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Atari 1200XL Troubleshooting Guide
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=== Using the SALT 2.05 Diagnostic Cartridge === # Insert the SALT 2.05 cartridge and boot. # At the SALT header, note: "ROM: ERR" and a red screen are '''normal''' for the 1200XL (the SALT was designed for the 400/800 ROM). # Enter Display Options (D, then E, then C for continuous). # Run the RAM Test (R). Failures appear as red 1s in '''row D only''' (the 1200XL uses a single 64K RAM bank).
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