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C64 and Vic20 Hardware Repair

Posted on November 2, 2013 - December 10, 2023 by Rumblefish

Last updated on December 10th, 2023 at 03:25 pm

Defects found on the Commodore VIC-20:

  • Error message (device not present) when trying to access the IEC devices, like a Floppy Drive.

Defects found on the Commodore 64:

  • Black screen of death after installing the missing roms.

The repair of the Commodore VIC-20 was made by replacing a HEX Inverter Buffer 7406.

The repair of the Commodore C64 was made by replacing the MOS 906114-01 (PLA – Programmable Logic Array).

You can find Gallery of the Repair at HERE .

If you liked this post then please Visit How to repair your Commodore Disk Drive 1541

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Posted in C64 Hardware, Machine CollectionTagged repair, vic20

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