Question about Sony KP-57WS500 57" Rear Projection Television

1 Answer

Major problem with sony kp-57ws500

Convergance went out and replaced the stk's in it. Turned on tv after that and heard a pop. Convergance got worse and had no sound just static. Found a convergance and audio board. Used but they did work in other tv. Put the two boards in. Now I have no sound at all and light guns do not come on. Getting 5 red blinks on standby light. What happened?????

Posted by on

  • 4 more comments 
  • hcfd Oct 25, 2008

    So do you think that for some reason the boards that I have are bad for some reason. Because before I took out the old boards I still had a picture but static for sound after the mess up. Now I have nothing. Any Idea on that.

  • hcfd Oct 25, 2008

    Now I have a off the wall question here. Looking at everything. I do see were I had a small piece of soldering that touched on the old convergance board. Now could there be a problem with the line that comes off the power supply to the audio board. I think that it could be hooked up backwards on the audio board. Would that cause a problem with anything?

  • hcfd Oct 25, 2008

    I do appreciate your help. Last question before i trash the tv. Is there any part on the A board that could have gone out that would not allow the sound or light guns to start. I can hear the normal click sound when you push the power button. Also I have read about something called IK Blanking. What is that? I am almost sure that I can get an A board. Do you think that would be worth trying at this point? Only last board to change out.

    Thanks for the help.

  • Any Guy
    Any Guy May 11, 2010

    Sounds like you;re making progress. The switched wires on the audio board definitely could cause no audio and the solder short could have caused your convergence problem. Now I'd be looking at the G board abd the audo board (since you may have hooked it up backwards) to see if you can find out what popped.

  • Any Guy
    Any Guy May 11, 2010

    The only reason I suspect the boards you swapped is that you got an entierly new symptom when you put them in. Rather than try to figure out why they caused a new problem, it would be easier (in my opinion) to go back to what you have before. The loss of sound and convergence getting worse kinda points me in the direction of something in the power supply failing (the only thing common to both the audio circuits and the convergence circuits is the power supply)

  • Any Guy
    Any Guy May 11, 2010

    A 5 flash shutdown is categorized as a white balance failure and can be caused by video drive IC failures, CRT drive IC failures or the screen voltage being improperly adjusted. I'd go back to your old boards and try and locate the source of the pop. Start by examining the soldering on the convergence IC's you just replaced and making sure you didn't accedentally bridge or short out some of the pins, The pop you heard was likely a component in the power supply failing. Possibly you had nothing to do with the part failing in the power supply; sometimes when the convergence chips fail, they take other components with them. Hope this helps..


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
  • 320 Answers

BTW if you appreciate the help I have given you, please rate me! Thanks!

Posted on Oct 25, 2008

  • Any Guy
    Any Guy Oct 25, 2008

    Yes, if you have a dead short on the A board (could be caused by several components) it will not allow the secondary power supply to start, thereby killing off your pics and sound. IK blanking is , simply described, the monitor of feedback from the CRT's to determine if they are functioning correctly. I think you are thinking of the IK stop line, which puts the set into protection if low or no feedback from the CRT's is detected. You can try t he A board to see if it helps, I'm betting you have deeper problems on the G board though. Sorry!


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

a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Replaced convergance chips adjusted red but blue will not adjust in any direction pico fuse is good Sony KP-57WS500

You can try to adjust in service mode but it sounds like you did not do this repair correctly. I would suggest getting instructions from sites such as

Feb 12, 2012 | Sony KP-57WS500 57" Rear Projection...

1 Answer

My sony tv kp-57ws500 the words and items are sligtly curved down at the bottom (at the left and right side and OK in the middle) and curved up at the top (same where up at left and right and ok in the...

You need to replace the convergence IC's in the set. Part number STK 392-560. Two of them. They have to be unsoldered and solder in new ones. You must have advanced experience to get the job done. I suggest you get a TV technician.

May 30, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony KP-57WS500 57 in. Rear Projection tv When I press the power button there is no picture but the "timer / Standby" light flashes. Sometimes when pressing the power buttonthe light flashes and I hear...

CK your hori output Transitor and behind it is a blue high voltage capacitor 2k sometimes they will have small burt hole on them ,If it is OK then Replace your STK ICs example STK392-110 Mats has them 1-800-628-1118

Feb 15, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony KP-57WS510 convergence problem. One web site

You can get original Sony STK392-560 chips from They have a OEM chips from Sony and come in the original Sony boxes. There limited supply.

Sep 16, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Tv turns on but has a shadow around evrything

Do you have any speakers or magnets next to the tv? If so, that is not good.
It may be a convergance issue. Check to see if you have any adjustments on the back of your tv to adjust picture. If not, if may be a faulty capacitor that needs to be replaced

Jul 02, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Nothing happens. power on,can hear click

I had the same problem, but I saw the events leading to it. I was watching TV, went to help the wife, heard a pop, came back to find the TV off. Turned it on, heard the same click you described. I believe you need a new bulb. Mine lasted around 2 years of heavy use. Bought two on ebay. Make sure to consult your manual for the particulars on the bulb.

Jan 07, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony KP-57WS500

did you replace or check the 4.7 ohm 1/2 watt resistors or the 6 pico fuses when you changed ICs? If not thats most likely your problem.

Jun 21, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony 57 inch


there is two STK packs in your TV, this is what controls your convergence,it should be two big IC on big heatsink and number should start with STK- ______,just replace these STK packs and you can order these from Parts should be somewhere around $30 and also make sure that resistors around stk packs don't look like they been hot if they look like they been hot just replace them too, and your TV will be working fine.


May 11, 2008 | Sony KP-57WS500 57" Rear Projection...

Not finding what you are looking for?
Sony KP-57WS500 57" Rear Projection Television Logo

Related Topics:

89 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts


Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

72670 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

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

Answer questions

Manuals & User Guides