LG Plasma Again

[cadiman]

Re: LG Plasma Again

When you get a chance list the board part numbers for y, z, and power supply ( on the white sticker on the board) and I will check them against mine. I did find the pdp42v6 on scribd gave great diag for boards with no picture, but you need a scope for it and stated 200mhz or better ( I was looking for this cause I only have a 100mhz)
Mine does ok most of the time for what I need.

[NxB]

Re: LG Plasma Again

Boards are in. YSYS hums, Zsus hums. Still no picture.

[NxB]

Re: LG Plasma Again

Is it worth checking under the Ysys IC?

[NxB]

Re: LG Plasma Again

yup, i fucking blew that too. now I'm lg expert

[NxB]

Re: LG Plasma Again

So no we're back at no image. Vy, Vsetup and Vscw are at around the right values but they seem to oscillate. Like Vscw is 115, 111, 120, 114v, etc. Any ideas.

[NxB]

Re: LG Plasma Again

I swapped everything over to another y board and it fucking overheats.

but it does show display now.

[DocMichael]

Re: LG Plasma Again

I'm new to the forum but here is a self repair on a zSUS much like the russian one given earlier in this thread.

http://teleservice.xooit.fr/t4072-pa...42V6-SONIC.htm
http://img42.xooimage.com/files/7/9/...89-1bdaa36.jpg

This is a rebadged LG-42 IISONIC.

[cadillacman]

Re: LG Plasma Again

I swapped everything over to another y board and it fucking overheats.

but it does show display now.

os your issue is in the ysustain still.. one board no workee but cool, another board works but runs hot, its in the y i would guess.

man, i thought i was the only unlucky one to have an lg nightmare..

does your set have smd transistors on the buffer boards off of the ysus? if so it might be worth checking those to make sure they arent shorted and causing repeated failure of your ysus..

[cadiman]

Re: LG Plasma Again

When these ipms fail there are almost always other issues and not just ipm failure.

Two things must happen for a catastrophy!

It happens inside the back of an L/G alot.