Question about Panasonic PT-51HX40 51" Rear Projection Television

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It shuts off all by its self but not all the time

Hey techy peoples i just bought this panasonic pt-51hx40 for 85$ now i need your help to fix it. it shuts off by itself. yesterday it dident do it at all and we had it on for 6 hours straight. today it has done it 5 or 6 times it stayes on for about 10 minutes and then without warning it shuts off. i have normal picture and normal audio.the guy i bought it from sayed he payed someone $800 to fix it but the problem still persists.

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Re: it shuts off all by its self but not all the time

If I was working on this set I would look for cold solder joints on IC501 Vertical output IC.

Posted on Dec 27, 2007

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Panasonic pt-47wx53g tv power light blinkcs 5 times and goes out.

Convergence problem...causing the TV to shut down. Goto and get one of their fixes.

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Hi started my panasonic PT-47wx53 and it seem it was going to start up(could see picture coming up and heard voices) it then shut it self down and the power light flashed 3 times interval. tried again with...

Replace both of your STK ICs eample STK392-110
number will be printed on them also CK small blue capacitor 2k volt by hori output Transistor sometimes they burn up S Mats Electronics has STKs for $10.95
each Shops retail these for $55.00 each
1-800-628-1118. Good Luck and let me know if you need anything else.

Mar 24, 2010 | Panasonic PT-47WX53 47" Rear Projection...

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Panasonic PT-53TW53; Red shadows appear and then the t.v. shuts down.

The convergence output IC's have failed. Only fix is to replace them. These are large amplifier IC's bolted to heatsinks and have a high failure rate in all projection sets.

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My panasonic TV Model: pt 53tw53g turns off by it self

My Panasonic has exactly the same problem. The repair man just came in and said that the convergence and resistor burned under heat and have to be replaced. Will cost $400.

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1 Answer

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yes it did fix my problem but you need a tech to look at it. if your in canada i can recomend a dealer

Oct 03, 2008 | Panasonic PT-47WX42 47" Rear Projection...

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Not a techy help anyway?

Is the Auto Aspect function on!?....

Jun 29, 2008 | Panasonic PT-47WX49 47" Rear Projection...

2 Answers

Panasonic PT-51HX42F

Sometimes, in the Panasonic projection sets, one of the convergence IC's shorts out and draws so much current that one of the resistors next to it glows red hot. The computer senses the extra current and shuts the set back off. This is quite an easy problem to correct, but the set should be serviced by a qualified tech familiar with panasonic projection sets.

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PT-47WX49E Doesn't work

This is for sure a safety shutdown circuit that is shutting down this TV set. It is a hard call to pinpoint a problem such as this without first doing some troubleshooting on the TV set. You could have a short in the sweep power supply, the horizontal output transistor could be bad, therefore then the flyback is probably bad, or the vertical IC could be bad, there could be a regulator problem in the main power supply that could be bad, and also the convergence IC's can cause this problem. Almost any circuit inside this TV set can be detected and staop the set from starting up. Good Luck

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