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Nokia NHL-2NA Series Troubleshooting Instructions

Nokia NHL-2NA Series Troubleshooting Instructions

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CCS Technical Documentation
NHL-2NA Series Transceiver
Troubleshooting Instructions
Copyright ¤Nokia. All rights reserved
Issue 1 07/02

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  • Page 1 CCS Technical Documentation NHL-2NA Series Transceiver Troubleshooting Instructions Copyright ¤Nokia. All rights reserved Issue 1 07/02...
  • Page 2 NHL-2NA Troubleshooting Instructions CCS Technical Documentation [This page left intentionally blank] Page 2 Copyright ¤Nokia. All rights reserved. Issue 1 07/02...

  • Page 3: Table Of Contents

    "Insert SIM Card" in device display allthough card is inserted ......41 Audio .........................42 Microphone ......................42 Earpiece........................43 IHF .......................... 44 Accessory detection troubleshooting ..............45 Memory troubleshooting ...................46 Baseband serial interface troubleshooting ..............47 CBUS ........................47 Issue 1 07/02 ¤Nokia Corporation Page 1...
  • Page 4 RX Channel Select Filter Calibration..............23 RX Calibration ......................24 RX Band Filter Response Compensation ..............28 RX AM Suppression ....................33 Transmitter Tunings ....................36 TX I/Q Tuning......................36 TX Power Level Tuning..................38 Appendix........................43 Frequency mappings ....................43 Page 2 ¤Nokia Corporation Issue 1 07/02...
  • Page 5 Possible faults in image quality................. 9 Testing for dust......................9 Testing for sharpness....................10 Bit errors........................14 Fault finding trees ......................15 Hardware failure message ..................15 No recognizable viewfinder image ................ 17 Bad image quality....................18 Issue 1 07/02 ¤Nokia Corporation Page 3...
  • Page 6 NHL-2NA CCS Technical Documentation Page 4 ¤Nokia Corporation Issue 1 07/02...

  • Page 7: Baseband Troubleshooting

    • Check baseband selftests with Phoenix if “CONTACT THE RETAILER.” is shown on the display. • Check visually display and rocker faults • Force phone to LOCAL mode and make keyboard test by phoenix Issue 1 07/02 ¤Nokia Corporation Page 1...

  • Page 8: Nominal Current Consumption

    NOTE! if some ASIC is changed see chapter Bluetooth troubleshooting Nominal current consumption NOTE: Service tools need some amount of current to work. (FLA-21: 1-2mA and MJF-9Q: 2-6mA Page 2 ¤Nokia Corporation Issue 1 07/02...
  • Page 9 Measurements have been made with a current probe connected to an oscilloscope. Operating mode Current consumption Idle (BT off) 4-8 mA 2w audio call (backlights off) channel37 300-340mA Viewfinder + nominal backlights 232mA Issue 1 07/02 ¤Nokia Corporation Page 3...

  • Page 10: Troubleshooting Paths

    NHL-2NA CCS Technical Documentation Troubleshooting paths Dead or jammed device Page 4 ¤Nokia Corporation Issue 1 07/02...

  • Page 11: Partially Damaged Device

    If the sensor/sensors are out of order description of symptoms can be like below: “IHF is not disabled automatically when phone is put near ear” “IHF cannot be enabled” “Backlight is always ON or OFF” “Backlight of display does not go OFF” Issue 1 07/02 ¤Nokia Corporation Page 5...

  • Page 12: Contact The Retailer" On Display

    ”Grip keypad is not working” ”Vibra is not working or is noisy etc.” See grip- module troubleshooting. Contact the retailer” on display “Contact the retailer.” on display (Self-tests by Phoenix) Display information: “Contact the retailer” Page 6 ¤Nokia Corporation Issue 1 07/02...
  • Page 13 PC connected. These tests and the items included are as follows: Figure 1: BB selftest-tool If a selftest fails, see relevant chapter in this troubleshooting manual. Issue 1 07/02 ¤Nokia Corporation Page 7...

  • Page 14: Lg4 Baseband Hw Subarea Troubleshooting

    TXD line low after the startup" Change Measure I_FBUS_TX(J121) line during flash programming is it 1.8V? "Secondary Change UPP receive fail" or "Algorithm send failed" message? Change UPP_WD2 Memory faults page Page 8 ¤Nokia Corporation Issue 1 07/02...
  • Page 15 C595 -> still not ok message? -> change BT module Check flash0 bypass caps, check "Flash informs Vpp connection to flasher, Check about a failure" Vpp resistor(4.7k) during flashing Ok->Change flash0 Retest Issue 1 07/02 ¤Nokia Corporation Page 9...

  • Page 16: Energy Management Troubleshooting

    Check varistors, EMI-filter and filtering capacitors, which are located to BSI and Btemp lines. General power checking Use service tool FLA-21. Battery voltage should be atleast 3.6V. After phone disassembly, use module jig MJS-9Q. Page 10 ¤Nokia Corporation Issue 1 07/02...
  • Page 17 NHL-2NA CCS Technical Documentation Issue 1 07/02 ¤Nokia Corporation Page 11...

  • Page 18: Smps Of Aem Troubleshooting

    NHL-2NA CCS Technical Documentation SMPS of AEM troubleshooting Page 12 ¤Nokia Corporation Issue 1 07/02...

