Re: Convergence problems on AV-48WP30

Excellent diagnosis by Carlos. IC804 controls red convergence. But in time IC805 will also fail as well. Replace them both with STK392-110. Also, check for cold solder joints in the vicinity of these ICs. If you want a schematic for this unit e-mail me.

Eric

Reply

• Re[2]: Convergence problems on AV-48WP30 Steve Moore - 26th Jul 2008 19:00
  I am also having trouble with my blue convergence. I would appreciate it if you would e-mail me a copy of the servoce manual and schematics
  
  
  • Re[3]: Convergence problems on AV-48WP30
    Kevin
    - 26th Jul 2008 23:42
    Eric, I too am having some trouble with my convergence with my 48wp30. It would be greatly appreciated if you could send me the schematic manual as well. Thanks a million!
    
    
• Re[2]: Convergence problems on AV-48WP30
  MIKE
  - 27th Sep 2008 3:43
  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.
  
  
• Re[2]: Convergence problems on AV-48WP30
  Don
  - 8th Dec 2008 20:50
  Eric,
  I too have the red convergence issues. Could you email me the manual and schematic information along with the replacement IC information. Thanks in advance for any help.