Commodore PET(CBM) 3032 Repair

May 25th, 2014 Leave a comment Go to comments

Commodore CBM/PET 3032 Motherboard Repair.

Defect:

  • Garbled screen and then “Illegal Quantity Error” message or 31 Bytes free

Replaced parts:

  • Replaced 1 x NE555 (A2)
  • Replaced 2 x Unstable RAM 4116 (I2/I3)
  • Replaced 1 x 74LS153 (E4)

Categories: Commodore CBM/PET family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various
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