Samsung SGH-X630 Service Manual

Also see for SGH-X630: User guide User guide

Samsung SGH-X630 Service Manual Manual pdf 67 page image

SAMSUNG Proprietary-Contents may change without noticeFlow Chart of Troubleshooting10-30This Document can not be used without Samsung's authorization10-2-3. PCS RXContinuous RX ONRF Input : 62 CHAMP : -50dBmNORMAL CONDITIONCatch the channel ?YESNOF100 CheckPin #6 ≥ -65dBm ?F100 CheckPin #8, 9 ≥ -65dBm ?UCD100 CheckPin#10, 11 ≥ -65dBm ?Check soldered status ofR700, C703, C701, L703RFS701, C700Resolder or ChangeF100 Resolder or ChangeUCD100 CheckPin#34 =Clean 2.8V?UCD100 CheckPin#35,36,37,38=100mV?C706, U102Check or resolderCheck U102NONOYESYESYESNOYESUCD100 CheckPin #21 : 13MHz ?Vpp : 1.1V?UCD100Change or resolderNONOYESCheck soldered status ofL708, L709, C721YESNOUCD100 CheckPin#27 =1.8V ?YESCHECK U102NOOSC700 CheckPn#1 : Freq =13MHz,Vpp=1.2V?NOUCD100Check & resolderOSC700Check & resolderYES