6a - Baseband Troubleshooting
Contents
1. http www edatop com peixun rfe 129 html Api Balt ane Y 30 3 http www ed atop com peixun rfe 1 10 html ADS ADS 10 ADS ADS2. CST 3 http www edatop com peixun cst 24 html HFSS 6 1 HFSS HFSS HFSS http www edatop com peixun hfss 122 html 13 56MHz NFC RFID 4 13 56MHz 13 56MHz HFSS CST 13 56MH
3. ADS ADS ADS ADS http www edatop com peixun ads 13 html HFSS http www ed HFSS HFSS HFSS 3 HESS atop com peixun hfss 11 html i Sigh http www edatop com CST EDA CST
4. Tek Single Seq SE Li h4 Zoom 0 05X vert 0 02X Hora A 2 899kH2 i S 51 28kHz 4 A s lt s lt C1 Fre 4 8 i 12 658239 kH2 Low signal Ti amplitude Ms 0gus Ch2 7 1 04 21 pec 2001 15 53 54 If however you are able to get the phone to boot up and can reach Phoenix BB self tests it is possible to test the functionality of each component attached to Cbus Use Page 28 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting FBUS MBUS Issue 1 ST_ZOCUS_CBUS_IF_TEST to test AEM Cbus interface 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 FBUS is a two wire RX and TX interface between UPP and flash test interface The bus goes through UEM which adjusts the voltage levels to suit UPP_WD2 The interface volt age level on the phone flash test pad pattern is 2 78V and on the UPP WD2 end it is 1 8V The functionality of this interface should not affect the device boot into NORMAL LOCAL nor TEST modes Phoenix tests can be performed through MBUS interface in the case of a failure in FBUS interface Flashing is not possible if there is a problem in FBUS
5. No Y ARP Replace connector X381 Y Connector fault Retest es gt Does the button work now after replacement A No Y Place phone to MJ21 and set it to local mode Use Phoenix audio test to set MIC2 Ear and LOOPBackAna on Measure voltage level from R334 Is it 2 1V Check R337 R349 N No and lines If OK AN change UEM Yes Press HOOKINT button in MJ21 Check R334 X No and lines If OK change UEM Measure voltage level from R334 Is it 1 0V Yes Y Retest phone Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential ERIT UI io http www edatop com www edatop com BLAIR EF tt 2006 EDA www mweda com ADS HFSS
6. Measure points SIM connector Page 24 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Figure 5 SIM Clk 3 25MHz SIM Clk 3 25MHz CH1 SIM CLK Measure points SIM connector Remember to check the two PHOENIX test cases before changing UPP Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 25 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Insert SIM Card in device display although card is inserted START Perform BB SIM self tests Are they OK Perform SIM BB self tests Are they OK Replace UEM Replace UPP_WD2 Yes Yes Perform Phoenix SIM tests Are they OK Check amp clean connector contacts amp pads Replace connector No Check SIM connector Is it OK Measure VSIM s it 1 8 3 0V when SIM jnterface is powered Check amp clean battery centre contact Verify BSI signal has a steady voltage Measure VSIM resistance to GND Is it low Is the SIM Detection Reliable Change UEM Yes Change VSIM Check C470 Is it OK decoupler C470 Y
7. flash1 D312 is partially totally damaged During flashing the manu facturer device and revision id s are read but flashing is done based on id s of the flashO D311 This means that one cannot see any error messages displayed on Phoenix window during flashing if flash1 is fail ing Id s are however displayed on the Phoenix window and successful read of flash1 id s can be checked from there Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 27 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Serial interface troubleshooting CBUS CBUS is a three wire serial interface between the main baseband components The bus consists of data clock and bus_enable signals In RH 29 the bus is connected from UPP WD2 to ZOCUS UEM and LPRF UPP_WD2 takes care of controlling the traffic on the bus If the interface is faulty from the UPP WD2 s end the phone won t boot properly as pow ering configurations don t work Traffic on the bus can be monitored from three pins on the LPRF module Pins 34 35 and 36 In the pictures below CBUS traffic at boot up is shown CbusEnx is connected to Ch1 Cbus Da to Ch2 and CbusCIk to Ch3 dg 2 s v P o fex i Ww CBUS_EN CBUS_DATA CBUS_CLK
8. Short circuit these lines filtering components etc battl 3 Vbatbb Failure on bat line Vbattihf meas from Check components C300 C301 amp C302 and connectors in Vbatt lines Check BSl Btemp if OK gt UEM regulators are not working change UEM Yes Go to clocks trouble shooting Check Vcorea and Vmema voltages OK No See next page Check sleep Meas from C200 OK Change D190 MNo UEM 32 768Khz No Go to clocks trouble shooting Check B190 C199 C200 Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 13 Company Confidential RH 29 Company Confidential 6b Baseband Troubleshooting Page 14 Vcorea dead Voltages at C262 C263 and L260 both sides OK Change L260 OK Change N260 and Retest Copyright 2004 Nokia Corporation Company Confidential NOKIA Nokia Customer Care Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Power key troubleshooting Phone cannot be powered by pressing pwr key Connect charger phone is powered up p Change power key and retest Clocks troubleshooting Clocks include the following RF clock DBUS CBUS clocks Flash and SDRAM clocks Sleep clock Bluetooth clock SIM clock MMC clock See dead device troubleshooting
