TX Path of the transmitted EGSM900 signal ............79 General instructions for GSM1800/1900 TX Troubleshooting .........83 DCS 1800/PCS 1900 Tx fault finding flow chart ............83 Path of the transmitted GSM1800/1900 signal ............84 Copyright Nokia. All rights reserved.. Draft 2 8/2003 Page 1...
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RF tuning after repairs ....................99 RX Calibration (incl. VCXO Calibration) ..............99 RX AGC limits ......................104 RX Band Filter Response Compensation ..............107 TX Power tuning ......................114 TX I/Q Tuning ......................116 Bluetooth Troubleshooting ..................130 Copyright Nokia. All rights reserved. Page 2 Draft 2 8/2003...
If liquid damage, stop repairing! Flash phone before disassembling it if fault is not obvious and Phoenix connection is OK. Disassemble phone: Check failed module visually: Mechanical damages? Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-3 Company Confidential...
Measurements have been made with a current probe connected to an oscilloscope. Operating Mode Current Consumption Idle 2W audio call 350mA (LOCAL MODE) MP3 playback nominal 80mA FM-radio playback nominal 25mA Copyright 2003 Nokia Corporation Page 6(a)-4 Issue 1 09/2003 Company Confidential...
Symptoms related to energy management “Phone does not stay on” ”Charging is not working” ”Time is lost during battery change” ”Charging takes too long” ”Operating time is very short” Copyright 2003 Nokia Corporation Page 6(a)-6 Issue 1 09/2003 Company Confidential...
PC connected. These test and the items included are as follows: If some selftest is failed, see relevant chapter in this Troubleshooting document. Copyright 2003 Nokia Corporation Page 6(a)-10 Issue 1 09/2003...
C226, R220 and R385 line low after the programming startup Is it ok? Change Measure FBUSTX line during flash programming is it 1.8V? Memory faults page Change UPP Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-11 Company Confidential...
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Check flash0 bypass caps, check "Flash informs Vpp connection to flasher, Check about a failure" Vpp resistor (R314, 4.7k) Vpp resistor(4.7k) during flashing Ok->Change flash0 Retest ADSP Flashing Copyright 2003 Nokia Corporation Page 6(a)-12 Issue 1 09/2003 Company Confidential...
ADSP flash environment consists of ADSP, ADSP flash, EMIF (external memory interface), communication interfaces (USB and UPP/UEM), ADSP flash protecting control and power supplies for ADSP and ADSP flash. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-13 Company Confidential...
UEM D190 (pin number C2) If phone boots to TEST or LOCAL mode with normal battery, BSI is short circuited to ground. Check EMI-filter and filtering capacitors, which are located to BSI. Copyright 2003 Nokia Corporation Page 6(a)-14 Issue 1 09/2003...
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C301, C302 & C313 (R433) PURX (J125) 1.8V? Check Vcorea See next page and Vmema voltages, OK? Check sleep Meas. from (J123) clock (J124) C197, OK? 32.768Khz? Check B190, C196, C197 Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-15 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation VCOREA Troubleshooting Copyright 2003 Nokia Corporation Page 6(a)-16 Issue 1 09/2003 Company Confidential...
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Company Confidential NEM-4 CCS Technical Documentation BB Troubleshooting VMEMA Troubleshooting Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-17 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Audio Power Troubleshooting Copyright 2003 Nokia Corporation Page 6(a)-18 Issue 1 09/2003 Company Confidential...
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In SLEEP mode the VCXO is off. UEM generates low frequency clock signal (32.768 kHz) that is fed to UPP_WD2, Bluetooth and ZOCUS. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-19 Company Confidential...
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If charger is not NMP approved type and its current and voltage is not within NMP charger window then software does not start charging and there is “NOT CHARGING” on the display. Voltage should be between 5.3V - 9.5V and current between 200mA – Copyright 2003 Nokia Corporation Page 6(a)-20 Issue 1 09/2003...
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BB Troubleshooting 900mA Remove and reconnect battery and charger few times before you start to measure device. This check ensures that the fault really exists. (Refer to “Charging Troubleshooting”) Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-21 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Figure 3: Charging Troubleshooting Phoenix and JBV1/MJF26 Check BL5-C, Btemp, BSI, X381, X606, R385, R404 Copyright 2003 Nokia Corporation Page 6(a)-22 Issue 1 09/2003 Company Confidential...
