Question about Sony BRAVIA KLV-40U100M 40 in. HD-Ready LCD Television

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TV won't turn on a yellow light flashed for about 30 seconds to 1 minute then a red light flashes.

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Check the U24 (CPU reset IC) on the "A" board. It may be burned. If you have a DVM (voltmeter) check for 3.3V across SW1 connections near this device. If you don't have 3.3V, U24 is bad. This part is not available from Sony. The TV may work if you just remove U24 from the board. I posted this fix on Agoraquest also, you can read more there (I'm "Roundabout" on that forum). Hope that helps.

Posted on Apr 11, 2010

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