zocus
RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care ZOCUS Check N380 Copyright © 2004 Nokia Corporation Page 56 Issue 1 05/04 Company Confidential...
Page 57: Ui Module Troubleshooting
If the keymat backlight is not functioning and the backlight driver voltage is generated correctly on the 1CK module, then the problem is either in the connector or in the UI Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 57...
Page 58 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care module. Note that it is possible that one LED is dead while all others are working. Copyright © 2004 Nokia Corporation Page 58 Issue 1 05/04 Company Confidential...
Page 59: Keyboard Problem
Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Keyboard problem If the keyboard does not work, follow the troubleshooting chart below: Change UPPWD2 Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 59 Company Confidential...
Page 60: Display Blank
RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care Display blank Copyright © 2004 Nokia Corporation Page 60 Issue 1 05/04 Company Confidential...
Page 61: Backlight Does Not Turn On
Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Backlight does not turn on Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 61 Company Confidential...
Page 63: Test Points - Bottom
Company Confidential RH-47 Nokia Customer Care 6 - Baseband Description and Troubleshooting Appendix A Test points - Bottom Test points - Top Copyright © 2004 Nokia Corporation Issue 1 05/04 Page 63 Company Confidential...
Page 64 RH-47 Company Confidential 7 - Baseband Description & Troubleshooting Nokia Customer Care [This page intentionally blank] Page 64 Copyright© 2004 Nokia Corporation Issue 1 05/04 Company Confidential...

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