Question about Philips 42PF7220A 42 in. Plasma Television
CHCK POWER SUPPLY CORD AND BLINKING IS DUE TO LOSSE CONETION AND LOOSE SOLDIRING ON CIRCET BOARED
Posted on Jan 11, 2008
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Posted on Jan 02, 2017
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Oct 12, 2013 | Scott LCT37SHA TV
Dec 20, 2012 | Toymax Magnavox 37MF231D 37 in. LCD TV
That problem is usually have 2 causes..Its either power supply board or main board..
Please take this steps on how to determine the problem:
Open the back
Check the power
supply output...It should have 5vdc for the main board..12vdc or
16vdc for the audio and 24vdc for the back-light inverter..
If those 3 voltage
supplies have encountered voltage drop...The problem could be on
power supply board..
If the power supply
output is normal..The problem could be on the main board...
If the problem is
power supply you should check if the capacitors are bulged on the
top and try to replaced it..If you can't do that you can purchased
new power supply board..
If the problem is
on main board there is no D.I.Y repair on that so you need to buy a
new main board that fits to your TV..
this solution will be helpful..
Thanks for using fixya...
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