Re: LG: DT-42PY10x "issue with colours"

I've now found if I twist the set sparklies/purple may disappear or appear, so thinking a connector or solder joint (god I hope not)

I've got the main board off and I'm down to the individual connectors cleaning and touching up with CRC contact spray. Found another 3 adjustments pots too.

All fuses and voltages are Ok as far as I can tell. (Va, Vs, 5v, 12v)

Any pointers at all? This is the first plasma I've opened up and aside from the guides I've read I'm pretty well flying blind.

Re: Vizio M550SV No Power/Lightning Strike

You say you did a thorough visual exam. Does this include the rear of the boards?

There may be smokey bits / burned tracks on the rear of one of them.


Those caps are 450v rated, feels strange they would be in series and not parallel for filtering the dc...

Also those black discs should be Polythermal cutouts, they're *designed* to reset after a surge, but they can fail. They should read very low resistance like a fuse, otherwise one could be faulty.

Theres a chip directly above...

Hi,

I picked up this plasma off the side of the road (why not)

And it worked OK! Bright colours and no burn in.
It started out with sparklies on certain colours, or strangely only in the background (hooked up a Game console) but they went away after a few mins of warm up, and ran for a few hours for a proper check.

Later when i went to watch a movie i noticed its come back, and worse now with whole colours being strange.

Attached pics of issue

Funny colours
[URL="http://s17.postimg.org/ay6yvfqjz/IMG_20150302_113524_003.jpg"]http://s17.postimg.org/ay6yvfqjz/IMG_20150302_113524_003.jpg[/URL]...

Re: New Members - please post your introductions here

Kishorko,

Best bet is to first search the forum, "LED backlight replacement" for example.

If its not already answered, start a new thread in the right section and someone can help

Re: New Members - please post your introductions here

Elloo,

Im Alex, im in my mid 20s and come from nsw Australia. I enjoy pulling pretty much anything apart to figure out how it works, or if it doesnt work to fix it! (i draw the line at living things, dont worry)
Electronic or mechanical, cars are just messier when you pull them apart...

A good number of things i own actually ive gained either for free, or a very small price. Either because its been thrown out or as an ex warranty product.
Ive figured hey, if it isnt fubar i can probably...