Sony KP-46WT510 46 in. Rear Projection HDTV Television Logo

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Problem with Sony KP-46WT510 46 in. Rear Projection HDTV Television

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 avatar on Sep 10, 2007

    • By avatarchris 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

    • By avatarskit71 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

    • By avatarGuest 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.

    • By avatarjob300 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.

    • By avatarpbm107 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
      TV.

      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
      Transformer?

    • By avatargened 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

    • By avatarGuest 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!

      Bryan

      Michigan

Solutions (8)

Best Solution

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

  • By Author imagegened Apr 27, 2008

    • By avatargened 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

    • By avatargened 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

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... http://www.iwaynet.net/~nesda/SonyBlink.html

  • By Author imageGuest Dec 18, 2007

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.

    • By avatarTerry Grant Dec 04, 2007

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

    • By avatarTerry Grant Dec 05, 2007

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

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

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

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

  • By Author imageGuest Apr 24, 2008

Complete step-by-step replacement instructions for the high voltage block: http://flagrantdisregard.com/replacing-sony-hvb/

  • By Author imageGuest 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!

  • By Author imageGuest Feb 08, 2008

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!!

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