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C388 and C387. Is it V383 and L381. V381 and L380 >3.0Vdc? Check R191 Check R191, and Z190. is it OK? Are they ok? Replace Replace R191 R190/Z190 and and retest retest. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-23 Company Confidential...
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Inspect BSI line and components in it (R385, Pull-up resistor R220). If these are OK, change UEM. BSI Gain over limits: Inspect BSI line and components in it (R385, Pull-up resistor R220). If these are OK, change UEM. Copyright 2003 Nokia Corporation Page 6(a)-24 Issue 1 09/2003 Company Confidential...
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NOTE: IF Vbatt Scaled and Divided unit results are different default calibration values are used. In this case perform EM-calibration to get full performance of phone. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-25 Company Confidential...
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Measure voltage of backup battery during charging, It should arise if it is not 3.2V, yet. When the voltage is over 2.0V for sure, check backup battery with Phoenix. -> In not OK then D190 is faulty. Ensure that the RTC is running. Copyright 2003 Nokia Corporation Page 6(a)-26 Issue 1 09/2003 Company Confidential...
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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. Copyright 2003 Nokia Corporation Issue 1 09/2003...
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Measured with 3Vsim Figure 5: SIM answer to reset. SIM answer to reset CH1 = SIM_CLK CH2 = SIM_RST CH3 = SIM_I/O CH4 = SIM_PWR Measure points SIM connector Copyright 2003 Nokia Corporation Page 6(a)-28 Issue 1 09/2003 Company Confidential...
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CCS Technical Documentation BB Troubleshooting Figure 6: SIM Clk 3.25MHz. SIM_Clk_3.25MHz CH1 = SIM_CLK Measure points SIM connector Remember to check the two PHOENIX test cases before changing UPP!!!! Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-29 Company Confidential...
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Are the signals present? present? Change SIM ASIP, R496 Analyse signals & look for errors in rise / fall times due Problem solved? to wrong fitted / faulty passives Copyright 2003 Nokia Corporation Page 6(a)-30 Issue 1 09/2003 Company Confidential...
Company Confidential NEM-4 CCS Technical Documentation BB Troubleshooting Audio Troubleshooting Figure 7: Audio routing window in Phoenix Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-31 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Microphone Copyright 2003 Nokia Corporation Page 6(a)-32 Issue 1 09/2003 Company Confidential...
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Company Confidential NEM-4 CCS Technical Documentation BB Troubleshooting Earpiece Check that holes are not coated. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-33 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Copyright 2003 Nokia Corporation Page 6(a)-34 Issue 1 09/2003 Company Confidential...
Phoenix window during flashing if flash1 or flash 2 is failing. Id's are however displayed on the Phoenix window and successful read of flash1 id's can be checked from there. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-37...
Change UEM while Vibra is switched noise? Check C134, C135, V132 and V131 Change the Vibra Vibra works and retest. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-41 Company Confidential...
UI function. If the problem is due to the display or keymat PWB the whole UI module should be replaced. However, the earpiece maybe replaced. (see Audio Troubleshooting) Copyright 2003 Nokia Corporation Page 6(a)-42 Issue 1 09/2003...
UI module. Note: that it is possible for an LED to be non-functional and for all other LEDs to still be working. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-43...
NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Backlight does not turn on Figure 8: Copyright 2003 Nokia Corporation Page 6(a)-46 Issue 1 09/2003 Company Confidential...
Company Confidential NEM-4 CCS Technical Documentation BB Troubleshooting FM Radio Troubleshooting FM Radio component layout Figure 9: Component placement Figure 10: Trace layout. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-47 Company Confidential...
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BB Troubleshooting CCS Technical Documentation Figure 11: FM radio block layout. Components C001 and C002 are not shown in the picture. Those components are placed near audio connector X002. Copyright 2003 Nokia Corporation Page 6(a)-48 Issue 1 09/2003 Company Confidential...
Use active RF probe when measuring frequencies with spectrum analyzer. Note 1. RF test signal parameters: - Amplitude, A, –67.0 dBm - Carrier frequency, f , 98,000 MHz ∆ - Deviation, f, 75 kHz Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-49 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation - Modulating frequency f , 1,000 kHz (RF generator internal) - FM stereo, mode R=L, pilot state ON Copyright 2003 Nokia Corporation Page 6(a)-50 Issue 1 09/2003 Company Confidential...