  • Page 19: Power Key Troubleshooting

    NHL-2NA CCS Technical Documentation Power key troubleshooting Issue 1 07/02 ¤Nokia Corporation Page 13...

  • Page 20: Clocks Troubleshooting

    Make sure that the device is not in sleep during RF clock measuring. IMPORTANT: Clock signals have to be measured with 1M Ω (or greater) probes! Page 14 ¤Nokia Corporation Issue 1 07/02...
  • Page 21 2 Check 13Mhz Rfclk from testpoint J100. See figure below. Offset should be about 900mV. If the offset does not exist something is broken inside UPP_WD2 or DC-filtering capacitor in series on trace. Figure 3: 13 MHz clock Issue 1 07/02 ¤Nokia Corporation Page 15...
  • Page 22 3 Check is the crystal oscillator (B190) oscillating at 32.768kHz frequency. If not change B190. If OK measure sleepclk from testpoint J101. Frequency should be the same 32.678kHz (see figure below.) If not change UEM. Page 16 ¤Nokia Corporation Issue 1 07/02...

  • Page 23: Charging Checking

    Voltage should be between 5.5V - 9.3V and current between 200mA – 850mA Remove and reconnect battery and charger few times before you start to measure device. This check ensures that the fault really exists. Issue 1 07/02 ¤Nokia Corporation Page 17...
  • Page 24 NHL-2NA CCS Technical Documentation Page 18 ¤Nokia Corporation Issue 1 07/02...
  • Page 25 NHL-2NA CCS Technical Documentation Issue 1 07/02 ¤Nokia Corporation Page 19...

  • Page 26: Energy Management Calibration

    (R190), if calibration is not still successful change UEM. Calibration can be checked using ADC-redings. Known voltages, currents and resistances are fed and read by ADC-readings, read values and known values can be compared. Page 20 ¤Nokia Corporation Issue 1 07/02...

  • Page 27: Adc-Reading

    The same syptom 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: Backup battery is charged only the same time with main battery charging. Or when the device is LOCAL or TEST mode. Issue 1 07/02 ¤Nokia Corporation Page 21...
  • Page 28 4 Measure voltage of backup battery during charging, It should arise if it is not 3.2V, yet. 5 When the voltage is over 2.0V for sure, check backup battery with Phoenix. -> If not OK then D190 is faulty. 6 Ensure that the RTC is running. Page 22 ¤Nokia Corporation Issue 1 07/02...

  • Page 29: Ir Interface

    NHL-2NA CCS Technical Documentation IR interface Issue 1 07/02 ¤Nokia Corporation Page 23...
  • Page 30 11. Looking for shortcircuits in capacitors C360-C363 12. Check lines 3, 4 and 5 in IR module with oscilloscope during IR selftest, there should be series of pulses. Again check first pads and then pins. 13. Beyond economical repair Page 24 ¤Nokia Corporation Issue 1 07/02...

  • Page 31: Sensors Troubleshooting

    This document is ment to be used only in troubleshooting and does not provide informa- tion on basic functionality of the systems. Basic operating principle can be found in chapter “System Module LG4 and Grip Module LS4”, calibration instructions can be found in chapter “Service Software Instructions”. Issue 1 07/02 ¤Nokia Corporation Page 25...

  • Page 32: Proximity Detector

    4R3 (R347), receiver (photodiode BPW34FS, V335, 486J830) and a control block, which is located on AEM ASIC (N226). Three external capacitors are part of the control block: 100n (C275) and 220p (C273 and C274). Page 26 ¤Nokia Corporation Issue 1 07/02...

  • Page 33: Handsfree Shuts Down Automaticallly In Sunshine

    SW response is one of the 13 messages that are explained in the next chapter. Successful gain and detect threshold calibration tells that optoelectrical components are OK. Note! Values in this picture might change. Figure 6: Proximity Sensor Calibration tool Issue 1 07/02 ¤Nokia Corporation Page 27...

  • Page 34: Troubleshooting With Pd Calibration Results

    FAULT INT FAIL (0x09) This error occurs, if self-monitoring signal is too small to exceed any fault threshold (when offset is added). This error occurs also if there is a detection during fault threshold calibration. Page 28 ¤Nokia Corporation Issue 1 07/02...
  • Page 35 Gain value has reached its maximum limit, and there are no detections. This means, that path from tx to rx is broken. Most probable is, that the failure is on the LG4. Figure 5 GAIN MAX LIMIT FAIL troubleshooting presents troubleshooting diagram for this failure. Issue 1 07/02 ¤Nokia Corporation Page 29...
  • Page 36 1 PD TX line: RSENSE R347 is connected to GND and IRED V334 to Vbatt RX line: photodiode V335 is connected to GND. See figure 5. 2 If there is no obvious fault, replace first V335, then V334. Try calibration in the MJS-9Q in between. Page 30 ¤Nokia Corporation Issue 1 07/02...
  • Page 37 Reassemble the phone, replace proximity rubber error message and optcs if needed Save calibrated values If you have checked to the phone mechanics, RSENSE and AEM the phone is beond economical repair Issue 1 07/02 ¤Nokia Corporation Page 31...

  • Page 38: Ambient Light Detector

    This can be checked easily, because light sensor can be turned off. Calibration of the Ambient Light Detector is needed always, when the phototransistor is replaced. Calibration system is described in chapter “Service Software Instructions”. Figure 9: Ambient light detector calibration tool Page 32 ¤Nokia Corporation Issue 1 07/02...

