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Sony kp-46wt510 I have a Sony projection TV KP-46WT510, when the set is turned on the standby light blinks four times. I have replaced IC8003(LA78045). (the board number is A1302708A) After replacing the IC I am still experiencing the same problem as the standby light is still blinking four times. I am asking if you can assist me with the problem and a service manual will be greatly appreciated. thanks in advance."

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I can't directly suggest a solution to this problem. but here is a link URL may be useful to you. all the best

Posted on Sep 27, 2007


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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

Hello, I have a Sony Projection Television Model number KP-46WT510. The problem I am having is when I turn it on it turns back off. The standby /timer light blinks six times. What could be possible...

Low B over voltage or over current shutdown its usually related to either the A board or the B board. You can get the replacement A board which includes the B board from

Apr 26, 2011 | Sony KP-46WT510 46" Rear Projection HDTV

2 Answers

Try to turn on, it turns off right away and the stand by light flashes 6 times


Thanks for using FixYa. Standby/Timer light blinking 6 Times means no Horizontal (H STOP), no raster, and so the set goes to the blinking self-diagnosis function immediately. You’ll need to open the back off the TV and check C515 & 516 and the jungle IC, IC206. Also check +5 line is overloaded (A, B boards), +5 line is shorted (A, B boards). Please do rate the solution if the issue is resolved or post a comment for further assistance.


Jun 03, 2010 | 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.

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

1 Answer

When i turn the TV on, a red light on the front of the set just flashes (standby light)

Let me know model and brand of TV if its other then Sony KP-46WT510 and also count red standby light flashes as there would be long pause between blinks.
These info will help me to find out possible solution.

Jul 27, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony KP-51WS520 won't turn on

Something bad in power supply or horiz output.Possible bad gun.Needs a repair shop unless you know electronics.

Jul 07, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Set wont turn on, stand by lights blinks 9 times

Have the same thing happening with ours... we were told by a repairman that it needs a new D Board. He told us that if we could fix the TV for under $500 that it was worth it, if not (which of course, we can't when you add in labor cost) don't fix it. I like the TV but I can buy a brand new flat screen for that!
Good Luck

Mar 29, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

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4 LED flashes indicated a faulty IC board

Jan 18, 2009 | Sony KP-53V80 53" Rear Projection...

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Sony KP-65WV700 DVI-HDTV Issue

Diagnosis: Vertical deflection stopped. Possible causes: +- 15V is not supplied. (D board), IC8003 is faulty. (A board) Symptoms of the problem: TV has entered standby state after horizontal raster, Vertical deflection pulse is stopped, Power line is shorted or power supply is stopped.

From here:

Nov 12, 2008 | Sony KP-57WV600 57" Rear Projection...

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.
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

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