PAMS Technical Documentation NSB-8 Series Transceivers Troubleshooting Instructions Issue 1 01/02 ãNokia Corporation
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Table of Contents Page No Transceiver Troubleshooting ......................................................................................... 5 Baseband Troubleshooting ..........................................................................................5 PWB Points (and Measurement Points) .................................................................... 5 Troubleshooting steps ....................................................
PAMS Technical Documentation NSB-8 Troubleshooting Instructions List of Figures Page No Fig 1 Picture of top testpoints ..............................................................................................5 Fig 2 Picture of bottom testpoints........................................................................................6 Fig 3 Top testpoints .............................................................................................................7 Fig 4 Bottom testpoints...............
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Fig 41 X300 PIN 2: XCS, UPP (D400 pin C7) -> LCD CONNECTOR (X300 pin 2).......32 Fig 42 X300 PIN 4: SDA, UPP (D400 pin B6) -> LCD CONNECTOR (X300 pin 4) ......32 Fig 43 X300 PIN 5: SCLK, UPP (D400 pin C6) -> LCD CONNECTOR (X300 pin 5) ....33 Fig 44 X300 PIN 8: VOUT, LCD CONNECTOR (X300 PIN 8) -> C301 and C302 ........33 Fig 45 X303 PIN 2: KEYB_LIGHT, BACKLIGHT CIRCUITRY (V300 pin 6) -> UI CONNECTOR (X303 pin 2)................................
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Transceiver Troubleshooting Baseband Troubleshooting PWB Points (and Measurement Points) The following figures are the most needed testpoints in the NSB-8 transceiver.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 2: Picture of bottom testpoints Page 6 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 3: Top testpoints Issue 1 01/02 ãNokia Corporation Page 7
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 4: Bottom testpoints Page 8 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Table 1: Testpoints REFERENCE SIGNAL NOTE C205 VFLASH1 2.78 V regulator output UEM (D200) -> external FLASH memory C206 VANA 2.78 V regulator output UEM (D200) -> internal and external analog circuitry C207 VIO 1.8 V regulator output UEM (D200) -> internal and external logic circuitry C208 VCORE 1.8 V programmable regulator output UEM (D200) -> UPP (D400) C221 VR1A 4.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation J386 SIMDATA SIM data, see Figure 11, “J386: SIMDATA, UEM (D200 pin B2) <-> SIM CARD READER (X386 pin 4,” on page 17 UEM (D200) <-> SIM CARD READER (X386) J387 SIMRST SIM reset, see Figure 12, “J387: SIMRST, UEM (D200 pin A2) <-> SIM CARD READER (X386 pin 2),” on page 17 UEM (D200) -> SIM CARD READER (X386) J388 SIMCLK SIM clock, see Figure 13, “J388: SIMCLK, UEM (D200 pin B3) <-> SIM CARD READER (X386 pin 3),” on page 18 UEM (D200) -
PAMS Technical Documentation NSB-8 Troubleshooting Instructions J408 CBUSENX CBUS enable, see Figure 23, “J408: CBUSENX, UEM (D200 pin C8) -> UPP (D400 pin F3),” on page 23 UEM (D200) -> UPP (D400) J409 MBUSTX MBUS transmitted data, see Figure 24, “J409: MBUSTX (during flashing), UPP (D400 pin E3) -> UEM (D200 pin C6),” on page 23 (during flashing) UPP (D400) -> UEM (D200) J410 MBUSRX MBUS received data, see Figure 25, “J410: MBUSRX (during flashing), UEM (D200 pin D6) -> UPP (D400 pin D3),” on pa
NSB-8 Troubleshooting Instructions PAMS Technical Documentation J474 GND Ground point J480 JTMS UPP (D400) -> TESTPOINT J481 JTRst UPP (D400) -> TESTPOINT J482 JTDI UPP (D400) -> TESTPOINT J483 VCC Supply voltage from 1.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions X100 PIN 9 VIBRA Vibra control, see Figure 39, “X100 PIN 9: VIBRA, UEM (D200 pin G3) -> SYSTEM CONNECTOR (X100 pin 9),” on page 31 UEM (D200) -> SYSTEM CONNECTOR (X100) X100 PIN 10 MIC (-) Internal mic (-) SYSTEM CONNECTOR (X100) -> UEM (D200) X100 PIN 11 MIC (+) Internal mic (+) SYSTEM CONNECTOR (X100) -> UEM (D200) X101 PIN 1 VBAT Battery voltage BATTERY CONNECTOR (X101) -> VBAT X101 PIN 2 BTEMP Battery temperature BATTERY CON
