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

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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!

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  • 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.

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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

  • Roony231 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.

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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

  • Joshua Dobbins 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.

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

Posted on Feb 05, 2008

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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?

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You need to replace Both STK ICs . They are Big Black ICs and will have PN# on them
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