Mac Classic II - Analog board Schematics - Help Please

[Rjp663]

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

 

[techknight]

Only ones that are available are the BOMARC versions. 

 

[Rjp663]

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

 

[Alex]

Here are bunch of schematics, none of them unique. BOMARC included. https://drive.google.com/drive/folders/1VnDnfgf92viDq2Tl_wLvxx8I7tTjl89K?usp=sharing

 

[Rjp663]

Thank you Alex!

 

[360alaska]

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.

 

[Alex]

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.

 

[Rjp663]

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

 

[MrFahrenheit]

Isn’t the analog board for a Classic II identical to the one in a Classic ?

 

[Rjp663]

Yes it is.

 

[karrots]

My CI and CII were slightly different. 

 

[Rjp663]

I stand corrected.

 

[360alaska]

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.

 

[karrots]

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#