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2025-02-19: I recently was having some issues with an old Macintosh 3.5" Floppy disk drive. I decided to try recapping it to see if that would resolve the issues. Since I couldn't find any info online, I figured the least I can do is create a quick guide based on the work I just completed. Hope this helps someone else.
Disassembled drive; Left image shows bottom of the drive with manufacturer identification. Right image shows disassembled drive after replacing the capacitors.
There are quite a few guides online on disassembly of this drive. Don't touch the optical sensor and you should be ok.
There are a total of 5 capacitors on this drive.
C106 Above
(Left to right) C104, C107 & C105
(Left to right) C101 and C102
Capacitor locations. Capacitor specs below:
| Label | Original Value | Original Dimensions | Replacement | Markings |
|---|---|---|---|---|
| C101 | 6.3V 47uF 85° | 5mm Diameter 5.5mm Height 2.5mm Pin Center |
TDK FK11X5R0J476M | 476M |
| C102 | 16V 22uF 85° | 5mm Diameter 5.5mm Height 2.5mm Pin Center |
TDK FG11X7R1C226MRT06 | 226M |
| C104 | 50V 0.47uF | 4mm Diameter 5.5mm Height 2.5mm Pin Center |
Murata RCER71H474K1A2H03B | 474K |
| C106 | 50V 1uF 85° | 4mm Diameter 5.5mm Height 2.5mm Pin Center |
Murata RCER71H105K2A2H03B | 105 K5C |
| C107 | 16V 10uF 85° | 4mm Diameter 5.5mm Height 2.5mm Pin Center |
TDK FG16X7R1E106KRT06 | 106K |