Guest DaffyD® Posted January 30, 2008 Posted January 30, 2008 Per Glen Ventura's suggestion, I'm posting this issue here. We have an old Cybervision 19-inch monitor. The problem we have is that on a recurring basis (it started closed to a year ago) the display is compressed into a horizontal line with the rest of the screen black. My son found out that if we tap the top of the monitor, that fixes the problem. Would anyone know what part(s) inside the monitor could be causing this? -- { : [|]=( DaffyD® If I knew where I was I'd be there now.
Guest legg Posted January 30, 2008 Posted January 30, 2008 Re: For Franc Zabkar: Recurring Monitor Problem On Tue, 29 Jan 2008 20:08:03 -0800, "DaffyD®" <daffyd@woohoo.com> wrote: >Per Glen Ventura's suggestion, I'm posting this issue here. > >We have an old Cybervision 19-inch monitor. The problem we have is that on >a recurring basis (it started closed to a year ago) the display is >compressed into a horizontal line with the rest of the screen black. My son >found out that if we tap the top of the monitor, that fixes the problem. >Would anyone know what part(s) inside the monitor could be causing this? Loose/dirty contact or broken connector pin in crt base harnessing and connectors. RL
Guest Franc Zabkar Posted January 30, 2008 Posted January 30, 2008 Re: For Franc Zabkar: Recurring Monitor Problem On Tue, 29 Jan 2008 20:08:03 -0800, "DaffyD®" <daffyd@woohoo.com> put finger to keyboard and composed: >Per Glen Ventura's suggestion, I'm posting this issue here. > >We have an old Cybervision 19-inch monitor. The problem we have is that on >a recurring basis (it started closed to a year ago) the display is >compressed into a horizontal line with the rest of the screen black. My son >found out that if we tap the top of the monitor, that fixes the problem. >Would anyone know what part(s) inside the monitor could be causing this? The problem is called "vertical collapse". It sounds like you have a dry/cold solder joint in the vertical deflection circuit. It should be an easy fix if you're handy with a soldering iron. Just follow the 4-wire cable from the deflection yoke on the picture tube back to the circuit board. Two of those wires (usually the thinner ones) will go to the vertical output IC (usually on a heatsink). Resolder any suspect components in that area. A tap test with an insulated screwdriver handle, or a blast of spray freeze, may help identify the culprit. Also change any bulging caps. IMO the best forum for this type of question is sci.electronics.repair. This is their FAQ: http://www.repairfaq.org/REPAIR/ This is your problem (Single Horizontal Line): http://www.repairfaq.org/samnew/tvfaq/tvsinghli.htm http://www.repairfaq.org/sam/monfaq.htm#monsinghor - Franc Zabkar -- Please remove one 'i' from my address when replying by email.
Guest Curt Christianson Posted February 4, 2008 Posted February 4, 2008 Re: For Franc Zabkar: Recurring Monitor Problem Ditto exactly what Franc suggests. You've lost your "Vertical Output".. If tapping the monitor can restore the display, the problem is probably not very serious. Franc's troubleshooting advice/procedure is excellent, and right on the money. Good luck. -- HTH, Curt http://dundats.mvps.org/ http://www.aumha.org/ "Franc Zabkar" <fzabkar@iinternode.on.net> wrote in message news:70g1q39n6vlkqgcuitu3d82e90vlpokbfi@4ax.com... > On Tue, 29 Jan 2008 20:08:03 -0800, "DaffyD®" <daffyd@woohoo.com> put > finger to keyboard and composed: > >>Per Glen Ventura's suggestion, I'm posting this issue here. >> >>We have an old Cybervision 19-inch monitor. The problem we have is that >>on >>a recurring basis (it started closed to a year ago) the display is >>compressed into a horizontal line with the rest of the screen black. My >>son >>found out that if we tap the top of the monitor, that fixes the problem. >>Would anyone know what part(s) inside the monitor could be causing this? > > The problem is called "vertical collapse". It sounds like you have a > dry/cold solder joint in the vertical deflection circuit. It should be > an easy fix if you're handy with a soldering iron. Just follow the > 4-wire cable from the deflection yoke on the picture tube back to the > circuit board. Two of those wires (usually the thinner ones) will go > to the vertical output IC (usually on a heatsink). Resolder any > suspect components in that area. A tap test with an insulated > screwdriver handle, or a blast of spray freeze, may help identify the > culprit. Also change any bulging caps. > > IMO the best forum for this type of question is > sci.electronics.repair. This is their FAQ: > > http://www.repairfaq.org/REPAIR/ > > This is your problem (Single Horizontal Line): > http://www.repairfaq.org/samnew/tvfaq/tvsinghli.htm > http://www.repairfaq.org/sam/monfaq.htm#monsinghor > > - Franc Zabkar > -- > Please remove one 'i' from my address when replying by email.
Guest buffalo rider Posted February 12, 2008 Posted February 12, 2008 RE: For Franc Zabkar: Recurring Monitor Problem I replied to your same note in the Windows 98 Display section ... please read it. One must be careful when opening monitors to avoid electrocution. - BR - "DaffyD®" wrote: > Per Glen Ventura's suggestion, I'm posting this issue here. > > We have an old Cybervision 19-inch monitor. The problem we have is that on > a recurring basis (it started closed to a year ago) the display is > compressed into a horizontal line with the rest of the screen black. My son > found out that if we tap the top of the monitor, that fixes the problem. > Would anyone know what part(s) inside the monitor could be causing this? > -- > { : [|]=( DaffyD® > > If I knew where I was I'd be there now. > > >
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