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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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Admiral TV GOJ12390 no video or audio. HV Okay but...
Any one have any tips for an Admiral TV with no video or audio? MODEL
NUMBER GOJ12390 The filaments are lit up, I have high voltage, screen voltage, and when I turn up the screen control up I get a raster with retrace lines across the screen, The picture tube checks Okay, but the video input line to my output transistors is missing the composit signal. Thanks, Dave |
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Dave wrote: Any one have any tips for an Admiral TV with no video or audio? MODEL NUMBER GOJ12390 The filaments are lit up, I have high voltage, screen voltage, and when I turn up the screen control up I get a raster with retrace lines across the screen, The picture tube checks Okay, but the video input line to my output transistors is missing the composit signal. Thanks, Dave Thanks to my friend Les, after several hours of trouble shooting, this television set is now fixed. What he found was that the 9 volt regulator, IC601 was defective. Dave |
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