  • Page 39: Ambient Light Detector

    22kΩ (R131) and UEM (D190) ADC. There is also an NTC-resistor 47kΩ (R132, 1820037), which is used for temperature compensation. Temperature compensation is done by SW. Figure 10: Ambient Light Sensor components V130 (collector) R132 R131 V130 (emitter) Issue 1 07/02 ¤Nokia Corporation Page 33...

  • Page 40: Problems From The User Point Of View

    ALD circuitry is working right value? Are ADC- If this does not help, the readings problem is beond economical Replace UEM repair. Reassemble the phone Is ALD mechanics Replace A-cover Calibrate the light sensor Page 34 ¤Nokia Corporation Issue 1 07/02...
  • Page 41 4 NTC ( R132) resistance at room temperature is ~47kΩ. 5 Check following points: is opening on the black paint in the A-cover covered; is light guide (integrated in the A-cover) broken? Issue 1 07/02 ¤Nokia Corporation Page 35...
  • Page 42 Calibrate the light readind phone to MJS-9Q and NTC resistor (4) sensor. around the right value? Calibrate the light sensor. Is the functionality Problemis beyond economical repair Select default setting for the light sensor. Page 36 ¤Nokia Corporation Issue 1 07/02...
  • Page 43 (from ~5kΩ in high illuminance to ~500kΩ in total darkness). If pho- totransistor has to be replaced, the detector has to be calibrated. Calibration can be done only with TDS-11 light source. 4 NTC ( R132) resistance at room temperature is ~47kΩ. Issue 1 07/02 ¤Nokia Corporation Page 37...

  • Page 44: Sim Card

    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. Page 38 ¤Nokia Corporation Issue 1 07/02...
  • Page 45 CCS Technical Documentation Figure 14: SIM Power Up. Ch1 Vsim Ch2 Reset Ch3 Clock Ch4 I/O Measured with 3Vsim Figure 15: SIM answer to reset -Ch1 Vsim -Ch2 sim_data –Ch3 sim_clk –Ch4 sim_reset Issue 1 07/02 ¤Nokia Corporation Page 39...
  • Page 46 NHL-2NA CCS Technical Documentation Figure 16: SIM Clk 3.25MHz Page 40 ¤Nokia Corporation Issue 1 07/02...

  • Page 47: Insert Sim Card" In Device Display Allthough Card Is Inserted

    Check Vsim resistance to gnd (no power) if low -> Check SIM measure C470 -> if ok power up change R470 -> still not sequence ok -> change UEM Is it ok? Issue 1 07/02 ¤Nokia Corporation Page 41...

  • Page 48: Audio

    NHL-2NA CCS Technical Documentation Audio Microphone Page 42 ¤Nokia Corporation Issue 1 07/02...

  • Page 49: Earpiece

    NHL-2NA CCS Technical Documentation Earpiece Check that holes are not covered. Issue 1 07/02 ¤Nokia Corporation Page 43...

  • Page 50: Ihf

    Proximity sensor disables IHF if phone is too near some object. It is pos- sible if the proximity sensor is faulty IHF can not be enabled even if it is working fine. Page 44 ¤Nokia Corporation Issue 1 07/02...

  • Page 51: Accessory Detection Troubleshooting

    NHL-2NA CCS Technical Documentation Accessory detection troubleshooting Issue 1 07/02 ¤Nokia Corporation Page 45...

  • Page 52: Memory Troubleshooting

    Phoenix window during flashing if flash1 is failing. Id's are however displayed on the Phoenix window and successful read of flash1 id's can be checked from there. One good way to test flash1 functionality is to format it(from Phoenix). Page 46 ¤Nokia Corporation Issue 1 07/02...

  • Page 53: Baseband Serial Interface Troubleshooting

    If the interface is faulty from the UPP WD2's end the phone will not boot properly as powering configurations do not work. Traffic on the bus can be monitored from three pins on the BT module. Pins are shown below. Figure 17: CBUS measuring points CBusClk CBusDa CBusEnx Issue 1 07/02 ¤Nokia Corporation Page 47...
  • Page 54 • 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 abowe components you should replace or re-solder the failing component. Page 48 ¤Nokia Corporation Issue 1 07/02...

  • Page 55: Fbus

    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 PHOE- NIX (ST_MBUS_RX_TX_LOOP_TEST). Flashing is not possible if there is a problem in MBUS. Issue 1 07/02 ¤Nokia Corporation Page 49...

  • Page 56: Hall Sensor Troubleshooting

    ~2.78V in pin 1. Pin 3 should be down when magnet is not above the component. ~1.8V when magnet is above Change the N380 to a new one and retest. Hall sensor works Page 50 ¤Nokia Corporation Issue 1 07/02...

  • Page 57: Display Backlights Troubleshooting

    NHL-2NA CCS Technical Documentation Display backlights troubleshooting Issue 1 07/02 ¤Nokia Corporation Page 51...

  • Page 58: Bluetooth Troubleshooting

    FPS-8 errors? Go to Calypso's 'Flashing' Troubleshooting Section Does the phone's main SW flash correctly? 1) Replace Does the BT BT MCM SW flash 2) Attempt to correctly? Flash Phone BT Flashing OK! Page 52 ¤Nokia Corporation Issue 1 07/02...
  • Page 59 Is BER < = BT Failure 0.1%? Part III Re-Flash phone Re-solder using option BT MCM BT ONLY BT OK! Can you make Go to a connection to BT Failure BT Box? Part III Issue 1 07/02 ¤Nokia Corporation Page 53...
  • Page 60 Can you make BT MCM Is BER < = a connection to 2) Flash Phone 0.1%? BT Box? using 'BT ONLY' 1) Replace BT MCM 2) Flash Phone BT OK! using 'BT ONLY' Page 54 ¤Nokia Corporation Issue 1 07/02...

  • Page 61: Needed Actions If Asic Is Changed

    Flash0 changed IMEI has to be reprogrammed. Has to be flashed (naturally). IMEI has to be rebuilt to the phone. RF component changed If any RF component changed, RF calibration(tuning) has to be done. Issue 1 07/02 ¤Nokia Corporation Page 55...

  • Page 62: Test Points And Pin Orders

    Rxid J120 Rxqd J104 UEMint J105 AEMSleep J110 DSPVcc J106 SDRda0 J107 SDRad0 J108 SDRclk J109 FLDa0 J111 FLXS1x J113 FLCS0x J114 FLOEX J115 FLClk J121 I_FBUS_TX J381 Vbatt J270 GenVbattIO J262 Refen Page 56 ¤Nokia Corporation Issue 1 07/02...
  • Page 63 NHL-2NA CCS Technical Documentation Issue 1 07/02 ¤Nokia Corporation Page 57...

  • Page 64: Connectors Pin Order

    Data to read Rocker3 mOhm Rocker2 mOhm System ground Rocker5 mOhm Rocker4 mOhm Rocker1 mOhm LED, positive terminal LED, negative terminal Row1 Tracking resistance Drive current Row0 Tracking resistance Drive current Drive current Page 58 ¤Nokia Corporation Issue 1 07/02...
  • Page 65 System ground RESX Reset (active low) Data to write Data to read Data to write Data to read Data to write Data to read System ground L: read (active low) L: Write (active low) Issue 1 07/02 ¤Nokia Corporation Page 59...

  • Page 66: Board To Board Connector

    NHL-2NA CCS Technical Documentation Board to board connector See System Module LG4 and Grip Module LS4”. Pin order of spring connectors Page 60 ¤Nokia Corporation Issue 1 07/02...

  • Page 67: Rf Troubleshooting

    Please be aware that all measured voltages or RF levels in this document are rough figures. Especially RF levels varies due to different measuring equipment or different grounding of the used probe. All tuning must be done with Phoenix Service Software, version 02.90.001, or later. Issue 1 07/02 ¤Nokia Corporation Page 1...

  • Page 68: Rf Key Component Placement

    NHL-2NA CCS Technical Documentation RF Key component placement Page 2 ¤Nokia Corporation Issue 1 07/02...

  • Page 69: Fault Finding Test Point Locations

    900 T X BALUN i/p 1800 LNAB_P VrefRF02 RFBusClk VCT CXO o/p T XQ T XI 1800 T X FILTi/p T XC 900 P A BIAS RFBusData Reset 900 P A i/p 1800 P A BIAS RFBusEna1 Issue 1 07/02 ¤Nokia Corporation Page 3...

  • Page 70: Receiver

    (1) the gain is 6dB and if g10 is low (0) the gain of the stage is -4dB. The active channel filters in HAGAR provide selectivity for channels (-3dB @ ± 91 kHz typ.). The integrated Page 4 ¤Nokia Corporation Issue 1 07/02...

  • Page 71: E-Gsm900

    From 'Toolbar' set operating mode to Local Maintenance → Testing → RF Controls Select band 'GSM900' Set Active unit to 'Rx' Set Operation mode to 'Continuous' Set AGC to '8:FEG ON +46 dB' Set Rx/Tx channel to 37 Issue 1 07/02 ¤Nokia Corporation Page 5...
  • Page 72 NHL-2NA CCS Technical Documentation Page 6 ¤Nokia Corporation Issue 1 07/02...
  • Page 73 Reading value is Spectrumanalyzer Synthesizer represented without +26 VCO o/p troubleshooting dB compensation. 3769.6MHz ∼-37 dBm (* * Spectrumanalyzer reading with 1 kohm Check Hagar passive probe (right N505 value add +26 dB) Issue 1 07/02 ¤Nokia Corporation Page 7...

  • Page 74: Gsm1800

    From 'Toolbar' set operating mode to Local Maintenance → Testing → RF Controls Select band 'PCN' Set Active unit to 'Rx' Set Operation mode to 'Continuous' Set AGC to '8:FEG ON +46 dB' Set Rx/Tx channel to 700 Page 8 ¤Nokia Corporation Issue 1 07/02...
  • Page 75 Reading value is Spectrumanalyzer Synthesizer represented without +26 VCO o/p troubleshooting dB compensation. 3685.6MHz ∼-33 dBm (* * Spectrumanalyzer reading with 1 kohm Check Hagar passive probe (right N505 value add +26 dB) Issue 1 07/02 ¤Nokia Corporation Page 9...

  • Page 76: Picture Of Rx Signal

    NHL-2NA CCS Technical Documentation Picture of RX signal Figure 1: Example of RX_I (or RX_Q) signal at –90dBm signal level Page 10 ¤Nokia Corporation Issue 1 07/02...

