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1、 RH-18/36/38 Company confidentialTroubleshooting InstructionsCCS Technical Documentation Issue 1Page 3Baseband troubleshooting.5Baseband test points.5Troubleshooting diagrams.5Phone is dead.6Flash programming do not work.7Power does not stay on or phone is jammed.8Display information:Contact Service
2、.9The phone do not register to the network,or the phone cannot make a call.10SIM related faults.11Insert SIM card fault.11SIM-Card rejected.12Audio related faults 1:Earpiece and microphone.13Audio related faults 2:Headset.14Charging failure troubleshooting.15Charging troubleshooting 2.16General RF T
3、roubleshooting.17RF Key component placement.18RH-36 Receiver troubleshooting.21General Instructions for GSM850 RX Troubleshooting.21Troubleshooting diagram for GSM850 Receiver.22General Instructions for RH-36 GSM1900 RX Troubleshooting.24Phoenix commands.24Troubleshooting diagram for GSM1900Receiver
4、.25Measurement points in the receiver.27RH-36 Transmitter troubleshooting.29Measurement points for the transmitter.29General instructions for RH-36 GSM TX troubleshooting.30GSM850 TX output power.31General instructions for RH-36 GSM1900 TX troubleshooting.32Phoenix commands.32GSM1900 TX output power
5、.32Troubleshooting diagram for GSM1900 TX.33General Instructions for RH-18/38 GSM900 RX Troubleshooting.35Troubleshooting Chart for GSM900 Receiver.36General Instructions for GSM1800 RX Troubleshooting.38Troubleshooting Chart for GSM1800Receiver.39Measurement points in the receiver.40RH-18/38 Transm
6、itter troubleshooting.42Measurement points for the transmitter.42General instructions for RH-18/38 GSM TX troubleshooting.43PCN Transmitter General instructions for PCN TX troubleshooting.45Synthesizer.4626 MHz Reference Oscillator(VCXO).46VCO.46Troubleshooting diagram for PLL Synthesizer.47Phone fa
7、ils after power on.48Measurement points at the VCXO.48Measurement points at the PLL/VCO.49 Issue 1Page 4RH-18/38 Manual Alignment using Phoenix.50RX calibration.50GSM1800 RX calibration.51RX channel select filter.52RX Band Filter Response.53Tx Power tuning.54TX power tuning GSM.54TX power tuning PCN
8、.57I/Q tuning.59RF control.61Call testing.62 CCS Technical Documentation Company confidential RH-18/36/38 RH-18/36/38 Company confidentialCCS Technical DocumentationPhone is deadX105VBAT=3,6VDCNoYesCheck:L260,L261,L262,L263,L264,L265C260,C261,C262,C263,C264,C265Check:X105YesNoJ402PURX=1,8VDC,1 sec.a
9、fter power-keyis pressedL260,L261,L262,L263,L264,L265C260,C261,C262,C263,C264,C265Voltage=3,6VDCR42626 MHz clock min.300mVACpp,probe Cin=10-13 pF/10MC227VR3=2,78VDCJ404Sleep-clock is32.768 kHz,1,8VppCheck:C227,PWB.Else defective D200*Check:PWB.Else defective D200*Check:B200,C209,C210,PWB.Elsedefecti
10、ve D200*NoYesNoYesNoYesYesCheck:C227,PWB.Else defective D200*YesNoCheck:D450(Flash).Else defective D200*CCS Technical Documentation Company confidential RH-18/36/38Flash prgrammingdo not workError from prommer:Phone doesnt setFBUS_TX line lowYesCheck:PWB.Else defective D200*J409,J410,J411,J412 Volta
11、ge level at 1,8VDCCheck:R108,PWBYesNoNoJ396,R108Check connection betweenpad 1,2&3 on J396and R108Try reading MCU IDwith Phoenix.Reading OK?Try reading Flash IDwith Phoenix.Reading OK?Check:Replace D450Check:PWB.Else defictive D400*YesYesNoNoYesReflash phone RH-18/36/38 Company confidentialCCS Techni
12、cal DocumentationPower doesnt stay on,or phone is jammedJ404Sleep clock=32.768 kHz,1.8VppYesCheck:D450,Keymat,Lightguide,PWB.Else defective D400*UI functionality,and keys reactto pressure?Check:PWB.Else defictive D200*YesNoNoJ402PURX=1,8VDC,1 sec.after power-key ispressedCheck:C420,C426,R420,R426,N6
