Raymarine ST70 User Reference Manual page 45

Chapter 4: Maintenance and troubleshooting
Nothing on
screen
Are the pilot buttons
back-lit?
NO
YES
Check display brightness
setting and adjust as
necessary (see Operating
Guide)
Is the display lit?
NO
YES
Return to
normal
operation
Figure 4-1 ST70 troubleshooting – Chart 1
Is power on at any other
product in the system?*
NO
YES
At faulty pilot, carry out
switch-on procedure
Are the pilot buttons
back-lit?
NO
YES
Is the display lit?
NO
YES
Return to
normal
operation
Use the About Display & About
information about your products.
ST70 user troubleshooting
* The system to which the instrument is connected (either
2
ng
SeaTalk, SeaTALK or SeaTalk )
Switch on power to the
system
Is problem still
present?
NO
YES
Ensure all system
connections are made
satisfactorily
Is problem still
present?
NO
YES
System features to get
Obtain
technical
assistance
37
Chart 1
Return to
normal
operation
Return to
normal
operation