You can do the caps now while everything is still working, or later after
wong voltages have been going to the device for a while. Which would you
prefer?
-J
----- Original Message -----
From: "Chris Riedl" <[EMAIL PROTECTED]>
To: "LisaList" <lisalist@mail.maclaunch.com>
Sent: Wednesday, November 02, 2005 4:31 AM
Subject: Re: Taking apart Lisa - cleaning
Actually, the Lisa appears to be just fine, other than the ghost
Widget. I am guessing that something failed in the past and the power
supply was repaired or replaced. I wouldn't expect that someone doing
that job would go through the trouble of taking the entire machine apart
to clean up the mess.
-Chris
----- Original Message -----
From: "Dr. Helmut Post" <[EMAIL PROTECTED]>
To: "LisaList" <lisalist@mail.maclaunch.com>
Sent: Wednesday, November 02, 2005 4:19 AM
Subject: Re: Taking apart Lisa - cleaning
Hi,
I have replaced all old electrolytic caps and the power surge caps in my
Lisa- no more problems- and the Voltages are more stable than ever
before.
I have even exchanged all electrolytic caps in the video circuit- the
picture is now much better- the slight jitter is gone.
I'd recommend everyone to exchange all electrolytic caps inside the PSU
and
the Video circuit- it makes a big difference and protects the Lisa for
the
future.
----- Original Message -----
From: "Chris Riedl" <[EMAIL PROTECTED]>
To: "LisaList" <lisalist@mail.maclaunch.com>
Sent: Wednesday, November 02, 2005 9:37 AM
Subject: Re: Taking apart Lisa - cleaning
Well, that was certainly an interesting escapade. Apparently a
power
supply cap blew up sometime in the past, and there was crusted
electrolyte
all over the one side. Some cleaning of the chassis and case later, I
have
got the Lisa booting up. However, it just appears as if the Widget is
not
present to the system, as it only shows the floppy for startup. The
Widget
spins up and sounds normal, but I guess it isn't being seen by the
hardware.
Any suggestions or things to try to pinpoint this further?
I'd recommend to turn the voice coil actuator manually during the
spin-up,
self test procedure of the Widget.
Sometimes it helps....
Helmut
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