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

1 Answer

KP-43HT20 Eight blinks. Replaced high voltage block. Still same problem. Power supply at 135v until divider connected. Pulls 135v down. Flyback?

Posted by on

  • kbjordan Apr 13, 2008

    had a problem w/comcast. told to unplug converter and reset. i shut off the surge protector so i didn't have to figure out which plug was hd converter box. tv went off along with everything else. converter reboots, tv comes on blinks light blue screen with wavy lines and faint comcast logo and turns off. stand by light blinks, yes 8 times, rests and 8 more. can't get tv to stay on. converter seems to be working. didn't touch another button, just shut off power on power strip. tv worked well until i did this. help?



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 398 Answers

If the flyback is bad, the 135 volts will reach about 70 or 80 volts and the set will shut down, and the LED will blink twice. Usually, for 8 blinks, the high voltage capacitor inisde the splitter is shorted, and an easy test for this is to disconnect the thin gray ground wire, move it away from everything else and turn the set on. The set will now run but the ground wire will hiss like crazy. If you replaced the splitter but the set will not run, try disconnecting the 3 high voltage wires to the CRT's and see if the set runs. If it does, reconnect the high voltage wires one by one until you find which CRT is loading down the high voltage. Let me know how you make out.

Posted on Apr 12, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My sony kp- fx532m91 has trouble in turning on it takes 30 to 60 minutes before it will open/on. and it blinks six time every 3seconds. what could be a possible remedy anyone can help me.

Iam thinking that 6 blinks means power suply make sure all voltages are right according to the board.Could be somthing is pulling down on 5 volt line or12 volt line. If it is a CRT which Iam sure it is then there is 150 volts DC or so for the flyback there is a high voltage block for the high voltage for each gun red blue and green.Check power suply horizontal output high voltage block focus and screen block.

Nov 21, 2013 | Televison & Video

1 Answer

Sony KP-57WV700

Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads.
Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself
The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition.
Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!

Jul 02, 2012 | Sony KP-57WV600 57" Rear Projection...

1 Answer

51ws500 sony shuts down and standby light flashes 8 times

Eight blinks points to an audio output problem. The unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

Hope that helps.

Feb 20, 2011 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Replaced a convergance chip..(ps8003) now tv

hello Eight GA_googleFillSlot("TL-IMU-Article"); blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board


Feb 24, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

9 blink problem with Sony KP-57ws520. Cost to get fixed anyone?

Nine blinks means that there is a problem in the HV circuit. It could be the flyback, the divider block or a shorted CRT. How old is your unit? How many hours per day do you watch it? If the flyback and divider block are bad it would be about $250 to fix at a reputable shop. Bad CRT and you are looking at $400. Give me more information and I may be able to pinpoint the problem for you.


Jan 26, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

When power-up tv blinks 2,4 on the power indicator. no picture. what could be the problem?

I assume you mean 2 blinks then a pause and then 4 blinks.
The 2 blinks indicates a problem with excessive current on the 135V line and the 4 blinks is a problem with the vertical deflection circuit not getting correct voltage.
Taken together I would look at repairing/replacing the power supply board.

Dec 06, 2009 | Sony KP-53S75 53" Rear Projection...

1 Answer

My proyection KP43HT20 it is not come on just blink 8 time

The 8 blinks means a power supply problem supply problem!
a very common problem with this model .the flyback unit on the D Circut board needs replaced!
Please rate answers and help keep this site FREE!

Dec 19, 2008 | Sony Televison & Video

1 Answer

Sony KP-51WS510

8 blinks in that model means High Voltage Error which means the flyback is defective and will need to be replaced. Sony parts list it as no longer available. But you can get it at the following link for 129.95 and it comes with free instalation instructions. the job takes about 45 minutes from start to finish. Heres the link.

Apr 29, 2008 | Sony KP-51WS510 51" Rear Projection...

4 Answers

KV27S42 dead - 4 blinks

the +13 and -13 are generated by the flyback transformer as well as the 200 volts. the 135 is your B+ voltage and sould be there at start up. check the HOT and the Flyback. if there is no 135v check IC1751 on the C board sometimes if bad it loads down the 135v line. and can give a faulse vertical error.

Apr 02, 2008 | Sony KV-27V42 27" TV

1 Answer

Momentary high voltage

Is the voltage staying at 135 volts or is it rising?? There are several power supply fix it kits available as well as a way to test the power supplys. please let me know as I have a nice library of sony kits to use as well as a way to test the power supplys. Also a bad Crt can cause a shutting on and off of a projection set as well. If this is the case, try having the CRT rejuvenated and see what happens. please do not forget tp rate this htread.

Oct 16, 2006 | Sony KP-46WT510 46" Rear Projection HDTV

Not finding what you are looking for?
Sony KP-46WT510 46" Rear Projection HDTV Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75462 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

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

Answer questions

Manuals & User Guides