Convergence problems on AV-48WP30

Can't adjust the red horizontally

Convergenge went out suddenly about a week ago. I can adjust the blue horizontally and vertically. The red will only adjust vertically. However, the horizontal is way out of whack. Any ideas? Thanks

Reply

• Re: Convergence problems on AV-48WP30 Francis - 12th Dec 2006 3:57
  I hate to be a "me-too" but can someone please send me the how-to for fixing the convergence problem. Red convergence out of whack in the upper left and lower right. Thanks in advance.
  
  
• Re: Convergence problems on AV-48WP30 Francis - 12th Dec 2006 4:18
  Sorry, not a how-to. The schematic would be sufficient. Just need to locate the IC to replace.
  
  
• Re: Convergence problems on AV-48WP30 Peter - 14th Dec 2006 19:00
  Hello everyone. I am also having the same red convergence problems with the JVC AV-48WP30. Could someone please email me the schematics and/or manual or a guide to replacing the 110 part with the STK392-150 part. I read that when going to the 150 part, there is also a resistor change.
  
  Any help with be appreciated.
  Thanks
  
  
• Re: Convergence problems on AV-48WP30 Troy B - 28th Dec 2006 2:04
  I have replaced the chips, but now the overall height of the picture is too high on the screen. What is the best way to adjust it down?
  
  
• Re: Convergence problems on AV-48WP30 Otis PB - 28th Dec 2006 23:10
  I'm having the EXACT same problem on an AV56WP74 (56" iArt). The Green and Blue looks fine, but the Red is unable to converge horizontally.
  
  Any help (schematics, etc.) would be great. Thanks!
  
  Also has anyone else tried complaining to JVC? I did, but so far have been totally ignored. JVC has yet to even reply. It seems to me that if all of us are having the same problem JVC manufactured a defective product.
  
  
  • Re[2]: Convergence problems on AV-48WP30 r - 18th Aug 2007 4:20
    vI 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 replaced the missing silver box on the new board and 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
    
    
• Re: Convergence problems on AV-48WP30 al - 29th Dec 2006 6:22
  I have a AV-48WP43 I looked on JVC parts site and the 30 and 34 have the same board. can I please get the convergence info evryone has been speaking about, I have wavy red convergence. Also I noticed that on one post it said the 110's were replaced for 150's, I dont have 110' but I do have 150's (resistors), any reason for this???
  
  
  • Re[2]: Convergence problems on AV-48WP30 al - 29th Dec 2006 6:45
    sorry about the 110 and 150 thing I understand what you mean, do have the 110 IC how do I check it??? Please send me guide.
    
    
• Re: Convergence problems on AV-48WP30 roger - 30th Dec 2006 7:59
  I need the same guide to fix my JVC too. Thanks.
  
  
• Re: Convergence problems on AV-48WP30
  mike
  - 30th Dec 2006 20:12
  I have the JVC AV-48WP30 and I am having trouble with the red not adjusting hrzontally can you please send me the part number and instructions?
  
  
  • Re[2]: Convergence problems on AV-48WP30 DJ - 30th Dec 2006 21:41
    Hello All, I bought the AV-65WP74 about 3 years ago and just had the same red convergence problem. I am in Germany so I had to rely on a German repairman to resolve. He replaced both STK392-110s for about $180.00. I thought it was a bit too much at first but since reading the string, I think I came out alright. I guess it will depend on how long the fix lasts, it looks great now, but it just got fixed today. I really like the TV so I am glad it is working right again. Best of luck to you all and Happy Holidays
    
    
• Re: Convergence problems on AV-48WP30 Chris - 20th Jan 2007 20:59
  Hi Eric, I'm having the same convergence issue with my JVC AV-48WP30. The R842 resistor is obviously blown. Could you send me a copy of the schematics, I can't tell what type of resistor this is. Thanks! -Chris
  
  
  • Re[2]: Convergence problems on AV-48WP30 Otis PB - 9th Feb 2007 9:10
    It is a 2.2 Ohm 1 Watt resistor at 5% Varience. Look for 2 red bands followed by 2 gold ones on the replacement. I had a little bit of trouble finding one in Louisville. I finally got one at a place called "Master Distributors" for about 60 cents. I replaced mine with a 2 Watt resistor to hopefully prevent a future burnout.
    
    
    • Re[3]: Convergence problems on AV-48WP30 r - 18th Aug 2007 4:21
      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 replaced the missing silver box on the new board and 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
      
      
• Re: Convergence problems on AV-48WP30 Otis PB - 9th Feb 2007 9:09
  It is a 2.2 Ohm 1 Watt resistor at 5% Varience. Look for 2 red bands followed by 2 gold ones on the replacement. I had a little bit of trouble finding one in Louisville. I finally got one at a place called "Master Distributors" for about 60 cents. I replaced mine with a 2 Watt resistor to hopefully prevent a future burnout.
  
  
  • Re[2]: Convergence problems on AV-48WP30 Greg - 12th Feb 2007 1:39
    Hey I have a av-48wp74 and just today after 3 years of flawless use the convergence was off, i tried to adjust it but the red wont adjust side to side . only up and down. i've read there is a fix and yours is the closest to my problem can you help me out Im very handy and capible of soldering in a new resistor,, Thanks........... Greg
    
    
    • Re[3]: Convergence problems on AV-48WP30 Greg - 10th Apr 2007 22:56
      I fixed this with no problem otis sent me a link to order the parts I spent like $40 bucks and removed the board from the front of the tv, its kind of fragile so be care full . also tvs can kill you so unplug and dont touch anything it can still bite unplugged. I de-soldered the 110"s got a cheep de-solder tool like a small turky baster from radio shack and resoldered in 150's and a new resisor and re placed all the wired plugs and it works Great ,, man i love the internet thanks for the help....
      
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  • Re[2]: Convergence problems on AV-48WP30 Greg Holk - 12th Feb 2007 1:40
    Hey I have a av-48wp74 and just today after 3 years of flawless use the convergence was off, i tried to adjust it but the red wont adjust side to side . only up and down. i've read there is a fix and yours is the closest to my problem can you help me out Im very handy and capible of soldering in a new resistor,, Thanks........... Greg
    
    
    • Re[3]: Convergence problems on AV-48WP30 Nicole - 13th Feb 2007 2:56
      Eric sent me the files, I uploaded them on a website so he doesn't have to keep emailing them out. Here is the website (this board wont let you paste websites so remove the spaces) h t t p:// home.comcast.net/ ~dande76530 /Convergence.html Then right click on each link and click "Save As." Also, if you do a search on electronix.com for "STK392-150" you'll find the part for $9.99. Good luck
      
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