Samsung SGH-X140 Service Manual

Also see for SGH-X140: User guide

Contents

SAMSUNG Proprietary-Contents may change without noticeSGH-X140 Flow Chart of Troubleshooting2-13This Document can not be used without Samsung's authorization2-2-4. DCS TXU402 pin 11 :about 2~3dBm?C407,CN401check&changeU402pin9 : 2.8 V? U101check & changeU403 pin10 :about 4~5dBm?U402check & changeU403pin5 : 3.7 V?NO NOYESYESYESNONO BATTERYcheck & changeU403pin 4 : 1.4V ?YESNOU403 pin9about : -5dBm ?YESU403pin 6 : 3V?YESYESU403change or resolderNOU101checkU701checkNOU404pin9,32 : 2.8V ?U101 pinA13,C111change or resolderYESU404pin8 : 13MHz ?Vp-p : 950mV?U404pin4,5,6,7:100mV?YESU101change or resolderNONOU404change or resolderYESNO OSC401change or resolderCONTINUOUS TX ON CONDITIONCH : 698CH(DCS)TX POWER CODE: 520 CODE ApliedRBW : 100KHzVBW : 100KHzSPAN : 10MHzREF LEV. : 10dBmATT. : 20dB