CCS Technical Documentation NSB-9 Series Transceivers Troubleshooting Instructions Issue 1 04/03 Nokia Corporation
NSB-9 Troubleshooting Instructions CCS Technical Documentation [This page left intentionally blank] Page 2 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Table of Contents Page No RF Troubleshooting ....................................................................................................... 4 Introduction ..................................................................................................................4 EQUIPMENT NEEDED:.......................................................................................... 4 USEFUL HINTS ............................................
NSB-9 Troubleshooting Instructions CCS Technical Documentation RF Troubleshooting Introduction This document describes the methods of RF troubleshooting for Iris NSB-9 transceiver. Fault finding charts of the most common fails are included in this document. Arrows are marked with 9 (OK) and 8 (NOT OK), respectively. Measurement equipment is marked as: DMM Digital Multimeter OSC Oscilloscope SA Spectrum Analyzer Figures of typical signals and voltages at each testpoint are described in Chapter 8.
NSB-9 Troubleshooting Instructions CCS Technical Documentation TROUBLESHOOTING IN CASE OF RF TUNING FAIL Channel Select Filter Calibration Calibration is done using internal calibration circuit (UEM sends and receives a test signal to/from Hagar). VCO (G650), RX-bandfilters (Z501, Z551) and TX-filter/balun (Z700, T700) don't have any effect to the Channel Select Filter Calibration. Instead, baseband shall be functional (=VCTCXO G660 is running).
NSB-9 Troubleshooting Instructions CCS Technical Documentation shall be checked.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 1: Fault finding chart, TX850 Check VCTCXO output signal at TP20 26 MHz 8 Check VCTCXO supply voltage at TP3 2.78 VDC ± 3% OSC 9 8 Start baseband troubleshooting (UEM) DMM 9 Check VCTCXO DMM control voltage at TP13 1.1 VDC ± 200 mV 8 Start baseband troubleshooting (UEM) 9 Change VCTCXO G660 OSC Check TX IQ signals at TP21 8 Start baseband troubleshooting (UEM) 9 8 SA Check TX modulator output signal at TP24 836.
NSB-9 Troubleshooting Instructions CCS Technical Documentation 9 9 Check SDATA at TP51, SCLK TP52, SLE TP53 OSC 8 Start baseband troubleshooting (UPP) 8 Check VBATT path from battery connector to PA 9 Change Hagar ASIC N600 Check PA output signal at TP60 836.6 MHz DMM 8 Check PA supply voltage at TP9 VBATT (∼3.9 VDC) SA 9 OSC Check PA control voltage at TP27 9 Change PA N700 Change Hagar ASIC N600 8 Change coupler L750 8 Check antenna switch control signal at TP62 2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation TX1900 TROUBLESHOOTING Phoenix commands RF Controls ⇒ Band GSM 1900 TX ⇒ Burst mode Channel 661 ⇒ TX Power Level 10 TX PA Mode Free ⇒ TX Data Random Issue 1 04/03 Nokia Corporation Page 9
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 2: Fault finding chart, TX1900 Check VCTCXO output signal at TP20 26 MHz 8 Check VCTCXO supply voltage at TP3 2.78 VDC ± 3% OSC 9 8 Start baseband troubleshooting (UEM) DMM 9 Check VCTCXO DMM control voltage at TP13 1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation 9 9 Check SDATA at TP51, SCLK TP52, SLE TP53 OSC 8 Start baseband troubleshooting (UPP) 8 Check VBATT path from battery connector to PA 9 Change Hagar ASIC N600 Check PA output signal at TP25 1880 MHz DMM 8 Check PA supply voltage at TP9 VBATT (∼3.9 VDC) SA 9 OSC Check PA control voltage at TP26 9 Change PA N700 Change Hagar ASIC N600 8 Change coupler L750 8 Check antenna switch control signal at TP29 2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation RX850 troubleshooting Phoenix commands RF Controls ⇒ Band GSM 850 RX ⇒ Continuous mode Channel 190 ⇒ AGC 8 FEG ON + 46 dB Page 12 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 3: Fault finding chart, RX850 Apply input signal 881.667 MHz Check VCTCXO supply voltage at TP3 -50 dBm 2.78 VDC ± 3% Start baseband troubleshooting (UEM) DMM 9 9 Check VCTCXO output signal at TP20 26 MHz 8 8 OSC 9 Check VCTCXO DMM control voltage at TP13 1.1 VDC ± 200 mV 8 Start baseband troubleshooting (UEM) 9 Change VCTCXO G660 Check RX signal at antenna switch output TP63 881.
