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Garmin 188C Sounder not working

Old 03-01-2012, 05:22 PM
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Default Garmin 188C Sounder not working

Garmin 188C, the sounder is not showing anything on the screen. GPS works fine and sounder shows temperature but nothing on sounder/fishfinder, can this be fixed?
Old 03-01-2012, 06:19 PM
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Roughly a 10 year old unit. I doubt Garmin would fix, but it's worth a call.
Old 03-01-2012, 09:41 PM
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can this be fixed?

Not repairable. But before tossing it, I'd try another transducer. If that doesn't point up the problem, try a 'cold boot': with the unit OFF, push and hold QUIT, then power up the unit. First save any waypoints, etc you wish to preserve because you will lose all input data and the unit will revert to factory defaults. I have to do it not infrequently to my 320, which is essentially the dept finder of the 188 ...
Old 04-07-2012, 04:25 AM
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Originally Posted by keepemtight View Post
Garmin 188C, the sounder is not showing anything on the screen. GPS works fine and sounder shows temperature but nothing on sounder/fishfinder, can this be fixed?
I'll buy it as-is.

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