While we're talking about Lisas

From: Louis Schulman <louiss_at_gate.net>
Date: Fri Jul 14 18:22:54 2000

This definitely sounds like a video card problem. Most
often, the adjusting pots at the top of the card become
oxidized, and provide intermittent or no performance.

Thus, you might try the standard procedure of applying some
tuner/channel selector cleaner, and twisting the pots back
and forth, remembering their original position. Some
adjustment will likely be necessary.

Of course, I could be wrong. But it is worth a try.

Louis

On Fri, 14 Jul 2000 14:34:24 +0100, Adrian Graham wrote:

>My Lisa 2 (vanilla one, 1.2A PSU) has developed a habit of turning the
>screen off while she's running. In fact it's now permanently off which is
>annoying to say the least. Some of you may have experienced this before so
>here are the symptoms;
>
>System working fine (at the time running MacWorks 1.0), screen goes dim as
>per screensaver then blinks off like I'd hit the power button. It eventually
>comes back on after leaving it powered down for a couple of hours. James at
>Sigma Seven Systems said he thought he remembered there was a serial port
>bug in MW1.0 that caused the screen to go off sometimes so I left it at
>that.
>I've now got myself a ProFile so I was intending on installing LisaOS 3.1,
>but when she was powered up for the first time since maybe mid-may the
>screen came on briefly then blinked off again as it did before; since then
>it's only come back on once for around 10 minutes.
>While all this is going on the machine keeps running normally. If I power up
>I hear the self test passing, if I've got the first OS disk in (or MacWorks
>boot disk) it will actually boot, if I've got a standard composite monitor
>connected I can see things happening so I know the machine itself is
>fine.......
>
>Anyone else seen this? I've got another video card and screen coming over
>but it won't be here till the end of august; to say I'm champing at the bit
>would be an understatement :)
>
>cheers!
>
Received on Fri Jul 14 2000 - 18:22:54 BST