Question about Sony KP-51WS520 51" Rear Projection HDTV-Ready Television

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My sony KP-51WS520 will not turn, the stand by light blinks 9 times when the power button is pressed, unplug for a short while the same, unplug overnight same problem, I had the TV since 2005

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Acorinding to my case histories at the shop this is caused by a faulty G cuircit board. we repaced and this fix it. i dont know if you can get this board.

Posted on Nov 04, 2010

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Posted on Jan 02, 2017

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I have sony wega sony wega tv kp 51ws520 no turn on just standby light blinking and i lost remot plz help me


Is the light blinking 9 times? If so thats a very common problem caused by failed diodes on the G board which will need to be replaced.

Jul 19, 2011 | Sony KP-51WS520 51" Rear Projection...

2 Answers

The standby light just blinks when i try to turn it on and it wont turn on


Count the number of blinks of the standby light. It will bink a count, pause and do it again (Common counts are 2 -9) Give this count to a Sony service center and they can help you know what the issue is. (Probably the lamp)

Apr 17, 2010 | Sony KP-51WS520 51" Rear Projection...

1 Answer

I have a Sony KP-51ws520. I cannot power on. says stand bye and blinks 9 times.PLEASE HELP it is only 5 years old and they says some of the parts are no longer available.


Those LED flashs are a fault indicator...First thing to do is to try a reset:

With the TV plugged in push and hold down the reset button on your remote then press the power button on the the TV and then release the reset button once the screen has come up.

9 blinks means, "Zero Crossing Detector" and the probable cause locations listed are "D6166 or D6114 is open

If you are handy you can replace D6301 diode and it fixed the problem. You can buy that diode at partstore.com for $3. good luck





If still no luck then this is going to require a serviceman.

Jan 28, 2010 | Sony KP-51WS520 51" Rear Projection...

2 Answers

Sony Wega Model #KP51WS520


Press in order on the SONY remote "display - 5 - vol. down - power" .that will show diagnostics indicating 9 Zero Cross Detect . You shoud take it to a servicer.

Oct 18, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Wont turn on,9 blinks on stand by


9 is Zero Cross detect. It would require a couple parts replaced on the G board or replace the G board or watch it right now till you get it fixed....kinda..Just press in this order on the sony remote "display - 5 - vol.down - power"

Oct 11, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

My KP-51WS520 blinks 10 times


Type in Sony Blinking codes on Google you will find all blinking codes and what they mean.

Aug 06, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

I have a sony projection tv model #KP-51WS520. The tv won't turn


On the remote, hold down the reset button, press power button on the tv set, release the reset button on remote control. This is a factory reset> If TV does not recover from this call 1-800 222-sony for repair options. Good luck

Jul 07, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

10 BlINKING LIGHTS ON SONY TELEVISION


in these sets you have to check the power supply board. check all capacitors maybe blown on top.

Jun 07, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Sony Wega stanby light blinks 5 or 6 times


When a Sony TV flashes five times, that means that there is an AKB circuit fault.
Six blinks is also a fault related to video problems, and regards a fault concerning the digital board and the Jungle IC (the main CPU).

This means that there is something wrong with the video.
Try first unplugging power for few hours, if that does not work, call a technician, as several IC and components must be tested and eventually replaced.

Nov 22, 2008 | Sony KP-51WS520 51" Rear Projection...

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