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Author Topic:   Garmin Won't Power Up
george nagy posted 11-12-2007 04:26 PM ET (US)   Profile for george nagy   Send Email to george nagy  
I finally got to reinstalling my Garmin sounder, GPS, and chart plotter unit only to find that it doesn't turn on. I checked and verified that I am getting continuity through the harness. Is there an internal battery which may come into play if the unit is stored for more than a year? I really don't want to replace it just yet!
kamie posted 11-12-2007 06:22 PM ET (US)     Profile for kamie  Send Email to kamie     
George,

Silly question but have your checked the fuse? If the battery in the unit is bad it won't store your settings but the unit should still turn on. Is it possible to take it your local marine store and see if it turns on if you plug it in. I believe they power the displays off the 110 connectors and this would eliminate any fuse issues as well.

Check master fuses as well and breaker switches.

Riverwhaler posted 11-12-2007 07:28 PM ET (US)     Profile for Riverwhaler  Send Email to Riverwhaler     
Make sure the brightness is not turned down all the way. This has happened on my 397.
jimh posted 11-12-2007 07:55 PM ET (US)     Profile for jimh  Send Email to jimh     
A little corrosion on the ON/OFF switch would cause this.
Casco Bay Outrage posted 11-12-2007 08:04 PM ET (US)     Profile for Casco Bay Outrage  Send Email to Casco Bay Outrage     
George -

I had the same issue with my 172c and it was just as Riverwater said. Somehow I had turned the brightness down to zero. Come to think of it, this occurred on the Piscatisqua River trip that Riverwhaler attended. What a coinkydink.

Off the top of my head: When off, push power once, then again. Push the right arrow to make brighter.

Hope it is that.

CBO

george nagy posted 11-13-2007 01:46 PM ET (US)     Profile for george nagy  Send Email to george nagy     
I will try to adjust contrast but I have my doubts. I thought there was an audible alarm when powering up? Anyway I do seem to be getting power through the pin harness.
Chuck Tribolet posted 11-13-2007 08:18 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
George: What model Garmin?

Have you measured VOLTAGE, not just continuity?


Chuck

george nagy posted 11-15-2007 08:47 AM ET (US)     Profile for george nagy  Send Email to george nagy     
The unit is a 185sounder. Last evening I tried the backlight/contrast button, wiggled the pin connector onto the unit and presto it works. There is a message telling me the data was lost due to the internal battery being low. Is this something that will charge over time if U leave the unit connected for a while?
Chuck Tribolet posted 11-15-2007 09:33 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
I don't think that will fix itself. Wait and see, and when
you keep loosing routes and waypoints, Google up instructions
on how to replace the battery. It's typically a fairly
standard coin cell, but with solder contacts. You may be
able to find one with solder contacts, or a socket with the
same contact layout (Mouser is a good source) that will take
the vanilla coin cell.


Chuck

kamie posted 11-15-2007 08:16 PM ET (US)     Profile for kamie  Send Email to kamie     
"(Mouser is a good source)"
Low battery will not fix itself and will eventually die.
I ordered a replacement from Mouser for my garmin 180 and it works fine. If i was going to replace it again, I would go with one of the holders that you solder on, that way you just pop out the battery.

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