9. The main clock signal for the baseband is generated from the voltage controlled crystal oscillator 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 to 13 MHz Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 15 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care and then fed to RFCLK WEGE UPP WD2 UEM SleepClk 32 MHz VCXO 26 MHz CBusCIKIMHZ L a I Zz sme RF ASIC lt iech SCH Mjoelner z SIM LPRFCIk analog 26 MHZ y Zocus p 13 MHz FlashClk SDRAM Max40MHz Max 104 MHz v MMC BT Flash SDRAM module memories In SLEEP mode the VCXO is off UEM generates low frequency clock signal 32 768 kHz that is fed to UPP_WD2 Bluetooth and ZOCUS When the flashing of the device does not succeed but powering is OK follow these instructions Note The absence of clocks may indicate that the device put phone to LOCAL mode when the sleep is not allowed or press buttons so that phone is not in sleep mode is in sleep mode Make sure that the device is not in sleep during clocks measuring IMPORTANT Clock signals have to be measured with 1MQ or greater probes Measure signal from J170 This should be 26Mhz clock signal See RF Trouble
10. 6b Baseband Troubleshooting Nokia Customer Care Figure 2 Charging troubleshooting Not charging on display Connect NMP approved charger and retest MMP approved charger Charging OK calibration with Phoenix and JBY 1 harging works Yes see EM calibration No No ead D i i Vbatt char and Charging OK Ichar by Phoenix see ADC reading chapter Yes Disassemble Check BL6 C Btemp BSI Retest phone X382 R381 R390 Flash phone and make EM calibration Charging OK No Charging works No Change D190 UEM Page 18 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Perform EM calibration and verify it by ADC uu reading see EM when ACP 12 libration and ADC cane is connected reading chapters Disassemble No d harging OK phone Measure Vchar at V380 Is it 23 0Vdc Charging OK No Check F380 L380 V380 C382 C389 Yes Check R 190 Measure is charging is it OK current flowing Ye Replace R190 and retest Change UEM and retest Charging works Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 19 Company Confidential NOKIA Nokia Customer Care RH 29 Company Confidential 6b Baseband Troubleshooting Energy management calibration During en
11. Backup battery is charged only the same time with main battery charging Or when the device is LOCAL or TEST mode Always check the backup battery visually for any leakage or any other visual defect Check that the backup battery is correctly mounted in the device before closing the cover Check with Phoenix that backup battery is OK Measure the voltage of backup battery Normal operation when the voltage is gt 2 0V Fully charged when the voltage is about 3 2V because of large internal impedance voltage won t stay above 3 0V a long time after charging is Page 22 Copyright 2004 Nokia Corporation disabled Enable backup battery charging start to charge main battery or boot device to LOCAL or TEST mode 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 f not OK then D190 is faulty Ensure that the RTC is running Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting SIM card The whole SIM interface locates in two chips UPP_WD2 and UEM UEM contains the SIM interface logic level shifting UPP provides SIMCIk through UEM to the SIM SIM inter face supports both 3 V and 1 8 V SIMs UPP amp UEM SIM connections Si SIMIO SIMCIk Data VSIM U EM SIMIF register UIF Block UEMInt BSI li
12. MBUS is a two wire RX and TX interface between UPP and UEM From UEM the interface continues to flash test interface as a one wire interface UEM also adjusts the voltage levels The interface voltage level on the phone flash test pad pattern is 2 78V and on the 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 05 2004 Copyright 2004 Nokia Corporation Page 29 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care MMC troubleshooting Save Photo to known working MMC No MMC failure Does save succeed No Physical MMC failure reflash software Phoenix MMC test Use CRO to examine Clk and CMD signals at points MMC connector Are signals Yes present Replace R473 J490 J495 Are signals Yes present Replace N470 J490 J495 No Replace UPP_WD2 End Page 30 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential Are signals present Replace R473 Is connector damaaed Are signals correct No MMC fault found E No Physical MMC failure reflash software Replace R473 No Replace N470 d NOKIA Company Confidential RH 29 6b Baseband Troubleshooting Nokia Customer Care Vibra There may be three kinds
