IBM PS/2 Model 60 PSU

For more information, see this article's corresponding Wikipedia page: Device.

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

This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.

IBM PN 6278215

Preliminary Information
Release Year	1987
Mounting Technology	Through Hole
Destructive Entry	No

The IBM PS/2 Model 60 PSU uses a proprietary form factor with a non-standard AMP motherboard connector. The IBM part number is 6278215. The PCBs in the PSU are made by Zenith and have a copyright of 1986.

Disassembly Notes

The housing disassembly requires a Torx T10 security bit. The housing is comprised of two metal pieces. The fan and a PCB containing two filter AC capacitors and a transformer are mounted to the L-shaped housing piece. A much larger PCB is mounted to the opposite housing piece. Wiring between the two pieces makes disassembly difficult. The strain relief bushing for the motherboard is especially challenging and required brute force with pliers to remove. The fan must be removed from the housing and a several zip ties must be cut in order to fully separate the two housing pieces and gain full access to the PCBs.

Original Parts

Basic PCB Name

Note model numbers and board revisions here

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
	1	0.47 µF	250	Through Hole				0 °C			Markings: 1.58.50 MKT GPF .47µF M 250V~ X2 40/085/21 SH V1
CX1, CX4	2	0.68 µF	250	Through Hole						ERO	Top Markings: F1772-468-2030 V1/ Side Markings: 0,68 µF X2 MKT HMF 250V~ SH 56 5-1 25/085/21

0.47 µF 250V filter capacitor is soldered directly to the pins on the back of the IEC connector between hot and neutral.

Original 0.47 µF filter cap in situ zip tied to ground lead on the back of the IEC connector and top of CX1

0.47 µF filter cap - close up of connection

CX1 filter cap side markings

CX1 top markings up close

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.

Kits

• Digikey BOM: https://www.digikey.com/

Related Links

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