Question about Televison & Video
Your TV has a problem in the power supply section. Capacitors (particularly C8059 and C8060) need to be checked and also multiple bad connections in the power supply board need to be resoldered.but in many cases it has been noticed that this capacitors looks finwe but the power supply board goes faulty due to short tracking in the circuit.so whole power supply board has to be replaced.a couple of the four larger caps running from top to bottom on the left side -- specifically the two at the bottom -- look a tiny bit different from the others. They say 47uf 350v, and appear to be 8020 and 8084.can also be faulty.Also make sure you install the negative side of the capacitor to the negative side of the board and positive to positive.
as what you are saying 4 blinks.this power supply board fault is the reason for 4 blinks.
to see how the board looks click the link
to remove the board and replace with new board -----The board has like 8 screws and I think it was 7 connectors plugged into it, just remember to mark the cables before unplugging.
you can get the required parts at
Posted on Jun 02, 2009
u need to locate the part which your Philips 42PF7220A/37 Plasma TV appears to be the problem.its been found that heating and cooling certain parts of the board(s) will allowe u to get beyond the red light flashes error message and power up the TV. Through a process of elimination, I narrowed it down to the SSB Tuner board 3104-313-60376, This board is located behind the board covered with the shield. The specific component in question is the one I have circled in red on the attached photo. It is a crystal Xtal 27 mHZ 18Pf PART# 2422-543-01397. When I spray this component with cold air (freeeze) for a couple of seconds and then plug the power back in the TV will go through it's initialization cycle and turn on. It may turn off automatically, in which case, you just power it back on either manually or with the remote.
it is the crystal tht can be excited (turned on) by either heat or cold. Perhaps it was stuck and spraying it with cold and heat released it.
SSB:- (Main Logic Board+Output/Inpunt Signal Board)
hope u will b helpfull
all the best
do let me kno
Posted on May 31, 2009
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Posted on Jan 02, 2017
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