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