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AppleCD SC M2850 disassembly
Posted by: Cicero on 2019-09-28 09:58:02
I trying to find some tips on disassembling an M2850 external CD drive.  I've searched Google with no luck.  There are no screws on the bottom.  I THINK there are some tabs on the side that may be keeping the top on.  But I haven't had any luck opening the case so far.  Any suggestions or instructions would be most welcome.  I'm trying to get inside to clean it and see if there are any other needed repairs.

Posted by: archer174 on 2019-09-28 10:40:18
There are tabs along the sides that need to be pressed in. 

Posted by: Scott Baret on 2019-09-28 22:11:07
The tabs are along the grooves on the sides. You'll want to use a small screwdriver. To avoid leaving scratch marks, wrap the blade in electrical tape.

Apple's ZFP SCSI hard drives (i.e. 20SC) use the same disassembly procedure.

Posted by: Cicero on 2019-09-29 11:28:06
Thanks.  Got it open.  Now troubleshooting the drive while the case retrobrites.

Posted by: pcamen on 2019-09-29 19:33:04
I’m curious to hear your troubleshooting steps and what you are able to accomplish.  I’ve got two dead ones.

Posted by: Cicero on 2019-09-30 18:44:09
And it lives!  I guess I got lucky.  This one apparently only needed a good lens cleaning.  I bought it "for parts only" on eBay recently.  It would always eject the caddy after a few seconds.  I'm glad I didn't have to do much troubleshooting.  This model really is not fun to tear down and reassemble.

I'm happy with the retrobrite result too.  The SE/30 itself is lighter than it should be.  I had to aggressively immerse the SE/30 case after a marbling disaster with the cream/plastic wrap method.  It got rid of the marbling, but the case is not too white.  The AppleCD case is an appropriate platinum matching the keyboard and mouse.

Now I need to find a good deal on some Apple Design Powered Speakers.

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