NSB-9 Troubleshooting Instructions CCS Technical Documentation 9 Apply input signal Start baseband troubleshooting (UEM) 881.667 MHz -90 dBm 9 8 OSC Check RX IQ signal at TP37 8 Check SHF VCO output signal at TP40 3526.4 MHz 8 SA 9 DMM Check VCO supply voltage at TP7: 2.78 VDC ± 3% 9 9 Check VCO control voltage at TP41: 1.8 VDC ± 200 mV Start baseband troubleshooting (UEM) DMM DMM Check Hagar ASIC supply voltages at TP4, TP5, TP6, TP8: 2.78 VDC ± 3% TP10: 1.35 VDC ± 2% TP1: 4.
NSB-9 Troubleshooting Instructions CCS Technical Documentation RX1900 Troubleshooting Phoenix commands RF Controls ⇒ Band GSM 1900 RX ⇒ Continuous mode Channel 661 ⇒ AGC 8 FEG ON + 46 dB Issue 1 04/03 Nokia Corporation Page 15
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 4: Fault finding chart, RX1900 Apply input signal 1960.067 MHz Check VCTCXO supply voltage at TP3 -50 dBm 2.78 VDC ± 3% 9 Start baseband troubleshooting (UEM) DMM 9 Check VCTCXO output signal at TP20 26 MHz 8 8 OSC 9 Check VCTCXO DMM control voltage at TP13 1.1 VDC ± 200 mV 8 Start baseband troubleshooting (UEM) 9 Change VCTCXO G660 Check RX signal at antenna switch output TP31 1960.
NSB-9 Troubleshooting Instructions CCS Technical Documentation 9 Apply input signal Start baseband troubleshooting (UEM) 1960.067 MHz -90 dBm 9 8 OSC Check RX IQ signal at TP37 8 Check SHF VCO output signal at TP40 3920 MHz 8 SA 9 DMM Check VCO supply voltage at TP7: 2.78 VDC ± 3% 9 9 Check VCO control voltage at TP41: 3.3 VDC ± 200 mV Start baseband troubleshooting (UEM) DMM DMM Check Hagar ASIC supply voltages at TP4, TP5, TP6, TP8: 2.78 VDC ± 3% TP10: 1.35 VDC ± 2% TP1: 4.75 VDC ± 3.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figures of signals and voltages in testpoints Figure 5: TP20: 26 MHz VCTCXO output signal Figure 6: TP21: TX I/Q signal Page 18 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 7: TP22: TX1900 modulator output signal Figure 8: TP23: TXC signal from UEM ASIC Issue 1 04/03 Nokia Corporation Page 19
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 9: TP24: TX850 modulator output signal Figure 10: TP25: TX1900 PA output signal Page 20 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 11: TP 26: TX1900 PA power control signal Figure 12: TP27: TX850 PA power control signal Issue 1 04/03 Nokia Corporation Page 21
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 13: TP 28: TX1900 signal at coupler output Figure 14: TP29: Antenna switch control signal in TX1900 mode Page 22 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 15: TP30: TX850 signal at antenna pad Figure 16: TP30: TX1900 signal at antenna pad Issue 1 04/03 Nokia Corporation Page 23
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 17: TP31: RX1900 signal at antenna switch output Figure 18: TP32: RX1900 signal at dual SAW filter output Page 24 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 19: TP33: RX1900 signal at LNA output Figure 20: TP34, TP35: RX1900 LNA control signals (Burst mode) Issue 1 04/03 Nokia Corporation Page 25
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 21: TP36: RX1900 signal at 2nd band filter output Figure 22: TP37: RX IQ signal (Burst Mode) Page 26 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 23: TP37: RX IQ signal (GSM850, Continuous Mode, Signal level -90 dBm) Figure 24: TP37: RX IQ signal (GSM1900, Continuous Mode, Signal level -90 dBm) Issue 1 04/03 Nokia Corporation Page 27
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 25: TP40: SHF VCO output signal in TX850 mode Figure 26: TP40: SHF VCO output signal in TX1900 mode Page 28 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 27: TP40: SHF VCO output signal in RX850 mode Figure 28: TP40: SHF VCO output signal in RX1900 mode Issue 1 04/03 Nokia Corporation Page 29
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 29: TP51,52,53: SDATA, SCLK and SLE signals in GSM850/1900 mode Figure 30: TP60: TX850 PA Output Signal Page 30 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 31: TP61: TX850 signal at coupler output Figure 32: TP62: Antenna switch control signal in TX850 mode Issue 1 04/03 Nokia Corporation Page 31
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 33: TP 63: RX850 signal at antenna switch output Figure 34: TP 64: RX850 signal at dual SAW filter output Page 32 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation TP 65, 67: RX850 LNA control signals (Burst mode) Figure 35: TP 66: RX850 signal at LNA output Issue 1 04/03 Nokia Corporation Page 33
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 36: TP68: RX850 signal at 2nd band filter output Page 34 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation FM Radio Troubleshooting Introduction This document describes the methods of FM radio troubleshooting for Iris NSB-9 transceiver. EQUIPMENT NEEDED NSB-9 module jig MJS-48, power and DAU-9S cables DC power supply 3.
