Humminbird 190C PT Fish Finder User Manual


 
Troubleshooting
DonotattempttorepairthePiranhaMAX™yourself.Therearenouser-serviceable
partsinside,andspecialtoolsandtechniquesarerequiredforassemblytoensure
the waterproof integrity of the housing. Repairs should be performed only by
authorized Humminbird® technicians.
Many requests for repair received by Humminbird® involve units that do not
actually need repair.These units are returned “no problem found.” If you have a
problemwithyourPiranhaMAX™,usethefollowingtroubleshootingguidebefore
callingthe Customer Resource Center orsending yourunitin for repair.
1. Nothing happens when I turn the unit on.
Checkthepowercableconnectionatbothends.Besurethecableisconnected
correctly to a reliable power source — red lead to positive, black lead to
negative orground. Ensurethe power available isbetween 10and 20VDC.
Check the power connection to the PiranhaMAX™. It is possible to force the
power cable connector into the cable holder incorrectly. If the connector is
reversed, the unit will not work. Examine the contactson the back ofthe unit
toensurethereis no corrosion.
2. There is no transducer detected.
The PiranhaMAX™ has the ability to detect and identify that a transducer is
connected. When powering on, if a message indicates “transducer not
connected”, make sure that an appropriate transducer connector is plugged
intotheunit.Inaddition,inspectthetransducercablefromendtoendforbreaks,
kinks,orcutsintheoutercasingofthecable.Alsomakesurethatthetransducer
is fully submergedin water.If the transducer is connected to the unit through
aswitch,temporarilyconnectitdirectlytotheunitandtryagain.Ifnoneofthese
actionsidentifiesan obviousproblem,the transducer itself isprobably atfault.
Besuretoinclude thetransducerifreturningtheunitfor repair.
29