Led is gloowing

SOURCE: 52 inch bravia will not

Firstly, Unplug tv for at least 4 hours. Better yet overnight. This is what we call a Hard or Master Reset.
This should solve your problem. If it doesn't it may be that the set has a bad transformer (high voltage)

SOURCE: Standby LED blinks 4 times

Hi there,

4 blinks on a Sony Bravia indicates a backlight/inverter (aka ballast) problem. These ballasts are regrettably only available with an entire LCD panel. :( You may perchance be able to find a parts outfitter online that scraps out TVs and have a used ballast.

Typical backlight problem on an LCD shows up as the screen lighting up for a second or two and going back off. The 4 blinks just confirms your problem.

SOURCE: My flat screen tv shuts off and standby led blinks 13 times.

Our $2700 less than 3 year old Sony LCD KDL-40XBR5 did the same thing 2 weeks ago. Sony was anything but helpful. They said to take it to a repair shop or we could send them $550 and they would replace it with a $800 set. Repairman says that it is a panel and the part has been discontinued by Sony. The 46" sets had the same problem and were recalled but not the 40" screen. We stopped on the way home and purchased a 40"

electronic & computer repair& servicre

• 12061 Answers
• Posted on Dec 18, 2010

SOURCE: My Sony Bravia KDL-46XBR4 screen

http://esupport.sony.com/US/perl/model-documents.pl?mdl=KDL46XBR4

Above is your user manual and support site, to download.


http://72.9.159.100/avs-vb/showthread.php?t=1261602

Worth a look at above, Hmmm??

http://www.eserviceinfo.com/index.php?what=search2&searchstring=sony+kdl-46xbr4

Above is your service and repair manual for download.

What is happening is there is an internal "Fault" that is causing the Protection Circuitry , to detect the problem, and attempt to shut down the set. When we keep restarting the set, it may work briefly again, because as soon as it shuts down, the "Faulty" component(s) cool down?, and the "Fault" ostensibly "Clears" so the PSU starts up again, only for the component(s) to heat up, whatever, again and fail, so it shuts down, and if left unattended, this would continue on until the part eventually failed. Any fault that involves the power supply is usually quite serious, and needs a professional, usually, unless one is familiar with servicing current day, televisions.

my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center. Now, this point is very important for a good result, Always contact, their "Local" or a, "Head Office" Sony, in your case. Ask them, for a referral to an authorised servicing center, where you ask for a "Quote". Now, when you get the information you want, then you can decide as to repair of replacement.

The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done.

SOURCE: I have a sony FD

This is power supply problem and couple of parts need to be replaced.
Can you replace parts in circuit board? it needs good soldering skills with proper tools.
Let me know to proceed.
Thanks