68kMLA Classic Interface

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My Color Classic Mystic Journey
Posted by: Tim S on 2018-08-28 07:29:20
I've spent a good part of the last year of weekends restoring my Color Classic Mystic.  I am calling it done for now and all is working except for the stereo mod which works but I am not yet getting full volume from the added 2nd speaker.

When I acquired the machine someone had already installed the LC575 board but it wasn't working and wouldn't boot.  This was my first Mac and I had to learn a lot along the way.  Much credit to all here @ 68kmla!  

The following is a list of what has been done.  This is not meant as a brag but a celebration since I put so much time into this.  It was a labor of love since I could never afford a Macintosh back in the day.

  • LC575 motherboard cleaned and re-capped with all new smd capacitors.
  • Full 68040@33mhz CPU installed with heatsink.
  • 128 mb simm installed so that total mem is now 132mb.
  • Analog board recapped completely with 105c Nichicon high-quality capacitors with all caps the same size and diameter as originals.  Picture is now bright and vibrant.
  • VGA mod done to analog board.  I was going to do the "right-way" mod but read that some were having pincushion adjustment/size issues so I went with the VGA mod since I replaced all caps.  Picture adjusts nearly perfect.
  • Stereo mod done to analog board.  Works but I have some volume issues on the additional speaker that I need to fix.
  • Hard disk replace with SD2SCSI with a  SD 32gb sd-card partitioned into a <4gb boot HFS partion (for boot reasons - had to learn this!), 4gb HFS Utilities partion , 2ea.  8gb HFS+ partitions and whatever was left as an additional HFS+ partition.  
  • Stock case fan clean and lubricated - nice and quite and original.
  • Motherboard battery replaced with replaceable AA battery pack mounted in a remote location.
  • Floppy drive disassembled, cleaned and lubricated.case was completely stripped down.
  • Everything cleaned and plastics lightly retro-brighted.
  • External CD-ROM and external HD added.
  • Running OS8.1,  
  • probably alot of other stuff that I forgot. 🙂
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Posted by: olePigeon on 2018-08-28 08:11:35
Excellent work.  I love that custom badge. 😀

Posted by: jefframsey on 2018-08-28 08:12:32
This is very cool! I love the customized badge! I need to do all of this to my CC.
Posted by: tanaquil on 2018-08-28 09:30:54
Looks beautiful! How did you do the custom badge?
Posted by: techknight on 2018-08-28 16:30:50
That... is NICE. Lemme tell ya. 
Posted by: superjer2000 on 2018-08-28 19:38:33
Would you mind sharing your list of replacement analog board caps?  (i.e. From Mouser or Digikey?)  I haven't found a good list of caps yet, esp. one where sizes were matched up.
Posted by: superjer2000 on 2018-09-09 14:07:44
Would you mind sharing your list of replacement analog board caps?  (i.e. From Mouser or Digikey?)  I haven't found a good list of caps yet, esp. one where sizes were matched up.
@Tim S

Bump for list of analog board caps.
Posted by: Tim S on 2018-09-11 13:49:46
I will try to locate my list of caps that I made.  

I might decide to put together a kit to put on Ebay.  
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