Question about Philips Magnavox 42MF521D/37 Television
This sounds like a problem with the Small Signal Board (SSB). This is the main circuit board with RCA and HDMI jacks that you connect all your devices to.
There are about 5 surface mount 220uF capacitors on the lower left corner of the circuit board (as viewed from the rear). Replace these with same capacity and voltage rating and you should fine. They can be caps with regular leads. they do not need to be surface mount types.
One way to check if these caps are the problem is to warm the area with a hair dryer and see if this turns on the TV or keeps it on longer.
Posted on Apr 24, 2012
Most likely the Power Supply has bad capacitors. check out badcaps.net for info. Someone else on there has the same LCD.
Posted on Nov 23, 2010
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Posted on Jan 02, 2017
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