NSB-9 Troubleshooting Instructions CCS Technical Documentation FM RADIO SCHEMATICS Figure 37: Input signal connection to antenna (headset cable) Figure 38: Input signal single to differential conversion Page 36 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 39: VCO components Figure 40: Connection to UPP Issue 1 04/03 Nokia Corporation Page 37
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 41: Audio signal output Page 38 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation FM Radio layout Figure 42: Components Figure 43: Components on PWB Note! Components L105, L106, L107, L108, L109, C108, C109, C110, C111, R164, R165, R166, R167, R170 and R171 are not shown in the picture. Components are placed near audio amplifier N150.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 44: FM radio p testpoints J359, FMCLK AUDIO AMPLIFIER J356, FMCTRLDA HSEAR R HSEAR L J358, FMWREN J357, FMCTRLCLK VFLASH2 FM RADIO R J104, HSEAR P FM RADIO L J103, HSEAR R N J105, FM RADIO ANTENNA INPUT Page 40 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 45: FM radio fault finding chart Turn on FM radio in local mode. Does the radio start? 8 9 Check components around FM radio serial bus and clock signal (C374, C375, R357 and R361). 8 Check 32 kHz clock signal at J359. Does the radio start now? Does the radio start now? 9 f0= 98 MHz ∆f= 75 kHz fm= 1 kHz level= -90 dBm 9 8 Replace N356. Does the radio start now? Check N356 soldering (all pins).
NSB-9 Troubleshooting Instructions CCS Technical Documentation REFERENCE MEASUREMENT RESULTS Figure 46: Audio output signal Signal 1: Audio output signal at PWB test points J103 and J104 (FM test signal, audio volume 100%) Signal 2: Audio output at FM radio pins 22 and 23 (same signal as in C170 and C171) Page 42 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 47: Reference clock signal from UPP FM radio clock at test point J359 (32 kHz clock signal when radio is turned on) Figure 48: RF input signal 15:51:49 03 JUL 2002 REF -20.0 dBm MKR 97.9280 MHz -71.03 dBm #AT 0 dB PEAK LOG SWEEP CONT SGL FREE RUN 10 dB/ VIDEO LINE WA SB EXTERNAL CORR SC FS SYNC CRD CENTER 98.0000 MHz #RES BW 10 kHz VBW 10 kHz SPAN 300.0 kHz #SWP 1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 49: VCO signal 10:46:24 03 JUL 2002 MKR REF .0 dBm PEAK LOG #AT 10 dB 196.440 MHz -9.40 dB MEAS UNCAL SWEEP CONT SGL FREE RUN 10 dB/ VIDEO LINE WA SB EXTERNAL CORR SC FS SYNC CRD CENTER 196.450 MHz #RES BW 10 kHz #VBW 10 kHz SPAN 1.000 MHz #SWP 20.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Baseband Troubleshooting PWB Test points Figure 50: Flash programming testpoints J101, BSI VBAT J102, BTEMP FBUS RX GND FBUS TX MBUS VPP J1, RESET J2, RFBUSDA J3, RFBUSCLK J4, RFBUSEN1 Issue 1 04/03 Nokia Corporation Page 45
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 51: Baseband testpoints VBATT6 VANA J410, MBUSRX VFLASH1 VIO VBATT4 VBATT2 VBATT3 VBATT1 VBATT5 J412, FBUSRX J100, VBAT J405, UEMINT J409, MBUSTX J414, DBUSDA J404, SLEEPCLK J413, DBUSCLK J411, FBUSTX J419, FLSCLK J415, DBUSEN1X VCORE J418, FLS2CSX VFLASH2 J420, FLSCSX J402, PURX J416, EXTWRX J403, SLEEPX Page 46 J417, EXTRDX Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 52: SIM testpoints VSIM VIO J404, SLEEPCLK J407, CBUSDA J408, CBUSENX J402, PURX J406, CBUSCLK SIMIODA SIMRST SIMCLK VSIM SIMRST Issue 1 04/03 Nokia Corporation Page 47
NSB-9 Troubleshooting Instructions CCS Technical Documentation Figure 53: Miscellanous testpoints EARP J306 FLIP CLOCK J305 EARN J302 FLIP VBAT J304 FLIP DATA J303 J301 J308 FLIP GND J307 J153, CLK J152, ENB J154, DATA Audio amplifier control lines, some are placed under dome sheet N301 HALL-SENSOR Page 48 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation V319 UPPER FLIP VBAT SWITCH J150, IHF J151, IHF + V319 LOWER FLIP VBAT SWITCH J331, HALL SENSOR OUTPUT VIBRA VBAT J106, MICN UEM VIBRA J107, MICP X102 PIN 1 GND Issue 1 04/03 Nokia Corporation VCHAR Page 49
