Sony kdl-40xbr2 no pic. or sound green on light comes when power up on aprox. 15 sec. then goes off and comes back on?

SOURCE: sony wega kdl-l32mrx1 3 yrs

The solution to this problem was the Relay RY6001 replacement. I was able to find a suitable part from CPC check out:-
http://cpc.farnell.com/schrack-components/rtb74005/relay-pcb-spco-5vdc/dp/SW02588
for the details. The part fitted Ok when one of the pins is cut off. You do not need this pin so it is OK.

I have a full set of fix it photos if anyone needs them. It took about 40 mins to strip, replace and re-biuld the TV - there are loads of screws to get at the PCB and then you have to put them all back!!

Thanks again to mgnut for all the info.

SOURCE: press power button green light comes on.But no picture no sound,

I have had my WS-65511 fail like this, first at 4 years, second 2 weeks later, then 3rd time yesterday (4/14/2009). In past, the tech replaced a thermal sensor p/n 299P313010A (but Mitsubishi says that part is not for WS-65511 and that it does not have a thermal sensor - go figure). It is a white rectangle with about 30 pins in 2 rows and is soldered onto a board in the TV. List price is about $25. Might be your problem.

SOURCE: sony bravia kdl-52w3000, turn tv on, no picture or

Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.

To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).

SOURCE: I have a sony wega kdf 60x5955 about 5 years old.

There is about 2 or 3 things Lamp, Lamp Fan if Fan stops runinng then TV will shut off to protect Lamp and the Ballast Board is what turns Lamp on.Go to this website online Encompass Parts type in your Model number which is KDF60XS955 They list everything you need Service manual you can download for FREE These are the part number for (Lamp- A-1085-447-A) & (Ballast Board 1-468-875-11) Call them at 1-800-638-3328

SOURCE: 40xbr2 bravia kdl sony LCD tv. The screen shuts

Problems relating to the automatic turn on and turn off of a set like this usually point to the main board being an issue. For this set, I believe Sony refers to that board as the "AU" board.

It's probably not the G/Power Supply board, especially if it turns itself on. Power supplies will turn a set off, but rarely--rarely--turn itself on.

If there's no kind of extended warranty involved here,
you could be looking at $500.00 for parts and labor to repair this kind of problem.

As always, try any software/firmware updates Sony might have available on their website prior to pursuing a repair visit.