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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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KV-32S40 Sound, but No Picture
Hello All,
I have a KV-32S40 and it seems to do what some others posts have described, but i have seen no fix. What happens is when the set is on, the bottom corner of the screen will move towards the center. In kind of a bow tie then poof it's gone and the screen is dark. There is sound during this, and i can change the channels ect. Now most of the time the lil red light in the front will blink with a constant frequency. I am sure there is no diagnostic blink on this old model. I looked and did the normal re-soldering of the whole horizontal and flyback circuits. I noticed that a mylar .047uF 200V cap next to the horizontal drive transformer was brown. It was changed and that didn't help. Seems like there is HV because there is a high pitch sound when the power it turned on, and a noticeable static build up on the surface of the CRT. Any help on this would be great!!!! Thanks!!! -Stephen |
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