Our Sony KDL52EX700 bought in 2010, the tv just went blank one night, screen will not turn on, the red light at the front blinks so I know there is power to the tv.

Try this website, they rebuild Printed circuit boards:

http://www.moduslinkptstvboards.com/tv-parts-repair-and-return/

See answer to what 3 blinks means:


http://www.helpowl.com/q/Sony/KDL46EX710/Troubleshooting/red-light-blinks-3-times-tv-doesnt-start-help/197887

Hi,
If its lamp light on tv front that is blinking red then lamp is dead/ broken and need to be replaced. Lamp replacement procedure is easy and written in user mnaual of tv.
If it is standby/ power light that is blinking then please count how many times it is blinking after three seconds pause and let me know to diagnose tv problem because it is an error code that has info in its blinking.
Thanks.

There is no reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.

Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).


Tom Miller
Broadcast Eng

It sounds lamp in tv got broken as you heard pop sound of it, replace lamp in tv to fix the issue.
Blinking light would be Lamp light at tv front that shows lamp is dead.
Lamp replacement procedure is easy and mentioned in tv user manual.
Thanks.

I have a Sony Bravia model KDL-46s5100 that had the same problem. All HDMI ports stopped working. I don't know why this works but unplug the TV for about 30 sec, then plug it back in and hold down the power button on the tv for 10 seconds. Like I said I don't know why this works but it worked for me. Good luck.

If there is a red light blinking that means that the projection light needs to be replaced.

You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance:
1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours
2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris.
3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle

Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!

The red light should be blinking a code. For example it will blink 4 times pause then 4 times pause or 5times pause 5 times pause, whatever the error might be. Let me know what it is and then we can help more.

Tim
[email protected]

usually the lamp light blinking red is an indication that the lamp has malfunctioned. Try removing the lamp housing and reinsertng it. if that doesnt help you will need a new lamp or ballast. most likely the lamp