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File name KEYMAT Ch. ST-V02_06 ST92195 (N903).pdf

ST V02/06 COLOUR TELEVISION SERVICE MANUAL 1 CONTENTS 1. Safety Precautions... 3 2. MCU and signal Processor for a PAL/NTSC/SECAM TV... 4 3. Definition of ST92195 Pin... 5 4. Definition of STV2248 Pin... 6 5. Remote Control Circuit Diagram and Function... 7 6. Service Controlled Function... 8 1)Service RGB adjustment... 8 2)Service1 adjustment... 8 3)Service2 adjustment... 9 4)Service3 adjustment... 10 7. Service and Design Data... 12 8. ICs Functional Description... 13 9. Test Point Waveforms... 14 10. IC Voltages... 14 11. Other... 15 2 1. SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only. Alterations of the design or circuitry of the products should not be made. Any design alterations or additions will void the manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the parts list in Service manual.