Lowrance 7 Power Button not working

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Sradich
Posts: 175
Joined: Sat Mar 23, 2013 8:09 am
Kayak Make: Viking
Kayak Model: Profish 400
Location: Palmerston north

Tue Nov 15, 2016 7:20 pm

Hi all
After some help please. Power button is not working so have to turn on and off by disconnecting the power. When out on the water the screen dims and I can't adjust brightness as power button won't work. Any ideas to fix or help much appreciated
Cheers
Steve
Cheers
Steve from Palmy

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Smeg
Posts: 136
Joined: Thu Oct 04, 2012 9:44 pm
Kayak Make: Ocean Kayak
Kayak Model: Prowler 4.3
VHF Call Sign: ZMU2462
Location: Wellington

Tue Nov 15, 2016 7:58 pm

I had a similar thing happen with my Humminbird 500 series (I wasn't happy as I'd just bought the Yak off TM and texted the guy) he just said to clean the contact points with a small wire brush then use di-electric grease to keep them clean from grit and preventing oxidisation.

These finders get a hammering out there - i'm thinking of getting some sort of cover if i ever upgrade.

Hope this helps
PB# 57cm Snapper
PB# 54cm Trevally
PB# 59cm Kahawai
PB# 51cm John Dory

Ocean Kayak Prowler Ultra 4.3
Wilderness Systems Tarpon 140 Angler

Sradich
Posts: 175
Joined: Sat Mar 23, 2013 8:09 am
Kayak Make: Viking
Kayak Model: Profish 400
Location: Palmerston north

Tue Nov 15, 2016 8:11 pm

Hey thanks for replying. Do you mean the Contact points I'm the plug to the sounder?
Cheers
Steve from Palmy

User avatar
Smeg
Posts: 136
Joined: Thu Oct 04, 2012 9:44 pm
Kayak Make: Ocean Kayak
Kayak Model: Prowler 4.3
VHF Call Sign: ZMU2462
Location: Wellington

Tue Nov 15, 2016 8:21 pm

Hey thanks for replying. Do you mean the Contact points I'm the plug to the sounder?
Yeah those little pins that plug into the back of the sounder - sometimes they get a coating of green corrosion on them which is easily taken off with a light brush with a wire brush or similar.
PB# 57cm Snapper
PB# 54cm Trevally
PB# 59cm Kahawai
PB# 51cm John Dory

Ocean Kayak Prowler Ultra 4.3
Wilderness Systems Tarpon 140 Angler

Sradich
Posts: 175
Joined: Sat Mar 23, 2013 8:09 am
Kayak Make: Viking
Kayak Model: Profish 400
Location: Palmerston north

Thu Nov 17, 2016 6:39 pm

Unfortunately not the answer they are clean as and always use inox. Any other ideas?
Cheers
Steve from Palmy

User avatar
Smeg
Posts: 136
Joined: Thu Oct 04, 2012 9:44 pm
Kayak Make: Ocean Kayak
Kayak Model: Prowler 4.3
VHF Call Sign: ZMU2462
Location: Wellington

Wed Feb 08, 2017 7:48 pm

Hi Sardich,

Did you get this working?

Over the long weekend I had a look under the hood of my sounder and found that the cables were in a pretty sad state so after a touch of solder and some electrical tape - we're all up and running.
PB# 57cm Snapper
PB# 54cm Trevally
PB# 59cm Kahawai
PB# 51cm John Dory

Ocean Kayak Prowler Ultra 4.3
Wilderness Systems Tarpon 140 Angler

User avatar
Hairy Little Dwarf
Moderator
Posts: 7121
Joined: Thu Oct 16, 2008 9:39 am
Kayak Make: Phoenix
Kayak Model: Hornet
VHF Call Sign: Red Dwarf

Wed Feb 08, 2017 9:31 pm

Had a similar problem a couple of months ago (screen faded out, although the unit was still functioning)

Traced to thin film of corrosion on the battery terminals.
Attaching the spade connector scratched enough oxide off to kick it off, but as the day wore on and I wound up the brightness, it couldn't handle the increased current draw.

A sniff of wet and dry on the terminals at home and away she went (after a day fishing "old school")
Phoenix Hornet - Specialty Assault Craft

Dad! Dad! Look at his fish! It's way bigger than anything you've EVER caught! - Nosey 7-8yo boy on opening my icebox to father strapping down his $XXX Stabicraft 759(?) - Gold. Pure Gold.

Sradich
Posts: 175
Joined: Sat Mar 23, 2013 8:09 am
Kayak Make: Viking
Kayak Model: Profish 400
Location: Palmerston north

Sun Feb 12, 2017 7:55 am

Unfortunately not as sent to Lowrance and they said it was stuffed.
Cheers
Steve from Palmy

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