Nokia Customer Care RH-37 Series Transceivers 6(a) - Baseband Troubleshooting Instructions Issue 1 07/04 2004 Nokia Corporation Company Confidential Page 1
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care [This page left intentionally blank] Page 2 Nokia Corporation Issue 1 07/04
Nokia Customer Care RH-37 6(a) - BB Troubleshooting Instructions Table of Contents Page No Test Points.................................................................................................................................................. 5 Troubleshooting........................................................................................................................................ 6 Top level flow 1 .......................................................................................
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care [This page left intentionally blank] Page 4 Nokia Corporation Issue 1 07/04
Nokia Customer Care RH-37 6(a) - BB Troubleshooting Instructions Test Points Issue 1 07/04 Nokia Corporation Page 5
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Troubleshooting Top level flow 1 TOP Phone is totally dead? Yes Phone is dead No Flash programming does not work? Yes Flash faults No Phone does not start up or phone is jammed? Yes Phone is jammed No Charging does not work? XPress on Grip LEDs do not work? Yes Charger Yes XPress on Grip LEDs No TOP2 Page 6 Nokia Corporation Issue 1 07/04
Nokia Customer Care RH-37 6(a) - BB Troubleshooting Instructions Top level flow 2 Issue 1 07/04 Nokia Corporation Page 7
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Phone is dead 1 Phone is dead Is VBAT=3.7VDC (meas.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Phone is dead 2 Dead2 Is Sleep CLK on J2802 = 32.8kHz, 1.8Vpp? Yes Check: B2200, C2241, C2210, PWB then replace D2200 No See Waveform 1 Is PURX=1.8VDC on J2800 1sec. after power key is pressed? Replace D2200, PWB No Yes Is VR3=2.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Flash faults 1 Flash faults Does the phone set the Fbus TXD at J2809 line high after the startup? Measure BSI pulse during Flash programming. Is it OK? Yes Yes Measure FBUSTX line during Flash programming from testpoint J2809. Is it 1.
Nokia Customer Care RH-37 6(a) - BB Troubleshooting Instructions Flash faults 2 Issue 1 07/04 Nokia Corporation Page 11
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Phone is jammed 1 Phone is jammed Measure VIO, VCORE, VFLASH1, VANA, VR3 voltages. Are they OK? No Check L2200, C2239, BSI/BTEMP lines and VBATT lines Check VBATT1-6, VIO, VCORE, VFLASH1, VANA, VR3 lines. Are they ok? Yes Yes Measure 32.8kHz Sleep Clk from testpoint J2802. Is it OK? No Check BSI/BTEMP lines. If OK UEM regulators are not working. Change UEM. Waveform 4 No Yes Change UEM Page 12 See Waveform 4 Measure 32.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care P a rt 2 S e e W a v e f o rm 5 Waveform 5 M e a s u re 2 6 M H z R F C lk f ro m J 2 8 1 5 . Is it O K ? Check R2902 and C 2 9 0 2 . If o k change N7500. Yes M e a s u re P U R X s ig n a l f ro m te s tp o in t J 2 8 0 0 . Is it 1 .
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Phone is jammed 2 Jammed 2 Waveform 6 Phone shutsdown after 30sec? Measure watchdog signal CBUSDA from testpoint J2805. Is it ok? Yes Waveform 7 No No Change UPP See Waveform 6 Measure DBUSClk 13MHz signal from testpoint J2811. Is it OK? No See Waveform 7 Yes Measure FBUSRX signal during phone info read from testpoint J2810. Is it OK? Waveform 8 No No Change UEM Check phone info.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Charger If charging does not work, the cause might be faulty or no calibration of BB. Therefore the calibration should be checked if the procedures in the flow chart do not help. Charger Connect charger (ACP-7E) Does Battery bar scroll? No No Check C2004, R2270, R2273 and C2270. Check FUSE F2000 Check X2001, C2006, C2007, F2000, L2003 and line. Yes Read BTEMP value. (compare it to ambient temperature).
