File:Commodore PET 2001 schematic 320026 sheet 2, 6540 ROMs H1-H7.png

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Summary

ROM part of Commodore's "PET Computer Main Logic, Memory Section" schematic, drawing 320026, sheet 2 of 3, for PET 2001 board assembly 320008. It shows the seven 6540 ROMs and their address ranges: H1 C000-C7FF, H5 C800-CFFF, H2 D000-D7FF, H6 D800-DFFF, H3 E000-E7FF, H4 F000-F7FF and H7 F800-FFFF, with their block select lines SELC, SELD, SELE and SELF and address line BA11.

Source

Commodore Business Machines, PET Computer Main Logic schematic, drawing 320026, sheet 2 of 3, hosted on this wiki as File:Commodore PET 2001 Main Logic Schematic (320008).pdf (PDF page 2). Rendered at 250 dpi and cropped.

Author

Commodore Business Machines

Licence

Copyright Commodore Business Machines. Hosted for preservation and repair reference, with the source cited.

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	11:08, 25 October 2026		1,840 × 650 (337 KB)	Josh (talk \| contribs)	PET 2001 ROM schematic crop for the ROM guide

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File usage

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Commodore PET 2001 ROM Replacement