Samsung LW15E23CX XEF.0000042107.E.09 free download

File name LW15E23CX_XEF.0000042107.E.09.pdf

5 Troubleshooting 5-1 No Power Does proper DC 14 V appear at No Check SMPS PCB and Adapter. DC jack connected to CN801? Yes Does proper DC 5 V appear at No Check IC803. Pin 1 of IC803? Yes Does proper DC 14V appear at No Check IC803. Pin 2 of IC803? Yes Does proper DC 3.3 V appear at No Check IC804. Pin 1 of IC804? Yes Does proper DC 2.5 V appear at No Check IC105. Pin 4 of IC105? Yes Check IC908. ES15A*/ES17A* 5-1 5 Troubleshooting 5-2 No Video (PC Signal) Power indicator is green. Yes Does the signal appear No at C106, C107, C108 Check CN100. of R, G, B input? Yes Does the clock pulse No Check X100 and related circuit of X100. appear at X100? Yes Does the clock pulse appear at No Check related circuit of IC102. output of RA102 ~ RA107? Yes Does the clock pulse No Check R401 and related circuit of R401. appear at R401? Yes Does the clock pulse appear at No Replace R605 ~ R604. output of R605 ~ R614? Yes Replace LCD Panel. 5-2 ES15A*/ES17A* 5 Troubleshooting 5-3 No Picture (TV, Video, S-Video, Scart Video) Check Pin 71, 72 (S-Video) No Check the CN806 (Tuner) and the and Pin 73 (VCR) and Pin 74 CN200 (Scart connector) and the (Scart-Vin) and Pin 75 (RF-CVBS) CN802 (VCR connector). of IC201 (VPC3230D). Yes Does the signal appear at No Check the IC201 (VPC3230D) RA200 ~RA203? and related circuit of IC201. Yes Does the signal appear at No Check the IC300 and RA300 ~ RA303 of related