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

1 Answer

My av48wp34 I have a convergenace problem. I can't move my red convergeance up or down, and I have a green slope at the top and bottom of my screen. I had sound but we took it to a repair place here in town and then he called us the next day to say that the repair is going to cost $450 because the tv has no sound and that he needs to fix that too. We are pretty sure we had sound to the tv wheb we took it to him, but anyways if we can fix it ourselves what would we need to start and finish? Thank you!

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 934 Answers

The AV48WP34 is a lightbox PTV and therein could be your problem with the audio. If the box was removed for testing in the convergence it's possible that not all the jumpers are tight. Look at connection between pin 12 of T921 and K935 jumper for your 28v source I've made that mistake in this chassis before.
As to your convergemce problem it's most likely an amp failure. That unit takes two STK392-110 Sanyo amps and both should be replaced. On this unit convergence is easy through the front of the TV grill. The entire module can be removed for replacing the amps making installation a breeze if you're any good at soldering.
I'd recommend Acme for the amps http://www.acme-sales.net that way you won't get some chinnese knock-off... And you might even want to consider upgrading the amps to some STK392-150's (greater amperage) for greater reliability.
Bill

Posted on Mar 31, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sometimes after the my TV is one for 20 mins or so the screen warps, shooting white/pink/green lights across the top and bottom of the screen and placing a horizontal black line at the bottom like hal


Your TV most likely has a problem in the convergence circuits. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

May 19, 2009 | Hitachi 50FX20B 50" Rear Projection...

2 Answers

Puzzles 130 Too Many Queens 5 --- 132 Princess's Escape


puzzle 130:Assuming on a chess board 8x8 that each square is numbered 1-64 top left to right.Place a queen on each of these squares 3,13,18,32,33,47,52 and 62 bobs yer uncle

Mar 09, 2009 | Nintendo Professor Layton & the Curious...

1 Answer

CONVERGENACE ISSUE?


If you wish to get more details visit the site linked here. Convergence procedure to PTVs are given. http://electronicshelponline.blogspot.com/

Mar 04, 2017 | RCA MM61110 61" Rear Projection Television

1 Answer

Convergence. shadowing, arch top and bottom, red and green colors


You have a convergence problem. i see these set all the time at shop. first consult the article in tips and tricks section the fl231 fuse problem. it might provide some answer and might turn out to be a simple repair. If you do not have the convergence option under setup in customer menu then i say you have that problem.. otherwise it sounds like a convergence power board issue. if you have the options try autocovergence first and then if that fails try manual convergence of red and blue if the dont move then it will be convergence power board. let me know and ill try to talk you through it

Oct 06, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Convergence issue with blue


You need to replace the convergence Ics located up front behind the speaker grille numbers STK392-110 you can get replacements at the following link and they provide free tech support and instalation instructions with pictures. heres the link.
http://servicemanuals.vstore.ca/

May 06, 2008 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Projection HDTV Pansonic 47" Curving blue and green colors on top and bottom of screen.


You will need to replace your two convergence I.C.s.They are two large IC mounted on a large aluminum heat sink.Replace both,look for any burned resistors near them,replace those if needed,and readjust your convergence. Good Luck

Let me know if you need any further help

Mar 29, 2008 | Panasonic PT-47WX42 47" Rear Projection...

1 Answer

RCA 52


ok go into setup menu.... go to convergence.. try to adjust convergence .. does the crosshair move up and down side to side... if not then you might hqve q poblem with convergence power supply if they move then u might have s setup issue

Mar 25, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

JVC AV48WP34


Replace Convergenge IC's

Nov 06, 2007 | JVC AV-48WP30 48" Rear Projection...

2 Answers

Warped Picture, Separated colors


Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.

Feb 07, 2007 | Philips 60PP9352 60" Rear Projection...

Not finding what you are looking for?
JVC AV-48WP30 48" Rear Projection Television Logo

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72620 Answers

Jaime Hernandez

Level 3 Expert

2296 Answers

easy alberta
easy alberta

Level 2 Expert

132 Answers

Are you a JVC Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...