Table-based version

Directory /pub/cbm/schematics/computers/pet/2001N/

This is the service information on the 2001N/3000/4000 (no CRTC). This is the dynamic system board.

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320349-1.gif

Schematic 320349 page 1 of 9, microprocessor-memory expansion

320349-2.gif

Schematic 320349 page 2 of 9, IEEE-488 interface

320349-3.gif

Schematic 320349 page 3 of 9, cassette & keyboard

320349-4.gif

Schematic 320349 page 4 of 9, ROMs

320349-5.gif

Schematic 320349 page 5 of 9, RAMs

320349-6.gif

Schematic 320349 page 6 of 9, master timing

320349-7.gif

Schematic 320349 page 7 of 9, Display logic

320349-8.gif

Schematic 320349 page 8 of 9, Display RAMs

320349-9.gif

Schematic 320349 page 9 of 9, voltage regulator

320351-1.gif

320351-2.gif

320351-3.gif

320351-4.gif

320351-5.gif

parts list

320351-6.gif

parts layout and jumper information

321445.gif

Schematic for 9" CRT display (later version than that with the 2001 schematics)

321446.gif

Parts layout for 9" CRT display, schematic 321445

321447-01.gif

321447-02.gif

321447-03.gif

321447-04.gif

321447-05.gif

321447-06.gif

321447-07.gif

321447-08.gif

321447-09.gif

321447-10.gif

Oscilliscope waveforms for test points indicated on 321445

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