Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

3 Answers

Red, Green, and blue

First I replace the ICS t.v. still showed red, blue, green. Took it back apart found the upper 5amp fuse on the G board bad replace it. Put the t.v. back together, Still didn't work. Took it back apart to find the same 5 amp fuse blown also, a 3.15 amp fuse is blown. My next step is thowning the t.v. in the trash cause i'm not payin $400 to get it fix. Can someone please help me!

Posted by on

  • 3 more comments 
  • lilrere Feb 05, 2008

    so so when i ohm the ics pins i should not get any continuity between them

  • lilrere Feb 06, 2008

    The part number for the IC's is STK392-560 same as the original ones.

  • Anonymous Feb 29, 2008

    Sony KP-46WT500 46"rear proj. has an hourglass effect happenning at top and bottom. Green lines in pic that show more so in darker scenes and a blurry effect or ghosting, in red,blue and green.

  • Vista Electronics May 11, 2010

    Do a pin-by-pin comparison of one IC to the other...they should

    check very close to the same on your ohmmeter......

    What do you read?..............T.

  • Vista Electronics May 11, 2010

    What part # and quality IC's did you use ?...........T.



3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I have also replace % amp fuse on g board my tv works for day and then fuse again, It happen two time any Suggestion.

Posted on Feb 28, 2008

  • Anonymous Feb 28, 2008

    I mean after i have replace 5 Amp fuse on G board and both ic on D board my tv works perfect for one day and then 5 amp fuse blow again it happen two times how do i solve this problem.



  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 113 Answers

Those fuses usally blow when the ics are shorted. Are you sure that you were careful soldering them in and did not have any bridges? Also you make look for some resistors that have changed value on you after all of this.

Posted on Feb 05, 2008

  • Anonymous Feb 05, 2008

    Well that all depends to because some of the pins are ground so those would have it. You just need to look at them and see if you can see anything where you could have bridged the solder connections. Check PS 8001 and 8002 make sure they are not open hopefully this gets you closer.



  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 5 achievements.


    An expert who has achieved Level 3.


    An expert that has over 500 points.

  • Master
  • 440 Answers

Sell it on ebay as broke they go for 100 just a idea look like u tryed alot

Posted on Feb 05, 2008

1 Suggested Answer


6ya staff

  • 2 Answers


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

Pioneer 65" TV Model # SD-643HD5 won't power up.

I would suggest replacing the board itself, chances are what caused those fuses to blow is still faulty. did you check those fuses again after you powered it back up?

Jun 12, 2011 | Pioneer Televison & Video

1 Answer

The tv shows only red and blue it projects three

You need to replace Both STK ICs . They are Big Black ICs and will have PN# on them
example STK392-110
Mats has ICs 1-800-628-1118
Also check the Pico Fuse in Front and back Of ICs they look like resistors ,But will be Green or Yellow 5amp, 6amp, 7amp.

Feb 22, 2011 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Although tv is showing picture the colours only showing background etc are green and blue

Your TVs red colour output section has the trouble. There is no red output at the red cathode of the picture tube. The red, green, and blue output sections are on the picture tube base board. In some Philips model, these will be consists of transistors, and some has an IC or Tree ICs for three colour output used. You just open your TV, measure the voltages at these three cahodes. There will be markings on the printed circuit board for these cathodes marked as [Rk,Bk and Gk].
In your TVs case the voltage at the Rk marked pin will be higher that the other two cathodes. This can be caused by an open drive transistor or an Ic whichever may ysed there. If it is transistor, just replace it with a same type and number, as in the ace of ICs the related Ic, must be replaced. If only one Ic is uded for red, green and blue outputs, that Ic must be replaced.
If you need any more assistance, feel free to get me through Fixya. Ok.

Dec 01, 2010 | Philips CCB130AT 13 in. Combo

1 Answer

I have a rear projection tv model number kp-61v90 i have no picture sound works menu shows also at the very top of screen there are lines red blue and green help me make this repair please

From what you have said , Replace both of your STK ICs they are big black ICs will have part number on them example STK392-110
Go by the number printed on them if they are 110s use the 180s they are better ICs Mats has them for $10.95 each 1-800-628-1118

Also go to this website/use Google Encompass Parts Distrubtion
1-800-638-3328 sometimes they will have free service manuals you can print out.

Another thing you need to CK pico fuses they will look like resistors only they are green or yellow 5amp/ 6amp fuses Look in front of ICs and some are located behind ICs.

Mar 17, 2010 | Televison & Video

2 Answers

My screen is green and red, kinda like a 3d showing

The problem with the unit is convergence.Remove convergence output board then replace IC2701 and IC2702 both of them are STK-392-120,After replacing ics you have to go into the menu of unit to adjust convergence.Align the red ontop the green then blue ontop the green.

Oct 03, 2009 | Zenith R57W46 57" Rear Projection...

1 Answer

Started see red and green in the tv picture and a funny looking line in upper left corner. words on screen are shaddowed with red and green

Replace both of your STK convergence ICs will have part number on them also ck pico fuses around ICs they will look green or yellow like resistors, but are Fuses.STK392-110 example.

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

1 Answer

Works but prdominantly green, can't ajust with color controls

The lcd polerizer(not sure this is proper name ) is bad.It has three: red,green,blue and one of them is bad. I also have a similar issue but only on the left side. Took it apart and found the bad one.

Mar 07, 2009 | Sharp Notevision XG-NV6XU Multimedia...

1 Answer

How do i center the colors, red, blue and green?

Replace Both of your convergence ICs STKs, big black ICs.
STK392-560, also CK pico fuses around ics you may have 1or2 bad .


Jan 01, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Cant tune red bulb

Check pico fuses F9A04 and F9A05 if either one of those picos are open it means the convergence Ics are bad along with the picos. Your set uses two STK392-570 ICs and the two picos are both 5amp picos. You can get replacement parts and installation instructions at the following link.
The pico fuses are located on the second board from the right heres a pic of where they are.b86c4db.jpg

Nov 25, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Convergence ICs

the green is half controlled by half of each of the convergence Ics meaning green horizontal is controled along with the red and green vertcal is controlled along with the blue Ics. So if you have replaced both Convergencs ICs the problem is most likely a resistor that is in the green circuit. You will need a schematic to locate which resistors are in the green vertical and horizontal convergence circuit

Jun 07, 2008 | Toshiba 55H70 55" Rear Projection...

Not finding what you are looking for?
Sony KP-46WT500 46" Rear Projection HDTV-Ready Television Logo

Related Topics:

61 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76143 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1691 Answers


Level 3 Expert

13434 Answers

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

Answer questions

Manuals & User Guides