My tv ssb board went bad and now after replacing it twice because the replacement was bad my tv shows no picture at all. Every time that I turned it off it would switch from AV1 to AV2 or something else. Now the power button flashed 5 time then shut the tv off. I'm at my wits end, what can I do?
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Re: Phillips tv 60p8341
You should probaly get the service manual. you can get one at the following link for 15.99 and they provide free support to help you diagnose the set. they email them out fast after placing a order. Have used them many times. http://servicemanuals.vstore.ca/
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unplug the tv and remove the back cover,locate fuses and see if there bad.if so and you replaced a bad fuse and the unit works consider yourself lucky and invest in a surge protector if you dont already have one.if no fuses are bad you have a bad board most likley the power supply board.theres a risk of live voltage so be careful.
I would certainly challenge the fact that your SSB is bad. This SSB is known as the the small signal board. This board is a little larger than a credit card and is seated on top of the signal module( The board with all the RCA jacks and RF connections). It is located inside the TV on the left side of the rear of the TV. I must caution you, the replacement board will exceed any expectations you may have for repair. The cost of this SSB will be near $300 dollars. Then you will need a TV tech to enter the software to correct geometry. This SSB controls the screen size and colors (gray scale) and sound, etc. Sorry to lay the hard core facts. But it will not be feasible to repair this aging TV. I have seen and repaired many of these when they were under warranty! Thanks for asking and show all hands of support.
Let me get this straight, you don't have a picture as long as the unit is on, but when you go to turn off a picture flashes? Questions, first how is the picture when it flashes briefly? Is it normal or with colors misaligned? How is the sound? Could be a loose connection or bad capacitor in the video circuit.
Thats the DPTV 300 series phillips HDTV its definatly worth fixing. How are your troubleshooting skills. Sounds like either a problem in the LSB or SSB circuits boards. On our website we have replacment circuit boards for that model. Our prices are less than half what others are getting. Let me know if you would like me to post a link, we also have the service manual for your model.
HI NEED REPLACE A SSB SMALL BOARD IN LEF SIDE
IS VERY FAST TO REPLASE IS HAS ONE WHITE CABLE PLANE INSERT TO BOARD THE SMALL BOARD IS INSERT TO BIG BOARD IS COST YOU $ 319,88 LESS $ 100 CORE BACK A OLD BOARD
That unit is a PTV916 chassis.
The oscilating sound you hear is probably a feedback pulse on the secondary transformer. That would first make me suspect that the HOT (Q802 / 2SD1556)(horizontal output transistor) has shorted. You need to check for any short between the base and emitter pins of that component. If that's the problem properly replacing it should restore normal operation.
If that wasn't it, you would next check for failer of the SSB located on the left side of the unit next to the tuner, mounted vertical. That board has been a problem in many of the PTV9xx series chassis. It can be rebuilt, but will take some extensive knowledge and equipment to test.
If any of this sounds too complicated I strongly suggest a qualified shop do the testing and repairs. If you have any difficulty locating a reputable shop try contacting NESDA (National Electronic Service Dealer's Assn.) for a listing of shops in your area. It is worth repairing.
Power supply or sweep suppys have parts that are overheating and breaking down or cold solder connections. Call someone who knows this set like the local authorized magnavox/Phillips dealer/servicer. Good Luck