Re: Sony HLR board ??

Thanks to all of your posts, I was able to successfully diagnose and fix my Sony TV. Thank you all!

I wrote a play-by-play writeup covering the whole repair process. In hopes of it being found useful to others with this problem, or to those looking for troubleshooting ideas, here it is:

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Upon receipt of this KDL-55EX711 Sony TV, the symptoms were:
-Refusing to power on
-Standby light blinked 7 times, repeating every few seconds
-Internal relay clicked on, then...

Re: Sony HLR board ??

DenisKor, thanks for bumping it again. I may have found something on the HLR board...

I've got the same 7-blinks-won't-turn-on issue, but I'm working on a KDL-55EX711.

Same symptoms over here, where the TV seems to boot just fine with the HLR board disconnected. With the board plugged in, however, it thermal-faults within a few seconds.

After testing whether any of the +3.3V rails may have been shorted to ground through a faulty SMD component (they weren't), I tried daintily removing pins from the HLR board connector...