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Troubleshooting
30 AD2089 Operator’s Manual
Appendix B: Troubleshooting
Problem Check List
8 No power to keyboard. 9
Check AC outlet
9
Check wall transformer connections
9
Check modular cable connections to keyboard and
terminal block
9
Measure transformer output at terminal block
8 No response to keystrokes (power
verified).
9
Check connection of terminal block to system
controller's communication port.
9
Check baud rates for keyboard and system
controller.
9
Check DIP switch setting for communications
protocol.
9
Run built-in test to verify keyboard operation.
8 Keyboard responds to keystrokes on
some, but not all keys.
9
Verify keyswitch position and DVMS/Monitor Mode
Status.
9
Run built-in test to verify keyboard operation.
8 Cannot perform menu positioning with
multi- function section keys
9
Verify keyswitch position. Switch must be in MENU
position to perform menu programming functions.
8 Display LEDs not visible. 9
Verify LEDs brightness level.
9
Run built-in test to verify LED operation.
9
Re-initialize firmware
8 Keyboard speaker not audible. 9
Verify speaker volume level.
9
Check that switching system controller has not
disabled speaker.
9
Run built-in test to verify speaker operation.
8 Cannot set up baud rate, brightness level,
or speaker volume.
9
Verify that keyswitch is in MENU position.
8 Cannot access main menus of system
CPU.
9
Verify that keyswitch is in MENU position.
9
Verify that correct monitor is selected for menu
programming.
9
Verify CPU program monitor output is connected
8 Pan/tilt cameras move continuously and/or
cursor scrolls continuously in MENU mode.
9
Run built-in test to verify joystick operation.