Panasonic KX-TDA0155CE Service Manual

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Panasonic KX-TDA0155CE Service Manual Manual pdf 19 page image

19KX-TDA0155CE7 Troubleshooting Guide7.1. Portable Station (PS) Cannot Register to Cell Station (CS) or PS Doesnot Link CS.3.2V2.1V1.6VIC104 pin36PDRIC104 pin37PDRHIC104 pin35PDRL1.8V5.25V1.8V IC100 pin 120BBRSTDCDCOUTIC105 pin 1IC101 pin26ACS0IC101 pin28RDNIC101 pin34D[10]3.2V3.2V3.2V3.2V3.2V3.2VIC104 pin2CS_ECOIC104 pin3RDNIC104 pin64D[0]3..2V3..2V3..2VIC102 pin6ACS1IC102 pin41RDNIC102 pin8D[1]1 2Check CS status by LEDGREEN ONRed FlashingCheck CS status "INS" by PC programming.Check cabling between CS and ExtentionCard Replace cableCheck GA_CLK (16.384MHz).Set a range to 16.384 MHz 2 kHzCheck solder condition about X101, R205R206, C205, C206.Replace X101 if soldering is OK.Check solder condition about X100, C427Replace X100 if soldering is OK.Check SCLK-BB(10.368MHz).Set a range to 10.368 MHz 10 HzCheck BB_RSTN (pin 120 of IC100).Check solder condition about IC105, R404,C410, C400, Q400, Q401, R400, R403.Replace IC105 if soldering is OK.Supply the power from AC adaptor and Power Supply Adaptor. Refer to 6.2. Initial Setting.Set DIP switch pin 5 from OFF to On.Check Version by service JIG cable.If OK, BBIC(IC100) is OK..(Refer to Section 9.1.3.)Check voltage pin 6 7-10 13-16 29-3235-38 41 of IC102 (ACS1 RDN D0-15 )Check voltage pin 2 3 57-64 of IC104.(CS_ECO RDN D0-7)Set all DIP switches OFF.Connect to PBX.Check voltage pin 35,37of IC104(PDRL,PVRH)Check solder condition about R238, R239R240, C213, C214.Check voltage pin 36 of IC104 (PDR) Check solder condition about T101, R230R231, R232.Check solder condition about IC100,R422, R423.Replace IC100 if soldering is OK.Check solder condition about IC102, R743.Replace IC102 if soldering is OK.Check solder condition about IC104, R234.Replace IC104 if soldering is OK.Change CS status to "INS" by PCProgramingConnect CS to PBXCheck Voltage of Trangistor(Q450) Base isis 3.2VCheck Voltage of Trangistor(Q451) Baseis 0VCheck Cathode of LED(D451) is 0VCheck Cathode of LED(D453) is 3.2VJump to flowchart of"Check DC voltage" Jump to flowchart of"Check DC voltage" Check solder condition about pin 90 ofIC103, R441.Replace IC103 if soldering is OK.Check solder condition about pin 91 ofIC103, R446.Replace IC103 if soldering is OK.Check solder condition about D451, R443,R445, D450 and Q450.Replace Q450 if soldering is OK.Check solder condition about D453, R448,R450, D452 and Q451.Replace Q451 if soldering is OK.Supply the power from AC adaptor andPower Supply Adaptor.Refer to 6.2. Initial Setting.Set DIP switch pin 5 from OFF to On.Check voltage pin 26, 28 of IC101.(ACS0, RDN, D0-15)Fig.1 Reset signal (start up)Fig. PBX receive signal (1)Fig. IC101(F-ROM) accessFig. IC102(SRAM) accessFig. IC104(GIA) accessRed ONOFF"INS""OUS"OK NGNGOKOK OKOKOKOKOKOKOKOKOKOKOKOKOKOKNGNGNGNGNGNGNGNGNGNGNGNGNGNG