  • Page 77: Transmitter

    ) in the GSM1800 band assuming a 50 W output. The gain control range is over 45 dB to achieve the desired power levels and power ramp/decay performance. Harmonics generated by the nonlinear PA are filtered out with filtering inside the antenna switch -module. Issue 1 07/02 ¤Nokia Corporation Page 11...

  • Page 78: E-Gsm900

    Select band 'GSM900' Set Active unit to 'Tx' Set Operation mode to 'Burst' Set TX data type to 'Random' Set Rx/Tx channel to 37 Set Tx PA mode to 'Free' Set power level to 5 Page 12 ¤Nokia Corporation Issue 1 07/02...

  • Page 79: Gsm1800

    Select band 'PCN' Set Active unit to 'Tx' Set Operation mode to 'Burst' Set TX data type to 'Random' Set Rx/Tx channel to 700 Set Tx PA mode to 'Free' Set power level to 0 Issue 1 07/02 ¤Nokia Corporation Page 13...

  • Page 80: Fault Finding Tree

    600(PCN 1800) values Lowest level 170 Base level 150 Major differences? Check with oscilloscope Check power control 900 & 1800 PA CONTROL Replace HAGAR loop components >2.4V peak Replace faulty PA&ant.switch troubleshooting components Page 14 ¤Nokia Corporation Issue 1 07/02...

  • Page 81: Example Of Tx Signals

    NHL-2NA CCS Technical Documentation Example of TX signals Figure 4: Example of TXI signal Figure 5: Example of TXQ signal Figure 6: Example of VC2 signal Issue 1 07/02 ¤Nokia Corporation Page 15...
  • Page 82 Figure 9: Example of 900 TX burst from antenna connector RBW 100 kHz VBW 100 kHz 40 dBm 35 dB SWT 2 s Offset 13 dB 1 AP CLRWR Center 897.4 MHz 200 kHz/ Span 2 MHz Date: 17.JUN.2002 09:58:28 Page 16 ¤Nokia Corporation Issue 1 07/02...

  • Page 83: Common

    NHL-2NA CCS Technical Documentation Common Antenna switch control logic (reference Z672) 900 TX HIGH 1800 TX HIGH VCTCXO (reference G591) Figure 10: Example of VCTCXO o/p signal Issue 1 07/02 ¤Nokia Corporation Page 17...

  • Page 84: Frequency Synthesizer

    Check with T580 output levels oscilloscope VCO and solder joints. CONTROL OV ? Check VCO control loop components Check with Replace faulty C581,C582,C583,R580 oscilloscope VCO components and R581 CONTROL > 4V ? Replace VCO Page 18 ¤Nokia Corporation Issue 1 07/02...
  • Page 85 SWT 50 ms 3.685600000 GHz 1 AP CLRWR -100 -110 Center 3.6856 GHz 200 kHz/ Span 2 MHz Date: 17.JUN.2002 13:44:41 Figure 12: Example of 4G VCO CONTROL signal, 900 RX, channel 124, continuous mode Issue 1 07/02 ¤Nokia Corporation Page 19...
  • Page 86 NHL-2NA CCS Technical Documentation Figure 13: Example of 4G VCO CONTROL signal, 1800 TX, channel 512, continuous mode Page 20 ¤Nokia Corporation Issue 1 07/02...

  • Page 87: Hagar

    Baseband -Hagar serial interface troubleshooting -TXP &TXC signals Check with RF probe 4G VCO o/p signal 3589.6MHz (GSM900) Synthesizer 3495.6MHZ(GSM1800) troubleshooting Level > -37dBm Check modulator output components Replace HAGAR Replace faulty components Issue 1 07/02 ¤Nokia Corporation Page 21...

  • Page 88: Pa And Antenna Switch

    - PA Vcc, Vcc1, Vcc2, Vcc3 =2.7V components components. - 900 & 1800 PA bias =2.7V pulsed - VTxLo_GSM = 0 V (GSM900) OK ? Replace PA Check components surrouding PA. Replace HAGAR Replace faulty components Page 22 ¤Nokia Corporation Issue 1 07/02...

  • Page 89: Receiver Tunings

    • Rx Channel select filter is tuned only in one band = Single calibration for both bands • Select Maintenance => Tuning => Rx Channel select filter calibration • Select “Yes” to start tuning with values already saved to the phone • Press "AutoTune" to start the tuning Issue 1 07/02 ¤Nokia Corporation Page 23...
  • Page 90 • Select “Stop” • If values shown are within limits, choose “Yes” to save values to the phone save them to phone. • Close the “RX Channel Select Filter Calibration “– dialog to end tuning Page 24 ¤Nokia Corporation Issue 1 07/02...

  • Page 91: Rx Calibration

    • Select Maintenance => Tuning => Rx calibration • When RX Calibration has been started, you can choose the correct band from the dropdown menu. Begin tuning from EGSM 900 band. • Press "Start" Issue 1 07/02 ¤Nokia Corporation Page 25...
  • Page 92 CCS Technical Documentation • Select “Default” to start tuning from factory default values => OK • Set the Calibration mode to “Automatic” • Press "Calibrate" • Set RF generator to required frequency => OK Page 26 ¤Nokia Corporation Issue 1 07/02...
  • Page 93 • If values shown are within limits, choose “Yes” to save values to the phone • Continue tuning from GSM1800. Choose the correct band from the dropdown menu. • Press "Start" to continue just like in the EGSM900 Band above. Issue 1 07/02 ¤Nokia Corporation Page 27...
  • Page 94 RSSI5 119.5 114…124 RSSI6 129.5 124…134 RSSI7 139.5 134…144 RSSI8 149.5 144…152.5 • Choose “Stop” to end tuning • If values shown are within limits, choose “Yes” to save values to the phone Page 28 ¤Nokia Corporation Issue 1 07/02...
  • Page 95 NHL-2NA CCS Technical Documentation • Close the “RX – Calibration – dialog to end tuning Issue 1 07/02 ¤Nokia Corporation Page 29...

