Nokia 5510 Troubleshooting Manual

Also see for 5510: User guide Owner's guide Repair hints

Contents

Nokia 5510 Troubleshooting Manual Manual pdf 31 page image

PAMS Technical Documentation RF TroubleshootingNPM-5Dr Ixvh8hv Qhtr" Uiyruvt puh s BTH( rprvrAvtr!")@BTHAhrrBTH( Tvthy huArhrhpvtvvvhxurvthyhusurBTH(rprvrUurprphirtrqviypxhqqhhuirySYUY TvpuAurhrhhqurSAvthyvyrhqurSYUYvpua$!Apply -80dBm942.667MHz signal fromgenerator to antennaconnectorOscilloscope at RXISignal 950mVppDC offset 1,1VFrequency 67,7kHzEGSM chain functionalOscilloscopeVRX 2.7VCheck Hagar serialinterfaceYesYesYesSpectrumanalyzerGSM LNA out-73dBmNo NoSpectrumanalyzer1st Dual SAW In1-85dBmGSM_RX_SW-84dBmNoSpectrumanalyzerT501, unbal-75dBmCheckC534, Z500NoYesCheck HagarN500YesCheck BBNoOscilloscopeLNA_G 2.4-2.8VLNAB_D 2.4-2.8VYesCheck RX/TXSwitchZ502NoCheck 1st DualRX SAWZ501YesEGSM Fault treeNoOscilloscopeV501, RFout 2.1-2.2VV501, RFin 0.8-0.9VYesOscilloscopeVRX 2.7VCheck Hagar serial interfaceCheck HagarN500YesCheck BaseBandNoCheckR514, C539,V501,C541,C537,C533NoCheckV501YesChange generatorlevel to -55dBm Yes2 2 2 2INP_P_RXINM_P_RXAnt SwitchRXRXTXTX INP_G_RXINM_G_RXDNC2DNC2LNA_P /LNAB_GRXQRXIOUT_BB1_IOUT_BB1_QI_DCN2_II_DCN2_QC1_BB1_IC2_BB1_IC2_BB1_QC1_BB1_QCp_f_ICm_f_ICp_f_QCm_f_QCp_dtos_ICm_dtos_ICp_dtos_QCm_dtos_QLast edit 07:49 15.03.00HDa12 RF Troubleshooting.doc0-40dBBB_Gain0-40dBBB_GainDtoSDtoSBIQUADBIQUADGSMPCNVRF_RXVREF_RXVB_EXTRB_EXTRFControlsLNA_G /LNAB_D8 / 18 dB8 / 18 dBSAW SAWLNALNAHagarVRF_RXVREF_RXVREFRXIRXQVCP22