LG plasma logic board blink code

[tw2005]

Re: LG plasma logic board blink code

I have a faulty, but not shorted YSUS. Caps look good... Not bulging... Buzzing however is quite present.

I don't see where it shows what voltages VSETUP and VY, etc should be? I have oscilloscopes, etc.

Label should be on the panel at the top. In my case I had an open cct transformer but that's a 2010 model. I know the same transformer was also on the 60" models too and I've also had a 60pk series also that had me stumped for a bit with that.

[Poor Flick]

Re: LG plasma logic board blink code

OMG, as soon as I read you removed the bottom heatsink I stopped. I feel your pain. Did that some years ago myself on a Samsung destroying a perfectly good panel.

Yep, my ass is still bruised from the ass kicking I gave myself!
The blinking pattern on the fully repaired and normal working set is steady with no irregular pattern.

[chood2]

Re: LG plasma logic board blink code

Label should be on the panel at the top. In my case I had an open cct transformer but that's a 2010 model. I know the same transformer was also on the 60" models too and I've also had a 60pk series also that had me stumped for a bit with that.

Could you elaborate on your open cct transformer??

Thanks for the help.

[chood2]

Re: LG plasma logic board blink code

Chood2, I got your email but I thought I'd post the reply here, maybe it will help others also.
I never found an answer to my flash code. What did happen is that I replaced the power supply board and got my panel to come mostly on with no sound. Replacing the logic board got my sound on. In the process I didn't see a defect in the end of a ribbon connector, causing the blank spot in my panel. I continued troubleshooting by pulling off the skinny long metal cover on top of the ICs along the bottom of the panel thinking I would test for power on the boards. What I didn't know was the metal cover is a heat sink and when I powered it up to do voltage checks, the ICs overheated and my panel was then junk. At the time my TV had a few weeks of warranty left and after a honest talk with a repair shop, I got a new panel installed for almost free.
Closer inspection of things showed a tiny burnt hole in a chip on the logic board, I never could figure out why my power supply was bad.
This was my first try at fixing a TV.

Thanks for the updates. I really appreciate this! Going to trek forward and try to find something wrong with the board I can fix...