Question about Sony KP-46WT510 46" Rear Projection HDTV

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7 blinks followed by 8 blinks

I have a Sony KP-46WT510 in less than 4 years. Now it got a problem. When the power is turned on, it blinks 7 times, then turns off automatically and followed by 8 blinks, off, 8 blinks... .

I have replaced the FBT and checked Q8043 and Q8035. But the trouble remains. Please let me share your wisdom.

Could you send me the service manual and the trouble shooting guide ? ruixiu.dai@sbcglobal.net

Thanks.

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  • Anonymous Sep 12, 2008

    Hello, my Sony tv does the same thing. Before it turned off by itself, i heard some, in the only i can explain, buzzing sounds. About 3 different once and then it just turned off. Try to turn it back on and heard the buzzing sound again with audio of the tv and then it just turned off again. Now wen i turn it on i dont hear the audio or the buzzing sound just the light blicks 7 or 8 times then a pause and once again blicks 7, 8 times. What can i do to fix this problem? Thanks

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  • 3 Answers

The buzzing sound you hear is typically the FBT shorting out when you turn the TV on. If you open the back panel and watch the FBT as you try to turn on the TV you can see it shorting out. It will be obvious.

Posted on Feb 23, 2009

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What's your problem?Hi, I have a Sony projection TV KP-46WT510 theres no picture or sound, but it still turns on and I can see the the on screen menu. When I turn it on the led blinks four times


You can Google and find the service manual which will explain what the 4 blinks means.

If you have the Sony remote with the set off:

Display, 5, Volume down, Power

If the set has it you will see a box appear on screen with a list of items--all should have a zero to the right of each---one with a number indicates the number of times that error has been detected.

Let me know if you have questions or cannot find what the four means and I will research it.

Mar 28, 2012 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

KP-46WT510 is blinking 8 times repeatedly on standby what is the problem?


Replace the Flyback transformer your correct flyback which is used in the WS510 and WT510 models is available at the following link.
http://servicemanuals.vstore.ca/product_info.php/pName/sony-flyback-145328551/cName/flybacks

Oct 28, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

6 bliks on sony kp-46wt510


KP46WT510 Shutdown 6 Blinks. 6 Blinks = Low B+ OCP/OVP
SOLUTION: Replaced Flyback transformer. It had no rings on the ringer test.
HQ
Comments: Any load on the B+ line can cause 6 Blinks.
Example: If the 200v line is loaded down will cause a drop in B+ due to bright picture current demand.

Click Here! to download the Sony Kp-46wt510 full service manual.

Nov 11, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Wont startup


Youre flyback is defective.Its an easy repair your flyback is 145328551 which is no longer available but the substitute flyback is thats available at the following link and they provide free tech support with instant messageing so you can replace the flyback yourself. You need flyback 145328511 you can get it at this link with free shipping also. I use them all the time they are a good company with qiuality parts and free tech support.
http://servicemanuals.vstore.ca/

Jun 27, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

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SONY KP-46WT510 WITH 6 BLINKS


IF I REMEMBER CORRECTLY THAT IS A LAMP THRMOSTAT

Feb 22, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sont kp-46wt510 blinks 4 times


IC1509 8-759-593-33 IC LA78045 35.98
Q1505 8-729-423-33 TRANSISTOR 2SC3311A-QRSTA
Replacement part
8-729-119-79 TRANSISTOR 2SC2785-FEK-HFE 1.02

these ic locations are different than yours but same part number.
is there a 2sc3311 near by LA78045?

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Sont kp-46wt510 blinks 4 times


Four blinks is a "vertical stop error" I have a pdf file of the service manual and troubleshooting guide. If you want it,let me know where to send it.

Sep 27, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

8 Answers

Sony KP-46WT510 wont turn on


8 blinks means that the High Voltage Block is shorted - part# 8-598-955-32 (about $80)

Sep 10, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

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