VIC 20 Manuals

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C2N Cassette Unit Manual

1600 Vicmodem Manual

Below are two sets of schematics for the VIC 20 that I have re-drawn. One set is for the E Version (early vic 20) and the other is for the N Version (later model). The easiest way to tell them apart is the label on the VIC 20 itself. These are very Hi-Res drawings, see sample below.

E Schematic
Older Version

N Schematic
Newer Version