Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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IC's in the TV

Red Shadows, colers not ajusted

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Re: IC's in the TV

Yes i would need step by step assist and any other info would be good

Posted on Dec 27, 2007

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Re: IC's in the TV

Replace convergence IC's.......Do you need step-by-step help?
Let me know.........T.

Posted on Nov 22, 2007

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1 Answer

My TV color has yellow, blue and red shadows n the picture.

Enter Service mode.. Press Menu -0-1-5-7 in quick succession . From there select the convergence option. You should see 3 crosshairs -Red, Blue and Green. Green is fixed but Red and blue can be moved. Align both of them with green and see if the issue resolves. If not Try moving them around and see if the problem is cleared. If not you may have the inevitable convegence IC problem and the IC needs to be replaced. Let me know if that is the case and I will give you the procedure.

Jun 11, 2010 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

Red shadows in the picture

If convergence is skewed and will not adjust in the customer menu:

One or both of the STK-392-110 CONVERGENCE IC chips most of these sets use is bad.

Most of these sets have the convergence board all the way at the front of the set--you can gain access by removing front under the screen--that is held in by 2 screws on either side in the back and two tiny ones where the front control door is located.

Behind it there is a inspection plate--if you remove it you will see the board right behind it with 2 metal heat sinks2_bing.gif with fins. The chips are on the other side of the heat sinks.

This if you know how to solder etc is not a very hard set to do this repair on--Total parts cost if you buy them on Ebay (I can tell you the best seller there) is under 30 dollars.

If you think you can do the repair I can tell you what you will need and how to remove that board---the board is very easy to get out of the set--with it out you replace the chips and check for any damaged resistors--usually just both chips need to be replaced.

This type of repair usually takes me about a hour---I have done hundreds of them.

If you can not do the repair--most shops are going to get 300 or more for this repair.

Let me know if you have questions and I will help you.

If this information has helped you, rate this solution as I do this here for FREE.


Nov 29, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Multi coler

this set uses two convergence IC chips---they are STK-392-560---IF YOU have a 3 d picture both need to be replaced along with any defective parts around them and then the set needs to be adjusted in the Technical menu----if you need direct help contact me.

I would appreciate a vote from you if this was helpful.

Aug 11, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Red, Green, Blue curve upwards and cast shadows

that sounds like a typical Convergence IC problem..

this is a picture of what typical convergence ics look like

Mar 12, 2009 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

I cannot ajust the colnvergence blue is ok can"t ajust the red

Depending upon the set, the probable issue is either poor connections on the pins of the convergence IC or a defective IC. If you can update this with the make and model, I can confirm this and provide additional details and instructions.


Dec 09, 2008 | Projection Televisions

1 Answer

Mitsubishi rear projection tv

replace vertical IC and shadows/ghosting the problem is either electrolytic capcitor or video IC or convergence adjustment

Aug 18, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer


try to adjust the colour and balance

Jun 15, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Red Convergence on JVC AV- 65WP74

convergence amp ic bad
Sony Convergence

Jan 28, 2008 | JVC AV-65WP74 Rear Projection Television

1 Answer

Tv has red

you need a repair tech. you probably have a bad convergence ic

Dec 26, 2007 | JVC AV-56WP30 56" Rear Projection...

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