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Loud squeching noise, green screen on Series 5 40" LCD

by hollyrasche / February 7, 2009 1:03 PM PST


I have a Series 5/500 LN40A500T1F 40" Samsung LCD TV. Last night, after being off for an entire day while at work, I came home and turned on the TV. No more than a minute after being on, a loud squelching noise and green screen appeared over the existing picture (as in it was semi transparent) I unplugged everything immediately. Plugged everything back in, turned it on, and same thing. Thinking it was the cable box, which connects to the TV via HDMI, I went and exchanged the cable box. Everything was fine the rest of the evening.

Tonight I was watching a DVD on my Samsung BluRay player, after having the TV for a few hours watching normal cable without problems. About an hour into the DVD, same thing. Again, turned everything off and problem was gone upon reboot. The movie finished, about a half hour later and began to watch regular cable again. No more than a half hour later, same problem - loud squelch, green screen. TV is unresponsive to remote and only "fix" (if you'd even call it that) is to manually shut everything off.

We purchased an extended warranty when we bought the TV 3-4 months ago, so I'm not worried there. I'm wondering though if this is something on my end, such as the power strip everything is plugged into, or a defective set of HDMI cables....

Any help would be appreciated.

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All inputs...
by Samsung_HD_Tech Samsung staff / February 7, 2009 1:14 PM PST


I'm sorry to hear you're having these issues with your television.

That's definitely not normal operation for the television, and I don't have any reason it's something you did to the television. I also would have thought it was the cable box or some sort of handshake issue, but I haven't heard of the transparent green screen issue before.

I would definitely set up a service call at 800-SAMSUNG and have a tech come out and take a look.

Keep me posted. I'd be interested in hearing what they diagnose.


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by hollyrasche / February 8, 2009 1:23 AM PST
In reply to: All inputs...

This morning it was completely dead. Would not turn on or anything. My dad is attempting to return it to it's place of purchase this morning.

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Samsung LN40A500T1F tv will not turn on
by kevinalbrecht / August 14, 2009 10:24 AM PDT
In reply to: All inputs...

I came home from work today & our TV will not turn on. It was working this morning. Is there a breaker that I can flip?

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samsung ln40a500t1f
by kunst77 / August 14, 2009 11:11 AM PDT

i bought the samsung ln40a500t1f for $799 at circuit city in november '08, and i'm running into a lot of the same problems. at first i had just an xbox 360 hooked up through a cheap hdmi cable, so i thought it was the cable creating handshake issues.

i replaced the hdmi cable with a monster 1000 series cable, and i still have to turn on the tv several times before i can get it to stay on and show a picture that isn't all broken up with squelchy sounds. same thing with my at&t u-verse connected through component video, and now a desktop with hdmi.

i called samsung, and they thought it was a bad panel, and scheduled for someone to come out. but when the warranty guy called me, it was working, so he said there was nothing he could do for me, and to call back if it stays unable to turn on. but i don't want to spend 10 minutes turning the stupid thing on and off everytime i want to watch or play something.

if it's happening to multiple tvs with similar issues, wouldn't it be a software problem that samsung could fix with a firmware update?

did anything work for you? help please.

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