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Tv repair the power will not stay on.

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  • cob139 Jan 08, 2008

    the power on my tv will not stay on?

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You don't give much in the way of details... How long does it stay on? Long enough to give a picture and audio?? Or maybe 10- 30 minutes?

If it only comes on momentarily, not even long enough to give video, then it could be going into Hi-voltage shutdown, probably indicating an overvoltage condition. This could be caused by a voltage regulator failure. Troubleshooting this is best done by a qualified technician.

If it stays on for several minutes, maybe even 30 minutes or so, then goes off, bad solder connections might be the culprit. A modest whack or bump on the side or back of set might confirm this. Whack it... if set dies, you likely have a bad connection problem. If you have good eyes, a solder iron and solder, and know how to solder, then you might be able to find the bad connection(s) on the chassis. Common locations for this are in the horizontal deflection, power supply or vertical deflection portions of the circuit.

Posted on Jan 08, 2008

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It sounds like you shutdown circuit is being activated. This is due to excess current being drawn. This usually happens in the High Voltage section of the TV or one of the deflection stages. Due to the nature of this problem I would suggest that you take it to a local TV repair shop or have a TV repair person come out and take a look at the issue. The HV section is dangerous and should be dealt with by a qualified TV repair technician.

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Hello nicolastran,

I gave this advice to someone with this same problem so here it is again:

It sounds like your shutdown circuit is being activated. This is due to excess current being drawn. This usually happens in the High Voltage section of the TV or one of the deflection stages. Due to the nature of this problem I would suggest that you take it to a local TV repair shop or have a TV repair person come out and take a look at the issue. The HV section is dangerous and should be dealt with by a qualified TV repair technician.

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