PN50A550S1FXZA My Samsung plasma TV cycles on and off several times starting with a black screen and then cycling through various color and static and or lined screens. All accompanied by loud crazy noises. It takes about 20 minutes for it to warm up enough, it would seem, in order to have a clear picture.

Jay Henderson

• 261 Answers
• Posted on Feb 06, 2008

SOURCE: Horizontal lines on Samsung Plasma

Sounds a lot like the Power supply board. But you have to check it out further to be sure. Email me back and we'll chat. GURU JAY

SOURCE: thin black line

Try to replace the YSCAN board. If not fix it, then it's the PDP Panel failure.

SOURCE: samsung plasma HPR4272 that had a 4" black vertical line on

There are at least two issues here. First you have bad buffer boards. Second Very possibly a bad X-Main bd and P-Logic bds. Have a trained Samsung tech troubleshoot the set.

SOURCE: horizontal lines and colored snow

HI,
There are three likely causes for horizontal lines on your plasma TV.

1) A bad incoming signal. Do you see the lines on every channel, and from every source? If you play a DVD or videotape and the lines are still there, then that rules out your cable television or satellite box if you have one. However, if you find that the lines disappear when you play a DVD, I would contact the support desk for your cable or satellite provider.

2) A burn-in. This is caused by things like excessive use of video games or watching TV programs that have static (unchanging elements) like icons or scores or even lines. Have you tried using the built-in burn-in cleanup utility that is part of most Samsung plasma sets? Even if you suspect that the problem is not caused by burn-in i would recommend you try this just to see if it has an effect.

3) A problem with the electronics. Here you have to asnwer the following: is your set still under warranty? Most plasmas come with a one- or two-year warranty. If you paid for the set with certain types of credit cards, your warranty may be extended by a year or so: call your credit card.

If the set is still under warranty, immediately arrange for a repair and keep a record of all dates, names, phone numbers, and promises made. Don't accept any statement that five horizontal lines is "acceptable" to the maker; a pixel here or there may be excused but not a serious problem like yours.

Finally, if your set is NOT under warranty, consider carefully whether to make a repair or buy a new set. New set prices have dropped sharply, and the difference between a repair and a new set may not be significant. Of course, you can wait until the set fails.

thank you,
vijay

Bud Martin

• 11361 Answers
• Posted on Dec 01, 2009

SOURCE: colorful vertical lines on screen

more likely to be bad LCD panel (very expensive), but you can try replacing the LCD controller first (around $80~100).