I recently became the proud owner of a used 20" Norcent LCD TV, model LT-2022A. It used to work great, but then one day I came home and it wouldn't turn on. The screen goes white when you plug it in, and the status LED stays orange. Like the TV is booting up, but never completely 'gets there.' It doesn't respond to remote control or the physical buttons, except for the power button; it makes a strange, soft humming noise for half a second when you press the power button.
I have no clue why it's acting this way; I opened it up and checked the fuse, checked for burn marks, anything that didn't seem right. I found nothing.
Maybe it's the power relay? I don't why that would freak out but it could happen I guess. I'm not sure how I'd test that.
Any suggestions?
TV Won't Start Up?
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HotDog-Cart
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joevennix
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Re: TV Won't Start Up?
joevennix wrote:used 20" Norcent LCD TV, model LT-2022A
Sigh.joevennix wrote:The screen goes white when you plug it in
Re: TV Won't Start Up?
joevennix wrote:I recently became the proud owner of a used 20" Norcent LCD TV, model LT-2022A.
HotDog-Cart wrote:You sure the Tube hasnt blown? Or is it LCD?
Check the power supply, common problem. When ours did that, it turned out to be a dead capacitor.
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HotDog-Cart
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gamemasterAS
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joevennix
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Crap, it wasn't the capacitor, although the one I replaced wasn't working correctly. On closer examination of the video board, I found a scorch mark I hadn't seen before. I took the board off, and saw a matching scorch mark on the metal case. Looks like something melted, shorted with the case, and exploded or something. I think I'll give Norcent a call Monday, let them know how much damage a shorted connection could cause, and see where it goes from there.
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CronoTriggerfan
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Yes, I think we already clarified that.CronoTriggerfan wrote:HotDog-Cart wrote:You sure the Tube hasnt blown? Or is it LCD?joevennix wrote:I recently became the proud owner of a used 20" Norcent LCD TV, model LT-2022A.
CTFan
Usually that happens when something shorts out and one of the power lines traces are left with that scorch.
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joevennix
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Yeah, that's what I figured, but this is on the video board, away from the AC in, away from even where the power board is plugged into the video board. I think something overheated and melted, it looks like it was one of the pins on the RF modulator, since the solder on it was not inside the hole, but rather at the tip of the pin. The molten solder then touched the grounded case, and then it all went to hell.Skyone wrote:Usually that happens when something shorts out and one of the power lines traces are left with that scorch.