Sound is there, but no picture... it was fine earlier today. Now when I turn it on... black screen, but there is sound. When I turn it on, the picture is there for a split second then it goes black.Sound is there, but no picture... it was fine earlier today. Now when I turn it on... black screen, but there is sound. When I turn it on, the picture is there for a split second then it goes black.
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Like stated before--May be another bad blub, especially if you used a generic or Neolux one. A phillips bulb WILL work right. Mits sets do NOT like generic bulbs !!
The circuit board that controls the picture ( under a metal cover) is defective. They aren't expensive and can easily be replaced even by a novice. All you need is a Phillips screw driver to get the back off the TV and to remove the defective board.
That problem is one of the common problems of plasma TV (have sounds but no picture)..As a expert of flat panel for more than 5 years I already encounter that kind of problem many times..
Actually that problem is caused of either X,Y or Z sustain board or even both 3 boards are faulty..Because some models when the one of those boards have short circuit or bad there are possibility that other sustain board are affected..But most the problem like yours is "Y-SUSTAIN" board..
And for specific and easy way to find replacement please try to look at the part # of that board (it is usually printed on the sticker attach to the board itself..
Hope it helps and please don't forget to rate my answer..
I had a similar problem with my Phillips 42 in. LCD HD TV.
Here's the problem. The Power Supply Board. I opened my TV
up(warranty was up of course) and found several bad capacitors.
Phillips and several other companies were sold capacitors that although
were highly rated failed within 5 years, some sooner, because of a lack of
preservatives. All sorts of electronic equipment is now being effected
due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.
Try with that... http://www.filestube.com/3c4e959f7e53ba6703e9,g/PHILIPS-42PFL7932-LC420WU5-V2-CIRC.html
Symptom: Sound but no picture.
Cure: Master or Slave inverter is defective. It can be that the driver IC is defective or MOSF inverter transformers, or 470uF 35V C Replace driver IC BD9897FS or MOSFET's. 996500046243 IC BD9897FS 996500046242 Mosfet FDD8447L 996500046241 Zener KDZ100V
The lower "Y Buffer" board is defective. Best repaired by a technician, or contact Phillips support for the part if you think you are able to replace a small circuit board on your own.
Sound is there, but no picture... it was fine earlier today. Now when I turn it on... black screen, but there is sound. When I turn it on, the picture is there for a split second then it goes black.
i have the same problem only mine is goes completely white not black
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