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 5: C660: RFCLK (26 MHz), VCTCXO (G660 pin 3) -> HAGAR (N600 pin H1) Figure 6: J1: RESET, UPP (D400 pin D12) -> HAGAR (N600 pin E3) Page 14 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 7: J2: RFBUSDA, UPP (D400 pin F12) -> HAGAR (N600 pin E1) Figure 8: J3: RFBUSCLK, UPP (D400 pin G11) -> HAGAR (N600 pin E2) Issue 1 01/02 ãNokia Corporation Page 15
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 9: J3: RFBUSCLK (closer look), UPP (D400 pin G11) -> HAGAR (N600 pin E2) Figure 10: J4: RFBUSEN1, UPP (D400 pin G13) -> HAGAR (N600 pin D1) Page 16 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 11: J386: SIMDATA, UEM (D200 pin B2) <-> SIM CARD READER (X386 pin 4 Figure 12: J387: SIMRST, UEM (D200 pin A2) <-> SIM CARD READER (X386 pin 2) Issue 1 01/02 ãNokia Corporation Page 17
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 13: J388: SIMCLK, UEM (D200 pin B3) <-> SIM CARD READER (X386 pin 3) Figure 14: J396 PAD 2: FBUSTX (during flashing), UEM (D200 pin N5) -> SERVICE INTERFACE (J396 PAD 2) Page 18 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 15: J396 PAD 3 FBUSRX (during flashing), SERVICE INTERFACE (J396 PAD 3) -> UEM (D200 pin P5) Figure 16: J396 PAD 7: MBUS (during flashing), UEM (D200 pin M6) <-> SERVICE INTERFACE (J396 PAD 7) Issue 1 01/02 ãNokia Corporation Page 19
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 17: J402: PURX, UEM (D200 pin C10) -> UPP (D400 pin K2) Figure 18: J403: SLEEPX, UEM (D200 pin B11) -> UPP (D400 pin L1) Page 20 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 19: J404: SLEEPCLK, UEM (D200 pin D9) -> UPP (D400 pin H3) Figure 20: J405: UEMINT, UEM (D200 pin A10) -> UPP (D400 pin J2) Issue 1 01/02 ãNokia Corporation Page 21
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 21: J406: CBUSCLK, UEM (D200 pin A8) -> UPP (D400 pin G1) Figure 22: J407: CBUSDA, UEM (D200 pin B7) <-> UPP (D400 pin G2) Page 22 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 23: J408: CBUSENX, UEM (D200 pin C8) -> UPP (D400 pin F3) Figure 24: J409: MBUSTX (during flashing), UPP (D400 pin E3) -> UEM (D200 pin C6) Issue 1 01/02 ãNokia Corporation Page 23
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 25: J410: MBUSRX (during flashing), UEM (D200 pin D6) -> UPP (D400 pin D3) Figure 26: J411: FBUSTX (during flashing), UPP (D400 pin F1) -> UEM (D200 pin A7) Page 24 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 27: J412: FBUSRX (during flashing), UEM (D200 pin C7) -> UPP (D400 pin E4) Figure 28: J413: DBUSCLK, UEM (D200 pin D10) -> UPP (D400 pin K3) Issue 1 01/02 ãNokia Corporation Page 25
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 29: J414: DBUSDA, UEM (D200 pin A11) <-> UPP (D400 pin L3) Figure 30: J415: DBUSENX1, UEM (D200 pin B10) -> UPP (D400 pin J3) Page 26 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 31: J416: EXTWRX (during flashing), UPP (D400 pin N9) -> FLASH (D450 pin A6) Figure 32: J417: EXTRDX, UPP (D400 pin L7) -> FLASH (D450 pin C10) Issue 1 01/02 ãNokia Corporation Page 27
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 33: J419: FLSCLK, UPP (D400 pin N12) -> FLASH (D450 pin A4) Figure 34: J420: FLSCSX, UPP (D400 pin N6) -> FLASH (D450 pin B9) Page 28 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 35: J700: TXP, UPP (D400 pin D11) -> HAGAR (N600 pin D5) Figure 36: R301: PWRONX, POWER BUTTON (S300) -> UEM (D200 pin P7) Issue 1 01/02 ãNokia Corporation Page 29
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 37: R305: KLIGHT, UEM (D200 pin F3) -> BACKLIGHT CIRCUITRY (V300 pins 2,3,5 and V301 pins 2,5,6) Figure 38: R420: RFCLK (13 MHz), HAGAR (N600 pin E4) -> UPP (D400 pin M5) Page 30 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 39: X100 PIN 9: VIBRA, UEM (D200 pin G3) -> SYSTEM CONNECTOR (X100 pin 9) Figure 40: X300 PIN 1: XRES (startup), UPP (D400 pin A7) -> LCD CONNECTOR (X300 pin 1) Issue 1 01/02 ãNokia Corporation Page 31
