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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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#1
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I have a ProScan 60" rear projection TV sold under the RCA brand name. It
has been professionally repaired once with a replacement of a "flyback" and a "capacitor set". It is 5 years old, and the former repairs were performed 11 months ago. My current experience with the TV is as follows: The TV will work normally for about a week, and then it will stop responding to the power button on the front control panel and the remote control. You also do not hear any of the telltale signs that power has been activated such as components charging up and (I believe) a relay triggering. If you unplug the TV for approx. 24 hours and then plug it back in it will operate normally for the next 1 to 7 days, then it will begin a similar cycle. Intermittently, it will lose audio during its time of "normal" operations (which I usually don't notice because I tend to use the TV for video only). I shy away from professional repair because the last professional repair cost me over $450 and I don't think the TV is worth too much any longer. Any suggestions on repair (self or suggested service) are appreciated. I have done basic circuit board soldering and de-soldering, but do not have any skills in circuit tracing, etc |
#2
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![]() wrote in message .. . I have a ProScan 60" rear projection TV sold under the RCA brand name. It has been professionally repaired once with a replacement of a "flyback" and a "capacitor set". It is 5 years old, and the former repairs were performed 11 months ago. My current experience with the TV is as follows: The TV will work normally for about a week, and then it will stop responding to the power button on the front control panel and the remote control. You also do not hear any of the telltale signs that power has been activated such as components charging up and (I believe) a relay triggering. If you unplug the TV for approx. 24 hours and then plug it back in it will operate normally for the next 1 to 7 days, then it will begin a similar cycle. Intermittently, it will lose audio during its time of "normal" operations (which I usually don't notice because I tend to use the TV for video only). I shy away from professional repair because the last professional repair cost me over $450 and I don't think the TV is worth too much any longer. Any suggestions on repair (self or suggested service) are appreciated. I have done basic circuit board soldering and de-soldering, but do not have any skills in circuit tracing, etc It sounds like something relatively simple, if you know what you're doing and have a good eye, look for dry or cracked solder joints around the tuner ground shield (not sure if Proscan PTV's suffer this but direct views certainly do) if it still has the problem then look for the same thing on the power supply board. If you don't know what you're doing I highly suggest having a pro look at it, if the picture is still good when it works it should still have some life left on it, if you poke around without knowledge you could easily do a lot more damage. |
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