On 28/12/05, Mark Benson <[EMAIL PROTECTED]> wrote: > > On 28 Dec 2005, at 07:19, Samual Acorn wrote: > > > the dead/grey pixel might be video memory problems... does it stay put > > when you change resolutions? (if you can change resolutions that > > is...) or connect the monitor to a different machine? > > I've seen CRTs lose pixels before. It's very rare, but it isn't > totally unknown, I think the phosphors burn out in one spot with age. > May originally have been a manufacturing flaw. > You can't change screen res. on a 12" RGB screen either they are > fixed frequency 512x384 screens. They are pretty numerous and
weird resolution..... largely > unwanted however so finding second hand units and the like shouldn't > be overly hard. I have to say I have one and it's also got the focus > disease. They are cheap and nasty units (at least by Apple > standards), it's a miracle really they lasted this long! Mine fell > out of service long ago in favour of bigger multi-sync CRTs. > > > if you rule out video memory problems it /might/ be possible to pick > > it up and tap the back of the monitor against the desk (gently!) to > > knock whatever is stuck against the phosphor loose... > > Logic would drive me to ask what exactly could be stuck to the > phosphor in a vacuum sealed tube? I suppose it's not outside the > bounds of possibility that a flake of lead might have pinged off the > tube and stuck there but no amount of banging on desks will shift > that, it'll likely be welded to the phosphor by now. You also risk > putting strain on the plastics that they are not designed to take, I ive knocked on cheap monitors before and got 'factory extras' unstuck.... since it was grey (instead of black) i doubt that it was completely stuck to the phosphor and might be just on the dot mask..... strange that one area would just go dead.... never seen that happen... unless there was a bright dot stuck there all the time i dont see how the phosphor could burn-in.... but stranger things have happened.... > know (properly like about 4 feet) dropping a heavy CRT on it's back > is usually death to the plastic casing. I used to have a 17" > Multiscan 720 display that had been dropped on it's back and the > casing was a total mess. It eventually died from an internal short > that got worse and worse. ive dropped 14inch VGAs from higher... had a bit of a convergence problem but that was fixable ;) i -did- say -gently- i dont mean to beat the crap out of it... also might be possible to get it to go away by knocking at it with ones knuckle.... > > -- > Mark Benson > > My Blog: > <http://mdblog.68kmac.org> > 68kMac.org: > <http://www.68kmac.org> > Visit my Homepage: <http://homepage.mac.com/markbenson> > > "Introducing Macintosh Classic II - pick one out on your way past the > trash!" i think i have one of those in storage.... wont boot but from what ive heard on this ML its cos of a bad pram battery.... doesnt seem worth the purchase of a torx driver to fix tho... *g* -- --sam http://mephitus.renamon.org/ "When you've done something right, no one will be sure you've done anything at all." -- Futurama -- -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:vintage.macs@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
