There are several plasmas repair that let me down.

[Wizard]

Especially on estimate budget in regards of YSUS buffer blown on more than 1 boards (upper and lower) and burned resistors on YSUS driver board.

That let me down because I cannot notice that lower or upper board blown because had easily seen crater or fried RTV around each IC with heatsink.

Story:

I replaced the upper YSUS buffer board and YSUS board because resistors is cooked. Tried and found that lower buffer is failed as well. Tried another from spares pile and they are also bad. SIGH.

How often do you see that happen?

Cheers, Wizard

[el3ctroded]

Re: There are several plasmas repair that let me down.

I've not had that, but have only just begun.

Aside from craigslist and ebay, where do you get non-working panels from for decent price?

[cadiman]

Re: There are several plasmas repair that let me down.

The bad stuff only happens to me when I have the tv sold. Thats why you have to enjoy the ones that you fix with one mosfet then spend the rest of the time watching the front of it instead of looking at the back of it while sampling a good wine!

[PlainBill]

Re: There are several plasmas repair that let me down.

While troubleshooting a Magnavox plasma TV I came across this information. I don't know how valid this is, but it seems to me it would work on any buffer that uses the SN755870 chip. It certainly helped me evaluate the two buffers!!

The same guy has described a quick way to identify the bad IXTA36N30P on the sustain board. The only problem is while both mosfets and buffer chips are available, I doubt I would be able to do the work.

PlainBill