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 41: X300 PIN 2: XCS, UPP (D400 pin C7) -> LCD CONNECTOR (X300 pin 2) Figure 42: X300 PIN 4: SDA, UPP (D400 pin B6) -> LCD CONNECTOR (X300 pin 4) Page 32 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 43: X300 PIN 5: SCLK, UPP (D400 pin C6) -> LCD CONNECTOR (X300 pin 5) Figure 44: X300 PIN 8: VOUT, LCD CONNECTOR (X300 PIN 8) -> C301 and C302 Issue 1 01/02 ãNokia Corporation Page 33
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 45: X303 PIN 2: KEYB_LIGHT, BACKLIGHT CIRCUITRY (V300 pin 6) -> UI CONNECTOR (X303 pin 2) Troubleshooting steps The following hints should help to find the cause of the problem when the circuitry seems to be faulty. This trouble shooting instruction is divided into sections.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions General instructions Most semiconductors are static discharge sensitive! ESD protection must be taken care of during repair (ground straps and ESD soldering irons). HAGAR, PA, UEM, UPP, and Flash are moisture sensitive and must be pre-baked prior to soldering, if they have been out of their vacuum package longer than the specified time. • Connect test jig to computer with DAU-9S cable or to FPS-8 Flash Prommer with AXS-4 serial cable.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 46: Troubleshooting: Top TOP Phone totally dead Yes Phone is dead Yes Flash faults Yes Phone is jammed No Flash programming doesn´t work No Phone doesn´t start up or the phone is jammed No Charging doesn´t work Yes Charger No TOP 2 Page 36 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation TOP 2 Phone doesn´t read SIM card Yes SIM card Yes Audio faults Yes Display faults Yes Keypad faults No Audio faults No Display or LEDs don´t work No Keypad doesn´t work No END Issue 1 01/02 ãNokia Corporation Page 37
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 47: Phone is dead Phone is dead Phone current is zero? Check X101 solder and VBAT lines. Yes No Phone current is < 50 mA? Yes No Is phone flash programming OK? Yes Phone is jammed No Flash faults Phone current is ~ 54 mA? No Yes Is phone in LOCAL mode? Yes No Check BSI line, X101, C241, R203, C109, and R202.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 48: Flash Faults Flash faults The phone does not set Flashbus TXD line high after the startup? Yes No Measure BSI pulse during Flash programming. Is it OK? Check BSI line X101, C241, R203, C109, and R202. Yes Measure FBUSTX line during Flash programming from testpoint J411. Is it high (1.8 V)? Yes The phone does not set Flashbus TXD line low after the line has been high? No No Check R102 If OK -> change UEM.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Flash faults page 2 Wrong manufacturer ID and device ID? Yes Change Flash Yes Phone is dead Yes Phone is jammed No Is the phone totally dead? No Phone doesn´t start up or the phone is jammed? No Retest Page 40 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 49: Phone is jammed Phone is jammed Measure VIO, VCORE, FLASH1, VANA, and VR3 voltages. Are they OK? No Check VBATT1-6, VIO, VCORE, FLASH1, VANA, and VR3 lines. Are they OK? No Check BSI / BTEMP lines. If OK -> UEM regulators are not working. Change UEM Yes Yes Measure 32.768 kHz SLEEPCLK from testpoint J404. Is it OK? No Measure 32.768 kHz SLEEPCLK from B200.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Jammed Page 2 Phone shuts down after 30 s? Yes Measure watchdog signal CBUSDA from testpoint J414. Is it OK? No Change UPP No Measure DBUSCLK 1 MHz signal from testpoint J413 Is it OK? No Yes Read phone information with Phoenix. Is it OK? Yes Retest. Is it OK? No Measure FBUSRX signal during phone info reading from testpoint J412. Is it OK? No Change UEM Yes Measure FBUSTX signal during phone info read from testpoint J411.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 50: Charging Faults Connect (ACP-7) charger. Charger Battery bars don`t work (scroll)? No Retest Yes Measure voltage over V100 (TVS). Is it > 3.0 Vdc? Check X100, V100, C103, C100, F100, L100, and line. No Yes Read BTEMP value. Compare it to ambient temperature. Is it ~ 25ْC (0319)? Check X101,C109 R202, C240, R203, and line. No Yes Remove F100 (fuse) and measure current. Is it ~ 350...