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Xpress on Grip LEDs XPress on Grip LEDs Set phone in Local mode. Select LED Control from menu Testing using Phoenix. Turn all LEDs on. End Yes Are all LEDs on? No Are GENIO 8,11,12,13,21,15,16 and 17 high? No Change UPP D2800 No Change UEMEK D2200 Yes Are KLIGHT and KLIGHT2 < 0,5 V ? Yes Check LEDs, transistors V2421- V2425, resistors R2402 - R2419. Change faulty component.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care SIM Card SIM card Insert SIM card faults? Yes No Check BSI line, X2000, C2004, R2270, C2270, R2273. If OK change UEM. No Check VSIM line, X2700, C2703, C2219. If ok change R2700. If still wrong VSIM voltage change UEM No Check SIM lines. If OK change R2700. If still fail change UEM. No Does phone enter LOCAL MODE. OK? Yes Measure VSIM voltage from X2700. Is it 3V or 1.8V? Yes Check SIM power Up sequence.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Audio faults 1 Audio faults Is HP earpiece working? Try changing earpiece. Is it working now? No No Yes Yes Set phone in LOCAL mode. Use Phoenix Audio Test. Set EXT IN, HP OUT, LOOP ON Measure DC offset voltagefrom Earpiece pads. is it ~1.38V to GND? No Check L2150, R2151, C2179 and line. If OK change UEM. Yes Measure MICB2voltage from XMICP pads. Is it ~2.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Audio faults 2 Audio faults 2 Is HP microphone working Change microphone. Is it working now No Yes Yes No Set phone in LOCAL mode. Use Phoenix Audio Test. Set Hp microphone in, Ext speaker out, Loop On. Audio faults 3 Measure MICB1 DC voltage from MICP pad, J2430. Is it >1,0VDC Yes No Check R2153, R2154, C2159, C2171 and line. If OK change UEM. If still fail change UPP Check R2160, C2152, C2175, R2156, L2153, C2154 and line.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Audio faults 3 Audio faults 3 Is Ext-ear working No Set phone in LOCAL mode. Use Phoenix Audio Test. Set Ext microphone in Ext speaker out, Loop On. Yes Measure DC volts on speaker pads of X2002, pin 11 - 14. Are they ~0,8V DC (to GND) Is Ext-mic working Yes Change UEM No No Yes Set phone in LOCAL mode. Use Phoenix Audio Test. Set Ext microphone in Ext speaker out, Loop On Measure DC volts on micp pad of X2002, pin 10. Is it ~2.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Audio faults 4 Audio faults 4 Is IHF speaker working? Change speaker. Is it working now? No Yes No Set Phone in LOCAL mode. Use Phoenix Audio Test. Set Ext microphone in Ihf speaker out, Loop On. Yes Measure DC volts on speaker pads. Are they ~0.5Vbat (to GND) END Yes No Check C2164, C2180. If OK change UEMEK. Check C2164, L2151, L2152, L2154, L2155, R2152, R2155, lines and Vbat. If OK change UEMEK.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Earpiece 2.15 Earpiece Earpiece Waveform 9 Connect EXT audio signal 1kHz (sine 300mVpp) to XMICP pad and Ground on XMICN. Set phone in LOCAL mode. Use Phoenix Audio Test. Set Ext microphone in Ext speaker out, Loop On. Waveform 10 Measure signal from external earpiece pads, X2002, pin 11 - 14. Is there a sine vawe? No Mesure sine signal at UEM (R2154 MIC1_P). Use AC coupling.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Display faults 1 Set phone into local mode. Set VBATT 4.2V. Start display test with Phoenix. Set display and keypad lights on. Display faults Are the LEDs turned on? No Check N2400 Measure signal from C2407. Is it ~16 V? Yes Display faults 2 Yes Check R2425 and X2400 pin1,12 No Measure voltage from C2424. Is it ~2,4 V? No Check control signal line if ok. If yes, change UEM. No Check battery and line.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Display faults 2 Display faults 2 Change UI module. Is it working? No Does the display work? No Check X2400 Yes Open Phoenix, enter Test mode and goto Testing > Display Test > Select Test > Contrast Test. Set the height and width values to 128 respectively.Then click Send to Phone Yes Measure VDD (2.78V) and VDDI (1.8V). Is it OK? No Is there a clear difference on the Grey scale? No Yes Yes Change UEM Measure RESX, CSX.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Keypad faults 1 Keypad faults Is the power key working? Measure voltage from S2419. Is it 3.7V? No Yes No Yes Measure voltage from S2419 when power key is pressed. Is it high? Yes Check S2419. Is it OK? No No Keypad faults 2 Check R2423, C2402, C2400, S2419 and line.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Keypad faults 2 Keypad faults 2 Are keys working? Yes No Measure SLEEPX signal from J2801 when key is pressed. Is it 1.8V? Yes When keypad is pressed, the LEDs are turned on? Yes END Page 26 Display faults Nokia Corporation No Check lines. If still failing change UPP. No Check lines. If still failing change UPP.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Camera faults 1 Change the camera module. Camera works? Camera Yes No Is the viewfinder starting? No Check X1470 solder joints. Are they OK? Change X1470. No Yes Measure 1.8 V from C1482 when camera is activated. Is it OK? Yes No Check N1470, C1481, C1482, C1483, C1473 and C1474. Change defect part. Yes Measure 2.8 V from C1470 when camera is activated. Is it O K? No Check C1470, C1471 and C14721. Change defect part.
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Camera faults 2 Camera 2 Check R1473 and C1475. Are they OK? No Change defect part No Change defect part. Yes Check R1474 and R1475. Are they OK? Yes Check R1471 and R1472. Are they OK? No Change defect part. Yes Change the HW accelrator D1470. Retest camera.
Nokia Customer Care RH-37 6(a) - BB Troubleshooting Instructions Self test Issue 1 07/04 Nokia Corporation Page 29
RH-37 6(a) - BB Troubleshooting Instructions Nokia Customer Care Functional cover interface FCI faults complete phone ? No Yes No Add FCI PadExtender FCI PadExtender available ? Yes term inal works with reference FC ? No Re-test (FCI-ASIP already exchanged) ? Change UPP (D450) Yes No Phoenix: 1. Set phone into "TEST Mode" 2. Open window "Testing / FCI Test" 3.
