Samsung ln52a650 power cycle

[graveboy81]

I have a Samsung tv that powers up just fine. It only goes through the power cycle when something is playing like my xbox, the cable, etc. I've been dealing with this issue for awhile and need some help. Also, before it powers off, it has a buzzing noise coming out of the speakers.

[matt@bdtinc.com]

Re: Samsung ln52a650 power cycle

have you checked the PSU output voltages before and after plugging a component in? Does it work fine if nothing is ever hooked to it?

[budm]

Re: Samsung ln52a650 power cycle

https://www.badcaps.net/forum/showth...650#post560429
Pictures of the boards and the whole back side of the TV?

[graveboy81]

Re: Samsung ln52a650 power cycle

Ok.

[graveboy81]

Re: Samsung ln52a650 power cycle

The second picture is the plug running to the left side of the panel. It supposed to have a output of 12v but it read 10v.

The third picture is the upper wire plug that runs to the main board. It supposed to have a output of 5v but read 4v.

The fourth picture with the caps is the lower wire plug that runs to the main board. Its supposed to have a output of 13v. It has 12v.

This is with something running and with the tv just on with nothing running.
If i was to watch a movie or cable, after 15 to 20 minutes the controls will lock up and a buzz will come from the speakers. Then the tv will turn off. It will continue this until i stop playing a movie or take the cable cord out of the TV.

[graveboy81]

Re: Samsung ln52a650 power cycle

Budmn, i've read those threads and a couple may help, but my problem is different from the first thread you posted. His didn't stay on , but mine will until you have something playing or in motion. I have a chromecast that has pictures until you stream something. When it's at the picture screen, it can stay on. It will only shut off when i cast something and it is running for a certain period of time. I think i can eliminate the psu but i'm not sure.

[budm]

Re: Samsung ln52a650 power cycle

"but mine will until you have something playing or in motion" Well, that is a very strange problems indeed.
"If i was to watch a movie or cable, after 15 to 20 minutes the controls will lock up and a buzz will come from the speakers. Then the tv will turn off. It will continue this until i stop playing a movie or take the cable cord out of the TV." To me, this is problem on the main board.

[graveboy81]

Re: Samsung ln52a650 power cycle

Do you have any suggestions to what i should do?

[budm]

Re: Samsung ln52a650 power cycle

Nothing.

[graveboy81]

Re: Samsung ln52a650 power cycle

Ok. Does anyone else have a suggestion?