Samsung samsung sp15so chassis la15s51b lcd tv sm 168 free download

File name samsung_sp15so_chassis_la15s51b_lcd_tv_sm_168.pdf

TFT-LCD TV Chassis Model SP15SO LA15S51B SERVICE Manual TFT-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 12. Panel Description Samsung Electronics Co.,Ltd. - This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Samsung Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be Printed in Korea punished under applicable International P/N : BN82-00131F-00 and/or domestic law. URL : http://itself.sec.samsung.co.kr/ 1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings 1. For continued safety, do not attempt to modify the circuit board. 2. Disconnect the AC power and DC Power Jack before servicing. 1-1-2 Servicing the LCD Monitor 1. When servicing the LCD TV Disconnect the AC line cord from the AC outlet. 2. It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of this meter periodically. 1-1-3 Fire and Shock Hazard Before returning the LCD TV to the user, perform the Figure 1-1. Leakage Current Test Circuit following safety checks: 1. Inspect each lead dress to make certain that the leads are 4. With the unit completely reassembled, plug the AC line not pinched or that hardware is not lodged between the cord directly into a 120V AC outlet. With the unit's AC chassis and other metal parts in the LCD TV. switch first in the ON position and then OFF, measure 2. Inspect all protective devices such as nonmetallic control the current between a known earth ground (metal water knobs, insulating materials, cabinet backs, adjustment pipe, conduit, etc.) and all exposed metal parts, and compartment covers or shields, isolation resistor- including: metal cabinets, screwheads and control shafts. capacitor networks, mechanical insulators, etc. The current measured should not exceed 0.5 milliamp. 3. Leakage Current Hot Check (Figure 1-1):