13. Yes Still dead Phoenix OK No Yes Go to general Connector OK Check UI power checking connector If the powers and clocks were OK go to serial interface trouble shooting Replace UI module Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 5 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Partially damaged device If the device is working but some functionality is missing try to localize where the prob lems is and see relevant part of this manual E g audio is not working see Audio Trouble shooting if charging is not working see chapter Charging troubleshooting etc Most common symptoms reported by customer In this chapter is described most common symptoms reported by customers when the device is brought in for service Some tips where the trouble can be found are given also When troubleshooting use these tips and follow the given troubleshooting path Most common symptoms for audio problems Earpiece sound is missing Handsfree sound is missing Headset is not recognized Microphone is not working Volume cannot be adjusted Ringing tones does not work Audio volume too low If symptom is something like above see audio troubleshooting Symptoms related to energy management Phone does not stay on Charging is not working Time is lost during battery change Charging takes too long Operating time is very short Thes
14. and set it to local mode Use Phoenix audio test to set MIC2 Amp1 0dB MicGainCtrl 0aB HF HFCM GainCtrl 6dB and LOOPBackAna on No gt Measure DC offset from R386 R389 L382 HF and HFCM Is it 810mV Yes Y Connect external audio cad 1kHz sine 200mV to MIC2P and gnd to o IC2N Measure differential signal over R336 Is it Np Yes Y Measure differential signal over HF and HFCM Is it 180mV Yes Y hange UPP and retest ui C NS J Accessory faults 4 Issue 1 05 2004 Copyright 2004 Nokia Corporation Company Confidential Yes gt RH 29 6b Baseband Troubleshooting Accessory fault S Measure MICB2 from MIC2P Check Lei R349 I NO and lines If OK Is it 2 1V h UEM change t Yes Y Check R386 R389 No L382 and lines If OK change UEM D Check L381 R335 No C337 and lines If OK verify audio signal connection ES No Change UEM and retest M Ei Page 43 RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Accessory faults 4 Is accessory button working End Page 44 Replace accessory Does the No button work now Yes Accessory fault
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16. ena oe eit 27 il co eeg 27 RU 28 US 28 MMC troubleshooting se ee ee 29 cg E e e rE TSE TPR 30 ZEUS E AE 31 UI Module Troubleshooting ee 32 Keymat backlight se em ea E eE eee 32 Me 33 Display e E 34 Image on display NOt correct ee 35 Backlight does hot UUM ON ee EE 36 mE Te ele 37 Accessory PUN EE 40 Page 2 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Introduction to RH 29 Troubleshooting This document is intend to be a guide for localizing and repairing electrical faults in the RH 29 device First there is a brief guide for fault localizing Then fault repairing is divided into troubleshooting paths Before any service operation you must be familiar with the RH 29 product and module level architecture You have to also be familiar with the RH 29 specified service tools such as the Phoenix service software flashing tools and software General guidelines for RH 29 troubleshooting Tools needed for troubleshooting Service tools as listed at service tools chapter in service manual Laboratory power supply with current indicator e Oscilloscope Digital multimeter General guidelines If the device cannot be turned on by any means see dead device troubleshooting Current consumption missing consumption gives an idea wh
17. of problems with the vibra it does not rotate It is noisy it is continuously on Noisiness is usually caused by the contact of the rotating mass with surrounding mechanics Vibra doesn t rotate Vibra is oe Check the surrounding mechanics of the Vibra Is the Vibra jammed or its contact pads Yes No Is it Vibra component itself that makes noise Yes Measure that C146 is No pulsed down to zero Change UEM while Vibra is switched on Check C145 C146 C147 Change the Vibra No Copyright 2004 Nokia Corporation Page 31 Issue 1 05 2004 Company Confidential RH 29 6b Baseband Troubleshooting ZOCUS Page 32 Company Confidential Read phone current consumption in Phoenix SW Error Reflash Check N380 and other components Replace damaged components and retest Replace component Copyright 2004 Nokia Corporation Company Confidential NOKIA Nokia Customer Care Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Ul Module Troubleshooting This document describes the troubleshooting of the Ul module If the problem is in the display or in the keymat PWB the entire Ul module must be replaced However the earpiece may be replaced see audio troubleshooting Keymat backlight If the keymat backlight is not functioning and the backlight driver voltage is generated correctly on
