Samsung samsung vn32eo chassis lw32a23w lcd tv sm 172 free download

File name samsung_vn32eo_chassis_lw32a23w_lcd_tv_sm_172.pdf

LCD-TV Chassis Model VN32EO LW32A23W VN40EO LW40A23W SERVICE Manual LCD-TV CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8. Block Diagram 9. Wiring Diagram 10. PCB Layout 11. Schematic Diagrams Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea,442-742 Electronics Co., Ltd. Printed in Korea Any unauthorized use of Manual can be punished P/N : BN82-00097D-00 under applicable International and/or domestic law. URL : http://ecms. samsungelectronics. com/ 5 Troubleshooting 5-1 No Power Does proper DC 6V appear at No WAVEFORMS 1 Check sub power PCB. Pin 1 of power S/W board CN130? 1 DC 6V Yes Does proper DC 6V appear at No 1 Check S/W board ass'y. Pin 3 of input board CN144? Yes 2 DC 5V Does proper DC 6V appear at No 1 Check input board. Pin 3 main board CN505? Yes 3 DC 3V Does proper DC 5V appear at No 2 Check IC800 and main power. Pin 4 main board IC800? Yes Does proper DC 3 V appear at No 3 Check IC952, IC955 and IC958. Pin 3 main board IC801? Yes Check IC917, IC902, IC901 and IC900. LW32A23W/LW40A23W 5-1 5 Troubleshooting 5-2 No Video (CVBS) The power LED turns green. Does proper signal appear at No 4 Check cable and input board. Pin 26 of input board CN136? Yes Does proper signal appear at No 4