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Garmin 2010c help needed

Old 02-27-2015, 04:01 AM
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Default Garmin 2010c help needed

I have a 2010c which has started to "display sounder turned off"
I have checked connections but cannot find the cause of the problem.
I live in Pompano beach , florida and am hoping one of the electronics guru can come to my home and repair it. the boat is lift kept,no trailer.I have a nib gsd 20 in case that is the problem,I am just not good with electronics, any help would be greatly appreciated, thanks
Old 02-27-2015, 07:51 AM
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Have you tried calling Garmin support (800) 800-1020 to hear what they think it could be?
Old 02-27-2015, 01:09 PM
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yes, however it is impossible for me to check the wiring since I am colorblind
Old 02-27-2015, 01:53 PM
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Ask someone what color the status light on the GSD20/22 is. Most likely that is your problem
Old 02-27-2015, 02:32 PM
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Where are you in Pompano, I live in Snug Harbor, if you're in the neighborhood, I can swing by and take a quick look - call my cell 561-674-3308
Old 02-27-2015, 03:54 PM
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Thanks Max
Old 03-17-2015, 05:57 PM
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Max from MaxMarine Electronics was kind enough to come over and resolve the issue which seems to be a common problem on these older Garmin units.He was thorough, knowledgeable and above all Honest,
THANKS AGAIN
Old 03-18-2015, 04:45 AM
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Originally Posted by hugot View Post
Max from MaxMarine Electronics was kind enough to come over and resolve the issue which seems to be a common problem on these older Garmin units.He was thorough, knowledgeable and above all Honest,
THANKS AGAIN
Thanks for the update. So what was the problem and how did he fix it?
Old 03-18-2015, 05:25 AM
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First off, let it be known, I don't do service calls but Hugo is in the neighborhood and I knew that no one around here would be able to figure this out so I offered my assistance.

Hugo had a bad thermistor in his transducer, causing the GSD20 not to recognize that there was a transducer hooked up to it.

The GSD20,21, 22, and maybe even the 24 (not sure on the 24 though) check for resistance in the thermistor circuit before they begin functioning. If there is no continuity in the temp circuit, the sounder module will assume there is not a transducer connected to it. They jump the temp circuits on transducers like the M260 and P79, because there is no thermistor in those transducers.

We were able to easily remedy the problem by jumping the two thermistor wires on the transducer cable. He lost temp, but now he has his bottom machine back. I advise looking at the schematic on Airmar's cross reference before attempting something like this, because some transducers are wired differently.
Old 03-18-2015, 05:29 AM
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Max, thanks for the explanation. Bet I wasted a couple 22's and transducers trying to wrangle with this issue.
Old 03-18-2015, 06:18 AM
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Originally Posted by mstyle8517 View Post
First off, let it be known, I don't do service calls but Hugo is in the neighborhood and I knew that no one around here would be able to figure this out so I offered my assistance.

Hugo had a bad thermistor in his transducer, causing the GSD20 not to recognize that there was a transducer hooked up to it.

The GSD20,21, 22, and maybe even the 24 (not sure on the 24 though) check for resistance in the thermistor circuit before they begin functioning. If there is no continuity in the temp circuit, the sounder module will assume there is not a transducer connected to it. They jump the temp circuits on transducers like the M260 and P79, because there is no thermistor in those transducers.

We were able to easily remedy the problem by jumping the two thermistor wires on the transducer cable. He lost temp, but now he has his bottom machine back. I advise looking at the schematic on Airmar's cross reference before attempting something like this, because some transducers are wired differently.
So the issue was the Transducer not the head unit or the sounder module?
Old 03-18-2015, 07:40 AM
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Correct, the issue was the transducer.
Old 03-18-2015, 08:49 AM
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THT and its sponsor(s) comes through again......
Old 03-18-2015, 02:19 PM
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sure did!

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