It blinks PROTECTOR

The number of blinks will tell you what is wrong. This page will help.

Need to know how many times the led is blinking.

Try this link for more information

Re: tv kdl-55ex620 red light blink 8 times Do a Power Reset. 1. While the TV is off, unplug the power cord of the TV from the electrical outlet. 2. Let the TV remain without power for 60 seconds. 3. Plug the power cord back into the electrical outlet. (If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.) 4. Turn on the TV. 5. When the TV powers on and a picture is displayed, reset the TV to factory default settings.

• If the Reset message does not appear and the TV turns off and on, begin again from step 5.

• If the standby light begins blinking eight times, return to step 1.

6. After the Reset message appears, allow the TV to reset. Do not press any buttons on the remote control or on the TV and do not make any other adjustments for 1 minute. 7. Unplug the power cord from the electrical outlet. 8. Allow the TV to remain without power for 10 seconds. 9. Plug the power cord back into the electrical outlet. 10. Turn on the TV.

• The initial setup screen displays if the above procedures were performed correctly.

11. Follow the on-screen instructions to complete the initial set up. 12. Perform a system software (firmware) update.

Your surge protector did not function properly, contact the manufacturer of the power strip.

Tv turn on now,does it have a flashes of picture only a few second than dies and than have only sound left?Yes,than the tv 2 long LCD inverter boards are dead.These 2 long LCD inverter boards are one to the left one to the right both must be replace.The 2 long LCD inverter boards job are to help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 LCD inverter boards for the replacement.

Check your speaker cables, make sure none have shorted out. if they have, then thats why the unit won't power up. The units protector circuit is being activated upon startup.

try re-soldering the vertical output IC. This is a common problem re-soldering may solve the problem

light bulb

If DIGITAL sign blink, this mean DSP board is defective. It will cut the sound on the AMP section. DSp is maybe defective.

The problem that is happening is due to the shutdown circuit activating, which is an indication of excessive current flow. This may indicate a problem in the High Voltage section or in the power supply feed from the HV section. In any case this problem is best dealt with by a trained professional. I would suggest that you take the TV to a qualified TV repair person and have them check it out. 
I hope this helps 
Thank you, 
Shuttle83

I think this sounds like my problem (need to replace the projector lamp). However, when I hit the "on" button, my SXRD 50" blinks green for about a minute then starts blinking red. Can you confirm the bulb solution? I was very pleased with this sight when my fan malfunctioned. I got the fan in a matter of day's from Sony and it fixed that problem.