Question about Panasonic TH-42PA20U/P 42 in. Plasma EDTV

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Plasms tv hello the problem with my tv is that when you turn the tv on it will stay on for about 10 mins then it will turn its self off on to stand by. then the red standby button flashes constantley.also there is a winng sound coming from the back of the tv when you turn it on. hopefully you can help. thanks ryan

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  • hck9 Sep 17, 2008

    We have the same problem but if you set the Power Save option to On it works fine.

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Hello
Do you have a back-UPS?

Posted on Dec 07, 2007

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Posted on Jan 02, 2017

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Hi Gareth,

This model no. has a built-in "self diagnostic software" that can be access to narrow down where the fault came from.
How to enter to self diagnostic screen display.
1. Turn on the main power switch of the TV and enter into standby mode.
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11_10_2011_11_05_29_pm.jpg
Self diagnostic error menu will be display. It has an error code no. with the corresponding numerical digit "0" means no fault detected or "1" fault has been detected. See sample picture below.




11_10_2011_11_10_48_pm.jpg


Please let me know the result to assist you further.

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