SAMSUNG Proprietary-Contents may change without noticeFlow Chart of Troubleshooting10-37This Document can not be used without Samsung's authorization10-2-5. DCS/PCS TX(1)CLP400 Pin#13About 2~3 dBm?NO(14)(3)NOU402Check & ChangeCLP400 Pin#3(C423) = High?YESCheck cable from antenna to ANT400Check Antenna to cable contactCheck soldered status of L407, L401, C412, ANT400(2)(4)YESLevel of CLP400Pin#7 (C437) is4~5dBm ?NO(1) YESContinuous TX ON conditionTX Power Code : 500 code AppliedCH : 62RBW : 100KHzVBW : 100KHzSPAN : 10MHzREF. Level : 10dBmATT. : 20dBCLP400Check & Change(5)NO Check theBattery BlockC446= 3.7V?(7)(6)YESCheckU402 TXP(R426) OK ?NONO U402Check & ChangeLevel of PAM400Pin #1 is1.2V?YESYES(6)(6) NOChange PAM400PAM400 pin#1About -5 dBm?YES(9)(8)C417,C431,C449,C447,C430Check or resolderU402 Check Pin#1,#8,#16,#22,#31,#48=Clean 2.9V?NOU402 CheckPin#28,29,30,54=100mV?(8) NO(11)(10)(10)YESC404,R401resolderU402 Check Pin #34(R401) :26MHz ? Vpp : 1.2V?NONO R401 = 26MHz ?Vpp : 1.2V?(12) U402Change or resolder(8)YESYESNOR400 = 2.8V ?YES(13)TCX401Change or resolderCheck U402