IBM PS2 3.5in Floppy Drive

For more information, see this article's corresponding Wikipedia page: IBM_PS/2.

IBM PS/2

Preliminary Information
Release Year	1987
Leak Risk	Medium
Batteries	Yes, BR-P2 6V Lithium for RTC and CMOS
Mounting Technology	Through Hole, SMD, Sockets
Capacitor Types	Aluminum Electrolytic, Tantalum, Ceramic
Destructive Entry	No

The IBM PS/2 Range was a mostly PC compatible line of computer by IBM after the PC,XT, & AT that uses MCA and other proprietary interfaces for standard hardware.

Known Issues

Floppy Drive Won't Work

Causes

• Capacitors on floppy drive leak

Solutions

• Recap floppy drive

Disassembly Notes

• Computer is mostly tool less to work on
• Be careful with plastic pegs that need to be lift, use a plastic fork claw tool (a trim pop tool) if they are stuck to pry it up from underneath

Original Parts

Drive DFP732D12A - Floppy Drive Motor Board

YASKAWA ELECTRIC, YG-F2, GP8383118, REV A

• 

  Floppy drive motor PCB

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Type
6C	1	10 µF	16V	SMD Can	4mm	5.75mm	Aluminum Electrolytic
1C	1	4.7µF	25V	SMD Can	4mm	5.75mm	Aluminum Electrolytic
8C, 9C, 10C	3	4.7µF	16V	SMD Can	4mm	5.75mm	Bipolar Aluminum Electrolytic*

• No stripe visible on cans and no polarity marking on PCB

Replacement Parts

Drive DFP732D12A - Floppy Drive Motor Board

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
6C	1	UCL1E100MCL1GS	Digikey	🔎
1C	1	UWD1V4R7MCL1GS	Digikey	🔎
8C, 9C, 10C	3	UWP1C4R7MCL1GB	Digikey	🔎
Full BOM			Digikey

Related Links

• Video on disassembly and capacitor information