Canon MD-3301

Canon MD-3301 Back

Canon MD-3301 Front

The Canon MD-3301 is a single-sided 3.5" disk drive, used exclusively in the Canon Cat.

For more information, see this article's corresponding Wikipedia page: https://en.wikipedia.org/wiki/Canon_Cat.

Preliminary Information
Leak Risk	High
Batteries	None
Destructive Entry	No

Known Issues

Symptom or Problem Encountered

Causes

• Very common for the plastic supports that hold the head rail in place to break off. This can easily lead to catastrophic damage to the drive head if a user attempts to forcibly eject a disk after this has occurred.

Solutions

• Cameron Kaiser's writeup on using galvanized metal pipe hanger to reinforce the plastic supports.

Disassembly Notes

(Once drive is removed from Canon Cat)

Do not attempt to remove the floppy cable from the drive circuit board.

Remove small Philips head screws, two on each side, to free both parts of the metal enclosure.

(Remove disk tray)

Original Parts

K36-0177-02 (screen print on front) | K90-1816-03 (printed label on back)

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series	Note
C17, C18	2	47 µF	16	Through Hole				85 °C	Electrolytic		763I
C5	1	10 µF	16	Through Hole				85 °C	Electrolytic
C2, C3	2	4.7 µF	35	Through Hole				85 °C	Electrolytic			C3 is horizontally mounted
C4	1	1 µF	50	Through Hole				85 °C	Electrolytic

Replacement Parts

Basic PCB Name

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
			Digikey

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.