To Next PageTo Next PageWhat to do if Simrad GN33 has no picture on display screen?
If there is no picture on the display screen of your Simrad GPS, first, press the [PWR] key on the keypad. If that doesn't work, replace the fuse, ensuring you use a 4.0A slow-blow type fuse.
Why is my Simrad GPS screen update extremely slow?
If the screen update on your Simrad GPS is extremely slow, turn off ‘Course line’ for each stored route and turn off ‘Display track’ .
What to do if there is no normal picture or key operation on Simrad GPS?
If your Simrad GPS shows no normal picture or the keys aren't working, try turning the unit off and on again. If that doesn't work, disconnect the power and then reconnect it. Also, remove the C-MAP chart if you suspect it might be defective.
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