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Panasonic 42" plasma hdtv - White screen with sound

by Tismyname / August 2, 2010 3:02 AM PDT

I have a 42" Panasonic plasma hdtv model # TH-42PX75U

I turned the t.v. on and the picture was fine, after a few minutes it went completely white, still had sound. Next I unplugged the tv for a few minutes and tried again, same thing.

Any ideas what this is? Maybe I'm better off donating it to the curb.

Any help would be great.

Thanks, T

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by givemeaname / August 2, 2010 4:37 AM PDT

Do a real reset...

Page 89

Also change out the video cable (hdmi?) & try different ports, make sure it is not the cable & make sure it is not just the one port... The other ports could be fine. Also try a different input device like a DVD/bluray player, a PC whatever.

Is the tv hookup to a surge protector?

If you have a can of compressed air, clean the ports 1st, then test the 1 inquestion port & the others... It could be just dust getting into the hdmi(?) port or into the hdmi cable end, maybe.

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16 Months later... I have the fix.
by twistedview / January 11, 2012 8:11 AM PST

I know the original poster has probably moved on at this point, but if anyone else encounters this problem, I cracked the case.

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Identical Problem--different TV
by JerseyJD / December 26, 2012 6:11 AM PST

Twist--your description of the problem is exactly what has occurred with our tv--but we have a different model/size. I looked for some service manuals online, but there was a charge at all the sites I found. Did you pay for your manual? Those parts sites show a variety of possible boards (both "d" and "main logic controller). How difficult was it to actually get to the board and replace it?

I'm also going to try the reset suggested by gman, above--but I have my doubts that will do anything.

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Whats the fix?
by Jruth22 / January 7, 2016 5:23 PM PST

Please help. You said you cracked the case but I'm not seeing how. Please help?

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