  • Page 96: Rx Band Filter Response Compensation

    • Remember to take jig and cable attenuations into account! • Select Maintenance => Tuning => Rx band filter response compensation • Select “Yes” to start tuning with values already saved to the phone • Select "Manual tuning" Page 30 ¤Nokia Corporation Issue 1 07/02...
  • Page 97 • You will be asked to supply 9 different RF frequencies to the phone • Set first required frequency and level => OK • Set 2nd required frequency and level => OK • Set 3rd required frequency and level => OK Issue 1 07/02 ¤Nokia Corporation Page 31...
  • Page 98 • Set 4th required frequency and level => OK • Set 5th required frequency and level => OK • Set 6th required frequency and level => OK Set 7th required frequency and level => OK Page 32 ¤Nokia Corporation Issue 1 07/02...
  • Page 99 -10…+5 925.26771 0.511 -5…+5 927.66771 0.857 -5…+5 1009 932.06771 1.174 -5…+5 942.46771 0.569 -5…+5 953.06771 1.928 -5…+5 957.86771 0.964 5…+5 959.86771 0.545 -5…+5 962.26771 -0.040 -10…+5 • Choose "Stop, write to PM area" Issue 1 07/02 ¤Nokia Corporation Page 33...
  • Page 100 0.616 -5…+5 1879.86771 0.185 -5…+5 1884.46771 -1.132 -10…+5 • If values shown are within limits, save values to the phone • Close the “RX Band Filter Response Compensation” – dialog to end tuning Page 34 ¤Nokia Corporation Issue 1 07/02...

  • Page 101: Rx Am Suppression

    • This dialog performs RX AM Suppression. • Remember to take jig and cable attenuations into account! • Select Maintenance => Tuning => Rx Am suppression • Start => Default settings => OK, Issue 1 07/02 ¤Nokia Corporation Page 35...
  • Page 102 • Press the “Tune” button to perform actual tuning. • The new tuning values and Rssi dBm value are updated. • One "I" and "Q" line values sold be 0, other values 0..31 • RSSI level should be around -107 dBm Page 36 ¤Nokia Corporation Issue 1 07/02...
  • Page 103 • Repeat the same steps as for the EGSM900 band • If values shown are within limits, choose “Yes” to save values to the phone • Close the “RX AM Suppression” – dialog to end tuning Issue 1 07/02 ¤Nokia Corporation Page 37...

  • Page 104: Transmitter Tunings

    • The order of tuning should be same as the order of the sliders e.g. the Tx I DC Off- set is tuned first and Phase difference is tuned last. • Use <=, =>, PgUp or PgDn keys Page 38 ¤Nokia Corporation Issue 1 07/02...
  • Page 105 S WP 2 . 0 C E N T E R 8 9 7 . 4 0 0 0 M H z S P A N 2 0 0 . 0 k H z Issue 1 07/02 ¤Nokia Corporation Page 39...
  • Page 106 Continue tuning from GSM1800. Choose the correct band from the dropdown • menu. • Repeat the same steps as for the EGSM900 band • Set spectrum analyzer center frequency to 1747.8 MHz, span 200kHZ, RBW and VWB 3kHz and sweeptime to 2 seconds Page 40 ¤Nokia Corporation Issue 1 07/02...
  • Page 107 • If values shown are within limits, check the "Save to product" tick box and choose “Stop” save the new values to the product • Close the “TX I/Q Tuning” – dialog to end tuning Issue 1 07/02 ¤Nokia Corporation Page 41...

  • Page 108: Tx Power Level Tuning

    • Maintenance => Tuning => Tx power level tuning • Remember to take jig and cable attenuations into account! • Select “Start” => “Load from: Permanent memory” => “OK “ • Note that TX PA mode is “High” at this point. Page 42 ¤Nokia Corporation Issue 1 07/02...
  • Page 109 • Press "Calculate coefficients" • Change TxPA Mode to “Low“ from the drop down menu. When the PA Mode is changed, the previous values are saved in memory and the ones for new mode are shown Issue 1 07/02 ¤Nokia Corporation Page 43...
  • Page 110 • If values shown are within limits select “Stop” and check “Save values to phone permanent memory” • Select “Yes” to save values to phone • Continue tuning from GSM1800. Choose the correct band from the dropdown menu. Page 44 ¤Nokia Corporation Issue 1 07/02...
  • Page 111 • If values shown are within limits select “Stop” and check “Save values to phone permanent memory” • Select “Yes” to save values to phone • Close the “TX Power Level Tuning” – dialog to end tuning Issue 1 07/02 ¤Nokia Corporation Page 45...

  • Page 112: Appendix

    The following figure shows the RX/TX operating frequency mapping to the frequency synthesizer operating frequency. For a more detailed list of actual channel number map- pings see below. Figure 14: NHL-2NA VCO frequency mappings Page 46 ¤Nokia Corporation Issue 1 07/02...

