[Shop-talk] Fixing LCD TVs

[Pat Horne]

Jim,

It may (probably) blown. I'v seen cracks like this on older sets that are working fine. I'd replace it though, shouldn't be expensive. 

Peace,
Pat

Pat Horne 
We support Caldwell County Habitat for Humanity


On May 1, 2016, at 4:42 PM, Jim Franklin <jamesf at groupwbench.org> wrote:

According to shopjimmy.com (parts purveyor) this isn't too hard. I have a "free" LCD that the picture suddenly went out on while in use. Reportedly still had sound, but since the sound input source is menu driven, and I can't see the menu, I have not yet been able to have it spit out sound.

The above webpage says if you can see the menu display in a dark room with a flashlight pointed at the screen, the problem is the inverter board. I replaced it for $40 and...no change. So now I'm thinking it's the power supply to that board.

The low voltage cabe tests fine. There's a high voltage line with no specs so I can't test it. But there's a capacitor right next to the transformers that looks like this:

http://groupwbench.org/InsigniaCap.JPG

Is that blown, or just poorly covered?

The power supply is out of stock, probably permanently. 

jim
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