DTK/ERSO XT Beep Codes
- 1 Short Begin POST and End POST
- Long-Short Long-Short Long-Short Video Initialization Failure, or Invalid Video Switch Setting
- 1 Long Keyboard Failed or Locked, Interrupt or Other System Board Error
- Continuous Tone First 64K RAM Failure
- 1 Short Repeated Indefinitely Parity Error in First 64K RAM
- Long-Short Floppy Disk Drive or Controller Failure