  • Page 113: E-Gsm900

    951.8 3627. 3807. 884.6 929.6 3538. 3718. 894.6 939.6 3578. 3758. 3628 3808 884.8 929.8 3539. 3719. 894.8 939.8 3579. 3759. 907.2 952.2 3628. 3808. 3540 3720 3580 3760 907.4 952.4 3629. 3809. Issue 1 07/02 ¤Nokia Corporation Page 47...
  • Page 114 3739. 899.8 944.8 3599. 3779. 912.2 957.2 3648. 3828. 3560 3740 3600 3780 912.4 957.4 3649. 3829. 900.2 945.2 3600. 3780. 912.6 957.6 3650. 3830. 900.4 945.4 3601. 3781. 912.8 957.8 3651. 3831. Page 48 ¤Nokia Corporation Issue 1 07/02...

  • Page 115: Gsm1800

    7229. 1737. 1832. 3475. 3665. 1762. 1857. 3525. 3715. 1712. 1807. 6850. 7230. 1737. 1832. 3475. 3665. 1763 1858 3526 3716 1712. 1807. 6851. 7231. 1738 1833 3476 3666 1763. 1858. 3526. 3716. Issue 1 07/02 ¤Nokia Corporation Page 49...
  • Page 116 7251. 1743 1838 3486 3676 1768. 1863. 3536. 3726. 1718 1813 6872 7252 1743. 1838. 3486. 3676. 1768. 1863. 3536. 3726. 1718. 1813. 6872. 7252. 1743. 1838. 3486. 3676. 1768. 1863. 3537. 3727. Page 50 ¤Nokia Corporation Issue 1 07/02...
  • Page 117 3636. 1748. 1843. 3496. 3686. 1773. 1868. 3547. 3737. 1723. 1818. 3446. 3636. 1748. 1843. 3497. 3687. 1773. 1868. 3547. 3737. 1723. 1818. 3447. 3637. 1748. 1843. 3497. 3687. 1774 1869 3548 3738 Issue 1 07/02 ¤Nokia Corporation Page 51...
  • Page 118 3647. 1753. 1848. 3507. 3697. 1779 1874 3558 3748 1728. 1823. 3457. 3647. 1754 1849 3508 3698 1779. 1874. 3558. 3748. 1729 1824 3458 3648 1754. 1849. 3508. 3698. 1779. 1874. 3558. 3748. Page 52 ¤Nokia Corporation Issue 1 07/02...
  • Page 119 3658 1759. 1854. 3518. 3708. 1784. 1879. 3568. 3758. 1734. 1829. 3468. 3658. 1759. 1854. 3518. 3708. 1784. 1879. 3569. 3759. 1734. 1829. 3468. 3658. 1759. 1854. 3519. 3709. 1784. 1879. 3569. 3759. Issue 1 07/02 ¤Nokia Corporation Page 53...
  • Page 120 CCS Technical Documentation 1734. 1829. 3469. 3659. 1759. 1854. 3519. 3709. 1734. 1829. 3469. 3659. 1760 1855 3520 3710 1735 1830 3470 3660 1760. 1855. 3520. 3710. 1735. 1830. 3470. 3660. 1760. 1855. 3520. 3710. Page 54 ¤Nokia Corporation Issue 1 07/02...

  • Page 121: Ui Troubleshooting

    Check UI Repair connector connector, both Faulty and retest male and female Check EMI Change EMI filter Faulty filter visually and retest Check UPP Change UPP and Faulty retest Change UI module and retest Issue 1 07/02 ¤Nokia Corporation Page 1...

  • Page 122: Image On Display Not Correct

    25-27 and 30. Is there activity? Check Change EMI filter EMI filters and retest visually. Are they OK? Change UPP Problem solved WD2 and retest. Change UI Problem solved module and retest. OK? Beyond economical repair Page 2 ¤Nokia Corporation Issue 1 07/02...
  • Page 123 NHL-2NA CCS Technical Documentation This page intentionally left blank. Issue 1 07/02 ¤Nokia Corporation Page 3...

  • Page 124: Key Or 5-Way Switch Not Working

    Check EMI Change EMI filter filters visually. and retest. Are they OK? Change UPP WD2 and test Problem solved if OK. Change UI module and Problem solved test if OK. Beyond economical repair Page 4 ¤Nokia Corporation Issue 1 07/02...

  • Page 125: Grip-Module Troubleshooting

    This section describes how the troubleshooting should be done if there is something wrong with the Nokia 7650 Grip-module (LS4). All parts of the Grip-module - the back- light, current gauge, vibra, keyboard and hall-sensor - have their own flowcharts that describe how problems can be solved.

  • Page 126: Backlight

    Beyond of economical repair Problem solved Change N320 to a new one and retest. Change UEM and retest, Does backlight Change work? the whole grip-PWB Beyond of and retest economical repair Problem solved Page 2 ¤Nokia Corporation Issue 1 07/02...

  • Page 127: Current Gauge

    D190, change if Problem solved Did it solve the needed? problem? Did it solve the Did it solve the problem? problem? Beyond of economical repair Issue 1 07/02 ¤Nokia Corporation Page 3...

  • Page 128: Vibra

    Check flex cable and connectors that Beyond of their contacts economical are ok, repair Repair them and change if necessary, Change UEM retest. D190, did it solve the problem? Problem solved Page 4 ¤Nokia Corporation Issue 1 07/02...