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C162 and C163. Both OK ? Change N500 N356. Measure signal from J103 and J104. Is it OK ? E Nokia Corporation Change OK, RETEST IN FLALI radio module TB4 Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-51 Company Confidential...
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Signal 1: Audio output from PWB test points J103 and J104, with FM test signal, volume 100%. Signal 2: Audio output from FM radio pins 22 and 23(same as in C017 and C018), with FM test signal Copyright 2003 Nokia Corporation Page 6(a)-52 Issue 1 09/2003 Company Confidential...
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#VBW 10 kHz #SWP 20.0 msec Figure 17: VCO frequency from FM radio pins 3 and 4, the other ends of V500 and V501, with FM test signal Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(a)-53 Company Confidential...
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NEM-4 Company Confidential BB Troubleshooting CCS Technical Documentation Copyright 2003 Nokia Corporation Page 6(a)-54 Issue 1 09/2003 Company Confidential...
Most RF semiconductors are static discharge sensitive. ESD protection must be taken into account during repair (ground straps and ESD soldering irons). Mjoelner RF ASIC is moisture sensitive. Therefore, Mjoelner RF ASIC must be pre-baked prior to soldering. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-53 Company Confidential...
PCN and GSM1800 will be used for the mid band. PCS and GSM1900 will be used for the high band. RF Key component placement Figure 1: RF key component placement Copyright 2003 Nokia Corporation Page 6(b)-54 Issue 1 09/2003 Company Confidential...
RF power supplies are generated in the UEM and can be measured either in the Mjoelner can or in the baseband can. Arrows mark the measurement points inside the pictures. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-55...
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Measurement points are indicated on the picture below. Figure 3: Rx I and Q measurement points Figure 4: Rx measurement points at Rx SAW filters and Mjoelner RF ASIC Copyright 2003 Nokia Corporation Page 6(b)-56 Issue 1 09/2003 Company Confidential...
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Measurement points are shown in the picture below, Figure 5: Tx measurement points inside PA can (bottom side of PWB) Figure 6: Tx measurement points on the top side of PWB Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-57...
The RF supports HSCSD (High Speed Circuit Switched Data) and GPRS (General Packed Radio Service), meaning multi-slot operation, this will not require special equipment or procedures in repair situations. Copyright 2003 Nokia Corporation Page 6(b)-58 Issue 1 09/2003 Company Confidential...
GSM 900 or GMS 1800 or GSM 1900 Active unit Operation mode Burst RX/TX Channel 37 or 700 or 661 Select Testing alt-S RSSI reading The setup should now look like this: Copyright 2003 Nokia Corporation Page 6(b)-62 Issue 1 09/2003 Company Confidential...
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Wait until phone information is shown in the lower right corner of the screen. Set operating mode to local mode Select Testing alt-S RF Controls Wait until the RF Controls window pops up Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-63 Company Confidential...
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Press Start. A window pops up, e.g. for EGSM900 band: Connect an external signal generator to the RF connector of the phone and set the gen- erator as told in the window, taking care for external cable losses. Copyright 2003 Nokia Corporation Page 6(b)-64 Issue 1 09/2003...
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80dBm Start Phoenix Service Software Select Scan Product Ctrl-R Wait until phone information shows in the lower right corner of the screen. Set operating mode to local mode Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-65 Company Confidential...
Set signal generator frequency to 942.47MHz for EGSM, 1842.87MHz for DCS 1800 or 1960.07MHz for PCS 1900. Set signal generator amplitude to -60dBm. Note:That checking the RF inputs to SAW filters Z602, Z603 & Z604 will be extremely difficult with Copyright 2003 Nokia Corporation Page 6(b)-66 Issue 1 09/2003 Company Confidential...
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Rectify S/C L701, L702 Inductor L703. OK? Refer to BB Replace Fault Finding Mjoelner Receiver is working correctly. Test With Test With Inspect / Check Spectrum Analyzer Oscilloscope Action Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-67 Company Confidential...
PWB to the EGSM900 SAW filter (Z604). From RX2-DCS output the GSM1800 RX signal is routed to the GSM1800 SAW filter (Z602). From RX3-PCS output the RX GSM1900 signal is routed to the GSM1900 SAW filter (Z603). Copyright 2003 Nokia Corporation Page 6(b)-68 Issue 1 09/2003...
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• Two PREGAIN amplifiers, one for EGSM900 and one common for GSM1800 and GSM1900. • Two passive I/Q mixers (MIX), one for EGSM900 and one common for GSM1800 and GSM1900. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-69 Company Confidential...
