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TROUBLESHOOTING GUIDE (Continued)

SYMPTOM: POSSIBLE SOLUTION:
When loading a program, the time is excessive and stepper motor is heard (bump sound) a number of times.
  • Check that the diskette is centered properly.
  • Check drive speed.
  • Check drive alignment.
Data file error.
  • Check GCR ROM UK6.
Appears to load but won't run.
  • Check 6532's.
  • Check UK3 controller ROM.
Won't format/write.
  • Check write protect tab in disk and switch on drive.
  • Check write circuitry on analog board.
  • Check write enable on digital board.

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This page has been created by Sami Rautiainen.
Read the small print. Last updated April 09, 2006.