lg rt-42px11 plasma, picture starts fine....then goes crazy!
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Re: lg rt-42px11 plasma, picture starts fine....then goes crazy!
Well after a bit more diagnosing I think the IPM on this board had blown. As you pointed out the component level repair is not really worth it when you look at the cost of a replacement board. I was able to obtain a reworked YSUS board and have fitted it - and the problem is gone!!! Display is heaps better and its even watchable now.
The only problem is now I have a case of the green sparkles....Comment
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by KYBOSHPicked up a bahemoth plasma TV not too long ago and just now getting around to looking at it.
No picture but you hear the TV static (white noise) playing loud and clear.
The back was already taken off (and no screws were provided) as the previous owner had already taken a look.
But it seems they didn't get too far and just left it.
When I first took a look I was amazed at how pristine the inside looked.
Its as if the TV had been in a time capsule.
Caps looked like they were just pulled off the self.
Copper coils had no sign of corrosion on... -
by KYBOSHSaved this beast from the landfill this weekend.
Manfactured July 2013 in Mexico.
I love working on plasma TVs.
Its been a while but I was lucky enough to find 2 this week.
The TV powers on and stays on but no picture. Havent checked for sound yet.
No bulging caps although the insides are pretty dusty and the boards are discolored from many years of high heat.
Will start troubleshooting tonight.
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by dhs6512Hello. Lenovo Legion 5 15ACH6H 82JU PF303BT1, board HY660 HY661 HY561 HY572 HY56C HY57K NM-D562 Rev:2.0 2021-01-25.
Starts up, the keyboard backlight lights up, the sound of the Windows 11 password entry window loading is heard, the backlight brightness is adjustable on the keyboard,
when pressing caps or numlock there is an indicator, there is no picture either to its own or to an external one via HDMI. I checked the board under a microscope, ok, clean and untouched.
I threw in a matrix (FHD, 40 pin, 144Hz), flashed the BIOS (official, took the latest gkcn65ww and one earlier... -
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The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
by TR103Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... - Loading...
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