Question about Sony KP-51HW40 51" Rear Projection Television

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ICS problem? I posted a picture of the problem., Does this seems like a bad ics? Thanks for your replies. I appreciate it.

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Dont see the picture but if its a 3d and the colors wont converge replace both STK392-570 ICs. You can get replacements here with free instruction with pictures. Heres the link.
http://servicemanuals.vstore.ca/

Posted on May 16, 2008

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2 Answers

When i turn on TV red light is off and I get no sound or picture. I can hear the clicking noise like it is going to start but it doesn't


Hi my name is Eric,
I hope I can help you with your issue ,
Something is shorted causing the shutdown circuits to
be kicking the set off.
Most likely cause the convergence ICs, do a visual of the resistors near the ICs on the large heatsink with fins on it, If any are burnt thats your problem.
they are part # STK392-110
Do a google search to find some.
If none are burnt the ICs may still be bad or the sweep board may be causing the issue.
These aren't easy to fix yourself, a repairman would charge between $300-$650 depending on if its just the ICs or the sweep board
 
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond until this post expires,
I will reply asap
Thanks
Eric

Sep 26, 2009 | Hitachi 57F500 57" Rear Projection...

2 Answers

RCA P52960 Problem (bowed picture)


Normally this is either bad connections on the convergence ICs or defective ICs. If you can solder, you should be able to fix this. First locate the convergence ICs: large black ICs attached to a heat sink that shouldbe marked STKxxx. Try resoldering the pins on these ICs first. If that fails, replace the ICs.

Keep me posted.
Dan

Nov 20, 2008 | RCA P52960 52" Rear Projection Television

1 Answer

Bowed picture with RCA p52960


This is a convergence problem and can be either bad connections at the convergence ICs or defective ICs. Try resoldering the pins first. If that fails, replace the ICs. These ICs are large, black and attached to a heatsink. It should be marked STKxxx.

Keep me posted.
Dan

Oct 24, 2008 | RCA P52960 52" Rear Projection Television

1 Answer

The picture is distorted. It appears as the picture is being drawn to the center of the screen.


This is a convergence problem. This can be either bad solder connections at the convergence ICs or defective ICs. If you can solder, you can fix this yourself. Try resoldering the pins on the convergence ICs. If that fails, replace the ICs. These are large black ICs attached to a heatsink.These should be marked STKxxx.

Keep me posted.
Dan

Sep 30, 2008 | Sony KP-65WS510 65" Rear Projection...

1 Answer

Follow up to JUL 9th distorted picture question


That would be the convcergence ICs and feed resistors that need replacement. Can you reply to this same post and verify that your model is the R56W36? I will then post the correct ICs and feed resistors for your model as well as a link where you can get replacement ICs and resistors with free instalation instructions with pictures.

Jul 14, 2008 | Zenith R56W36 56" Rear Projection...

2 Answers

Mitsubishi WS65909


This is a convergence problem and can be as simple as bad connections on the pins of the convergence ICs to defective ICs. If you can solder, try resoldering the pins on the ICs, If that fails to resolve the problem, replace the ICs. These are large black Ics attached to a heatsink and should be marked STKxxx. Depending upon the exact ones in your set, the cost should be between $15-$25 each (there are 2).

Keep us posted.
Dan

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

1 Answer

Reply


yes the white paste is heat sink compound which transfers heat. Be careful using ICs from places that your not sure of as most sell cheap chinese knock off and not the origional Sanyo units . STK ICs are made by sanyo, but be aware when you use cheap knockoff chips as they can short out usually within minutes and cause alot of extra problems such as causing resistors to go open. I just helped a guy last week that spent 5.99 on new ICs installed them and proceeded to burn every resistor in his convergence circuits when the new ICs he purchased on line shorted out. Let me know how you make out.

May 29, 2008 | Samsung PCL6215R 62" Rear Projection...

1 Answer

Convergence Amp IC Shot


yes the convergence ICs are bad, they are stk392-110 but be careful where you get replacement ICs as alot of places sell cheap chinese made knock offs that dont last . I deal with servicemanuals.vstore.ca alot and have never had even one IC go out so I use them exclusively now.

May 18, 2008 | Panasonic PT-56WX53 53" Rear Projection...

3 Answers

Convergence problem


The Stk392-120 are better ICs if you would like a link to get new ics that provide free instalation instructions with pics let me know and I will post the link.

May 15, 2008 | Hitachi 53UDX10B 53" Rear Projection...

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