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TV turns off when changing channels

I have a Samsung TXE1970. I don't have a remote. Lately, when I try to change channels by pushing the < > buttons on the front of the set, the TV turns off; sometimes it will change channels in the wrong direction(eg, go from 6 to 7, instead of 6 to 5). The "turn off" usually happens when trying to go to a higher numbered channel(the >

button). I haven't done any DMM tests yet, because the board/wires are a tight fit, and it's going to be a hassle to try to duplicate this problem with the board out of the chassis. I am hoping someone can tell me the most likely thing(s) to check: is this more likely just a loose solder joint, some mechanical button/spring issue, or a component prob? Thanks.

Reply to
railbird
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It sounds to mike like contaminated circuit board and/or switches... maybe cracked board traces or bad solder connections. To verify that the problem is only there and not in the system control chip in the television, I would go to WalMart or Radio Shack and get a $cheapo universal remote and verify that the problem only happens with the front panel switches on the television. Best Regards, Daniel Sofie Electronics Supply & Repair

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Reply to
Sofie

Hi!

It really sounds like the control board is being "pressed" in the wrong places. Is the front panel cracked or damaged?

In some sets, the buttons are connected together by thin molded plastic. Over time and use, this connection between buttons can or will break. This can cause the buttons to become misaligned or to press on the wrong button inside the set.

You could open the set and (carefully!) try operating the buttons directly to see if they work properly. A cheap universal remote (as previously suggested by another poster) would also make a decent test and may be the fastest solution.

William

Reply to
William R. Walsh

railbird wrote in news:1178721596.868023.23930 @n59g2000hsh.googlegroups.com:

It might not be like my Quasar, but my TV uses a set of resistors with the buttons on the front panel, and that gets pretty wonky. Fortunately, I exclusively run it by remote.

Reply to
Gary Tait

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