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 51: SIM Card SIM card Insert SIM card faults? No Yes Set phone in LOCAL mode. Is it OK? No Check BSI line, X101, C241, R203, C109, and R202. If OK -> change UEM. Yes Check X386 Measure VSIM voltage from X386 Is it 3 V? No Check VSIM line, X386, C203, and C389. If OK -> change R388. If still wrong VSIM voltage -> change UEM. Yes Check SIM power UP sequence. Is it OK? No Check SIM lines. If OK -> change R388.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 52: Audio Faults Audio faults No Is earpiece working? Yes Change earpiece. Is it working now? Yes Retest No Set phone in LOCAL mode. Use Phoenix Audio Test. Set EXT IN, HP OUT, LOOP ON. Measure DC offset voltage from earpiece pads. Is it ~ 1.38 V? No Check L151, C160, R164, and line. If OK -> change UEM. Yes Measure MICB2 voltage from XMICP pads (L106). Is it ~ 2.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Earpiece 2 Connect EXT audio signal 1 kHz (sine) (200 mVp-p) to XMICP pads and ground to XMICN. Measure sine signal from earpiece pads. Is it ~ 880 mVp-p? Yes No Measure sine signal from UEM (R156). Is it ~ 130 mVp-p? Change UEM No Check R156, C153, C155, R166, R167, C163, R161, and line.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Audio faults 2 Is microphone working? Yes No Try change bottom connector X100. Is it working now? Yes Retest No Set phone in LOCAL mode. Use Phoenix Audio Test. Set HP IN, EXT OUT, LOOP ON. Measure MICB1 No voltage from MICP pads. Is it ~ 2.1 V? Check L105, C105, C152, C156, R152, C168, C166, C215, and line. If OK -> change UEM. Yes Check C151, R157, C105, C154, and line. If OK -> change UEM.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Audio faults 3 Is buzzer (B301) working? Yes No Measure VBAT voltage from B301. Is it OK? No Check VBAT line. Yes Set phone in LOCAL mode. Use Phoenix Audio Test. Set buzzer frequency 3100 Hz and strength e.g. 5. Then set volume on. Measure buzzer control signal from (C307). Is it 3.1 kHz pulses? Yes Change buzzer (B301). No Check C306, C307, C308, and line. If OK -> change UEM.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 53: Display faults Display faults Set phone into LOCAL mode. Start Display Test with Phoenix. Change UI-module Is it working now? Are the UI-module LEDs turned on? No Yes Retest No Check X303 Yes Measure signal from V300 pin or R306. Is it LOW? Yes Check X303 No Check R306 if OK. Measure VBAT from V300 pin 4. Is it OK? No Yes Measure LEDs’ control signal KLIGHT from R305 (UEM side).
