Question about Philips 42PFL3704D LCD TV

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We recently got a Philips 42PFL3704D/F7 lcd tv. We have our computer hooked up to one of the HDMI channels, and we have a switchbox hooked up to the 'Component' channel. The switch box does TV and our game systems. Whatever we are using Component for, the TV flashes off for a few seconds (flashes black), and sometimes the 'Component' indicator comes on (like it had just been switch or just gotten a signal). This happens even if we just plug something directly into the tv (not using the switchbox), so we know it's not that. There's no firmware upgrade for this TV yet, so any ideas would be appreciated...

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Have the exact same issue on our same model purchased in 5/2010 and have complained about it many times with no responce from them other than it isn't a problem. To me it is a huge irritation. Makes channel surfing all but impossible.

Posted on Jan 20, 2013

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I had this a issue with the Component input not working right as well. I had a repair tech come to my house to take a look on Philip's dime. Turns out it's the main circuit board. You cannot obtain this part from Philips. I've been in a fight with Philips to replace the TV. All this started in Aug 09.

Posted on Nov 10, 2009

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Check the link below to find the part to fix your LCD:
http://www.shopjimmy.com/philips-a91h5mma-002-digital-main-cba-for-42pfl3704d-f7.htm

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