13、00(Mjoelner)YesNoYesReflash phoneCheck:B200,C209,C210,PWB.Else defective D200*NoR42626 MHz clock min.300mVACpp,probe Cin=10-13 pF/10M CCS Technical Documentation Company confidential RH-18/36/38Display showsContact ServiceEarDa&MicDabetweenUPP and UEM?Check:PWB.Else defective D200*or D400*MBUS inter
14、facebetweenUPP and UEM?AuxDa&UEMIntbetweenUPP and UEM?YesNoSleepX&SleepClkbetween UPP&UEM?Key is stuckedTXI/QD&RXI/QD?SIM interface betweenUPP&UEMFlash checksum!ASIC version pilation flag,PMM checksum!PMM validity!Warrenty Information State!SIM-LockReflash phoneCheck:PWB.Else defective D450(FLASH)Ch
15、eck:A-cover,Keymat,Lightguide,PWB.RH-18/36/38 Company confidentialCCS Technical DocumentationPhone do not register tonetworkor phone cannot make a callC230,C231Voltage=1,35VDCAll during GSM frame(call mode)Use TXP on C646 as triggerCheck:C222,C223,C224,C225,C226,C227,PWB.Else defective D200 or D400*
16、J421,J422,J423Check RF serial bus duringGSM-frame:Logic HIGH=1,8VDCLogic LOW=0VDCRFBUSCLK(J421),RFBUSDA(J422),RFBUSEN1X(J423)C222,C223,C224,C225,C226,C227Voltage=2,78VDCAll during GSM frame-call mode.Use TXP on C646 as triggerNoYesCheck:PWB.Else defective D200*or D400*Check:PWB.Else defective D200*o
17、r D400*Check:C230,C231,PWB.Else defectiveD200*or D400*YesNoNoR610,R611Check analog signals duringGSM-frame(TX slot):TXIP/N(R610)=1-1,75VDCTXQP/N(R611)=1-1,75VDCR601,R603Check analog signals duringGSM-frame(RX slot):RXIP/N(R601)=0-1,45VDCRXQP/N(R603)=0-1,45VDCYesYesNoCheck:R610,R611,PWB.Else defectiv
18、e D200*or D400*NoCheck RFYes CCS Technical Documentation Company confidential RH-18/36/38Check for SIM voltage during power-upCh1:VSIMCh2:RESETCh3:CLOCKCh4:DATADisplay shows:Insert SIM CardCheck:X387,R386,PWB.Else defective D200*X387Verify that phone checks for1,8V-SIM,and then 3V-SIMduring power-up
19、.(See illustration below)YesNoYesSIM Interface OK RH-18/36/38 Company confidentialCCS Technical DocumentationNormal SIM power-up sequenceCh1:VSIMCh2:RESETCh3:CLOCKCh4:DATA CCS Technical Documentation Company confidential RH-18/36/38Earpiece do not workCheck:R386,PWB.Else defective D200*NoDefective D
20、200*Z150,R161Check Z150,R161 isworking correctly(no short/open-circuit)Replace:EarpieceYesError still presentMicrophone do not work andthe isnt any mechanicalproblemCheck:R165,C168,PWB.Else defctive D200*NoError still presentR165Check voltage level onR165 towards UEM(bias)=2,1VReplace:Z100YesReplace
21、:System ConnoctorZ100Check Z100 isworking correctly(no short/open-circuit)NoR153Check voltage level onR153 towards mic-lines(bias)=1,0V-1,4VCheck:R153,R157,C151,C152,C153,C154,PWB.No RH-18/36/38 Company confidentialCCS Technical DocumentationHeadset earpiece do notwork and the isnt anymechanical pro
22、blemReplace:C183 and/or Z102Defective D200*R183,Z102Check R183,Z102 isworking correctly(no open-circuit)NoHeadset microphone do notwork and the isnt anymechanical problemReplace:C183 and/or Z102Defective D200*R166Check voltage level on R166towards UEM(bias)=2,1VNoR152,R165,R168,C172,C170,C173,C174,Z
23、101Check XMIC line to UEM(D200)Check:R166,R151,C171R151Check voltage level on R151towards UEM(bias)=1,0V-1,4VNoYesYesError still presentReplace:Defective componentNo CCS Technical Documentation Company confidential RH-18/36/38 Phone is OFF-battery iscompletely empty(2,1VDCNoDefective D200*Yes Phone
24、is ON or OFF-batterynominal voltage(3,6VDC)and no current fromcharger when connectedCheck:F100,L100,V100,C100,R200,System-connector.L100VCHAR 3,6VDCNoDefectiveD200 or D400*Yes RH-18/36/38 Company confidentialCCS Technical DocumentationDisplay info whencharger is connected:Not chargingCheck:X105,R202
25、,R206,C240.R206Voltage on R206 towardsD200 is 0,8VDCwhen power is connected.(BSI must be 75K)NoCheck:PWBYesR207Voltage(use scope)on R207towards D200 is 0,9VDC atpeak.(BSI must be 47K)Check:X105,R202,R207,C220.NoR200Voltage on R200 towardsD200 same as VBAT voltageCheck:R200,PWB.Else defective D200*vR