18. the 1CK module then the problem is either in the connector or the UI mod ule Note that it is possible that one LED is dead while all others are working Backlight malfunction Check and measure that R610 is on its Change resistors place no and retest yes Check LEDs that they are properly assembled anode cathode OK no Reassemble them and retest Y Measure from VKEYB that voltage is Vbat Reeg when the keyboard backlight is turned on OK Change V165 toa new one and retest Backlight works Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 33 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Keyboard problem If the keyboard does not work follow the troubleshooting chart below Keyboard malfunction One or more keys don t work s there dirt under the keydome or keypads Clear pads change the keymat and retest Check Board to board connector that its properly assembled OK Change connector Change UPPWD2 Page 34 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Display blank Display blank Display ok Check and change V132 and Z130 Display OK Change UPPWD2 Issue 1 05 2004 Copyright 2004 Nokia Corporati
19. y Connect external audio signal 1kHz sine 200mVp p to MIC2P and gnd to MIC2N Measure signal from earpiece pads Is it 180mV No Y Measure differential signal over R336 UEM Is it 190mV p No Y Y Check L381 R335 0337 and lines Audio faults 2 Page 38 Company Confidential Nos r Yes Change UPP and retest Yes Change UEM and retest Copyright 2004 Nokia Corporation Check R341 X130 V and lines If OK change UEM E Check L381 R337 R349 and lines If OK change UEM Nos A bw A MN Issue 1 05 2004 NOKIA Nokia Customer Care Audio faults 2 Is microphone working Company Confidential RH 29 6b Baseband Troubleshooting Yes Retest microphone EM Replace microphone with new one Does the microphone work now No Y No gt Place phone to MJ21 and set it to local mode Use Phoenix audio test to set MIC1 MicGainCtrl 0dB EAR GainCtrl 26dB and LOOPBACKANA on Check R339 R350 gt Measure MICB1 from MICP No_ R340 and lines Is it 2 0V If OK change UEM Yes Y Connect external audio signal 1kHz sine 200mV d to MICP and C gnd to MICN Yes gt Measure differential signal over R3
20. 4 SIMIOCTRL J392 Current sense J493 MMC IF resistor J195 MBUSTX J393 Current sense J495 MMC IF resistor J196 MBUSRX J470 SIM IF J496 MMC IF J197 FBUSTXI J471 SIM IF J497 MMC IF J198 FBUSRXI J472 SIM IF J498 MMC IF J199 RFCONVCLK J473 SIM IF J499 MMC IF J200 RXID J474 SIM IF J201 RXQD J475 SIM IF J202 TXID J476 SIM IF Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 7 Company Confidential NOKIA Nokia Customer Care RH 29 Company Confidential 6b Baseband Troubleshooting CONTACT SERVICE on display CONTACT SERVICE on display Self tests by Phoenix Display information Contact Service This fault means that software is able to run and thus the watchdog of UEM can be served Self test functions are executed when the phone is powered on and if one or more self test functions fail the message Contact Service is shown on the display MCU self test cases can be split into two categories The ones that are executed during power up and the ones that are executed only with a PC connected These test and the items included are as follows WE Tesiems sf Result Der au DA LODP TEST Der CURRENT CONS TEST Der EAR DATA LOOP TEST Der KEYBOARD STUCK TEST Der MBUS RX TX LOOP TEST Der ew CLK LOOP TEST Der ew ID CTRL LOOP TEST Dor SLEEP X LOOP TEST 157 Tripp LOOP TEST 157 TX lg DP LOOP TEST Dor UPP REGISTER VER TEST Der BACKUP BATT TEST Der LPRF IF TEST Der EXTERNAL RAM TEST 157
21. 40 f Check R338 C344 I No R340 and lines Is it 170mV 3 pp SU OK change UEM g Yes y Measure differential signal Check R341 X1 30 from earpiece pads ELO and lines it Is it 235m If OK change UEM Yes Y Change UPP and retest oe J Y Audio faults 3 Issue 1 05 2004 Copyright 2004 Nokia Corporation Company Confidential Page 39 RH 29 Company Confidential 6b Baseband Troubleshooting Audio faults 3 Is MALT working Check IHF lid pogo pins Yes Pins stuck No Does MALT work NOKIA Nokia Customer Care Replace IHF lid No Y Replace MALT Does the MALT work now No No Y a AN Yes Retest phone W Place phone to MJ21 and set it to local mode Phoenix audio test to set MIC2 g1 amp g2 HF HFCM g and LOOPBACKANA on Use END Page 40 Measure DC offset from C331 C332 R386 and R389 Is it 800mV No Check lines OK change UEM and retest Yes Y Use Phoenix audio test to activate Boomer IHF Connect external audio signal 1kHz sine 200mVp p to MIC2P and gnd to MIC2N Measure differential signal from AudioP and AudioN pads in MJ21 Is it 450mV p T No y Measure J334 voltage NES Retest shone No Change UPP Is