NSB-9 Troubleshooting Instructions Signal Name FBUS_TX CCS Technical Documentation Function Flash programming data and phone control Flash programming data and phone control Flash programming clock and phone control Flash programming startup signal,battery size indicator, local mode switch, SIM card detection Flash programming voltage Test Point PRODTP2 Signal Characteristics 2.8-0V, digital signal Notes From phone to prommer or PC PRODTP3 2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation CBUSENX CBUS selection and enable J408 1.8-0V, digital signal VIO C207 1.8V C205 2.8V C206 2.8V VCORE DLIGHT Power supply for LCD, UPP and flash memory Power supply for LCD, IR and flash memory Power supply for UEM (AD, RF and audio codecs) Power supply for UPP DC/DC converter control C208 Converter pin8 1.0-1.8V programmable ∼VBAT 1.8 V used in NHM-4, initial value is 1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Troubleshooting steps The following hints help to find the problem if the circuitry seems to be faulty. The instructions are divided into following sections: 1. Phone is dead 2. Flash faults 3. Phone is jammed 4. Charging fault 5. Sim card fault 6. Audio faults 7. Display faults 8. Keypad fault 9. FM-radio faults The first thing to do is to carry out a thorough visual check of the module. Ensure in particular that: 1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Main troubleshooting tree TOP Phone is totally dead Yes Phone is dead No Flash programming doesn´t work Yes Flash faults No Phone doesn´t start up or the phone is jammed Yes Phone is jammed No Charging doesn´t work Yes Charging fault No TOP 2 Issue 1 04/03 Nokia Corporation Page 53
NSB-9 Troubleshooting Instructions CCS Technical Documentation TOP 2 Phone doesn´t read SIM card Yes SIM card fault Yes Audio faults Yes Display faults Yes Keypad faults Yes FM Radio faults No Audio faults No Display or LED´s doesn´t work No Keypad doesn´t work No FM Radio doesn´t work No END Page 54 Nokia Corporation Issue 1 04/03
NSB-9 Troubleshooting Instructions CCS Technical Documentation Phone is dead Phone is dead Phone current is 0mA? Yes Check X100 solder. Check L260 – L265 and C260 – C265. Check all VBAT lines.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Flash faults Flash faults The phone does not set FBUSTX line high after the startup. Yes Measure BSI pulse during Flash programming. No Is it OK ? No Yes Measure FBUSTX line during Flash programming from testpoint J411. Is it ~1.8V Yes The phone does not set FBUSTX line low after the line has been high. Check BSI line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Flash faults page 2 Wrong manufactor ID and Device ID Yes Change FLASH No Is the phone totally dead? Yes Phone is dead Yes Phone is jammed No Phone doesn´t start up or the phone is jammed? No Retest Issue 1 04/03 Nokia Corporation Page 57
NSB-9 Troubleshooting Instructions CCS Technical Documentation Phone is jammed Phone is jammed Measure VIO, VCORE, FLASH1, VANA, VR3 voltages. Are they OK? No Check VBATT 1-6 VIO, VCORE, FLASH1, VANA, VR3 lines. Are they OK? No Check BSI/BTEMP lines. If OK and UEM regulators are not working. Change UEM Yes Yes Measure 32.6kHz Sleep CLK from testpoint J404. Is it OK? No Measure 32.6kHz Sleep Clk from B200. Is it OK? Measure 13MHz RFClk from R420. Is it OK? No Measure 26MHz RFClk from C660.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Jammed page2 Phone shutdown after 30s Yes Measure watchdog signal CBUSDA from testpoint J407 Is it OK? No Change UPP No Measure DBUSClk 1 Mhz signal from testpoint J413. Is it OK? OK? No Yes Read phone info. Is it OK? No Measure FBUSRX signal during phone info read from testpoint 412. Is it OK? Yes Change UEM Yes Yes Retest Measure FBUSTX signal during phone info read from testpoint J411.