Next message: hharken: "[WinMac] Win 2000/NT OEM ?"
> From: Tom Roth <tomroth@wfubmc.edu>
> Subject: Re: [WinMac] Problem with monitor adapter
> Date: Wed, 08 Mar 2000 16:32:21 -0500
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> References: <200003082042.MAA11234@lists1.best.com>
>
> > "Christopher Giles, Sys. Mgr." wrote:
> >
> > The computer is a Performa 631CD which is in good working condition. I
> > used to have it connected to a small Mac monitor. However, for a while,
> > I needed to move it, so I got one of those Interex PC monitor adapters
> > so it could use an old PC monitor.
> >
> > Now I want to put it back on the Mac monitor, but it won't work. After
> > removing the adapter and connecting it to the same Mac monitor it had
> > used before, the signal is completely scrambled.
> >
> > The monitor works fine with a different Mac, and the Performa still
> > works fine with the adapter and PC monitor. It will not work, however,
> > when I connect it to the Mac monitor.
> >
> > I have tried zapping PRAM, but I have not taken the Performa apart yet.
> > This is one of those older Macs, where all the guts are hidden inside a
> > pretty solid metal case.
>
> Zapping the PRAM was a good idea. While the PC monitor is still
> attached try setting the screen to rez to 640x480 at the lowest refresh
> rate possible. Then shut down completely and swap monitors. If that
> doesn't do it you might even try disconnecting the power cord and
> pulling out the battery on the motherboard. Wait a few minutes and put
> it all back together. Sounds like something on the Performa is
> remembering the settings for the PC monitor.
>
>
> To throw in my 2 cents I have had that exact same thing happen to an older mac I worked on (sorry I can't remember what make).
My solution was (and don't laugh) hook up an OLD apple monitor (that wan't multi-scan) like the old 13"type. It was the refresh rate that the computer 'remembered' so when I hooked the old monitor up, it could only use one setting and it automatically reset to this. Now this was sometime ago (probably os 7.6.1 or so) but it might work if you have an old monitor (non-multiscan) around. Also were you networked? Could you login remotely and just change the refresh rates until you got one that worked with the apple monitor (75hz maybe)? Or boot off a cd or diskette that had a standard os which should be the correct refresh rate for an apple monitor and
therefore correct the settings? I just don't think it sounds like hardware.....Lu
Lu Kondor
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: Thu Mar 09 2000 - 14:30:43 PST