22. Nokia Customer Care RH 29 Series Cellular Phones 6a Baseband Troubleshooting Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 1 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Table of Contents Page No Introduction to RH 29 Troubleshooting ee 3 General guidelines for RH 29 troubleshooting ee 3 Tools needed for troubleshooting es 3 TEE 3 Nominal current consumption tt 4 Troubleshooting Pat IS ee reel p dE p bur aid ice lei dietus 5 Dead or jammed ENEE 5 ENEE RT 6 Most common symptoms reported by CUStg mer ee 6 Most common symptoms for audio problems es 6 Symptoms related to energy management ee 6 Problems related to WN Mun m 6 Most common RF related symptoms se 6 ASIC USA RIN RE 7 VEM ehanged sa ee 7 UPP WDZ CHAT EE 7 SEENEN 7 Test pOMtS ee Do ot 7 CONTACT SERVICE EISE EE 8 1CK Baseband HW Subarea Troubleshooting tette ret nieces ertet 9 Flashing troubleshooting ceased ret c icc i cR LE De Ead 9 Energy management troubleshooting euni reo ettet ettet teet ameti ette tetas 11 Devicedoes not gt 1g ge C HR 11 General power checking EE 12 Power key troubleshooting ee 14 Clocks 000 e e 0 14 Erres 16 Energy management calibration suu tei ec cu epo co cai ane 19 eg dco m es a sn en 20 SEET 21 cup der 22 Memory troubleshooting ee 26 Serial interface troubleshooting sicui ested etch deat ede ennt
23. RF CHIP ID TEST Dor unter 157 LPRF AUDIO LINES TEST Dar UEM CBUS IF TEST Der VIBRA TEST Not executed 3 Not executed 3 Passed 0 Not executed 3 Passed 0 Passed 0 Passed 0 Not executed 3 Passed 0 Not executed 3 Passed 0 Passed 0 Not executed 3 Not executed 3 Not executed 3 Not executed 3 Not executed 3 Passed 0 Not executed 3 If some self test failed see relevant chapter in this troubleshooting document Page 8 Copyright 2004 Nokia Corporation Company Confidential Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting 1CK Baseband HW Subarea Troubleshooting Flashing troubleshooting RH 29 has three memory components installed on the main PWB The best indication of which one is causing problems can be obtained by flashing the device It has to be kept in mind that all three flashes are interfaced with UPP WD2 asic that might it self have some problems The necessary steps are described below Phoenix error messages during flashing greatly help on defining what is wrong To be able to flash the device most device BB area components must function properly Flashing faults Check connections Check BB voltages Check clocks Change UEM he phone doe not set Flashbus TXD line high after startup Tre phone doe Measure BSI Check BSI line not set the pulse during
24. Replace accessory earpiece Does the earpiece work now working T No vy No mode Use Phoenix audio test to set MIC2 Amp1 0dB MicGainCtrl 0dB HF HFCM GainCtrl 6dB and LOOPBackAna on Measure DC offset from R386 R389 L382 HF and HFCM Is it 810mV T Yes Y Measure MICB2 from MIC2P Is it 2 1V Yes Y Connect external audio signal 1kHz sine 200mVp p to MIC2P and gnd to MIC2N Measure differential signal over R336 Is it 190mV 3 pp Yes Y Yes Place phone to MJ21 and set it to local No Is it 180mV p Measure differential signal from HF and HFCM T Yes Y Y l ohanse UPP and m X A Accessory faults 3 Page 42 Company Confidential Copyright 2004 Nokia Corporation NOKIA Nokia Customer Care Accessory fault Check R386 R389 No L382 and lines If OK NC change UEM F Check L381 R337 R349 and lines If OK change UEM Check L381 R335 _ No C337 and lines If OK verify audio signal connection MNA I No Change UEM and retest Issue 1 05 2004 NOKIA Nokia Customer Care Company Confidential Accessory faults 3 Is accessory microphone working Replace accessory Does the microphone work now No Y Place phone to MJ21
25. e symptoms lead to relevant part of energy management troubleshooting Problems related to UI module Ul module keypad is not working Backlight is dim Backlight not even Backlight is blinking Keypad or display backlight is not working Display related problems See Ul module troubleshooting Most common RF related symptoms Call cannot be made Phone does not find signal Call is often dropped See RF troubleshooting Page 6 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential Nokia Customer Care ASIC is changed ASIC s can be changed only at a defined service level UEM changed If UEM is changed baseband calibrations should be made New IMEI must be pro grammed also ZOCUS calibration is not necessary UPP_WD2 changed IMEI must be reprogrammed ZOCUS changed Zocus must be re calibrated Test points RH 29 6b Baseband Troubleshooting Test Point Signal Test Point Signal Test Point Signal J109 UEMInt J203 TXQD J477 SIM IF J123 SLEEPCLK J204 AUXD J482 MMC IF J124 SLEEPX J311 FLASH CE J483 MMC IF J125 PURX J312 FLASH CE J484 MMC IF J170 RFCLK I J314 SDRAMCLK J485 MMC IF J190 EARDATA J315 FLASH CLK J487 MMC IF J191 MICDATA J334 Shutdown J488 MMC IF Audio PA J192 SIMIODAI J390 Current sense J490 MMC IF resistor J193 SIMCLKI J391 Current sense J492 MMC IF resistor J19
