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File name M113_Service_Manual.pdf

SERVICE MANUAL M113 (SUPER ONE CHIP) TCL TECHNOLOGY 101010101 101010101 1010 1010 Yours 100011010101 digital WORLD 11101100011 11101100011 101010 101010 Part Servicing Precautions 1 Part Product Specification 2 Part Brief Introduction On Chassis 4 Part IC Pin Description 7 Part Adjusting Description 61 Part Troubleshooting 70 Part Spare Parts List 75 Part Working Guide 84 Part Technical Support List 85 TCL OVERSEAS MANUFACTURING MANAGEMENT DEPARTMENT Welcome to www.tcl.com.cn SERVICE MANUAL M113 (SUPER ONE-CHIP CHASSIS) Consultants: Guanghui Yu Sansui Zhang Dongju Wu Duncan Zhai Editors Lexus Sun Bin Wu Guobiao Chen Alice Peng TCL M113 Chassis Service Manual SERVICE MANUAL FOR M113 CHASSIS PART I. Servicing Precautions When working, the unit is with ultra high voltage about 25KV inside. So, to avoid the risk of electric shock, be careful to adjust the chassis! 1. Only qualified personnel should perform service procedures. 2. All specification must be met over line voltage ranger of 110V AC to 240V AC 50Hz/60Hz. 3. Do not operate in WET/DAMP conditions. 4. Portions of the power supply board are hot ground. The remaining boards are cold ground. 5. Discharge of CRT anode should be done only to CRT ground strap. 6. When fuse blow, ensure to replace a fuse with the same type and specification. 7. Keep the wires away from the components with high temperature or high voltage. 8. When replacing the resister with high power, keep it over the PCB about 10mm. 9. The CRT anode high voltage has been adjusted and set in the factory. When repairing the chassis, do not make the high voltage exceed 27.5KV (The beam current is 0uA). Generally, the high voltage is set on 25.5KVЎА 1.5KV (The beam current is 700uA). * The values of parameters above are for information only. 10. Before return the fixed unit, do check all the covering of wires to ensure that not fold or not short with any metal components. Check the entire protection units, such as control knobs, rear cabinet & front panel, insulation resister & capacitor, mechanical insulators and so on. 11. There are some mechanical and electrical part