Re: Samsung plasma PN64F8500 Y-sustain board



Thanks! I have replaced all 106 (10uf) capacitors on the Y-sus and everything works perfectly fine. Still I cannot figure out what was wrong with the old caps as they all measure within the 20% tolerance band. Probably, I need to test them under different frequencies and different voltages to find out what exactly the problem was....

Guys, I need your advise to troubleshoot the Ysus board on Samsung PN64F8500. The symptoms are as follows:

When switching the TV on via remote, no video, blinking LED for about 1 min. Then sound is on, all remote controls are fully functional, but still no video. If I am lucky, it works from the 2nd switch on [U]depending on the room temperature[/U].

First, I was thinking that it was the power board, bad capacitors. I have checked all electrolytic capacitors, measured ESR (I use Atlas ESR70), but could not find any faulty ones.

One more thing. It looks as...

Sorry for asking a stupid question, but I cannot figure out what these grey thermo bars/pads are - thermal insulation pads or heat dissipation pads.

This is the the Samsung Plasma Y-sustain board. I need to replace a few capacitors and had to remove one of these pads as it covered the mounting holes. My questions:

1. What's the purpose of these pads, insulation or heat dissipation?
2. Where can I find these? I have checked mouser, element14 and rs-online, but could not find anything similar.
3. Do I really need to restore the pad I removed?

T...

Re: New Members - please post your introductions here

Hello everyone. My name is Andrew and I am happy to join the forum. I am in process of fixing my plasma TV... need to refresh my memory as I have not touched a soldering iron for many years.