Samsung sound but no picture plasma - Samsung PN42A450 Plasma TV

See troubleshooting section of user manual for help
Troubleshooting - Samsung PN51F5500 User Manual [Page 21] ' ManualsLib

If your Samsung TV does has sound but no picture showing up on the TVs screen you will need to reset the TV then. By unplugging your TV and wait a about 60 seconds. While the TV is unplugged press and hold the power button for about 30 seconds. After 60 seconds are plug your Samsung TV back in again after.

Sound no picture on 50 inch samsung plasma ps51d450a2m - HDTV ...

www.tomsguide.com/.../58009-4-sound-picture-inch-samsung-plasma-ps...

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No picture or sound in my Panasonic TH-P42UT30A plasma ...

This problem isn't a capacitor issue .Its a Y-sus issue or a panel issue
you need advanced help to solve this .

Sound but no picture....
Should ask yourself, does it PRIME? Meaning, That's where the Plasma panel lights up a little for about 10 seconds after startup. -- If it doesn't prime, then you need either the SMPS, YZUS, possibly both. OR you might need to check the ZSUZ. Driver boards can be culprits too.
And can you even get to the Menu, Volume, etc. but just picture?
Then you need the signal board.
Unfortunately that's pretty common with Plasmas. Can burn out or burn "in" easily.

Here's a great forum you might like. http://www.austech.info/electronics/20607-lg-plasma-tv-has-no-picture.html

Different Brand but similar problem. This site is excellent for do it yourselfers. As for Samsung Parts, be thankful if you are a DIY-er that the parts are much cheaper if you install yourself. Separate with installation adds up very quickly. Personally, I decided to go with the Rear Projection Samsung several years ago and haven't had any major problems. Heard then that Samsung was having lots of complications of this nature.

Here's the link to Samsung Site:

http://www.samsung.com/us/support/owners/product/SPN4235

You can try the tricks on this site:

http://www.broadbandreports.com/forum/r22996341-samsung-spn4235-sound-but-no-picture

To be honest though sounds like either bad SMPS and/or bad Y-SUS pcb's.

Wish you good luck.

my samsung plasma 50" tv has no picyure just sound, it is only 2 years old

Most likely your Y Sustain panel has gone bad. I would have a qualified service center evaluate it to be sure.

I know you don't wanto hear this but, PRO shop. As who knows what burned. I foyu rnot famailar with this stuff you'll waste time and money, Pro Shop or get another LCD with 120HZ

This can be from the power supply, main processor, screen drive, or the screen itself.

The modules must be tried to determine the defective one.


Jerry G.