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

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Convergence problem wiht jvc av 48wp30

I have a jvc av 48wp30 rear projection screen television.
About 5 months ago the convergence went out so I had a tech come out and replace the convergence IC's, he used two stk 392 110's.
A week ago ago the screen got an hourglass shape with the top and bottom screen bowing badly coupled with double vision look on screen.
I used the remote to attempt to adjust the convergence but although I could ge the arrows to move, i was unable to get the arrows to move far enough to get them lined up properly. Then just a few days ago after the set had been on for about 10 minutes it made a popping sound and the screen went dark. The blue power light continued flashing so i unplugged the set.
I ordered two more of the stk 392 110 convegence ic's online and received today. I carefully removed the old IC's and very meticulously reinstalled the new IC's. I even used a magnifying glass to make sure all new solders were secure.
The screen now lights up but i still have the convergence problem and when i attempt the use the remote to adjust the convergence the arrows won't move at all.
I have looked online to try to remedy the situation but have not found anyone with these exact circumstances. I am not a techie by any stretch of the imagination so in laymans terms can someone advise me on what they think the problem may be?

Any help would be greatly appreciated.

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  • JVC Master
  • 3,459 Answers

Bad chips...There are a ton of cheap fakes out there....Or bad resistor...

Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
Convergence problem wiht jvc av 48wp30 - 5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fixConvergence problem wiht jvc av 48wp30 - bb0cf99.png />
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Mar 25, 2010

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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JVC design is generally reliable. It is extremely unlikely that you would have 2 unrelated failures.

If you are in Canada, email me.


easyab


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