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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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9" RCA tv/vcr combo model:T09085,chassis:M5B09
Your description does not show any information about the actual performance
of the set. It would be difficult to have an accurate answer over an email. The procedure I would follow is to get the service manual for the set, verify the power supply performance, and then verify the supply to the tuner and IF sections. If this all conforms properly, I would put in a TV RF test signal in to the tuner and scope the signal through to see if it meets proper specs. It is possible that there is a fault in the tuner, or IF sections, just to begin with. Concerning your question, I would suggest you give the set out to a service centre to have a proper estimate done, so you can make an intelligent decision about repairing the set or not. -- Jerry G. GLG Technologies GLG ========================== "Sidney" wrote in message om... 9" RCA tv/vcr combo model:T09085,chassis:M5B09,year:Oct 2002,UL listed:289X (Orion,Emerson).No video from tuner or tape playback,tv has raster but a dark snowy (barely visible) picture is present during tuner or tape playback. When using the rear RCA output jacks during a tape playback the picture is snowy but the picture is perfect when using the tuner and the rear RCA output jacks. This tv uses the following parts: Flyback # FQI10B001 Flyback # 3210013 Flyback # Samsung T20921 Yoke # MDC-1090M0 Q406=2SD2627 IC302=KIA78R05API (4 pin) Orion crt I check the IC 302=5 volt reg and it was fine,anyone have any common repair tips before I spend hours troubleshooting.Thanks in advance. Sidney Dartmouth,Nova Scotia Canada |
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9" RCA tv/vcr combo model:T09085,chassis:M5B09
The way you describe it the tuner looks ok and the snowy picture during
tape playback can be a dirty head or something wrong with the head, you might want to check main power supply sources and or if or video circuits. "Sidney" wrote in message om... 9" RCA tv/vcr combo model:T09085,chassis:M5B09,year:Oct 2002,UL listed:289X (Orion,Emerson).No video from tuner or tape playback,tv has raster but a dark snowy (barely visible) picture is present during tuner or tape playback. When using the rear RCA output jacks during a tape playback the picture is snowy but the picture is perfect when using the tuner and the rear RCA output jacks. This tv uses the following parts: Flyback # FQI10B001 Flyback # 3210013 Flyback # Samsung T20921 Yoke # MDC-1090M0 Q406=2SD2627 IC302=KIA78R05API (4 pin) Orion crt I check the IC 302=5 volt reg and it was fine,anyone have any common repair tips before I spend hours troubleshooting.Thanks in advance. Sidney Dartmouth,Nova Scotia Canada |
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