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| Mac Classic II - Analog board Schematics - Help Please |
Posted by: Rjp663 on 2020-09-16 18:45:14
Hello everyone,
I'm new to the Classic Mac refurbishment game. I'm in need of schematics for the analog sweep board p/n 630-0525. It's the US 110V version. Any help would be much appreciated!
Rick
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Posted by: techknight on 2020-09-16 21:13:41
Only ones that are available are the BOMARC versions.
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Posted by: Rjp663 on 2020-09-16 21:18:25
Thank you! The analog schematic is included as part of the Mac Classic file. I hadn't looked there since I have the Classic II.
View attachment Macintosh_Classic_Schematic_(bomarc).pdf
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Posted by: Alex on 2020-09-16 23:35:28
Here are bunch of schematics, none of them unique. BOMARC included. https://drive.google.com/drive/folders/1VnDnfgf92viDq2Tl_wLvxx8I7tTjl89K?usp=sharing
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Posted by: Rjp663 on 2020-09-16 23:42:51
Thank you Alex!
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Posted by: 360alaska on 2020-09-17 01:38:29
I didn't see the analog board in that link so here it is:
https://drive.google.com/drive/folders/0B_Xp3uN-BcxsQjFLRUZqeEw2VFE
Look in the other copies folder.
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Posted by: Alex on 2020-09-17 01:57:40
Good grief! One never knows the gems that come out of these conversations. Thank you 360alaska! Downloading your share and I will add those missing schematics to my share incase.
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Posted by: Rjp663 on 2020-09-18 18:57:06
All,
Since this was the first time I worked on the analog sweep board, I put together a recapping map. Hope this helps someone else!
Rick
View attachment ANALOG_PCB_630-0525.pdf
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Posted by: MrFahrenheit on 2020-09-19 03:30:27
Isn’t the analog board for a Classic II identical to the one in a Classic ?
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Posted by: Rjp663 on 2020-09-19 05:06:23
Yes it is.
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Posted by: karrots on 2020-09-19 07:50:15
My CI and CII were slightly different.
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Posted by: Rjp663 on 2020-09-19 08:20:45
I stand corrected.
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Posted by: 360alaska on 2020-09-19 10:16:12
My CI and CII were slightly different.
I stand corrected.
There is an early and later/ low rfi version. Out of all of my machines I've only encountered 1 or 2 of the older type.
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Posted by: karrots on 2020-09-19 12:18:01
Mine were the following model numbers. Both were made in Singapore.
Classic II (Oct 1991) 630-0525
Classic (Nov 1991) 860-0395
For the most part the caps were the same. I ordered double of what was in my CII but when I went to do the Classic I found I was missing 2 caps that were different. So they are pretty close.
Parts list I used.
https://docs.google.com/spreadsheets/d/e/2PACX-1vSV2LyGPEhFxpr9oA6FZ2DG7m42-P6yyeyOlBUpjrZJ2qcMCRyWYQzCNh56eypgUVyW4OP-M_NmQE2-/pubhtml#
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