User manual for DM700 ECDIS hardware
Copyright Danelec Marine A/S
MAN11804-10 Page 14/30
5 Self-test
The presence of the keyboard, trackball, and USB hardware key is monitored by the DPU. A
caution will be generated if an error in one of these devices is detected.
5.1 Buzzer in monitor HMI
The buzzer in the monitor HMI may be checked by adjusting the buzzer volume up or down. The
buzzer will briefly sound at the current audio level if the buzzer volume if adjusted up or down.
5.2 Test of monitor
Check the colors and the contrast for the monitor (visually), and if in doubt consult section 4.2
“Control of Monitor”.
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