Repairing the video board on an LG 26LX1D

[lkvee]

Got the TV from Freecycle. The power board had a shorted capacitor (the C126 at 47 uf and 50V). Replaced that and got power and a signal.

Component, composite, and RGB (VGA) signals are noisy (slightly fuzzy). I couldn't even test it with my XBox 360 composite cable (Invalid Format message). HDMI looks great.

I read about someone replacing the capacitors on the video board:

http://s807.photobucket.com/albums/y...3DDSC01913.jpg

OR http://tinyurl.com/3qegqfl

I see surface-mounted caps, too. I don't have any experience with removing or replacing them. I'm grateful for this URL because I've been calling them polymer capacitors up until reading that page:

http://capacitorlab.com/capacitor-ty...-smt/index.htm

I'm also reading up on removing and replacing these types of capacitors here:

http://www.co-bw.com/DIY_Replacing_SMD_capacitor.htm

Can I get a clean-enough signal by just replacing the electrolytics and leaving the surface-mounted capacitors alone?

[Th3_uN1Qu3]

Re: Repairing the video board on an LG 26LX1D

Can I get a clean-enough signal by just replacing the electrolytics and leaving the surface-mounted capacitors alone?

No idea, but you can try and find out. The surface mounted capacitors are either ceramic (if they're small and light brown with nothing printed on them), or tantalum, which are larger in both size and capacity, and have values printed on them. Tantalums are more likely to fail than ceramics.

[lti]

Re: Repairing the video board on an LG 26LX1D

That board has surface mounted electrolytic caps.