Question about Sony KDL55NX720 3D LCD TV
Main board fault. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
Posted on May 07, 2014
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Posted on Jan 02, 2017
SOURCE: power button
This is a very simply fix. Your problem is you have a bad thermal fuse. This fuse can be found in the Lamp housing. You need to take the back off in order to fix this problem. Replacing the thermal is not hard, but you need to be a little handy. Part number 1-910-023-93 Average cost $9.00
Posted on Dec 07, 2007
Since the TV is still receiving power, the problem is going to be with the TV's mainboard. After you unplugged the TV and plugged it back in, you said the power light went out again, so I assume the standby light wasn't flashing again? The flashing standby light is indicating an error code so my suggestion is to contact Sony for service options regardless if there is a warranty or not because service is the only solution to this situation. Don't forget to provide them the error code or 4 flashes repeating.
Posted on Mar 25, 2009
I will forward a link to a page where you can get more information about this issue.
Posted on Jun 18, 2009
re: sony flat panel lcd tv mod. # klv s 40a10.
No power. When power button is pressed, nothing happens.
The stand-by at the power supply ( cn6201) measures to be 3.47 v. instead of 5 v. However, when I unplug cn6201 (5 pin connector) I can read 5v. at the power supply.
Posted on Aug 29, 2009
SOURCE: I have sony Bravia KLV
AKB circuit (automatic kine bias), the timer/standby indicator blinks
for about 30 seconds then goes to the self-diagnosis function.
Something is wrong with the video. Check video out, Q705, 732, 761
and other components on the C board, also check Q218, 219, 220 on the
A board. In addition, unit could be in IK blanking, try turning up
AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
Posted on Mar 09, 2011
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