Question about JVC AV-48WP30 48" Rear Projection Television

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Convergence problem I have had the convergence board replaced once before. When the technician came out i did'nt watch him replace it. Where is the convergence board located on a jvc av-48wp30 in. rear projection tv. Thank you for your time in this matter. John

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  • jtanderson Jun 29, 2008

    have a jvc AV-48WP30 NEED A CONVERGENCE BOARD, TRIED TO SET LINES BY PUSHING BUTTON ON IT FOR RED AND USING REMOTE TO SET UT, MOVED LINES TO FAR AND TV WENT OUT. POWER BUTTON LIGHTS UP BUT NO PIC AND SOUND. I UNPLUGGED THE POWER TO THE CONVERGENCE BOARD AND EVERYTHING IS NORMAL BUT WITH THREE PICTURES. I LIVE IN LONDON ONTARIO AND WOULD LIKE TO BUY A WORKING CONVERGENCE BOARD jtanderson_01@hotmail.com

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  • JVC Master
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Its located in the front behind the speaker panel there s a nother small access panel the convergence board is right there on the right hand side up front.

Posted on Jun 03, 2008

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3 Answers

Colored lines at top and bottom when tv comes on and seeing double vision in different colors at all times


If your tv is not a DLP the problem is in the convergence, try to adjust it using your original remote control go to the setting menu then to the convergence section. Adjust the red and blue convergence. you should move the red and the blue in up, down and left, right if this color does not move far enough your convergence IC is already defective. Replacing this convergence IC will solve the problem. In locating this convergence IC you should remove the back cover of your unit but be sure to unplug it before doing this. This convergence IC is attached to a large aluminum plate, it is the heat sink, and it has a marking of stk- ### followed by numbers. You can try to pull it out using a soldering iron and soldering pump but be careful you may damage the board and cause much problem to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards.

Aug 28, 2011 | RCA Televison & Video

1 Answer

My red and green color is not in line it kind of looks like a shadow or watching 3d without the glasses


Hi Tim,

If the symptom didn't cure by convergence adjustment through the remote control, the problem is in the convergence board inside. The common parts fault is the convergence IC and some of the resistor once isolated and replace with new one, your unit will back to normal again. If you don't have necessary tools and test instrument and can't do the job yourself, I would advice you to look for a technician to fix the problem.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Mar 06, 2011 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

Our picure appears to look like watching a 3d movie with no glasses it appears to be th e red convergence if you do the auto convergence it sometimes fixes it for lil while and goes bk to same problem...


The syptoms you describe point to a bad convergence amplifer board. The crosshairs not moving on red is indication of this. However i must point out this set divides up the convergence of this set among four different boards. it is my belief its one of two boards. the convergence amplifer board which can easly be replaced. however it just might be the green looking board called the small signal board. unfortantly this board takes special computer equipment to replace and align. i think union electronics might have convergence amp board = it getting hard to find rca parts for this set

Nov 03, 2010 | RCA HD52W59 HDTV Projection Television

1 Answer

Picture is showing double visions


Hi.

That means that the convergence ICs must be replaced.

The convergence ICs are two power amp chips located in convergence board. They must be de-soldered and replaced with new ones. Resistors in convergence board must also be tested and eventually replaced.

The job is about $250/$300 and must be done by a technician.

To get a quote on repair, call Sony at the number listed on the owner manual.

Dec 13, 2009 | Sony Televison & Video

1 Answer

RCA D61W20 Projection Television with ITC222 chassis Here is the whole thing , took this machine apart last night the mirror is in good shape cleaned the lenses, picture is much brighter now! However still...


unfotunatly the itc222 has no convergence ics it uses a series of trsansiitors. the fact that u have some areas of the screen clear may mean you need a technician to do a service alignment. when you go into setup does the convergence crosshairs move up and down and side to side on both the blue and red? if they do their may not be a problem with the power board. ONe more thing if you replace this board you will still need a technician to do a service alighnment

Jun 16, 2009 | RCA Televison & Video

2 Answers

Convergence


its hard to adjusttheconvergence once its messed up and i know you dont want to hear this but your best bet is to have someone come out and reconverge it for you so you doont go nuts trying to do it and not get it.i don like tv repairmen as a rule but they do know what they are doing and no matter how many people you ask on here you will always get a different answer

Jan 20, 2009 | JVC AV-56WP30 56" Rear Projection...

1 Answer

How & where do you install stk392-180 for a toshiba tz55v61


You have two convergence amps that need to be replaced on the convergence board.This is a very common problem with these units.The part # are STK392-110 but I would upgrade to a STK392-120 or a STK392-150.Also there may be a couple of low ohm resistors that need replacing.Depending on your electronics experience this job is pretty much a straight forward soldering job that requires a certain amount of knowlege.These parts can be obtained from partsstore.com.I as a technician charge between$185.00 in shop and $250.00 inhome for this repair.It is well worth it as this particular chassis really did`nt hve very many problems, and once fixed you will have a like new picture.Good luck!!!

Dec 31, 2008 | JVC AV-56WP30 56" Rear Projection...

1 Answer

TV displays red on screen


You have two convergence amps that need to be replaced on the convergence board.This is a very common problem with these units.The part # are STK392-110 but I would upgrade to a STK392-120 or a STK392-150.Also there may be a couple of low ohm resistors that need replacing.Depending on your electronics experience this job is pretty much a straight forward soldering job that requires a certain amount of knowlege.These parts can be obtained from partsstore.com.I as a technician charge between$185.00 in shop and $250.00 inhome for this repair.It is well worth it as this particular chassis really did`nt hve very many problems, and once fixed you will have a like new picture.Good luck!!

Dec 18, 2008 | JVC AV-56WP30 56" Rear Projection...

1 Answer

Convergence problem


YOU HAVE TO REPLACE IC BECAUSE IT IS BAD THE ICS NUMBER HAS CHANGE FOR STK392-110 TO STK392-150 THEY WILL SYAN MORE HEAT

Oct 13, 2008 | Hitachi 43UWX10B 43" Rear Projection...

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