  • Page 129: Keyboard

    Change the Repair them and Change the Change EMI- Grip-module change if Flex cable filter and necessary, retest. and retest, retest, Problem solved Issue 1 07/02 ¤Nokia Corporation Page 5...

  • Page 130: Hall Sensor

    Pin3 is down when magnet isn’t above N380. Pin3~1.8V when magnet is above it. Problem solved Change UPP_wd2, Change the N380 to a new one and retest. Problem Beyond of solved economical repair Page 6 ¤Nokia Corporation Issue 1 07/02...

  • Page 131: Camera Troubleshooting Instructions

    Flicker: Phenomena, which is caused by pulsating in scene lighting, typically appearing as wide horizontal stripes in image. Noise: Variation of response between pixels with same level of input illumination. See e.g. Noisy image taken in +70 degrees celsius for example of noisy image. Issue 1 06/02 ¤Nokia Corporation Page 1...

  • Page 132: Image Taking Conditions Effect To Image Quality

    With near objects (about 5 cm – 30 cm) the lens behaves so that center of the image may not be the sharpest point, instead maximum sharpness is approximately in half way from center to edges. This phenomena can particularly be seen in images which have Page 2 ¤Nokia Corporation Issue 1 06/02...
  • Page 133 In practice, this appears as bending of straight objects in edges of the image. See Geometrical distortion and Handshake has caused blurring of this image. Note geo- metrical barrel distortion in background for example. This is normal behavior, do not change the camera module. Issue 1 06/02 ¤Nokia Corporation Page 3...
  • Page 134 CMOS camera types and normal, and can not be helped. Movement of camera or object will usually cause blurring in inside or dim lighting conditions due to long expo- sure time. This is normal behavior, do not change the camera module. Page 4 ¤Nokia Corporation Issue 1 06/02...
  • Page 135 In practice this means that when taking a picture inside e.g. having a window behind object, will produce poor results. This is normal behavior, do not change the camera module. Issue 1 06/02 ¤Nokia Corporation Page 5...
  • Page 136 This happens due to unwanted reflections inside camera optics. Generally this kind of reflections are common in all optical systems. This is normal behavior, do not change the camera module. Page 6 ¤Nokia Corporation Issue 1 06/02...
  • Page 137 NHL-2NA CCS Technical Documentation Figure 10: A lens reflection effect caused by sun shining above the scene Figure 11: A good picture taken indoors Figure 12: A good picture taken outdoors Issue 1 06/02 ¤Nokia Corporation Page 7...

  • Page 138: Camera Construction

    • Hard wired DSP chip, which is wire bonded and potted to underside of the mod- • Spring connector with 13 contact springs, containing the component type infor- mation (laser marked on the surface) • Passive components Page 8 ¤Nokia Corporation Issue 1 06/02...

  • Page 139: Image Quality Analysis

    'blobs'. Sometimes they will be very hard to find, and thus the user probably will not notice them at all since they do no harm. But it is possible that a larger particle disturbs the user, causing need for service. Issue 1 06/02 ¤Nokia Corporation Page 9...

  • Page 140: Testing For Sharpness

    Any particles inside the cavity between window and lens have most probably been trapped there in assembly phase in Nokia fac- tory. It is of course also possible that the user has disassembled the device and caused the problem.
  • Page 141 That is why the cleanness of the back window should always be checked and the window should be wiped clean with a suitable cloth. Issue 1 06/02 ¤Nokia Corporation Page 11...
  • Page 142 NHL-2NA CCS Technical Documentation Figure 15: Image taken with clear back window Figure 16: Image taken with a faint fingerprint on back window Page 12 ¤Nokia Corporation Issue 1 06/02...
  • Page 143 NHL-2NA CCS Technical Documentation Figure 17: Image taken with a thick fingerprint on back window Figure 18: Image taken with badly soiled back window Issue 1 06/02 ¤Nokia Corporation Page 13...

  • Page 144: Bit Errors

    The errors will be clearly visible as colorful sharp dots or lines in camera VGA images. Typically this is a contact problem between the camera module and LG4. Check camera assembly and spring connector contacts. Page 14 ¤Nokia Corporation Issue 1 06/02...

  • Page 145: Fault Finding Trees

    PWB dirty? VAUX2 over C266: 2.78V Measure nominal operating voltages over VAUX3 over C284: 1.8V C266 and C284 nominal Camera OP Go to power voltages supply trouble shooting (Continued on next page) Issue 1 06/02 ¤Nokia Corporation Page 15...
  • Page 146 DC mode for common Go to UPP Both signals mode voltage) Replace R100 trouble operate, and R1101 shooting, amplitude OK? replace UPP Check camera Go to UPP operation trouble shooting, replace UPP Page 16 ¤Nokia Corporation Issue 1 06/02...

  • Page 147: No Recognizable Viewfinder Image

    Image OK? between window & (phone dropped), try according to target camera another camera If viewfinder image can be seen but there is something wrong with it, see Chapter 5.3 Bad image quality Issue 1 06/02 ¤Nokia Corporation Page 17...

  • Page 148: Bad Image Quality

    Proceed as for Data errors "Hardware failure in image message" Analyze general image quality. If not on usual level, try replacing camera. Check also camera window in acoustic chamber assembly and replace if needed. Page 18 ¤Nokia Corporation Issue 1 06/02...

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