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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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Zenith Pip System 3, blank screen, but sound and menu work
I got a Zenith TV with a blank screen problem.
WHen cold, the TV would start fine, then after a few minutes, the picture would blank out (a blank screen.) The sound still works, and the menu, volume, channel info can still be displayed on the screen, but I have picture. The problem use to be fixed by powering off/on the tv. The blank screen would come on intermittently. Well tonight, the picture went blank, and I couldn't get it back on. So I let the TV sit off for 20min off while I did some googling on the net searching for an answer (that's how I found this forum.) After 20min, when I turned the TV on, it worked for another 10minutes, then went out blank again after a minute or so. I haven't been able to get a picture back since. I am thinking it is a bad cap (just a case), I'll take it apart tomorrow and test some di-electric caps around the board with my scope. Anyone have suggestions that maybe the cause of the problem? The Zenith TV is a PIP SYSTEM 3, Model SR2573DT, serial 522-454-80230. It was built in 1995. Thank you. |
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