Samsung SGH-E400 Service Manual

Also see for SGH-E400: User manual User guide

Contents

SAMSUNG Proprietary-Contents may change without noticeSGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams4-15This Document can not be used without Samsung's authorization6. PCS TransmitterF1002 pin 13about 2~3 dBm?F1002pin 9 : 2.8 V?U1001 pin 11pin 3~4dBm?U700,U702check & changeF1002check & changeCN1001check & changeU1001pin 4 : 3.7 V? BATTERY, U100check & changeU1001pin 5 : 3 V?U1001pin 2, 3 : 3 V?U1001pin 6 : 1.2 V?U1001 pin 1about : -5dBm?U1001change & resolderU700check & changeU901pin14,23,26,32 :2.8V?U901pin9,10,12,13 :-20dBm?U902pin 7 : 13MHz?Vp-p : 950mVU902pin9,10,11,13 :3V?U901change or resolderU901pin5,6,7,8:1.7V:U1001check & changeU700changeU100pin46,C114change orresolderU700check &changeU100 pin39,c116change or resolderOSC801pin 3 : 13MHz?Vp-p : 950mVOSC801pin 4 : 3V ?U902change or resolderU901pin5,25,28 :3V?U100pin39,c116change orresolderOSC801change orresolderNO NONONONONONONONONO NONO NONONONOYESYESYESYESYESYESYESYESYESYESYES YESYESYESYESYESCONTINUS TX ON CONDITIONMS TX level 12CH : 698RBW : 100KHzVBW : 100KHzSPAN : 10MHzREF LEV. : 10dBmATT. : 20dB