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Display faults 2 Are the display LEDs turned on? Yes No Measure signal from V301 pin 3. Is it LOW? Yes Check LEDs and line. No Measure VBAT from V301 pin 4. Is it OK? No Check control signal line. If OK -> change UEM. Yes Measure LEDs’ control signal KLIGHT from R305 (UEM side). Is it LOW? Check R307 and VBAT line. No Check R305, V301, V329, and line.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Display faults 3 Change UI module. Is it working now? Yes Retest No Does the display start? No Yes Check X300 Measure VDD (2.78 V) and VDDI (1.8 V). Are they OK? No Check C303 and lines. If OK -> change UEM. Yes Measure VOUT voltage. Is it ~ 8.1 V? No Check C302, X300, and lines. Yes Measure XRES and XCS. Are they ~ 1.8 V? No Check X300 and lines. If OK -> change UPP.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 54: Keypad Faults Keypad faults Is the power key (S300) working? No Measure voltage from S300. Is it high? Yes Check R301, C312, S300, and line. If OK -> change UEM. No Yes Measure voltage from S300 when it is pressed. Is it high? Yes No Check S300.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Keypad faults 2 Change UI-module. Are the keys working now? Are UI-module keys working? No Yes Retest No Check X303 Yes Measure ROW0, ROW1, ROW2, ROW3, and ROW4 lines from X303. Are they ~ 1.8 V? No Check ROW0-4 lines and X303. If OK -> change Z301. If still fail -> change UPP. Yes Measure SLEEPX signal from J403 when key is pressed. Is it ~ 1.8 V? No Check ROW0-4 lines and X303. If OK -> change Z301. If still fail -> change UPP.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Keypad faults 3 Is volume UP key working? No Measure ROW0 line from S301. Is it ~ 1.8 V? Yes No Check S301, S302, and lines. If OK -> change Z301. If still fail -> change UPP. Yes Measure COL1 from S301 when S301 is pressed. Is there a 50 us pulse? No Check S301 and COL1 line. If OK -> change Z301. If still fail -> change UPP. Yes Change UPP Is volume DOWN key working? Yes END No Measure ROW0 line from S302. Is it ~ 1.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions RF Troubleshooting Phone Settings for TX Troubleshooting TX – burst mode Channel 661 PCL 10 Phone Settings for RX Troubleshhoting RX – continous mode Traffic channel 661 AGC value 5 + signal generator feeds –55 dBm to antenna pad Issue 1 01/02 ãNokia Corporation Page 55
NSB-8 Troubleshooting Instructions PAMS Technical Documentation NO TX GSM 1900 8 Check 26MHz VCTCXO G660 at (test point) TP20. (frequency deviation <100Hz) Check also TP3 2.8VDC. 9 Check TX IQ signals at TP21. If not OK change UEM. 10 Check 1880MHz CH661 at TP22 if OK go to 8. 11 Check supply voltages for HAGAR at TP 4, 5, 6, 8: 2.8VDC; TP10 1.35VDC and TP1 4.8VDC if not OK change UEM. 12 Check SDATA at TP51, SCLK TP53, SLE TP52.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Measurements points for AMS and production repair TX Troubleshooting points Figure 55: TP 20 Figure 56: TP 21 Issue 1 01/02 ãNokia Corporation Page 57
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 57: TP 22 Figure 58: TP 51, 52, 53 Page 58 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 59: TP 23, 24 Figure 60: TP 40 Issue 1 01/02 ãNokia Corporation Page 59
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 61: TP 25, 28 Figure 62: TP 26, 27 Page 60 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 63: TP 30 Figure 64: TP 29 Issue 1 01/02 ãNokia Corporation Page 61
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 65: TP 20 Page 62 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation RX Troubleshooting points Figure 66: TP 20 Figure 67: TP 31, 32 Issue 1 01/02 ãNokia Corporation Page 63
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 68: TP 33 Figure 69: TP 36 Page 64 ãNokia Corporation Issue 1 01/02
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Figure 70: TP 37 (RX continuous mode) Figure 71: TP 37 (RX burst mode) Issue 1 01/02 ãNokia Corporation Page 65
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 72: TP 51, 52, 53 Figure 73: TP 40 Page 66 ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation RF Tuning and Calibration Instructions Phoenix is used to control the phone. TX tunings When changing any TX components, all TX tunings need to be done.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation tion from FILE - Manage Connections -menu. 3 Then change the operating mode to Local. 4 Page 68 Select Tuning from Maintenance –menu and choose TX power level tuning.