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Charging fault Charging fault Connect charger (ACP-7) Battery bar doesn´t work (scroll) No Retest Yes Measure voltage over V100 Is it > 3.0 Vdc? No Check X101, X102, F100, L100, V100, C100, C101 and charger line. Change defected part Yes Read BTEMP value. (Compare it to ambient temperature) Is it ~25 C (0319)? No Check X100, C114, R202, C220, R207 and line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation SIM card fault SIM card Insert SIM or Card rejected fault Yes Check X386. Is it OK? No Change defected part Yes Try to set phone in local mode. Is it OK? No Check BSI-line including X100, C100, C240, R202 and R206. If OK, change UEM Yes Measure VSIM voltage at X386. Is it ~3.0V No Check VSIM line X386, C390, C203. If OK, change R388. If still fail, change UEM. Yes Check SIM power-up sequence.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Audio faults Audio faults 1 Is the earpiece working ? Yes No Try to change the earpiece. Is it working now? Yes Retest No Set phone to LOCAL mode. Set routing EXT IN, HP OUT by using phoenix “Audio Routing and Test Signals” test Measure DC offset voltage from earpiece pads (against GND). Is it ~1.36V ? No Check L150, C180, C181, R152, R153 and line. If OK -> change UEM Yes Measure MICB2 voltage from XMICP (X102 / pin10). Is it ~1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Earpiece 2 Connect external 1kHz (sine 200mVpp) audio signal in XMICP line and ground line to XMICN line. Measure differential sine signal from earpiece pads. Is it ~190mVpp? No Measure signal from C152, (XMICP). Is it ~110mVpp? Check L150, R152, R153, C180, C181 If still fail, change UEM No Yes Check L103, L104, R161, C163, C162, R156, R157, C158, C152, C159 and corresponding componenets from XMICN line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Change defected part and retest Audio faults 2 No Is the IHF speaker working? Check IHF speaker connections. Is it OK? No Try to change IHF speaker. Is it working now? Yes Yes Yes Retest No Set phone in LOCAL mode. Use Phoenix “Audio Routing and Test Signals” test. Set output path as IHF speaker (1 Measure DC offset voltage from speaker pads (J150 / J151 to GND). Is it ~1.9V? No Check L151, L152, R162, C172 and line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation IHF 2 Use Phoenix “Audio Routing and Test Signals” test. Use internal sine wave generator and set signal frequency to 1kHz and peak level to 4000 Hex Measure differential sine signal from IHF speaker pads J150, J151. Is it ~810mVpp? No Check C174, C179, C178, R163 and XAUDIO(7) line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Change defected part and retest Audio faults 3 No Is the External Audio out working? No Check system connector and soldering. Are they OK? Yes Set phone in LOCAL mode. Use Phoenix “Audio Routing and Test Signals” test. Set output path as HP speaker. Insert headset to (2 route audio to HSEAR Measure DC offset voltage from HSEAR P&N and HSEAR R P&N lines. Is it ~2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Ext. audio out 2 Yes Use Phoenix “Audio Routing and Test Signals” Test. Use internal sine wave generator and set signal frequency to 1kHz and peak level to 4000 Hex Measure differential sine signal from HSEAR P&N and HSEAR R P&N speaker pads. Is it ~60mVpp? No Check C174, C169 and XAUDIO(7) line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Audio faults 4 Is internal microphone working ? No Check microphone connector. Is it OK No Change defect part and retest No Yes Try to change microphone. Is it working now? Yes Retest No Set phone in LOCAL mode. Use Phoenix “Audio Routing and Test Signals” Test. Set routing HP in Ext out Yes Measure MICB1 voltage from MICP (J107). Is it ~2.1V ? No Check L110, C153, R155, C154 and line.