TX power. Use the automatically selected channel. Set Operation Mode to ‘Burst’. Choose the Power level you want the phone to operate at. Copyright 2003 Nokia Corporation Page 6(b)-70 Issue 1 09/2003 Company Confidential...
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Diagnose as per fault finding flow chart. Note:Be careful when selecting the operation mode, if ‘Continuous’ is selected prolonged transmission may damage the phone. Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-71 Company Confidential...
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NEM-4 Company Confidential RF Troubleshooting CCS Technical Documentation Copyright 2003 Nokia Corporation Page 6(b)-72 Issue 1 09/2003 Company Confidential...
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Company Confidential NEM-4 CCS Technical Documentation RF Troubleshooting Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-73 Company Confidential...
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NEM-4 Company Confidential RF Troubleshooting CCS Technical Documentation Figure 12: Mjoelner Can Tx Test Points TX Analog I & Q Data, C715 & C716 Copyright 2003 Nokia Corporation Page 6(b)-74 Issue 1 09/2003 Company Confidential...
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Company Confidential NEM-4 CCS Technical Documentation RF Troubleshooting TXP & TXC Lines during Transmission Copyright 2003 Nokia Corporation Issue 1 09/2003 Page 6(b)-75 Company Confidential...
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NEM-4 Company Confidential RF Troubleshooting CCS Technical Documentation [This page intentionally left blank.] Copyright 2003 Nokia Corporation Page 6(b)-76 Issue 1 09/2003 Company Confidential...
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CCS Technical Documentation RF Troubleshooting TXP / TXC Mask Power Control Loop On Baseband Generated Reference for EGSM Power Level 19 Figure 1: EGSM TX Can Test Points Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-77 Company Confidential...
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CCS Technical Documentation VTXB_900 (EGSM V802 Pre-Amp Biasing Waveform) Only Biases V802 for duration of TX Pulse. EGSM Transmit Waveform (Burst, Power Level 19) Phone drew 140mA during Burst operation Copyright 2003 Nokia Corporation. Page 6(b)-78 Issue 1 09/2003 Company Confidential...
The components can be grouped into blocks and drawn as shown below. Note that the following picture shows both EGSM900 transmitter (bottom) and GSM1800/ GSM1900 transmitter (top). Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-79 Company Confidential...
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The EGSM900 output is controlled by the power control loop. From the EGSM900 output of the PA the RF signal is fed through the directional coupler (one of the power control loop components) to the antenna switch. Copyright 2003 Nokia Corporation. Page 6(b)-80 Issue 1 09/2003...
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Mjoelner RF ASIC using the control signals CONT1, CONT2 and CONT3. The following table shows the possible different states. CONT1 CONT2 CONT3 EGSM DCS/PCS DCS Rx PCS Rx EGSM Tx [Volt] [Volt] [Volt] Figure 2: Antenna Switch Test Points Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-81 Company Confidential...
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The transmit signal has been checked with a spectrum analyzer at RF connector, X602 and was found to be too low or non-existent. • The VCO is running correctly. Copyright 2003 Nokia Corporation. Page 6(b)-82 Issue 1 09/2003 Company Confidential...
The Power Amplifier is getting a correct VBATRF supply via L805 & L809. • Mjoelner’s supply voltages VR1A, VR2, VR3, VR4, VR5 & VR7 are all working cor- rectly. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-83 Company Confidential...
The GSM1800/GSM1900 part of the PA has a maximum output of app. 33dBm. The sup- ply is coming directly from the Battery connectors. The output is controlled by the power control loop. From the output of the PA the signal Copyright 2003 Nokia Corporation. Page 6(b)-84 Issue 1 09/2003...
If the Tx output is too high, then it is most likely that there is a problem within the Power Control loop. Mjoelner is receiving the Reference TXC from Baseband and not getting any feedback Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-85...
General instructions for Synthesizer Troubleshooting Connect the phone to a PC with DAU-9P cable and dongle and follow these instructions: Start Phoenix Service Software (dongle needed): Open FBUS connection Copyright 2003 Nokia Corporation. Page 6(b)-86 Issue 1 09/2003 Company Confidential...
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Wait until the RF Controls window pops up Set the synthesizer to the following mode: Select Band GSM 900 Active unit Operation mode Continuous RX/TX Channel The setup should now look like this: Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-87 Company Confidential...
