Samsung opr09AA6 free download

File name opr09AA6.pdf

5 Troubleshooting 5-1 No Power Does proper DC 14 V appear at No Check SMPS PCB and adapter. DC jack connected to CN12? Yes Does proper DC 5 V No Check IC11. appear at Pin 2 of IC11? Yes Does proper DC 14V No Check IC11. appear at Pin 1 of IC11? Yes Does proper DC 3.3 V appear at No Check IC14. Pin 3 of IC14? Yes Does proper DC 2.5 V appear at No Check IC109 and IC17. Pin 4 of IC109 and IC17? Yes Check IC23. LW15E33C/LW17E34C 5-1 5 Troubleshooting 5-2 No Video (PC Signal) Power indicator is green. Yes Does the signal appear No at IC134, IC135, IC136 Check CN11. of R, G, B input? Yes Does the clock pulse No Check X21 and related circuit of X21. appear at X21? Yes Does the clock pulse appear at output of 15" No Check related circuit of IC32. 17"? Yes Does the clock pulse appear at No Replace 15" output of 15" 17". 17"? Yes Replace LCD panel. 5-2 LW15E33C/LW17E34C 5 Troubleshooting 5-3 No Picture (TV, Video, S-Video) Check Pin 55, 56 (S-Video) and Pin 52 (VCR) and Pin 74 No Check CN41 (Tuner) and and Pin 53 (RF-CVBS) CN26 (VCR connector). of IC401 (VSP9407). Yes Does the signal appear at No Check IC401 (VSP9407) RA33, RA34, RA311, RA312? and related circuit. Yes Does signal appear at 15" No 17" Check IC32 and related circuit . of related IC32? Yes Check IC61, 62 and 15"