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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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Posted to sci.electronics.repair
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Hi,
This is my first post to the forums although I used to read them when I was working for Toshiba and I wanted to read the latest gossip about whatever products we were working on.. I bought a Toshiba 36AFX61 Digital CRT about 2 years ago from Toshiba. (refurb, probably a bad idea). Anyway, it has developed a really annoying problem. After watching TV for 15-20 minutes, it starts emmitting a loud high pitched noise. It is about as loud as the volume so it's pretty difficult to ignore. In fact, I can hear it in the next room as I sit here and type. It's pretty much constant although it drops out for a few minutes from time to time. If I turn it off and turn it back on, the high pitch noise comes right back. I tried turning off the sound, so I know that it's not coming from the speakers and I tried changing inputs/unplugging inputs to see if it was related to any of those comopnents, but no luck. I think it may have to do with the video display because the noise fluctuates when the picture changes drastically. I tried to get it repaired by some cheap guys in my area. It took them a month to finally fix it because supposedly the part, which was some audio component, was out of stock. The guy said they usually stop selling parts for TV's after they are 5 yrs old and this TV is about 5 yrs old. They eventually found a used part and sold it to me at a discount. The TV worked fine for about a month, but eventually the noise came back. Pretty much snake oil. It was gradual at first and for a while I could slap the side of the TV set and it would go away. However, before long, the bane of my TV watching was back again in full force. So, now I have to look into either shelling out some serious cash to get it fixed by an authorized repair dealer or buy a new TV. At $75 just to get it looked at, I'm reluctant to take it in unless I know i'll get some results. Being an older TV, does the problem sound remotely fixable? Any idea what the issue might be? Thanks, Garret Hamann |