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Hi my name is Eric,

I hope I can help you with your issue ,

here is what it sounds like it might be:

Either the power supply has an issue , or you have a bad buffer board and Ysus scan board or both. 4 or 7 blinks may mean power supply , 6 blinks the buffers and y board.

A repairman will usually just order the boards and you will spend over $700 probably around $850

It could be just a few bad capacitors on the Power Supply, I have never seen a bad capacitor on the Y board if its bad it needs to be replaced with the buffers together

If you want to attempt the repair yourself you can do a visual of the power board caps will appear swollen on top.

The ones you are looking for are located almost center bottom of the power board, Some models I can see them clearly with the back on simply shining a light into the back through the holes.

look at the photo I am uploading to see what a bulging cap looks like

 

 

 

With the back removed you will see a few circuit boards the upper one (ac cord runs to it through a small board) is the power supply, it has alot of capacitors on it (cylindrical standing straight up soldered in and marked on the sides with the positive/negative sides and uf and Volts values)

Philips uses 2200uf or 3300uf at 10 to 25Volts rating capacitors, they cost about $1-$2 each

here
usually I replace two of them (or all the bulged on top ones) .

The power board and back unscrew with a torx bit and screwdriver size 10 and 15 , if you do not know how to desolder and resolder then do not attempt this as you may damage the TV more than fix it.

We do not recommend do it yourself, but depending on your knowledge and technical ability you may be able to.

You can replace the whole power supply, but Philips has a few versions in their sets and some so called replacements won't fit due to cable location (sockets) being in a different spot.

If there is a blinking red light on the TV count the blinks,if it still blinks after replacing the swollen cap this would indicate a bad buffer board ,

check the capacitors by looking for the swollen tops I hope thats all it is (usually is), if there are no bad caps post again so I can tell you buffer troubleshooting steps and locations.

here is Philips Phone 1-888-744-5477

or search on encompass.com , login as guest search by model # in case you need it for exact part numbers

Here is a photo of a similar power supply

 

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Thanks

Eric

Expert:	Eric
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Answered:	10/29/2009

Technician

TV Repairman for over 30 years, still working in the field