26、200Voltage rises slowly onR200 towards D200 whencharger is connected.Check:PWB.Else defective D200*NoNoYesYesYes CCS Technical Documentation Company confidential RH-18/36/38 RH-18/36/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidential RH-18/36/38 RH-18
27、/36/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-36.RH-36 Company confidentialCCS Technical DocumentationApply-55dBm942.4 MHzoffset 67.71kHzfrom generator to antenna connOscilloscopeat RX i/Qsignal 588mVppDC offset 1.35VFreq.67.71kHzYESYESNONO
28、YESYESEGSMCheck RX/TXOscilloscopeCheck MjoelnerCheck chainOKswitch atRX900Z700-56dBmcheck VC1 and VC2at Z700Signal=0VRX/TXswitchSpectrum analyzerSpectrum analyzerOscilloscopeCheckCheckEGSM SAW filterZ602output-65dBmNOYESNOYESNOYESSAW filterZ602InductorL603,L602check signal afterinductorsL602 and L60
29、3-65DbMVRX 2.7VCheck MjoelnerserialinterfaceBasebandCheck CCS Technical Documentation Company confidentialRH-36 RH-36 Company confidentialCCS Technical Documentation.CCS Technical Documentation Company confidentialRH-36Apply-55dBm1842.8 MHzoffset 67.71kHzfrom generator to antenna connOscilloscopeat
30、RX i/Qsignal 588mVppDC offset 1.35VFreq.67.71kHzYESYESNONOYESYESEGSMCheck RX/TXOscilloscopeCheck MjoelnerCheck chainOKswitch atRX1800Z700-56dBmcheck VC1 and VC2at Z700Signal=0VRX/TXswitchSpectrum analyzerSpectrum analyzerOscilloscopeCheckCheckPCN SAW filterZ602output-65dBmNOYESNOYESNOYESSAW filterZ6
31、01InductorL601,L611check signal afterinductorsL601 and L611-65DbMVRX 2.7VCheck MjoelnerserialinterfaceBasebandCheck RH-36 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-36 RH-36 Company confidentialCCS Technical Documentation CCS Technical Document
32、ation Company confidentialRH-36RH-36 Transmitter troubleshooting RH-36 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-36 RH-36 Company confidentialCCS Technical Documentation.CCS Technical Documentation Company confidentialRH-36 RH-36 Company confi
33、dentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38.RH-18/38 Company confidentialCCS Technical DocumentationApply-55dBm942.4 MHzoffset 67.71kHzfrom generator to antenna connOscilloscopeat RX i/Qsignal 588mVppDC offset 1.35VFreq.67.71kHzYESYESNONOYESYESEGSMChec
34、k RX/TXOscilloscopeCheck MjoelnerCheck chainOKswitch atRX900Z700-56dBmcheck VC1 and VC2at Z700Signal=0VRX/TXswitchSpectrum analyzerSpectrum analyzerOscilloscopeCheckCheckEGSM SAW filterZ602output-65dBmNOYESNOYESNOYESSAW filterZ602InductorL603,L602check signal afterinductorsL602 and L603-65DbMVRX 2.7
35、VCheck MjoelnerserialinterfaceBasebandCheck CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation.CCS Technical Documentation Company confidentialRH-18/38Apply-55dBm1842.8 MHzoffset 67.71kHzfrom generator to antenna connOscilloscopeat RX i/
36、Qsignal 588mVppDC offset 1.35VFreq.67.71kHzYESYESNONOYESYESEGSMCheck RX/TXOscilloscopeCheck MjoelnerCheck chainOKswitch atRX1800Z700-56dBmcheck VC1 and VC2at Z700Signal=0VRX/TXswitchSpectrum analyzerSpectrum analyzerOscilloscopeCheckCheckEGSM SAW filterZ601output-65dBmNOYESNOYESNOYESSAW filterZ602In
37、ductorL603,L602check signal afterinductorsL601 and L611-65DbMVRX 2.7VCheck MjoelnerserialinterfaceBasebandCheck RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Doc
38、umentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38.RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS
39、 Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentia
40、lRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation CCS Technical Documentation Company confidentialRH-18/38 RH-18/38 Company confidentialCCS Technical Documentation