Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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Convergance Board JVC AV-48WP74

Could you please tell me how to decipher which component is the convergance board in the TV

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Re: Convergance Board JVC AV-48WP74

It will have a large heatsink with at least two large IC with the numbers STK392-xxxx

Posted on Jan 09, 2008

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It has alot of tint pruple , like 3d .

hello my is rico and i work on tvs sometimes. it looks like bad convergance but on this tv sometimes has cold solder on the power supply, on the flyback with cold solder, and pico fuse with 5amp. check your board inside your tv underneath for cold solder on the entire board, if you need more help with your tv feel free to call me at 602-810-7149 i live in mesa az

Dec 29, 2010 | JVC AV-48WP74 48" Rear Projection...

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I have a JVC AV-48WP74 48 in. Rear Projection

Must know basic soldering and have tools like soldering iron,a desoldering pump or desoldering witchs to replaced parts on the tv convergencce board.U have none of these tools devices and never solder bsfore,better hire the tv tech. to do the job.Cost estimate 300-350 for parts and labors.Tries wesite like, to buy a whole convergence kit,to do it ur self,if u can?

Jul 25, 2010 | JVC AV-48WP74 48" Rear Projection...

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I have a JVC I'ART projection hdmi 1080 model #av-48wp74 .it is 6 yrs old and it started to get a double image [ghost]and the colors are off. i tried the auto convergance but to no avail???

If this is not resolved soon, the picture will start to bow from the top and bottom. This is a common rpoblem with CRT based projections sets and is in the convergence circuit. If you can solder, you may be able to resolve this yourself. Be aware that there are potentially dangerous high voltages present inside the set even when unplugged.

The problem can be as simple as poor solder connetions at the convergence ICs or defective ICs. In any case, these ICs are large and black and are marked STKxxx. If you can locate these, try resoldering the pins on the ICs. If that fails to resolve the probelm, replace the ICs.

Please keep us posted.


Oct 05, 2009 | JVC AV-48WP74 48" Rear Projection...

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Make sure you bought genuine Sanyo chips...if not goto and get theirs.

Aug 05, 2009 | JVC AV-48WP74 48" Rear Projection...

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Need wire diagram jvc av-48wp74

That should have everything you need.

Feb 05, 2009 | JVC AV-48WP74 48" Rear Projection...

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I have a jvc av48wp30 tv and need a wire diagram

Looking the convergence board from the side of the resistors (The chips will be behind the resistors), you have from de left to right:

1.5 ohms, 150ohms, 220ohms, 2.2ohms, 3.3 ohms, 220ohms, 1.8ohms, 220ohms, 150ohms, 150ohms, 1.5ohms, and dispose horizontal in relation of the other resistors (the one near to the Ic is 2.2ohms and the other is 220ohms).

Hope this helps...

Feb 02, 2009 | JVC AV-48WP74 48" Rear Projection...

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CLASS HD Convergance ploblem

You need to replace STK ics which are convergence ICs in your tv

You can get from the link below

Click this link to get convergence IC

It will cost you $20-30 to buy these IC .

Jan 30, 2009 | JVC AV-48WP74 48" Rear Projection...

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Convergence board

do not remove the back panel to that model with the power cord still plugged in cause if you do the digital section of the TV will be completely wiped out. The convergence board is in the front behind the speaker grille and small access panel its the first board after the access panel its on the right side rectangle board. You can get a convergence board at the following link just leave an email with your model number and what your needing. I work there as a support tech and they just got those boards in yesterday and havent even listed them yet. Heres the link.

May 21, 2008 | JVC AV-48WP74 48" Rear Projection...

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Getting to th convergence board jvc av-48wp74

why do you need to get to the convergance board

Nov 02, 2007 | JVC AV-48WP74 48" Rear Projection...

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I had a problem with my TV colors not lining up. One day I turned it on and the green was out of wack. I checked this message board and replaced the STK chips, bad soldering and all led to me just giving up on that and buying a whole new Convergence Board ($185). I just plugged this in and though now my Green lines up okay, my red is out of whack. Is there something I am doing wrong? Can anyone help me? Did i miss a step? Frustrated......Bruce

Jul 29, 2007 | JVC AV-48WP74 48" Rear Projection...

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