Samsung SGH-i320 Service Manual

Also see for SGH-i320: User guide

Samsung SGH-i320 Service Manual Manual pdf 74 page image

SAMSUNG Proprietary-Contents may change without noticeFlow Chart of Troubleshooting and Circuit Diagrams10-25This Document can not be used without Samsung's authorization10-2-3. DCS ReceiverContinuous RX onRFinput : 698CH AMP :-50dBmNoYesYesNoYesYesYesCheck UCD701U903 check or resolderUCD701 pin B10, C736Check or resolderTCX901 change or resolderC907, R902check or resolderNoNoU903 checkpin 25,26,27,28Vp-p : 100mVU903 checkpin 1,8,31,36,41clean 2.8VNoNoUCD701 pin A13,C735check or resolderTCX901 checkpin 4 = clean 3V?TCX901 checkpin3 = 26M ?Vp-p : 1VU903 checkpin 35 = 26M ?Vp-p : 860mVC922, L905, L906resolder or changeNoU903 checkpin 4,5 = -65dBmYesF901 resolder orchangeNoF901 checkpin 3,4 = -65dBmYesRFS901 resolder orchangeNoF901 checkpin13 = -65dBmYesCheck soldered statusof C916,L901NormalCondition catchthe channel?Yes