Raymarine ST70+ Operating Manual page 70

62
Nothing on screen
Is power on at any product in
the system?*
NO
YES
Is the power cable connected
at the rear of the display?
NO
YES
Can you switch power on
using the keypad?
NO
YES
Is the display lit?
NO
YES
Check display brightness setting
and adjust as necessary (see
Operating Guide)
Is the display working OK?
NO
YES
Return to
normal
operation
Figure 4-1: Troubleshooting chart 1
Diagnostic charts to go here
Ensure all system
connections are made
satisfactorily
Is problem still present?
YES
Obtain
technical
assistance
ST70+ User Reference Manual
ST70+ user troubleshooting
Switch on power to the
system
Is problem still present?
YES
NO
Chart 1
NO
Return to
normal
operation