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Agoraquest • View topic - KDS-50A2020 with 6 Blinking Lights

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View topic - KDS-50A2020 with 6 Blinking Lights

KDS-50A2020 with 6 Blinking Lights

This Forum is questions on any problems you could have with your Sony Televsion set (i.e. Sony Wega grainess problem, cable problems, so forth)

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by Frank-W » Mon Jul 21, 2014 1:52 pm

My KDS-50A2020 will not power-up, when I try to turn it on the power light just flashes 6 times. I have read that this is a power issue but I can't find any help as to where to begin looking for the problem. I have unplugged and re-plugged every connection that I can find to no avail. The lamp is a brand new Philips bulb. Any help would be greatly appreciated.
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by jehill » Mon Jul 21, 2014 6:29 pm

For the KDS50A2020, 6 blinks, pause, 6 blinks, etc. means "Power Error" and the probable cause location listed is "D5V is not supplied". The D5V regulator is located on the A1 board and gets power from the 11V supply on the G board. If you are looking for a board to replace that MIGHT correct the problem, I would try the G board.

NOTE: If the 6 blinks you see aren't repeating, you aren't seeing an error code.
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by Frank-W » Mon Jul 21, 2014 8:39 pm

Thank You JeHill for that information. Here is a little more history of this TV. I bought it for $30 at a thrift store and then found out that the bulb was shot. I put a brand new Philips bulb in and it turned on - but everything had a green tinge to it. I researched and learned that this was a common problem with the SXRD line. I dismantled the TV and sent the optical block out to be repaired. The repairman said that he had to rebuild the entire optical block. I got it back and reinstalled it, that is when I started getting the 6 blinks of the power light (and yes, it does repeat). Could a problem in the optical block cause this error code? The TV worked completely before I had it rebuilt. I have checked every connection, though I did find one wire that pulled loose from a metal block on top of the lamp fixture - but fixing that didn't help. Thank You for your help, there is nothing more frustrating than staring at a electronic device that simply won't turn on.
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by Frank-W » Tue Jul 22, 2014 12:52 am

I Fixed It! It turned out to be a faulty thermal fuse - So happy now!
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by jehill » Tue Jul 22, 2014 3:01 pm

Glad that you fixed your set. Apparently, the KDS50A2020 is similar to the KDFE55A20, because replacement of the thermal fuse is what is recommended for that set for 6 blinks.
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by JLD » Thu Nov 13, 2014 11:20 am

I have a 6 blinking red lights problem, pause, 6 blinking red lights with my KDL40R450A. The set is less than one year old, but I bought a factory refurb with only a 90 day warranty. Any advice?
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by jehill » Thu Nov 13, 2014 4:18 pm

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