Cobra Digital 7750 PLT - Manual (Page 44)

8.4) My unit will not turn on
1. Check the power switch on the back of the unit. Make sure it is switched ON.
2. Try plugging the AC adapter into the nav unit. If the nav unit turns on, then you know that it
is good. If it does not turn on then there is a problem with the nav unit.
3. The cigarette socket may not have power. Try firmly pushing the cigarette plug into the
socket and twist it a little.
4. The power cord may be faulty. Try a replacement power cord.
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