G'day fellas,
Merry Christmas and Happy New Year to youse all. Found an LG plasma beside the road the other day. Was sitting in a bit of a drizzle, but didn't seem too wet. Managed to get it home and plugged it in, and it worked. The screen turns off after about 5 minutes however, with the sound continuing. Unplug, replug, works the same and then turns off again, each time lasting longer than the last, so I assume a heat issue? One night the thing worked for over 2 hours straight.
There is flickering of the lighter colours on the screen, the whites are really noticeable.
I tried unplugging the Z and Y sus boards individually, that never bought the picture back, and there is no picture with either unplugged. The Va and Vs voltages were pretty well spot on, very slight periodical fluctuation of 2-5 volts some times.
I removed the Y sus board and had a look around, the fuses all seem good, there may be a few shorts to ground on the things (mosfets I believe) that are screwed to the heat sinks, not really sure what I was looking for on them though. I've read a few things that say putting the main board in the over to reflow the solder all at once often fixes similar plasmas to these, however there seems to be a fair bit of plastic on this board.
I've hit a stump, got plenty of time and patience if I've got someone to tell me what to do, and it would be greatly appreciated thanks.
Cheers fellas, Matt.
Merry Christmas and Happy New Year to youse all. Found an LG plasma beside the road the other day. Was sitting in a bit of a drizzle, but didn't seem too wet. Managed to get it home and plugged it in, and it worked. The screen turns off after about 5 minutes however, with the sound continuing. Unplug, replug, works the same and then turns off again, each time lasting longer than the last, so I assume a heat issue? One night the thing worked for over 2 hours straight.
There is flickering of the lighter colours on the screen, the whites are really noticeable.
I tried unplugging the Z and Y sus boards individually, that never bought the picture back, and there is no picture with either unplugged. The Va and Vs voltages were pretty well spot on, very slight periodical fluctuation of 2-5 volts some times.
I removed the Y sus board and had a look around, the fuses all seem good, there may be a few shorts to ground on the things (mosfets I believe) that are screwed to the heat sinks, not really sure what I was looking for on them though. I've read a few things that say putting the main board in the over to reflow the solder all at once often fixes similar plasmas to these, however there seems to be a fair bit of plastic on this board.
I've hit a stump, got plenty of time and patience if I've got someone to tell me what to do, and it would be greatly appreciated thanks.
Cheers fellas, Matt.
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