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VCO is 240MHz/V typ.). Figure 3: PLL Synthesizer Test Points If this is not the case, then go to Fault finding chart in this document for Troubleshoot- ing. Copyright 2003 Nokia Corporation. Page 6(b)-88 Issue 1 09/2003 Company Confidential...
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Company Confidential NEM-4 CCS Technical Documentation RF Troubleshooting Mjoelner Can Test Points Figure 4: Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-89 Company Confidential...
VCO is 240MHz/V. Even if PLL is not working (Vc out of range) there is a frequency at the output of the VCO, which is between 3 and 4 GHz (if the VCO itself is ok). Copyright 2003 Nokia Corporation. Page 6(b)-90 Issue 1 09/2003...
It is important to say that power supply for VCXO ( VR3) is only switched ‘OFF’ in the so- called ‘Deep Sleep Mode’ and power supply for VCO (G701 VR7) is switched ‘OFF’ in so- called ‘Sleep Mode’. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-91...
Calibration of GSM1800 and GSM1900 band only determines AGC values. The VCXO-calibration finds out a calibration value for VCXO control, an AFC initial value and 3 AFC-slope coefficients. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-99 Company Confidential...
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EGSM Set operating mode to local mode Select Tuning Alt-u RX Calibration Wait until the RX Calibration window pops up. Select Band GSM 900 Copyright 2003 Nokia Corporation. Page 6(b)-100 Issue 1 09/2003 Company Confidential...
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Connect an external signal generator to the RF connector of the phone and set the gen- erator as told in the window, taking care for external cable losses. Press ok and the window closes. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-101...
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RF Troubleshooting CCS Technical Documentation A typical result will look like this: Press Save and Continue. RX Calibration for EGSM is finished and the tuning continues automatically with GSM1800. Copyright 2003 Nokia Corporation. Page 6(b)-102 Issue 1 09/2003 Company Confidential...
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Set the generator as instructed and press OK. A typical result will look like this: Press Save and Continue. RX Calibration for GSM1800 is finished and the tuning contin- ues automatically with GSM 1900. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-103 Company Confidential...
The Rx calibration is only valid if it is within certain limits. For the most recent limits see NEM-4 Production Testing Requirements, If calibration is not within limits, there is a fault in the RX chain. Copyright 2003 Nokia Corporation. Page 6(b)-104 Issue 1 09/2003...
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Company Confidential NEM-4 CCS Technical Documentation RF Troubleshooting Below the values for RSSI4 and RSSI7 are given: RSSI4:(Rx A5) band EGSM900 GSM1800 GSM1900 RSSI7:(Rx A8) band EGSM900 GSM1800 GSM1900 Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-105 Company Confidential...
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NEM-4 Company Confidential RF Troubleshooting CCS Technical Documentation [This page intentionally left blank.] Copyright 2003 Nokia Corporation. Page 6(b)-106 Issue 1 09/2003 Company Confidential...
Wait until the RF Controls window pops up Select Band GSM 900 Select Tuning Alt-u RX Band Filter Response Compensation Select Input Signal Level -60dBm. The setup should now look like this: Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-107 Company Confidential...
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Press OK and a new window pops up. Repeat this sequence 9 times until all channels have been tuned. Press Save and Continue. RX Band Filter Response Compensation for EGSM is finished and the tuning continues automatically with GSM1800. Copyright 2003 Nokia Corporation. Page 6(b)-108 Issue 1 09/2003 Company Confidential...
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GSM1900 and the following window should be seen: Set the generator as instructed and press OK. Repeat this sequence 9 times until all channels have been tuned. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-109 Company Confidential...
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Press OK. Press Save and Continue. RX Band Filter Response Compensation for EGSM is finished and the tuning continues automatically with GSM1800. Copyright 2003 Nokia Corporation. Page 6(b)-110 Issue 1 09/2003 Company Confidential...
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Set the generator to sweep the frequency list as instructed and press OK. Press Save and Continue. RX Band Filter Response Compensation for GSM1800 is fin- ished and the tuning continues automatically with GSM1900. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-111...
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3 bands. Set operating mode to local mode Select Tuning Alt-u RX Channel Select filter Calibration Check Save to Phone box. Copyright 2003 Nokia Corporation. Page 6(b)-112 Issue 1 09/2003 Company Confidential...
