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File:Atari 130XE keyboard multiplexers U24 U25 and connector J8 (C070065 schematic).png

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Summary

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Detail of Atari's 130XE schematic: POKEY U22's keyboard scan outputs K0-K5 (pins 21-23 and 18-20) and return inputs KR1 (pin 25) and KR2 (pin 16), the two CD4051 multiplexers U24 and U25, the 270 Ω series resistors R137-R153 to the keyboard connector J8, and R96 (47 kΩ) and CR5 on the KR2 line.

Source

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Rendered from File:Atari 130XE Parts List and Production Test Instructions.pdf (Atari's 130XE Reference Manual), PDF page 14, the schematic diagram C070065 Rev. B drawn by Atari (Japan) Corporation in 1985, at the scan's 300 dpi, and cropped.

Author

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Atari (Japan) Corporation for Atari Corp.

Licence

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Copyright Atari Corp. Hosted for preservation and repair reference, with the source cited.

File history

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Date/TimeThumbnailDimensionsUserComment
current11:40, 25 October 2026Thumbnail for version as of 11:40, 25 October 20261,950 × 670 (38 KB)Josh (talk | contribs)Upload schematic detail for Atari 130XE repair guides

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