9 Aug
1998
9 Aug
'98
6:45 p.m.
On Fri, 7 Aug 1998, Wirehead Prime wrote:
I opened up my Lisa with the bad video (weird
horizontal sync problem)
Is the image on the screen wrapping off of the edges, or is it all within
a well-defined rectangle at the center of the screen? If it is the
former, then it does sound like a horizontal sync problem; however, if it
is the latter, then your Lisa has probably been fitted with the "screen
kit upgrade", which changes the screen resolution from the Lisa's standard
720 x 364 to 608 x 431 to better approximate the Macintosh pixel shape and
aspect ratio. The Office System doesn't recognize the "upgrade" and still
writes to video memory assuming that it is in the original format,
yielding a garbled screen.
If you can find a copy of MacWorks, try it out. If MacWorks runs, then
you will need to downgrade the upgrade (with original system ROMs, the
video state "ROM", and the removal of the transformer included in the
screen kit upgrade from the video circuit) to make this system run the
Office System.
Also, I have a Profile harddisk that alledgedly goes
with the unit.
Without documentation, I see no place that indicates a hard disk should
be connected there on the Lisa. But the Lisa has one parallel port and
an expansion board with two more parallel ports. Does it
connect to one of these? If so, what cable is appropriate? (No cable)
And to what should it be connected?
The corroded nicad pack you mentioned earlier is a "feature" of the 2/5.
On a 2/5, you should be able to plug a ProFile into the built-in parallel
port, without using an expansion slot/card at all. A straight-through
wired DB-25M - DB-25M cable (with pin 7 cut off on one end) should do the
trick.
--
Scott Ware ware(a)xtal.pharm.nwu.edu