v09/2020
23
9. ANNEX
TROUBLESHOOTING
LED on the control
unit lights
•
Check that the control unit is connected to a power supply
•
Check that the control unit is switched on
•
If previous conditions are met, but the LED still lights, check the network fuse of
control unit
Underwater unit does
not respond to
JOYSTICK
•
Check that the control unit is switched on – LED must light
•
Check that the joystick is switched on
•
Check the batteries in joystick
Underwater unit
does not swim
directly
•
Check horizontal thrusters – propellers have to turn easily– check by finger
In case some propeller turns hardly, clean slide bearing of coupling axis of
propeller and check the coupling setting
Underwater unit does
not respond correctly
to Joystick
•
You have probably switched on the function
MAKRO
on joystick (some models).
Resolve the problem according to the procedure in chapter JOYSTICK
DESCRIPTION
The screen displays
incorrect value of
navigation depth
•
Make the calibration of depth sensor according to this manual
Underwater module
does not respond to
joystick
•
Joystick is in sleep mode (power saving).
See chapter
USER’S MANUAL FOR OPERATION
The monitor screen is
black. There is no
picture
•
Check the connection between the monitor and the control unit. See images in
the manual.
•
When connection is OK, check setting of the monitor – THE CHOICE OF INPUT
SIGNALS – see the manual for the monitor