Samsung i640 Service Manual
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Contents
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SAMSUNG Proprietary-Contents may change without noticeFlow Chart of Troubleshooting9-46This Document can not be used without Samsung's authorization9-14. WCDMA 2100 ReceiverRX ONSector Power = -50dBmU100 pin11>=-65dBmResolder RFS100,C104,L100,R100, C105U100 pin9>=-70 dBmNoYesNo CheckU100 truthtableCheckR106,R109,R118,UCP200NoResolder orChange U100Resolder or ChangeDUF100, L126,C171YesNoYesCheck U101 & UCP200CheckC148, C153, L113, L116F102, L114, C152, L115ENDDUF100 pin2>=-75 dBmYesNoNoU101 pin26>=-75 dBmYesU101 pin29>=-75 dBmYesU101 pin34,35>-75dBmYesResolder or ChangeC174, L128NoResolder or ChangeU101Pin#6: HighPin#5: LowPin#4: High |
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