+ Reply to Thread
Results 1 to 5 of 5

Thread: SONY lcd mornitor, power seens ok. video signal switch off for no reason

  1. #1
    togtoo Newbie
    Join Date
    Jun 2009
    Posts
    4

    SONY lcd mornitor, power seens ok. video signal switch off for no reason

    picture will just disappear after running sometime.

    If switch off/on, sometime the picture can back.
    Or off a half hour, it will back again....

    seens video control/switch wrong?

    any body know this problem from sony lcd mornitor?
    Last edited by togtoo; 17th June 2009 at 12:08 PM.


  2. #2
    DrDave Newbie
    Join Date
    Dec 2008
    Posts
    10

    Sony LCD Monitor

    If it's one of the older LCD monitors with an external power supply you might want to open up the power supply and replace the larger value capacitors. I had this same problem and this cured it.Good luck

  3. #3
    togtoo Newbie
    Join Date
    Jun 2009
    Posts
    4

    ok...I tried to parallel a knowing good cap and
    saw improvement! So, it is right way to go.

    I am here also wonderring about: what if I simply
    parallel several ceramic 4.7uF to solve ERS problem?
    Keeping what it has..

  4. #4
    Super Moderator Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent
    Join Date
    Nov 2003
    Location
    Derbyshire, UK
    Posts
    29,371

    Quote Originally Posted by togtoo View Post
    ok...I tried to parallel a knowing good cap and
    saw improvement! So, it is right way to go.

    I am here also wonderring about: what if I simply
    parallel several ceramic 4.7uF to solve ERS problem?
    Keeping what it has..
    Remove the faulty electrolytic, and replace with a 105 degree low-ESR electrolytic of the same value, and equal (or higher) voltage.

    You're not going to be able to fit enough ceramic capacitors in the space available, and they probably don't have a very low ESR anyway.
    PIC programmer software, and PIC Tutorials at:
    http://www.winpicprog.co.uk

  5. #5
    sheldonstv Good sheldonstv Good sheldonstv Good
    Join Date
    Jul 2005
    Location
    warwickshire
    Posts
    202

    u will see the faulty electrolytic- it may have a split case or be leaking and there may be more than one to replace-as nigel said replacements need to be 105 degree hi temp types and be the correct voltage rating as well...........
    all "txt speak" has been removed from this post for the benefit of all other forum members who may get confused!!!

+ Reply to Thread

Similar Threads

  1. bypass sony amp switch
    By stevo1173 in forum Repairing Consumer Electronics
    Replies: 0
    Latest: 25th April 2009, 10:56 AM
  2. Video signal processing
    By jaimegmr in forum Electronic Projects Design/Ideas/Reviews
    Replies: 2
    Latest: 24th October 2008, 10:22 PM
  3. RGB video signal +Sync signal
    By m_ghaff in forum General Electronics Chat
    Replies: 1
    Latest: 14th May 2006, 07:18 AM
  4. Video Signal
    By narco in forum General Electronics Chat
    Replies: 2
    Latest: 23rd November 2004, 03:08 PM
  5. Sony CCD-V801 Video Camera
    By Dex in forum Datasheet/Parts Requests
    Replies: 0
    Latest: 31st December 2002, 06:22 PM

Tags for this Thread