[jmmorgan82]

I was given this TV from a buddy because it would not power on. I replaced the 7 caps on the DM board and it powered right up. However, after about 5-10 minutes the unit shuts down and resets itself, after which I can power it right back up, but the cycle repeats. I've also noticed the TV also goes through this cycle even if I don't actually have the set powered on. Any ideas to what this could be? I do know that the caps I got from Radio Shack were 1000uF, 35v, but only rated to 85 degrees. Could this be the source of the issue? Any ideas would be greatly appreciated as I don't want to spend alot of money on a 6 year old TV I got for free. Thanks!

Jimmy Morgan

 

[lcaillo]

Try unplugging the control panel and see if it continues to go through reset cycles. May be a bad switch.

 

[jmmorgan82]

There are 2 plugs there, which one would you disco, the black or white? disregard

Sorry there are 2 plugs, one labeled CC and the other ZF.

 

[lcaillo]

The one that goes to the control panel, or both. The other just goes to the inputs.

 

[jmmorgan82]

TV was on for about 30 min, then went out. When I turn it back on it gives the power loss message on the screen.

 

[ljryjj]

Did you play anything on this TV? TV will shut itself down if it detects no signal for some time.

 

[lcaillo]

I'd be looking for a problem in the reset circuit. Seems like I recall one of these with a bad reset IC a few years ago.

 

[jmmorgan82]

A cable box hooked up through composite cables. I could understand the tv powering off but not the power resetting
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[jmmorgan82]

Any chance you could point me in the right direction on where to locate the reset circuit/reset IC on this tv? I could post the service manual if needed.

 

[lcaillo]

Reset circuits are generally in the vicinity of the microprocessor.