26. ergy management calibration A D converter BSI Btemp Battery voltage Charger voltage and Charger current are calibrated 5 Energy Management Calibration M Calibrated Phone Values ici xi ADC Offset mV ADC Gain 27451 2 0 0001 mv bit Calibrate I Battery Size BSI Gain 100 Ohm 1030 E Save To Phone f Battery Temperature BTEMP Gam El Ki Zead From L Offset mw E sell HA v Battery Voltage SCAL Offset mV 2506 SCAL Gai nd p B acidi Change Phone IV Charger Voltage VCHA R Gain Seen Help v Charge Current ICHAR Gain 3313 IV Battery Current IBAT Gain fro e Status Values read from phone Limits for calculated calibration values are as follows Channel Low High ADC Offset 50 50 ADC Gain 26000 29500 BSI Gain 860 1180 Vbatt Offset 2400 2600 Vbatt Gain 10000 11000 Vchar 57000 63000 Ichar 3600 5000 ADC offset over limits Inspect BSI line and components in it R381 Pull up resistor R192 If these are OK change UEM BSI Gain over limits Inspect BSI line and components in it R381 Pull up resistor R192 If these are OK change UEM Vbatt offset and Gain Inspect Vbatt lines and component in it Vchar over limits Page 20 Copyright 2004 Nokia Corporation Company Confidential Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooti
27. es Y Change SIM ASIP R470 Check Clk Check Clk RST amp DATA at SIM connector Are the signals Check SIM Power Up sequencing Is it OK Change UEM Change SIM ASIP R470 Analyse signals amp look for errors in rise fall times due to wrong fitted faulty passives Problem solved END Page 26 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Memory troubleshooting Most memory related errors are found through flashing the device flashing the device is therefore recommended before any of the steps described in this chapter Check flashing troubleshooting section first There are however a few memory related errors that cannot be found through flashing SDRAM D310 partially damaged This can mean that the SDRAM component itself is partially damaged and all the memory locations can not be successfully read or there is a soldering problem somewhere either under UPP or SDRAM There is a BB self test for testing SDRAM component quite thoroughly but the problem is that if SDRAM doesn t function properly one may not be able to run those tests as SDRAM is used during the device boot and self test cannot be run if the device hasn t booted DEVICE may inform about being out of memory more often than it should
28. ether the device is able to start up Dropping supply voltage or very large current consumption indicates a short circuit Check whether the connection with Phoenix works and what can be discovered with Phoenix ADC readings baseband self test BB calibrations etc Check baseband self tests with Phoenix if CONTACT SERVICE is shown on the display Check visually display and rocker faults Force phone to LOCAL mode and make keyboard test by phoenix Check that board to board connector is OK and connectors make good contacts If liquid damage stop repairing Flash the phone before disassembling it if the fault is not obvious and the Phoenix con nection is OK Disassemble phone Try to locate failed module Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 3 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Check failed module visually Mechanical damages Solder joints OK Continue with specific troubleshooting procedure for the module If there is an obvious fault repair it before reflashing the device Flash first if a fault is not obvious If flashing is not working go to flashing troubleshooting Due to CSP packages short circuits or broken solder joints are not easily seen If the examined signal seems to be continuously in low or high level then measure for possible short circuit to ground signal low or to supply voltage signal high Note that i
29. f a prob lem is not found from any visible contact component it can be under CSPs where the sig nal is connected Care must be taken when assembling and disassembling the transceiver Failure to do this may result in unnecessary damage to device Nominal current consumption NOTE Service tools need some amount of current to work The following current consumption values are measured from a complete RH 29 Vbatt 3 6V Measured nominal currents are drawn from the main battery Measurements have been made with a current probe connected to an oscilloscope Operating mode Current consumption Idle 90 mA 2w audio call backlights off 250 mA Page 4 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Troubleshooting Paths Dead or jammed device Phone is dead or jammed Check connectors battery connector etc solder and batt lines If the phone current is zero there must be open circuit Check supply Phone current voltage is zero Disassemble somewhere Go to general power checking possible short circuit Is some component very hat drops or current is large about 1A Short circuit inside or Go to flashing Shoni SZ under the component trouble shooting one Is working change it and retest No Check serial connection with Yes Flash phone Flashing works
