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

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Kp-46wt500 convergence problem

I have replaced the convergence chips, and all six pico fuses and I still get the tv flashing 5 times in standby and the heat sinks for the convergence chips feel cooled. Tv still has convergence issue but not as bad. Any ideas?

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  • Edward
    Edward May 11, 2010

    Did you replace the pico fuses on the G board? I beleive they are 5 amp? 


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  • Sony Master
  • 5,138 Answers

High Voltage Trippler.

Posted on Feb 16, 2009

  • ladywinn
    ladywinn Feb 16, 2009

    CK Q705-732-761 on C board and CK Q218-219-220 on A board or even try turning up screen drives You can use the Self Diagnosis Mode by Pressing Display,Ch5,vol-,then Press Power to exit back out of Mode do the same as above but after you press power then press 8 then Enter.

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How to go in service mode for tv sony kp-46wt500.i did change the stk ic,the convergence is good in the midle but bad on the side


Did you replace the pico fuses on the G board there are two and usually one will blow when the old ICs fail and just replaceing the two ICs on the D board will usually not fix the issue untill the two pico fuses are checked and the blown one is replaced.

Mar 20, 2012 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Replaced Convergence chips, same problem


This set has pico fuses on convergence board and also on G power board, there should be 2 5 amp pico fuses on power board.

If convergence is bad exactly as before double check the power board fuses and check to see if voltage (it is marked!) is there with power board disconnected from chassis..

Steve
3_1_2012_5_47_54_pm.jpg

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Kd-46wt500 sony big screen colors dont line up is projectors goin out picture on tv is blurry pic looks stretched out as well


Can you verify the model number and see if its A KP46WT500 model? If so chances are just the convergence Ics ( stk 392-560 ) and pico fuses are the problem. There are 6 3.5 amp pico fuses directly beneath the heat sink fins on the D board ( where the Convergence ICs are located) Check those six pico fuses and also two 5 amp picos on the G board ( where power cord plugs in) if any of the picos on either board are open then the Convergence ICs will require replacement.

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My Sony KP-46WT500 TV does not turn on. Red standby light blinks and goes out.


possible bad convergence chips and the two fusses in the power suply or bad tube I need to know how many times does the stand red led flashes after it powers down

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1 Answer

Ghost on the screen, blue in color


Did you check the six 3.15 amp pico fuses on the D board in line with the resistors and the two 5 amp picos on the G board? Usually one or more of the Picos will blow especially on the G board

Nov 24, 2009 | Sony KP-46WT500 46" Rear Projection...

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Kp46wt500 covergence problem


Check the fuses. If a convergence amp goes out, usually one or both fuses go as well.
I'd check the power resistors in the vicinity for opens as well.

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1 Answer

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You may want to get some help with this install...goto www.tvrepairkits.com and ask for some help

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1 Answer

Kp-46wt500


the pico fuse are the two little yellow resistor looking things under the heat fins of the convergence chips

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1 Answer

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converge chip failing after warm up fairly common
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