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Author Topic: CRT Monitor Broken?  (Read 1323 times)

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computer 12

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    CRT Monitor Broken?
    « on: August 15, 2019, 02:25:18 AM »
    Hi guys, its been a while, but im back,
    So ive recently been trying to use my CRT monitor again, and ive been attempting to fix the fact that at its native resolution the monitor(CRT Technology) its been displaying a dark barely seeable image that is vertically stretched and horizontally squeezed and the image is real dark, I can see the desktop of XP, not the taskbar or the top cuz its stretched, but the wird thing is that it works with 600x480 like a normal CRT, but that was not its native resolution, it worked fine with my old Windows 2000 PC which is out of commission. The monitor is some Proview one probably from the 2000, I cant see a model number nor I can find a website to see the model.
    Yes I have tried to Google it but to no avail, any help is greatly appreciated.
    If there are any more doubts plz ask,
    Edit: Model is 570M from 1999
    « Last Edit: August 15, 2019, 02:45:26 AM by computer 12 »

    computer 12

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      Re: CRT Monitor Broken?
      « Reply #1 on: August 15, 2019, 10:56:19 AM »
      Here are some pictures, the higher the resolution the dimmer and more stretched the image gets.

      patio

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      Re: CRT Monitor Broken?
      « Reply #2 on: August 15, 2019, 03:46:14 PM »
      Sometimes it's just best to cut the cord on old equipment...
      It's not like we could advise on fixing it without you gettin elotrocruted...


      Think about it.
      " Anyone who goes to a psychiatrist should have his head examined. "

      xyz378537



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        Re: CRT Monitor Broken?
        « Reply #3 on: August 16, 2019, 05:55:25 AM »
        I worked on some CRT monitors. Have checked the dials first? There should be dials for brightness, contrast, horizontal and vertical size, and position, check them first, before continuing.
        The next part is really unsafe, if you don't know what you're doing, stop!!
        Before opening a CRT, be sure to wait for some time after turning it off(at least a day).
        You can try to check the caps on the board of the monitor. Especially the ones used to generate the deflection signals. You can also check the heater voltage.

        computer 12

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          Re: CRT Monitor Broken?
          « Reply #4 on: August 16, 2019, 06:21:12 AM »
          Well, I am confident I will be able to attempt to fix it without getting electrocuted, as I have time to wait, I don't want to give up on this good old monitor that has served me so well.
          I just want to know if someone has had a similar issue and whether it could be software related, such as drivers or something.
          Thanks

          xyz378537



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            Re: CRT Monitor Broken?
            « Reply #5 on: August 16, 2019, 10:53:55 AM »
            I've never had simmilar issue with any of the CRTs in my collection. Could you please post a photo showing the issue?

            computer 12

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              Re: CRT Monitor Broken?
              « Reply #6 on: August 16, 2019, 11:32:42 AM »
              Pretty sure its wise to wait a tad bit more than a day, my pics are awaiting approval.
              but yeah i already planned to do a visual inspection on the circuit board, and hopefully i can find a service manual for it, yeah i cheked the dials, no luck.

              xyz378537



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                Re: CRT Monitor Broken?
                « Reply #7 on: August 16, 2019, 02:57:41 PM »
                All right. If your monitor was made sometime around the year 2000, it might be dead because of the capacitor plague. I've had multiple motherboards from that time period die on me, all because of electrolytic capacitors. You should check for capacitors boulging from the top as well as the bottom.  Before doing anything with the insides of the CRT, you should also discharge the anode by putting a screwdriver attached to the chassis ground under the anode cap, just in case  ;) In my opinion, it's great that you try to keep this monitor running for as long as possible.

                patio

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                Re: CRT Monitor Broken?
                « Reply #8 on: August 16, 2019, 05:44:13 PM »
                There's your possible electrocution instructions right there....
                " Anyone who goes to a psychiatrist should have his head examined. "

                DaveLembke



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                Re: CRT Monitor Broken?
                « Reply #9 on: August 16, 2019, 07:27:32 PM »
                Quote
                There's your possible electrocution instructions right there....
                :o ;D

                computer 12

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                  Re: CRT Monitor Broken?
                  « Reply #10 on: August 17, 2019, 02:01:23 AM »
                  Alright then, thanks for the info, ill check out the circuit board then, ill have to wait over a day. Ill keep you updated

                  Lisa_maree



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                  Re: CRT Monitor Broken?
                  « Reply #11 on: August 28, 2019, 07:08:48 PM »
                  Hi

                  Have you tried setting the refresh rate for 1024*768 to 60 Hz it is supposed to be  standard refresh rate but some video cards output at a higher refresh rate.

                  xyz378537



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                    Re: CRT Monitor Broken?
                    « Reply #12 on: August 30, 2019, 12:44:57 PM »
                    Did you manage to fix it?

                    computer 12

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                      Re: CRT Monitor Broken?
                      « Reply #13 on: September 05, 2019, 09:31:24 AM »
                      No, I took a look inside but I could not really find anything wrong, it looks like it is failing to deliver power at higher resolutions.
                      Looks like this may be a lost cause, '*censored*, I cant even find a service manual for the *censored* thing, I find one for a flatscreen which this sure as *censored* isn't.