30. flashbus TXD Battery connector ge low after the C381 R192 and C231 startup Change UEM Measure FBUSTX line during flash rogramming is No Change UPP WD2 Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 9 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care emor faults page2 Secondar receive fail or Yes Algorithm send Change UPP_WD2 failed essage Change SDRAM No Yes Prommer Voltages message about Activity in SDRAM VmemA and sdram failure Yes Clk path J314 Vio OK No No No Change UPP_WD2 Wrong Yes manufacturer ID and device ID Change Flash Chip according to Phoenix messages No If both chips report wrong ID s gt change UPP_WD2 Yes Check flashO bypass caps check Vpp connection to flasher Check Vpp resistor R310 Ok gt Change flash0 Flash informs about a failure during flashing No Page 10 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential 0040 ZAM dan 0010 ZAM dan sbueuD 96ueyo oO D 061 0 Wan 6ueuyD c al ih Se Se o am o N P K Ki 5 sf P
31. it 1 8V Yes Y Measure VAPA voltage s and retest Check L330 No gt andlines Is it near supply voltage iei retest m Check C331 eck 381 0332 I No R330 R331 and lines NS E Yes Y Measure signal between ud and C332 Is it 240mV Measure signal between hoo and R331 ls it 240mV Yes Y Check R332 R333 K N330 and lines Replace defected and retest Copyright 2004 Nokia Corporation Company Confidential Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care Accessory Audio Start Is accessory Replace connector X381 6b Baseband Troubleshooting aa a Retest phone Y Place phone to MJ21 Set phone to normal mode v detection Does detection work now d working No Y Check contacts of PWB No Solder a replacement Are those OK contact and retest J Seen ee a d Yes Measure HEADINT voltage from L384 and J402 Is it 2 75V Check L384 and line No gt If OK change UEM Yes P Y User may have used unsopported accessory Accessory faults 2 and retest iw M Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 41 Company Confidential RH 29 Company Confidential 6b Baseband Troubleshooting Accessory faults 2 Is accessory
32. jppiuu IM Buiusej A E oN uondo y m Buiysej4 zreq leoldA sabessow Pa Eid ER We da Ki use P welpp uw HS An OLEY ddA Y29492 sdeo N ws xiueoud ol 6ulpjoooe Ba cud ZX esind oN Suoloeuuoo yosdD q 9 ssed q ysey y9949 BN diuo useld eBueyo Ba Ka Seen Ka x S 77 Se Se sms 2 v O Se Se Se se pee Se se c Weu rd se Q x P Se Es Fo Ba ea K ZN ae Oo E kN He E v M P N Pd S o Z A m eee zs P il A oDessoui Cie a since pue al va Sege N PEE MUN S t wenn ye eDesseu pej hs N lu d gt lt a d pi syni S peaAleoeJ asuodsal lt Jeun Buypueu aunjoeynuew 2 5 NS jnoqe aBessow euoud Lgz9 10 m ulle 9448091 gt a oul d loo PX HEIS 100q ZOLO 40 B fee Su S SCH eed S89 NN ON SHOU ON _ fuepuose ON ull Fues og E019 7 oN Suysel Ne auoud 98S9 t ef BuoIM POZY va Sous mA unopiv z0zo E poses i j Ndnoeu 1009 L0L9A S9A V EM Yo N Pa rd Ba N x ES x K ES Lo NU ON bw br d Ed bt a gt Page 11 Copyright 2004 Nokia Corporation Company Confidential Issue 1 05 2004 RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Energy management troubleshooting Device does not stay on If the device is switched off without any visible reason there may be problems in the fol lowing areas UEM watchdog problem WD is not updated by SW BSI line problem BSI line is floating gt contact failure Battery line proble
33. m e Soldering problem The most likely reason is UEM WD watchdog which turns the device off after about 32 seconds if SW is jammed This may caused by SW problem UPP_WD2 problem Not server by SW UEM or memory malfunctions The following tests are recommended General power checking e Clocks Memory testing Serial Interface If there is something wrong in BSI line the device seems to be dead after the power key is pressed However the regulators of the device are on a few seconds before the power down This mode can easily be detected from the current consumption of the device After a few seconds the current consumption drops almost to 0 mA In this case check component or soldering Battery connector X382 EMI filter R381 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 to BSI Page 12 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting General power checking Use service tool SF 20 Battery voltage should be at least 3 6V After phone disassembly use module jig MJ 21 Switch power on Short circuit in Vbatt1 3 Supply voltage Vbattbb or Vbattihf lines Try to drops or current T find short circuit Check is large gt 1A components which are able to
