Manuel for humminbird 565 dual beam fishfinder with 640 vertical pixels

Hi!
Since your unit isn't listed in their owners manual section, you'll have to contact their support rep.

http://www.humminbird.com/support/Contact_Support.aspx

Hope this helps you out.

I have no idea, I use these same ones and havve several mounted and they are used both in summer and winter, never had one leak. I also looked up these and did not see where there were any issues with this problem. I suggest you call Humminbird and talk to them, they are usually very helpful.
Toll-free: 1-800-633-1468
Monday - Friday
8:00am - 4:30pm CST

yes, generally there is an inline fuse on the hot (red) wire. it is incased in a white sleeve that twists apart and reveals the fuse. if its not the fuse check the battery or connections to the back of the depth finder.

HOW TO HOOK UP THE power

try this
http://store.humminbird.cust.shopatron.com/media/document/M_531521-1_F.pdf
Sounds like you need to set it to fish and turn the sensitivity down.

It's a difficult one to find, but Humminbird should have one. Contact them by clicking here and filling out the request.

Hi!
Installation of the speed/temp wheel is quite easy, here's a manual:
SW Speed & Temp
The new sensor cable plugs into the square plugin in back of your Humminbird....it's the small square connector with 4 holes.
Best of luck!
Mike

Hi!
If the sounder works in deeper water then try changing the unit to fresh water instead of salt water (or vise-versa). You'll need to switch to advanced settings first (in the setup menu tab), then switch to the afformentioned salt or fresh water (in the sonar menu tab).
Alternatively, switch back to factory defaults as these settings are made to work "right out of the box".
Best of luck!
Mike

Hi, Assuming you are in the USA? Then here is a contact number for Humminbird:

Who to call:
Toll-free: 1-800-633-1468
Monday - Friday
8:00am - 4:30pm CST

Please rate my response on FixYa! :)

according to the manual... 10-20 VDC

Please rate this solution.. thanks