PAMS Technical Documentation 5 NSB-8 Troubleshooting Instructions Press Start and load tuning values from Permanent memory. 6 Adjust tuning values. Note: It is only necessary to adjust Base (-30dBm), PCL 15, 11 and 0. After that it is possible to use Calculate coefficients –function to linearize other values. Tuning target of 29.5 dBm, for PCL 0, is aimed for phone without mechanics when tuning in service jig. Mechanics are increasing TX power level about 0.5 dBm.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation TX Power Tuning targets and limits: Power level RF Power at antenna pad 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Base Test 7 29.5 dBm 28.0 dBm 26.0 dBm 24.0 dBm 22.0 dBm 20.0 dBm 18.0 dBm 16.0 dBm 14.0 dBm 12.0 dBm 10.0 dBm 8.0 dBm 6.5 dBm 5.0 dBm 3.5 dBm 2.0 dBm -30 dBm Tuning target tolerance +/- 0.1 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.5 dBm +/- 0.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions 1 Select Tuning from Maintenance –menu bar and choose TX IQ Tuning. 2 Load tuning values from Product and Start –tuning.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation All 1’). 3 Choose Save to Product and Stop tuning. --> Close Tx IQ Tuning window. RX tunings When changing any RX components, all RX tunings need to be done.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions • Signal generator with AM-Modulation • Computer with Phoenix -software Channel select filter calibration 1 Choose product and initialize connection as in TX output power tuning procedure (Steps 1 and 2) 2 Select Tuning from Maintenance –menu bar and choose RX Channel Select filter Calibration. 3 Load tuning values from phone. 4 Use Auto Tune to calibrate Channel Select filter.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation After tuning, select Stop and save the values onto the phone. 5 Close the Rx Channel Select Filter Calibration window. RX tuning GSM1900 Page 74 1 Select Tuning from Maintenance –menu bar and choose RX Calibration. 2 Start Manual tuning with PM Setting.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions 3 Choose Calibrate and adjust signal generator accordingly. 4 Stop and Save new calibration values to phone. --> Close Rx Calibration window.
NSB-8 Troubleshooting Instructions RSSI 0 RSSI 2 RSSI 3 RSSI 4 RSSI 4 RSSI 5 RSSI 6 RSSI 7 RSSI 8 Check AFC_slope Check AFC_value PAMS Technical Documentation 60 70 80 90 100 110 120 130 140 0 -500 70 80 90 100 110 120 130 140 150 1000 500 AM suppression tuning Page 76 1 Select Tuning from Maintenance –menu bar and choose RX Am Suppression. 2 Start tuning with PM settings.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation 3 Adjust signal generator accordingly and Tune. 4 Stop and save values to phone. --> Close Rx Am Suppression window.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation RF Service Tools MJS-46 Module Jig All RF tunings should be performed in MJS-46 Jig. When using Test Jig MJS-46, the reference level attenuation is 0.1 dB + cable loss. JVB-1 Docking Station, MJF-6 Adapter and coupler CPL-6 The reference level attenuation for Docking Station JBV-1 + MJF-6 adapter with antenna coupler CPL-6 is approximately 4 dB +cable loss.
PAMS Technical Documentation NSB-8 Troubleshooting Instructions Table 2: TX Output Power Tolerances PCL Target (dBm) Tolerance (dBm) 0 29.5 +/-3 1 28 +/-3 2 26 +/-3 3 24 +/-3 4 22 +/-3 5 20 +/-3 6 18 +/-3 7 16 +/-3 8 14 +/-4 9 12 +/-4 10 10 +/-4 11 8 +/-4 12 6.5 +/-4 13 5 +/-4 14 3.
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 74: Power 30 dBm Power 30 dBm 31 30 Power(dBm) 29 28 27 26 25 24 512 562 612 662 712 762 812 Channel AMS-Box Coupler Figure 75: Phase error RMS P h a s e e rro r RM S Phase error(deg) 5 4 3 2 512 562 612 662 712 762 C h an n e l B ox Page 80 C oupler ãNokia Corporation Issue 1 01/02
NSB-8 Troubleshooting Instructions PAMS Technical Documentation Figure 76: Signal Strength Reading -8 2 512 562 612 662 712 762 812 -8 2 ,5 -8 3 Reading (dBm) -8 3 ,5 -8 4 -8 4 ,5 -8 5 -8 5 ,5 -8 6 C hannel A M S -B o x C o up le r Figure 77: BER(-102 dBm) B E R(-1 0 2 d B m ) 1 0,8 BER% 0,6 0,4 0,2 0 512 562 612 662 712 762 C hannne l B ox C oupler When using JXS-1 shield box different RF attenuations have to be used.
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