34. ne from battery CBusDa CBusEnX CBusCIk The SIM power up down sequence is generated in the UEM This means that the UEM generates the RST signal to the SIM Also the SIMCardDet signal is connected to UEM The card detection is taken from the BSI signal which detects the removal of the battery Monitoring of the BSI signal is done by a comparator inside UEM The threshold voltage is calculated from the battery size specifications The SIM interface is powered up when the SIMCardDet signal indicates card in This signal is derived from the BSI signal SW tries first to power up the SIM with 1 8 V If this doesn t succeed power up is repeated with VSIM switched to 3 V The data communication between the card and the phone is asynchronous half duplex 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 Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 23 Company Confidential RH 29 Company Confidential NOKIA 6b Baseband Troubleshooting Nokia Customer Care Figure 3 SIM Power Up Tek EIDTIR Single sa 500kKS s T Ch2Zoom 1 0X Vert 0005XHorz Ch1 Vsim Ch2 Reset Ch3 Clock Ch4 I O Measured with 3Vsim Ki 2 00V M20 0ms Chi 7 1 48 V 16 Feb 2001 EI 200M 16 17 54 Figure 4 SIM answer to reset L3 SIM answer to reset CH1 SIM_CLK 4 CH2 SIM_RST 4 CH3 SIM_VO CH4 SIM_PWR
35. ng Inspect components which are connected Vchar line F380 L380 and V380 Ichar over limits Inspect components which are connected at Vchar line If those are OK First change cur rent sense resistor R190 if calibration is not still successful change UEM Calibration can be checked using ADC readings Known voltages currents and resis tances are fed and read by ADC readings read values and known values can be com pared ADC reading Divided and scaled battery voltage Charger voltage Charger current BSI and Btemp val ues can be read by this tool Read values few times before you can be sure that results are accurate NOTE IF Vbatt Scaled and Divided unit results are different default calibration values are used In this case perform EM calibration to get full performance of phone Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 21 Company Confidential RH 29 Company Confidential 6b Baseband Troubleshooting Maximum tolerances are NOKIA Nokia Customer Care Reading Check point Tolerance Vbatt SCAL 4 2V 25mV Vchar 8 4V 40mV Ichar 500mA 20mA BSI 91k 1 3kohm Btemp 47k 5 lt 25 C Backup battery Symptom of backup battery fault is 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 needed to fully charge the backup battery in the device NOTE
36. on Page 35 Company Confidential RH 29 Company Confidential 6b Baseband Troubleshooting Image on display not correct or missing MJ 21 Part of display image corrupted Put the phone on NOKIA Nokia Customer Care Change contrast Problem still and insert picture stets Flash phone with display test OK Replace display Page 36 Copyright 2004 Nokia Corporation Company Confidential Issue 1 05 2004 NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Display backlight does not turn on Display not working Displ y EDS OI Check and replace display module or connectors Check voltage at Ed C130 and C133 Check connector Replace D130 and V130 Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 37 Company Confidential RH 29 Company Confidential 6b Baseband Troubleshooting Hand portable audio Start Replace earpiece with new one Does the earpiece work now No Y Is earpiece working No Use Phoenix audio test to set MIC2 Amp1 0dB MicGainCtrl 0dB HP OUT GainCtrl 6db LOOPBACKANA on Place phone to MJ21 and set it to local mode NOKIA Nokia Customer Care Retest N Yes earpiece and UI module Y Measure DC offset from earpiece pads Is it 1 3V Yes Y Measure MICB2 from MIC2P Is it 2 1V Yes
37. shooting for further information Check the crystal oscillator B190 is oscillating at 32 768kHz frequency If not change B190 If OK measure sleepclk from J123 Frequency should be the same 32 678kHz see Figure 1 Sleep clock on page 17 below If not change UEM Page 16 Copyright 2004 Nokia Corporation Issue 1 05 2004 Company Confidential NOKIA Company Confidential RH 29 Nokia Customer Care 6b Baseband Troubleshooting Figure 1 Sleep clock Tek Stop 5 00MS 5 258 ACQS Slee Cik kb C1 Freq 32 676kHz CH1 SleepClk J123 goen MT OHS D40mV g Aug 2001 12 04 34 Charging checking Use the BL6 C battery and JBV 1 calibration set to test charging NOTE power supply cannot be charged if it not has a current sinking capability When you are charging totally empty battery remember that start up charging might take a little bit longer time than normal During this time display is blank If charger is not NMP approved type and its current and voltage is not within NMP charger window then software does not start charging and there is NOT CHARGING on the display Voltage should be between 5 3V 9 5V and current between 200mA 900mA Remove and reconnect battery and charger few times before you start to measure device This check ensures that the fault really exists Refer to Charging troubleshooting Issue 1 05 2004 Copyright 2004 Nokia Corporation Page 17 Company Confidential RH 29 Company Confidential NOKIA
38. z 13 56MHz http www edatop com peixun antenna 1 16 html X 2004 10 X A x http www edatop com X EDA W http www mweda com X http shop36920890 taobao com F E3jEB IR http www edatop com yt PAG http Wshop36920890 taobao com
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