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CCS Technical Documentation RF Troubleshooting The setup should now look like this: Press Tune. Press Stop. Channel select filter calibration is finished and the tuning is fully completed. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-113 Company Confidential...
Wait until the TX Power Level Tuning window pops up. Press Start. TX Power Level Tuning procedure begins from EGSM900 and continues automatically to GSM1800 (PCS/PCN) and GSM1900 (PSCS). Copyright 2003 Nokia Corporation. Page 6(b)-114 Issue 1 09/2003 Company Confidential...
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Phoenix, since they are prod- uct specific. Table 2: GSM1800 Base Press Save and Continue in order to continue with the next band. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-115 Company Confidential...
Connect a Spectrum Analyzer or GSM tester with the option *Narrow Spectrum' to the RF connector of the phone. Select Tuning [Alt-U] TX IQ Tuning [I] Wait until the TX IQ Tuning window pops up. Press Start. Copyright 2003 Nokia Corporation. Page 6(b)-116 Issue 1 09/2003 Company Confidential...
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Reference level 35 dBm EGSM/EGSM900 Marker 1 897.33229 MHz Marker 2 897.4 MHz Marker 3 897.46771 MHz The following default values of the main toolbar should be used: Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-117 Company Confidential...
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(Marker 2 and 3). Use the variables 'TX I DC offset' and 'TX Q DC offset' to adjust the carrier signal to a minimum level (Marker 2). Copyright 2003 Nokia Corporation. Page 6(b)-118 Issue 1 09/2003 Company Confidential...
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2 must exceed 40dB. Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but even possible. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-119 Company Confidential...
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1 and 3 must exceed 40dB. Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but even possible. Copyright 2003 Nokia Corporation. Page 6(b)-120 Issue 1 09/2003...
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Press Save and Continue in order to continue with the next band. Note: The optimal values for I and Q Offset and Amplitude and Phase Difference vary from phone to phone. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-121...
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Band GSM 1800 Active Unit Operation Mode Burst RX/TX Channel TX PA Mode Free TX Data Type All1 Select TX Power Level 0 from the RF Controls window. Copyright 2003 Nokia Corporation. Page 6(b)-122 Issue 1 09/2003 Company Confidential...
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1 and 2 must exceed 40dB. Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but possible. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-123...
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1 and 3 must exceed 40dB. Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but even possible. Copyright 2003 Nokia Corporation. Page 6(b)-124 Issue 1 09/2003...
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Press Save and Continue in order to continue with the next band. Note: The optimal values for I and Q Offset and Amplitude and Phase Difference vary from phone to phone. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-125...
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Band GSM 1900 Active Unit Operation Mode Burst RX/TX Channel TX PA Mode Free TX Data Type All1 Select TX Power Level 0 from the RF Controls window. Copyright 2003 Nokia Corporation. Page 6(b)-126 Issue 1 09/2003 Company Confidential...
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2 must exceed 40dB. Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but even possible. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-127 Company Confidential...
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1 and 3 must exceed 40dB, Tuning is possible by using arrow keys on the keyboard. Pushing the sliders by using the mouse is less sensitive but even possible. Copyright 2003 Nokia Corporation. Page 6(b)-128 Issue 1 09/2003...
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Press Save and Continue to finish the TX IQ tuning. Note! The optimal values for I and Q Offset, Amplitude and Phase Difference vary from phone to phone. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-129 Company Confidential...
If however you are able to get the phone to boot up and can reach Phoenix BB self tests it is possible to test the functionality of each component attached to Cbus. Use Copyright 2003 Nokia Corporation. Page 6(b)-130...
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UPP WD2 end it is 1.8V. MBUS traffic between UPP WD2 and UEM can be tested with PHOENIX (ST_MBUS_RX_TX_LOOP_TEST). Flashing is not possible if there is a problem in MBUS. Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-131...
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'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! Copyright 2003 Nokia Corporation. Page 6(b)-132 Issue 1 09/2003 Company Confidential...
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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 Copyright 2003 Nokia Corporation. Issue 1 09/2003 Page 6(b)-133 Company Confidential...
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BT Box? using 'BT ONLY' Does VBBEN Check VEMRST / R436 UEMRST 1.4 - 4.0 VDC? 1) Replace BT MCM 2) Flash Phone Ýes BT OK! using 'BT ONLY' Copyright 2003 Nokia Corporation. Page 6(b)-134 Issue 1 09/2003 Company Confidential...