Sony KP-46WT510 46" Rear Projection HDTV Logo

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

8 Answers

Sony KP-46WT510 wont turn on

Hi my Sony Sony KP-46WT510 tv will not turn on. When you push the button the light blinks 8 times and the resets and blinks 8 times and so on but never turns on. Can anyone give me an idea what may be wrong with it and what to expect from the repair guy. Thanks for any help

Posted by chris theodosis on

  • 6 more comments 
  • Anonymous Nov 14, 2007

    I am pretty sure I have the same problem. Looks like getting the part is easy. How easy is it to install?

    Thanks for any help!



  • Anonymous Nov 22, 2007

    I have the same problem and would like a cheap way to get it fixed

    im in San Antonio Tx and a guy said that its $200 just to look at it if I bring it to him and now I know its an $80 part

    Is there a cheaper way

    Damn $300 for a little part and I ahve to drag the TV to the guy

    Thanks Gene

  • chris theodosis Dec 04, 2007

    Hello I bought the part on ebay for $40 and it blinks for times but seems to work I have not set it up yet as my main tv

  • pbm107 Dec 14, 2007

    I have the same problem with my Sony
    KP-46WT510. When I turn on the TV I get
    audio (without a picture) for a few seconds and then the TV resets and then the
    Standby/Timer light blinks 8 times. I
    went ahead and ordered the High Voltage Block part# 8-598-955-32 per
    TVtechmaniac's post, but wanted to know if anyone could provide some
    installation instructions beyond what is provided in the service manual. This is my first time trying to fix a

    Another thing I purchased the
    service manual and it stated that when the Standby/Timer light blinks 8 times
    it is an indication that the T8005 (Transformer) is faulty. How do I know if I need a Voltage Block or a

  • job300 Dec 16, 2007

    i think i have the same problem. got home from work on thursday, turned on the tv. it was making sound like a bug zapper and every time it made that sound the screen would flicker. turned tv off for about 5 mins and the turned back on. after about 2 mins screen went out but audio stayed on. maybe about 5 seconds then went to standby. standby light blinks 8 times.

  • Anonymous Dec 18, 2007

    i think i have the same problem. got home from work on thursday, turned on the tv. it was making sound like a bug zapper and every time it made that sound the screen would flicker. turned tv off for about 5 mins and the turned back on. after about 2 mins screen went out but audio stayed on. maybe about 5 seconds then went to standby. standby light blinks 8 times.

  • cmandelux Feb 15, 2009

    I bought the HVB on e-bay and fixed my t.v. in 15 minutes. Thank you all for your help. The link
    really helped out.

    Thank you so much.

  • skit71 Feb 27, 2009

    I was watching tv when my tv Sony KP-46WT510 went dead and was blinking 8 times. I found this site and ordered the part #8-598-955-32 the high voltage block it was about $150. Canadian which was more than quoted here but I'm happy to say my TV is working now. thanks too all for the help


8 Answers


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Can you tell from looking at the HVB that its bad?
Burn marks on them ect...
Mine looks like nothing is wrong with it.

Posted on Apr 27, 2008

  • 1 more comment 
  • Anonymous Apr 27, 2008

    Can the HVB be bad and not show any sign of a problem

    Mine looks (No burn or black marks on it) fine but I have all the signs that its bad

  • Anonymous May 10, 2008

    Replaced the Dang HVB and TV still does not work

    It come on for about 3 seconds and then clicks off

    Still blinking 8 times

    whats next?????????????????????

    Thanks Gene

  • Anonymous Nov 01, 2012

    My hvb does'n look burn and also does'n smell like burned.



I have removed the HVB and am about to order another but should it have any burn marks mine looks like nothing is wrong with it

Posted on Apr 24, 2008


Complete step-by-step replacement instructions for the high voltage block:

Posted on Apr 19, 2008


Right on with the high voltage block. Ordered it from Sony, changed it today. Works perfect. Thanks to everyone for the good info!

Posted on Feb 08, 2008


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had the same problem and fixed my tv Sony KP-46WT510 today and it was the hv block!
Thank you very much!! Good job guys!!

Posted on Jan 03, 2008


The High Voltage Block - part# 8-598-955-32 was an easy fix. It will take you about 30 minutes. You'll need a phillips screwdriver and possibly a small pair of pliers to remove a connecter (at least I did). While I did not take pics or write down step by step, here are some general instructions. Make sure that the tv is unplugged. Unscrew the panel. The screws are all the same size so don't worry about matching holes. Disconnect the wires to where they are connect. The thicker red ones that enter the HVB themselves are done in a "twist and pull" method. You will need to use this same method when hooking up the new one. There is also a small black cylinder piece of plastic around one of the wires. Make sure that you remove it from the old HVB and place it on the new one. You should be done with the grunt work. Place the cover back on. Check out this site on how to clear the diagnostic codes or else the light may keep blinking...

Posted on Dec 18, 2007

  • Anonymous Nov 01, 2012

    how did u know that the high voltage block was bad? thaks 4 ur reply.


Vista Electronics

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,694 Answers

Not always the HV block...more often one of the CRT's are
shorted = can be proven be hooking up one at a time, one HV
lead and matching CRT socket module.................T.

Posted on Dec 04, 2007

  • Vista Electronics Dec 04, 2007

    PS Also, HV lead can be un-plugged for test................T.

  • Vista Electronics Dec 05, 2007

    Right on TVtechmaniac ! Just fixed a Sony today = 8 blinks =

    HV block.....................................T.



  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 140 Answers

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

Posted on Sep 10, 2007

Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


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.

CAN ANYONE HELP i'm having a problem keeping the timer from going off and shutting the whole tv off. My kp-46wt510 sony widescreen from 2003 is doing the same thing, picture is bowed in the middle and...


Most likely you have turned on the sleep function. 2nd button from the left on the top of the remote hand unit. Keep pressing until "sleep off" appears on-screen.


Timer in user's menu is activated to turn off TV a specific time. Go to timer menu and adjust timer, then push cancel on the remote, this should reset timer to zero. Same with current time, adjust and select cancel, this should reset current time.

If you do not have the original remote, you are in trouble. Service tech will have remote.


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.



Cant find reset button

Sony KP-65W510 tv does not have any reset button.
What is the issue with TV? I might help you.


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.

7 blinks followed by 8 blinks

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.


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.

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?

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.

Sony kp-46wt510

I can't directly suggest a solution to this problem. but here is a link URL may be useful to you. all the best
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2351 Answers

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

matt martin
matt martin

Level 3 Expert

1259 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides