Color Classic Mystic Mods

[jefframsey]

I finished my Mystic mod last night and installed my LC575 board into my CC. Went really well. I used a hobby knife to cut the traces, first scoring them with the blade and then turning it over to the dull side and scraping the copper trace away through the score marks.

 

 

So far it is very stable. It only has 32 MB RAM so I am going to want to max that out, but quite a fun machine with 040 CPU and VGA graphics! I cannot load 8.1 yet, as I have no bootable CDROM drive. I have an NEC SCSI CDROM, but it will not boot from this. I am going to try to copy the 8.1 CD contents to the HD and install from there.

 

 

[Byrd]

Nice one Jeff, it really makes the CC a much more versatile machine.  I've had a CC modded like this for 10+ years and it hasn't missed a beat.

 

[jefframsey]

Update on the Mystic mod. I printed the Mystic backplate that I found on this forum post:





It fits perfect and looks pretty great! Thanks 360alaska!

 

 

[PB145B]

That screen looks incredible in 640 x 480! Nice work! That mod actually looks pretty easy too. 

 

[rickrob]

Looks great-- I've been thinking about doing this mod to my Mystic.  I'll probably recap the Analog Board while I'm at it.

How readable is the screen at that resolution?

Have you thought about overclocking the CPU? There's a mod for that as well-- Mine runs at 36 MHz.

 

[jefframsey]

Looks great-- I've been thinking about doing this mod to my Mystic.  I'll probably recap the Analog Board while I'm at it.

How readable is the screen at that resolution?

Have you thought about overclocking the CPU? There's a mod for that as well-- Mine runs at 36 MHz.

Thanks. The screen is perfectly readable. A bit small, but nothing that I have to strain to see.

I did not know about the overclocking mod? Any sources for that?

 

[rickrob]

Thanks. The screen is perfectly readable. A bit small, but nothing that I have to strain to see.

I did not know about the overclocking mod? Any sources for that?

I used this one:

https://web.archive.org/web/20030225181154/http://gabezing.sytes.net:80/lc575-40mhz-e.html

 

[Trash80toHP_Mini]

Very nice work.

 

[Bolle]

That’s what I did on my Mystic as well and it’s been running fine ever since.

I used this one:

 

https://web.archive.org/web/20030225181154/http://gabezing.sytes.net:80/lc575-40mhz-e.html

 

[rickrob]

I settled on 36Mhz, as I started getting video artifacts at higher speeds.  If you can find 70nS VRAM, you can go to higher speeds.

 

[PB145B]

I used this one:

https://web.archive.org/web/20030225181154/http://gabezing.sytes.net:80/lc575-40mhz-e.html

Damn, that is just too cool! All this makes me want to get a CC even more!

 

[just.in.time]

I cannot load 8.1 yet, as I have no bootable CDROM drive. I have an NEC SCSI CDROM, but it will not boot from this. I am going to try to copy the 8.1 CD contents to the HD and install from there.

Not sure if you have tried yet, but you might be able to use a modified disk tools disk. Just ditch the Apple first aid and drive setup applications, toss in the extension for your CD drive, then boot from the disk tools disk and run the 8.1 install from the CD.

 

[jefframsey]

Not sure if you have tried yet, but you might be able to use a modified disk tools disk. Just ditch the Apple first aid and drive setup applications, toss in the extension for your CD drive, then boot from the disk tools disk and run the 8.1 install from the CD.

I was able to load 8.0 via floppy and then update to 8.1 via LocalTalk transfer of the image. It's a really fun, stable computer now!

 

[just.in.time]

I was able to load 8.0 via floppy and then update to 8.1 via LocalTalk transfer of the image. It's a really fun, stable computer now!

Very cool  Good work!