Humminbird 4089901 Marine GPS System User Manual


 
1
Power On the Unit
Follow the instructions below to power on your Humminbird® control head.
1. Press the POWER/LIGHT key.
2. When the Title screen is displayed, press the MENU key to access the
Start-Up Options Menu.
3. Use the 4-WAY Cursor Control key to select Normal (if there is a
transducer attached to the control head), or Simulator (if there isn’t a
transducer attached to the control head).
NOTE: See Start-Up Options Menu for more information.
If a functioning transducer is connected, Normal operation will be
selected automatically at power up, and your Fishfinder can be
used on the water.
If a transducer is not connected and you wait too long to select a
Start-Up Option, the system will default to whichever menu is
already highlighted.
In Simulator you can learn how to use your control head and save
settings in advance for later use.
581i Combo Title Screen
Power On the Unit