IBM 5150

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For more information, see this article's corresponding Wikipedia page: IBM Personal Computer.
IBM 5150
5150.png
Preliminary Information
Release Year 1981
Leak Risk Low
Batteries None (Addon cards may)
Mounting Technology Through Hole, Sockets
Capacitor Types Aluminum Electrolytic, Tantalum, Ceramic
Destructive Entry No

Released as the IBM Personal Computer, or PC, the 5150 is based around Intel's 8088 processor featuring 8-bit ISA slots for expansion cards. It could be ordered with two 5.25" floppy drives, most commonly 360k Tandon TM100 models. The PC used a 63.5W power supply.

Known Issues

No power

Causes

  • Power supply will not turn on

Solutions

  • Power supply must have a load on it to activate
  • Recap

Disassembly Notes

The top shell must be tiled up when pulled all the way forward to release.

Watch out for the speaker on the left side when sliding the shell

The top rear screw tab may catch on the PSU and cable (lift rear when sliding avoid)

PSU slides into tabs in bottom shell

When connecting the PSU back to the system the mother board power connectors should have the black wires next to each other.

Original Parts

63.5W Power Supply Main Board

204-1040F

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Pitch Temp Type Brand Series/Markings (Anything in parentheses is probably a lot code/batch code)
C1, C2 2 220uF 200V Through Hole (3 Leg) 25mm 85C Electrolytic Marcon CEHPW-N
C5 1 100uF 16V Through Hole (Radial) 8mm 105C Electrolytic Nichicon M
C11 1 0.0033J? 100V? Through Hole (SIP) 10mm Paper? 100TSC, 326PE
C12 1 10uF 50V Through Hole (Radial) 5mm 105C Electrolytic Marcon CE-US(3UC)
C13 1 4.7uF 10V Through Hole (Radial) 5mm 105C Electrolytic Marcon CE-US(3TC)
C16, C18, C26, C28, C29, C30, C33 7 10uF 16V Through Hole (Radial) 5mm 105C Electrolytic Marcon CE-US(3TC)
C20 1 2200uF 16V Through Hole (Radial) 16mm 105C Electrolytic Marcon CE-US(3SB)
C21, C22, C23, C24 5 2200uF 10V Through Hole (Radial) 16mm 105C Electrolytic Marcon CE-US(2XB)
C26 1 330uF 10V Through Hole (Radial) 10mm 105C Electrolytic Nichicon M
C38 1 1000uF 25V Through Hole (Radial) 16mm 105C Electrolytic Nichicon M
C44 1 22uF 16V Through Hole (Radial) 5mm 105C Electrolytic Marcon CE-US
C25, C26, C9, C17, ?, ?, C31, C34 8 0.1uF 100V Through Hole (SIP) 10mm Paper?
C19 1 0.0047k (4.7pF?) 100V? Through Hole (SIP) 10mm Paper? 100-130,

CQ203

Notes

Two difference examples were checked and different brands were used for some caps

Replacement Parts

63.5W Power Supply Main Board

204-1040F

Capacitors
RefDes Qty Compatible Part Number Order Links
C1, C2 2 UCS2D221MHD1TN DigiKey Mouser
C12 1 860240672002 DigiKey Mouser
C13 1 860020572001 DigiKey Mouser
C16, C18, C26, C28, C29, C30, C33 7 860020372001 DigiKey Mouser
C20 1 16PX2200MEFC10X20 / UVZ1C222MHD DigiKey Mouser
C21, C22, C23, C24 5 860020275020 Digikey Mouser
C26 1 860020273010 DigiKey Mouser
C38 1 860020475018 DigiKey Mouser
C44 1 860020372002 DigiKey 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.

Kits[edit source]

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

Additional Images

References