Kurzweil HUB7, Manual, Page: 48 / 56

RSP8 Diagnostics and Troubleshooting
Appendix A-6
EEPROM Initialize
Interactively calibrates the joystick and 8 control knobs then
writes the calibration data into the non-volatile EEPROM. When
run, the screen
fi rst changes to show joystick calibration
instructions. The calibration data is at the bottom of the display
and consists of minimum and maximum readings for the X and Y
axes of the joystick. These are initially 32 for the minimum and
192 for the maximum.
As the joystick handle is rotated per the displayed instructions,
these values are updated. After a few rotations when the values
are
fi rmly established and don't change any more, the button
beside the joystick should be pressed to write them into the
EEPROM. Typical minimums are 10 +-8 and typical maximums
are 245 +-8.
Next the screen changes to show control knob calibration
instructions. Knob #1 should be rotated exactly 10 clicks
clockwise then the Joystick button pressed again. At the bottom
of the screen is a count of the number of contact state changes
seen which should be near 10, 20, or 40 after the 10 clicks
depending on the encoder type in the unit. If it is not near one of
these values when the Joystick button is pressed, you will be
asked to try again.
Following control knob calibration, the calibration data is written
into the EEPROM. If writing to the EEPROM is successful,
PASSED will be displayed; if not, FAILED will be displayed. In
the latter case it is likely that the EEPROM chip on the CPU board
is defective.
Description of the Controls Diagnostic
Enter the Controls Diagnostic by pressing the leftmost soft button
while the main diagnostic menu is showing. The screen will
change to a special format that shows the exact electrical
response of every control so that problems can be easily detected
and diagnosed.