手机修理培训

1.GPIBGPIBPCGPIBNI-488.2CMU200KEI2303GPIPGPIBGPIB1.1•PCB••a•bb••c••PCBPCBPCBPCBPCBPCB•12VREF3TXAFCPOWERTX_POWERPOWER_RAMPPOWER_SCALE4RXIQRSSI56•d•PC••RFcable2GSMa200KHZ(TDMA)25KHzb45KHzcdePCM8KHZ/S13KHZ/Sfg3.3.19980WAVECOM999D999D82.4ADI3.2(RF)3.2.1GSM(GlobalsystemforMobilecommunication)CDMA(CodeDivisionMultipleAccess)TDMA(TimeDivisionMultipleAccess)FDMA(FrequencyDivisionMultipleAccess)GPRS(GeneralPacketRadioService)MMI(Man-Machineinterface)-GMSKPHS(PersonalHandy-PhoneSysem)3.2.2(RF)(BER)(RXsensitivity)(RF102dBmBER2)(Frequcney)(ARFCH)(Phase_Peak)GMSK(MODSPEC)(Switchspec)()3.3GSM162124DCS512700885TXPOWERRXLEVELPOWER_RAMPPH_RMSFREQUENCYRX_QUALPhase_Peak()MODSPEC()SwitchSPEC()GSMTX(Channel:1Power:5Signal:-60.5)//,5,-60.5dBmAV_POWER(33.0+/-4dBm):31.7//,33.0+/-4dBm,31.7POWER_RAMP:Match//PH_PEAK(-20--20):5.4//,-20+20PH_RMS(-5--5);2.0//,-5+5FREQUENCY(-90--90Hz);-29.7//,-90Hz+90HzRX(Channel:1Power:5Signal:-60.5)//,5,-60.5dBm.RX_LEVEL(50+/-4):52//,50+/-4dBmRX_QUAL(=0):0//BER(2.4%)0.254//,2.4%Comm_Current(100~450mA):193//,100~450mAIdle_Current(1~150mA):68//,1~150mA1FixerFixer(TX)(Rssi)(AFC)IQIMEIADIFixer1.3IQAB()CGSMDAC2REGISTERVALUERSSIDGSMDCoffsetREGISTERVALUERSSIEDCSDAC2REGISTERVALUERSSIFDCSDCoffsetREGISTERVALUERSSIAFCAFC()ABCAFCDACABC-85dbm,GAINa05(max)RSSI0~-10-8516GainMax.D-65dbm,GAINla05(middle)RSSI0~-10-6516GainMaxGainReducE-35dbmGAIN1005(min)RSSI-25~35()NVRAM()22.1100MHZ150MHZ200MHZ150M2.23CMD55CMU20044008960CMU200CMU200CMD554400CMU200CMU200CMU200(TESTModes)GSM---“”---CMUGSM(SignallingMode):GSMGSMDCSDCSConnection112Connection参照测试标准，得出手机的性能指标SETUP: