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Atari 800XL ANTIC Chip Repair and Retrobright

Published August 5, 2023

About This Video

Follow the restoration of a classic Atari 800XL computer after diagnosis by Adrian Black of Adrian's Digital Basement revealed a failed ANTIC (Alphanumeric Television Interface Controller) graphics chip.

Originally featured on Adrian's channel in July 2023, this repair project continues with the installation of a replacement C021697 NTSC ANTIC chip, additional restoration work, and efforts to bring this iconic Atari 8-bit system fully back to life.

Restoration Work:

  • Diagnosis of the failed ANTIC graphics chip
  • Installation of a replacement C021697 NTSC ANTIC chip
  • Additional hardware inspection and testing
  • Retrobright treatment of the yellowed lower case
  • Final efforts to return the Atari 800XL to working condition

ANTIC Chip Details:

  • Full name: Alphanumeric Television Interface Controller
  • Responsible for major Atari 8-bit graphics functions
  • Replacement part used: C021697 NTSC ANTIC
  • One of the most important custom chips in Atari home computer history

Atari Systems Using ANTIC Hardware:

  • Atari 600XL
  • Atari 800XL
  • Atari XE series

This repair provides a closer look at the graphics hardware that helped define the Atari 8-bit computer family while documenting the restoration and preservation of an original Atari 800XL.

Watch on YouTube (external link)