TV Repair Question

[JLB Please excuse me, I'm a Dick. Not a moron just a Dick Find all posts View Profile Close JLB]

I'm hoping there might be some electronics whizzes among us.

We have a later model, last generation TV that has been our main TV. Recently it started just shutting off for no reason, than coming back on when it decided to. I told it to go stand in the corner and think about what it had done, but it would not come back on.

Then it did, in the middle of the night.

I took the back cover off and didn't find any loose wires or vampires.

Any ideas?

TIA

[wackymother Senior Member Find all posts View Profile Close wackymother]

We had this with an older TV--not that old, maybe 8-10 years. I think it was the connection behind the power switch. We wrestled with it for a while, and then it actually got better on its own!

It might have had something to do with the humidity in the room; the TV had problems during the summer, but then it improved when it got really hot and we ran the air conditioner.

[vintner Super Moderator Find all posts View Profile Close vintner]

If it would be on for a while, hour or so, then go off I would say it was a bad solder connection on a circuit board, or may be a bad chip. It would then cool off, connection be resorted and would start. But if it is off that long, that doesn't sound like a solder joint or chip.

If it was a heating/circuit board problem, and if you had a can of circuit cooler spray, you could try that once the set turned off. That should tell you if it is a circuit board issue, and would tell you where the repair is needed.

[bigfrank Administrator Find all posts View Profile Close bigfrank]

Sounds like it can be one of 3 things,
Power supply, A capacitor on one of the boards went which is what I think it is. A capacitor stores the charge and then releases it. chances are that It might have dried up.
Question if you open up the back do you smell burnt.
The other problem it could is that the tv just does not like you.

[JLB Please excuse me, I'm a Dick. Not a moron just a Dick Find all posts View Profile Close JLB]

Sounds like it can be one of 3 things,
Power supply, A capacitor on one of the boards went which is what I think it is. A capacitor stores the charge and then releases it. chances are that It might have dried up.
Question if you open up the back do you smell burnt.
The other problem it could is that the tv just does not like you.

It does not smell burnt, and it likes DW better, since she has been whining for one of them new-fangled TVs. You have to be careful what you wish for, cuz now she has a new TV, but it's not fangled and it's smaller.

The one that's bad is a '97, which is when we bought our lake place, so we bought it new for here, then.

Old? We have two lawnmowers that were already very old in '97, still working fine, our boat is a '98, doing fine, everyone knows my POC is on WIN 95 . . .