Connect with us

Sony convergence problem

Discussion in 'Electronic Repair' started by justdave1, Jan 6, 2004.

Scroll to continue with content
  1. justdave1

    justdave1 Guest

    35" set model KV-35v36 about 6 years old has poor convergence of the green
    vertical lines to red and blue (together fine) of the crosshatch pattern -
    OK in the center, but off 1/8" or more at either edge. I know how to access
    the service menu and have tried several adjustments unsuccessfully, each
    time returning to the factory setup. I recorded all the settings 1st, & have
    explanations of what they do, but few of the convergence adjustments show up
    on the menu. Anybody know how to adjust or fix this? Any help will be
    appreciated.

    TIA.

    Dave
     
  2. David

    David Guest

    Stop screwing with the service mode. Your tv set has to be manually
    adjusted by a qualified and trained technician who knows what they are
    doing. The convergence is set by the crt magnet rings and bi-metallic
    strips carefully placed between the yoke and the tube. There may also be an
    h-stat control that will have to be properly set first if it needs
    readjusted for the age on the tube, sets the red and blue.

    Of the XBR Sony sets that have minimal convergence adjustments, it is a very
    careful and experienced eye to know when to use the convergence circuit,
    versus the bi-metalic strips between the yoke and tube.

    Sony tubes with the aperature grille take an extra special care and
    experience in order to adjust properly.

    David
     
  3. Jerry G.

    Jerry G. Guest

    That was put right on the button! Well said!!!

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    =========================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    =========================================


    Stop screwing with the service mode. Your tv set has to be manually
    adjusted by a qualified and trained technician who knows what they are
    doing. The convergence is set by the crt magnet rings and bi-metallic
    strips carefully placed between the yoke and the tube. There may also be an
    h-stat control that will have to be properly set first if it needs
    readjusted for the age on the tube, sets the red and blue.

    Of the XBR Sony sets that have minimal convergence adjustments, it is a very
    careful and experienced eye to know when to use the convergence circuit,
    versus the bi-metalic strips between the yoke and tube.

    Sony tubes with the aperature grille take an extra special care and
    experience in order to adjust properly.

    David
     
  4. justdave1

    justdave1 Guest

    Thanks for the advice!

    Fortunately, I've made no changes to the service adjustments I haven't
    already undone.

    I did adjust the magnet rings 1st to improve the convergence in the center
    (carefully marked the original position with a white paint pen, so I could
    return them to factory position as well, if necessary).

    I promise not to mess with them, but could you explain how the bimetallic
    strips work, please? Are they magnetic, or shields (like mu metal?)?

    How much should I expect to pay for professional convergence (FL, USA),
    assuming only adjustments are necessary?

    Thanks again.

    Dave
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-