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Audio faults 5 Is external microphone working ? No Check if external audio device is OK? No Retest with undamaged ext. audio device. Yes Yes Check system connector X102. Is it OK ? No Change defect part and retest Yes Set phone in LOCAL mode. Use Phoenix “Audio Routing and Test Signals” Test. Set (4 routing Ext in HP out Yes Measure MICB2 voltage from XMICP (X102 / pin 10). Is it ~2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Display faults Display faults Set phone in LOCAL mode. Start Display test with Phoenix and turn LEDs on. Are the display module LED´s turned ON? Yes Try to change display module. Is it working now? No Yes Retest No Check X300 Measure signal from X300 pin 10. Is it 10 – 14V? Yes Check X300 No Check R306. If OK measure VBAT from N300 pin 1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Display faults 2 Does the display start? Try to chance the display module. Is it working now? No Yes Yes Retest No Check X300 Measure VDD (2.78V) and VDDI (1.8V). Are they OK? No Check C305, C306 and lines. If OK, change UEM. No Check X300 and lines. If OK, change UPP. Yes Measure XRES, XCS, SI. Are voltage levels ~1.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Keypad faults Keypad faults Is the power key working? Measure voltage from S336. Is it high? No Yes No Check R317, C311, S336 and line. If OK change UEM. Yes Measure voltage from S336 when key is pressed. Is it high? Yes No Check S336.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Keypad faults 2 Are flip T9 keys working? Yes Check flip poco pins, engine contact pads. and spring contacts between A-cover and engine module. Are they OK? No Change defected part, either flip or A-cover. No Yes Change flip. Is it OK now? Yes Retest No Measure Flip VBAT voltage between J301 and J307 (Should be same as engine VBAT voltage). No Flip faults 1 Yes Measure voltage levels from flip data (J303) and clock (J305).
NSB-9 Troubleshooting Instructions Keypad faults 3 Are flip QWERTY keys working? CCS Technical Documentation Check flip poco pins, engine contact pads. and spring contacts between A-cover and engine module. Are they OK? Change defected part, either flip or A-cover. No Yes Change flip. Is it OK now? Yes No Yes Retest No Measure Flip VBAT voltage between J302 and J308 (Should be same as engine VBAT voltage). No Flip faults 2 Yes Measure voltage levels from flip data (J304) and clock (J306).
NSB-9 Troubleshooting Instructions CCS Technical Documentation Keypad faults 4 Is it a S306 that is not working (SHIFT key) Check switch S306, R316, Genio 19 line and VIO voltage at R316 ~1.8V. OK? Yes No No Yes Are engine QWERTY keys working? Change UPP No Change defect part Yes Measure voltage of keypad ROW where faulty key is located. Is it ~1.8V Check keypad switch and lines, R330, R331, R315. Are they OK? No Yes Yes Check switch and lines of faulty key. If OK change Z301.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Flip faults Flip faults 1 Check VBAT voltage from V320/pin5. Is it OK? No Check VBAT line, C201, C202. If not OK, change defect part and retest Yes No Check componenets R326, R327, R301. Are they OK? Change defect part and retest Yes Check V320 control voltage levels (pin 4). Flip closed -> ~2.75V. Flip open -> ~0V. OK? No Check voltage N301/pin3. Flip closed -> ~2.75V. Flip open -> ~0V. OK? No Check voltage N301/pin1 is it ~2.
NSB-9 Troubleshooting Instructions CCS Technical Documentation Flip faults 2 Check VBAT voltage from V319/pin5. Is it OK? No Check VBAT line, C201, C202. If not OK, change defect part and retest Yes Check componenets R321, R323, R328, L311, L313 and lines. Are they OK? No Change defect part and retest Yes Check V319 control voltage levels (pin 4). Flip closed -> ~0V. Flip open -> ~2.75V. OK? No Check voltage N301/pin3. Flip closed -> ~2.75V. Flip open -> ~0V.
NSB-9 Troubleshooting Instructions CCS Technical Documentation FM Radio doesn’t work See page 35, FM Radio troubleshooting.
