Model - Phillips 47PFL432D/37
Someone gave me this TV the right side backlight flickers rapidly, the left side didn't come on at all. I popped it open and there is 2 seperate inverter boards. A slave(left side, when facing screen) and Master(right). Immediately I see 2 35v 680uF caps on either board. All 4 are horrendously blown. I replaced all 4 with new ones and the problem persisted. So I thought surely it was the CCFLs.
I decided just for the fun of it to swap the master and slave boards to the opposite sides. The problem followed the boards. The previously flickering light was dead, and vice versa. I tested the transformers with an ohm meter and everything checked out fine there. I checked the MOSFet to the best of my knowledge as well as a few other semiconductors around the board.
I really don't know where to go from here...Is the slave board bad? Is the master? Could it still be the CCFLs? All caps looked good on Power Supply and tv stays on and works, just backlight flashing nonstop.
Someone gave me this TV the right side backlight flickers rapidly, the left side didn't come on at all. I popped it open and there is 2 seperate inverter boards. A slave(left side, when facing screen) and Master(right). Immediately I see 2 35v 680uF caps on either board. All 4 are horrendously blown. I replaced all 4 with new ones and the problem persisted. So I thought surely it was the CCFLs.
I decided just for the fun of it to swap the master and slave boards to the opposite sides. The problem followed the boards. The previously flickering light was dead, and vice versa. I tested the transformers with an ohm meter and everything checked out fine there. I checked the MOSFet to the best of my knowledge as well as a few other semiconductors around the board.
I really don't know where to go from here...Is the slave board bad? Is the master? Could it still be the CCFLs? All caps looked good on Power Supply and tv stays on and works, just backlight flashing nonstop.
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