Mac Classic II: Difference between revisions
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*[https://www.youtube.com/watch?v=mEBjVW9TG2E Video replacing original capacitors with most solid replacements] | *[https://www.youtube.com/watch?v=mEBjVW9TG2E Video replacing original capacitors with most solid replacements] | ||
*[https://everymac.com/systems/apple/mac_classic/specs/mac_classic_ii.html Apple Macintosh Classic II Specs] | |||
==References== | ==References== | ||
Revision as of 22:17, 6 April 2022
- For more information, see this article's corresponding Wikipedia page: Macintosh Classic II.
| This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables | 
|
| Preliminary Information | |
|---|---|
| Release Year | 1991 |
| Leak Risk | High |
| Batteries | Removable |
| Mounting Technology | Through Hole, SMD, Sockets |
| Capacitor Types | Aluminum Electrolytic |
| Destructive Entry | No |
| CRT Guides | |
| General Information · Repair Cautions | |
The Apple Mac Classic II was towards the end of the line for the Compact Macs.
Known Issues
Vertical bars on power on
Cause
- Leaking capacitors on logic board
-
Visible leakage around the base of C4 which had previously been cleaned and continued to leak
Solution
- Recap logic board
Disassembly Notes
The screws that are used to hold the case together are Torx T15. You will need a driver with a long shaft (about 6" - 150mm) to reach the two screws under the handle. These can be found on Amazon, eBay, and sometimes in hardware/automotive stores. This tool is also sometimes known as a "Mac Cracker". The same tool is also used for the other compact Macs.
A 1/4" T15 screwdriver-bit with a slot ground in its back surface (for a long flat head screwdriver) works nicely for accessing the under-handle screws. Most standard (1/4") bitdrivers have too thick a collar to reach the handle screws. The tool shaft should be no bigger in diameter than 8mm (~5/16").
T15 screws can be turned, in an emergency, with a flat head screwdriver with a blade width of about 3mm (1/8").
Sometimes the case is difficult to open the first time as it is held together with a tight friction fit. You can usually use a wide flat object to gently pry the case open, being careful not to leave marks in the plastic.
Replacement Parts
Logic Board
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| C15, C9 | 2 | 293D105X9050B2TE3 | Mouser |
| C4, C3, C13 | 3 | UCJ1V470MCL1GS | Mouser |
| C8, C5, C11, C14, C12, C21, C79, C74, C106, C6, C7, C10 | 12 | TAJB106K016TNJ | Mouser |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Additional Images
-
Top side of motherboard (Rev B)
-
Bottom side of motherboard (Rev B)
