21 Nov
2001
21 Nov
'01
5:53 a.m.
At 09:56 AM 11/21/01 -0600, you wrote:
Apple published a series of manuals entitled "Inside Macintosh," volumes
3 and 4 of which I found in a thrift shop recently. They are for the
"goldfish-bowl"
MACs (copyright dates are 1985) and are primarily geared toward programmers,
but there are some hardware diagrams and pin-outs (nothing that Tony couldn't
figure out in less than 30 seconds, though...)
Cheers,
Dan
-----Original
Message-----
From: Rich Beaudry [mailto:r_beaudry@hotmail.com]
Same for hardcopy manuals. I have some .PDFs,
but they're so
clumsy ... If
anyone has spare copies of manuals for this machine,
especially any tech
references or service manuals, I'll gladly pay postage, and
some extra, for
them....
I assume they exist somewhere, but the closest thing I've ever seen to a
tech reference or service manual for any macintosh was the Chilton's book on
macintosh repair. 
21 Nov
21 Nov
9:32 a.m.
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1:18 p.m.
On Wed, 21 Nov 2001, Tony Duell wrote:
YEs, they're pretty minimal on the hardware side.
Apparently you weren't
supposed to hack the hardware if you bought a Mac. Never stopped me....
I have a non working 128k unit I'd sure like to get around to fixing...It
actually worked before I located a keyboard and mouse for it, I think I
used the wrong type of keyboard cable. When I powered it up with the
keyboard, heard a snap, and it didn't work anymore :/
-Toth
1:28 p.m.
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22 Nov
22 Nov
12:30 a.m.
On Thu, 22 Nov 2001, Tony Duell wrote:
I think the fuse was ok. I think I can get to this machine, and may pull
it out tonight. I'll check the chopper and related components.
-Toth
I have a non working 128k unit I'd sure like
to get around to fixing...It
actually worked before I located a keyboard and mouse for it, I think I
used the wrong type of keyboard cable. When I powered it up with the
keyboard, heard a snap, and it didn't work anymore :/
The keybaord port carries +5V, data (TTL level), clock (TTL level),
ground, in that order.
If the keyboard cable was made to swap the pins end-for-end (which some
cables do), it would swap over +5V and ground at the keyboard. The
keyboard won't like this!, and it may also have damaged the PSU inside
the Mac. My guess is that the logic board in the machine is still OK.
I would check the PSU outputs inside the Mac. And investigate the PSU. Is
the fuse still good? What about the chopper transistor. And so on.
2:17 a.m.
On Thu, 22 Nov 2001, Tothwolf wrote:
I think the fuse was ok. I think I can get to this
machine, and may pull
it out tonight. I'll check the chopper and related components.
Well, I don't know where that machine is burried...Found a non-functional
1MB unit tho. It powers up, but it displays vertical bars of corrupted
characters. Yet another project I guess :P
-Toth
9:31 a.m.
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11:48 a.m.
On Thu, 22 Nov 2001, Tothwolf wrote:
On Thu, 22 Nov 2001, Tothwolf wrote:
I have an LC with a display rather like that caused by a missing Video
RAM 72-pin SIMM.
- don
I think the fuse was ok. I think I can get to
this machine, and may pull
it out tonight. I'll check the chopper and related components.
Well, I don't know where that machine is burried...Found a non-functional
1MB unit tho. It powers up, but it displays vertical bars of corrupted
characters. Yet another project I guess :P
-Toth
21 Nov
21 Nov
1:59 p.m.
On Wed, 21 Nov 2001, Tothwolf wrote:
On Wed, 21 Nov 2001, Tony Duell wrote:
Did you check the fuse inside the PSU?
- don
YEs, they're pretty minimal on the hardware
side. Apparently you weren't
supposed to hack the hardware if you bought a Mac. Never stopped me....
I have a non working 128k unit I'd sure like to get around to fixing...It
actually worked before I located a keyboard and mouse for it, I think I
used the wrong type of keyboard cable. When I powered it up with the
keyboard, heard a snap, and it didn't work anymore :/
-Toth
8280
days inactive
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days old
10 comments
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participants (5)
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ard＠p850ug1.demon.co.uk -
dan＠ekoan.com -
donm＠cts.com -
optimus＠canit.se -
tothwolf＠concentric.net