+ Post New Thread
Results 1 to 12 of 12
  1. #1
    Full Member level 3
    Points: 2,181, Level: 10

    Join Date
    Apr 2005
    Posts
    168
    Helped
    2 / 2
    Points
    2,181
    Level
    10

    monitor goes red

    My monitor goes RED???

    Whenever I start my computer, it loads normally..but my monitor

    goes red but i can see the Deskop. Its like looking to Desktop through

    RED filterglass. After 10min, RED colour is lost and monitor behaves

    normally. What happened to my monitors,guys? I know its hardware problem

    in my monitor. Tell me to what that problem is related to and how can i

    mend it.

    thank you

    •   Alt15th April 2006, 14:26

      advertising

        
       

  2. #2
    Full Member level 1
    Points: 2,264, Level: 11
    tamerakshar's Avatar
    Join Date
    Jan 2006
    Posts
    97
    Helped
    12 / 12
    Points
    2,264
    Level
    11

    monitor goes red

    hi,
    did u check the cable.
    sometimes a wire loose can cause this.
    TeE ThE EdE



  3. #3
    Full Member level 4
    Points: 3,366, Level: 13

    Join Date
    Nov 2001
    Posts
    239
    Helped
    14 / 14
    Points
    3,366
    Level
    13

    montor goes red

    Sounds to me that the red rive circuitry or the tube could be faulty. Be carfull if you decide to look at it yourself as there is a very high voltage generated at the final anode of the tube.

    Barrybear



  4. #4
    Advanced Member level 3
    Points: 9,111, Level: 22
    pisoiu's Avatar
    Join Date
    Dec 2002
    Location
    Romania
    Posts
    735
    Helped
    40 / 40
    Points
    9,111
    Level
    22

    computer monitor going red

    Go inside the monitor but be carefull at high voltages. In the most of the cases, you have a faulty contact on the video board or in the CRT connector, resolder the components. However, in very rare cases I've encountered situations when the heater made intermitent contact with the cathode. Check with an ohmmeter between the heater and the red cathode (with the video board removed and cold CRT). In this case you can try to discharge a capacitor between the shorted terminals of the heater and the cathode. It will either remove the fault, or it will completely destroy the heater, this is some sort of a last sollution. Don't blame me if you have to throw away your CRT after this operation (if it is the case, of course).

    /pisoiu



  5. #5
    Member level 3
    Points: 1,533, Level: 8

    Join Date
    Jan 2006
    Posts
    54
    Helped
    0 / 0
    Points
    1,533
    Level
    8

    my monitor is lost red color how to fix

    butts 101,
    Guess u have some loose contact around the video section. re-sol;der whatever u find loose.

    luck,
    ras



    •   Alt17th April 2006, 02:20

      advertising

        
       

  6. #6
    Full Member level 3
    Points: 2,181, Level: 10

    Join Date
    Apr 2005
    Posts
    168
    Helped
    2 / 2
    Points
    2,181
    Level
    10

    monitor going red

    hello there...
    i don't have to be too careful with high voltage since i'll be dissecting the monitor after unplugging the power or do i?

    And where is the most probable place that wire would be loose??

    thank you



  7. #7
    Full Member level 6
    Points: 11,469, Level: 25
    sawwa7's Avatar
    Join Date
    Oct 2004
    Posts
    331
    Helped
    62 / 62
    Points
    11,469
    Level
    25

    tyris monitor going red

    hi
    what's ur monitor's brand,model and chassis number?
    regards



  8. #8
    Full Member level 3
    Points: 2,181, Level: 10

    Join Date
    Apr 2005
    Posts
    168
    Helped
    2 / 2
    Points
    2,181
    Level
    10

    monitor goes red what is the cause

    my monitor is daewoo 532x

    thank you



  9. #9
    Advanced Member level 3
    Points: 8,498, Level: 22
    cyberrat's Avatar
    Join Date
    Jun 2001
    Location
    In the sewers of the U.K.
    Posts
    849
    Helped
    77 / 77
    Points
    8,498
    Level
    22

    my computer screen goes red

    There are still high voltages inside the monitor after switching off, you have to wait till the capacitors discharge.

    Wait approx 10 mins and all should be fine.

    Try looking around the back of the tube, at the board there, where the video cable comes in through upto the board and all connections around it.

    Check also for other loose connections throughout the monitor.

    Does the usual method of temporary repair work? (bang it on the side - lol).



  10. #10
    Full Member level 5
    Points: 5,563, Level: 17

    Join Date
    May 2002
    Location
    from istanbul in TURKEY
    Posts
    289
    Helped
    11 / 11
    Points
    5,563
    Level
    17

    my computer goes red

    look at capacitor of the video amplifier IC power suply



  11. #11
    Full Member level 3
    Points: 2,181, Level: 10

    Join Date
    Apr 2005
    Posts
    168
    Helped
    2 / 2
    Points
    2,181
    Level
    10

    monior goes red

    My monitor is
    Daewoo 532X
    S.No. Gc07370258
    Chasis No 531X

    No success...
    I opened my monitor. I didn't see any loose connection that i needed to

    solder. There are many resistors, capacitors and diodes...is there any

    chance anyone of those being burn out? I just cleaned surfaces of CRT

    (black coloured dust) , blow the dust from the surface of devices.



    When i re-assemble and booted my computer...same problem...RED Monitor

    and after sometimes no more red coloured..monitor behaves normally.


    There is a big capacitor "C0824 220uF 400V" (is this a video amplifier

    power suppy IC) Is that problem related to that?

    Bang in the side of monitor doesn't work..but monitor flickers when doing

    that.



    thank you



  12. #12
    Newbie level 3
    Points: 1,335, Level: 8

    Join Date
    Apr 2006
    Location
    South Africa
    Posts
    3
    Helped
    2 / 2
    Points
    1,335
    Level
    8

    monitor circuit diagram model 532x

    I have attached the electronic schematic diagram for this monitor:

    Daewoo 432X_523X.pdf

    Sheet 1: Power & Connection Section
    Sheet 2: Control & Vert.Out Section
    Sheet 3: Horizontal Section
    Sheet 4: Video Section

    This will enable you to trouble-shoot your monitor and resolve the problem with help from these fine poeple.

    Best Regards,
    Bernard



+ Post New Thread
Please login