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

3 Answers

Blue red and green lines thorugh 1997 Sony 50" rear projection

T.v. shows red, Green, and Blue as three separate colors instead of one clear picture.
Doesnt go away.

I have heard this is an easy fix. What should I do and how do I fix it?

Posted by on

  • danie_c_2002 Feb 19, 2008

    Where can I get the chips from???

  • danie_c_2002 Feb 29, 2008

    thanks guys this worked great! the only thing now is that the TV is shutting of one its own after a few mins. it wasnt doing this until about three days after I replaced the chips.



    i did put a generous amount of heat sink on the chips as suggested to prevent them from getting too hot.



    Any Ideas?

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3 Answers

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Confirmed Hitachi subs all STK392-110,120 and 150 to
STK394-160 ....I use Hitachi part number CZ 01341 = no re-calls
..................T.

Posted on Feb 21, 2008

  • Vista Electronics Feb 21, 2008

    Note: Sony convergence IC part number is STK392-560....

    DOES NOT SUB TO STK394-160E !!! Be careful.....confirm

    Sony Model # and IC part #...................................T.

  • Vista Electronics Mar 01, 2008

    Please confirm Sony model # off the sticker on the back of your

    TV and what part number did you use....from....price...?

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You need to replace STK392-120s maybe 150s these are your convergence ICs they are 2 Big Black ics replace them both! you can order ics Electronix 1-800-223-3205
up grade ICs to STK392-180s these are better ics last longer hold up better. Or you can order on line http;//www.electronix.com ThankYou for using FixYa. Have a Nice Day.

Posted on Feb 20, 2008

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Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Posted on Feb 19, 2008

  • Cary Farah
    Cary Farah Feb 20, 2008

    STK392-120 Hitachi
    replaces these with STK394-160, for other sets it may not be a good
    sub. They have been fine in the Philips sets so far.

    STK392-150 replace with STK394-160

    ***The 394 series replaced the 392 series and is cooler running. The
    subs listed here are the ones that I know to work in most sets.







    http://www.mouser.com/index.cfm?handler=...




    http://www.mcmelectronics.com



    http://www.bdent.com



    http://www.electronix.com

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1 Answer

Re: Toshiba 65 in Cinema Series - 12 years old. Color Separation. Green bow at top center of screen, red and blue double images tilting upwards toward sides. Sometimes clears unassisted after set has...


projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

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  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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7859b01.jpg

e87380c.jpg

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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There is just three lines that show red, green and blue.


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Picture Menu
Picture Mode: Expert1
*Backlight: 16
*Contrast: 83
*Brightness: 53
Sharpness: 50
*Color: 55
*Tint: 0
Expert Control
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  • Noise Reduction: Medium
  • Gamma: Medium
  • Black Level: Low
  • Real Cinema: On
  • TruMotion: Low
  • Color Standard: HD (N/A w/HDMI)
  • White Balance: Warm
  • **Method: 10-Point IRE
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      • **Red: 1
      • **Green: 2
      • **Blue: -16
    • 20 IRE
      • **Red: -6
      • **Green: 0
      • **Blue: -7
    • 30 IRE
      • **Red: -5
      • **Green: 0
      • **Blue: -4
    • 40 IRE
      • **Red: -8
      • **Green: 0
      • **Blue: -4
    • 50 IRE
      • **Red: -4
      • **Green: 4
      • **Blue: -4
    • 60 IRE
      • **Red: -6
      • **Green: 6
      • **Blue: -5
    • 70 IRE
      • **Red: -8
      • **Green: 3
      • **Blue: -10
    • 80 IRE
      • **Red: -8
      • **Green: 7
      • **Blue: -16
    • 90 IRE
      • **Red: -9
      • **Green: 5
      • **Blue: -18
    • 100 IRE
      • **Red: -10
      • **Green: 4
      • **Blue: -9
Color Management System
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  • Red Tint: 0
  • Green Color: 0
  • Green Tint: -15
  • Blue Color: 0
  • Blue Tint: 11
  • Yellow Color: 15
  • Yellow Tint: 2
  • Cyan Color: -15
  • Cyan Tint: 0
  • Magenta Color: 0
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lg70 nice tv excellent processor just to bad there is no intensity control on color management oh well still better than what the three s are pushing block out the hype lg will be number 1 in a few years haters are starting to come around and well leds coming,

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