Humminbird piranha 230

ou should be able to download a manual from this site. Click on the manuals tab.
http://hegroup.com.au/index.php/brand/piranha/piranha-phantom-vacuum-cleaner.html

THE INSTRUCTIONS Are first you get either double A or triple A batteries and put them into the bottom of the game ,NEXT you put the piranhas into the base.last use the piranhas to try to get to the top of the game with running into obstacles in the way.
-ANNA LEIGH MASON

verify transducer is connected.

Call our customer service group and they will be able to help you out. Our number is 800-633-1468.

Joby @ Humminbird

I need a download manual for a 215 portable piranha max

here is the link to a website that you can download install manual. it is free. it will ask for a survey, you can skip it. click here to go there.

heeere ya go!
Pmax 210 manual

Best of luck
Mike

Wiring should be very straightforward, the connector on the left (looking at the back of the sounder) is the plug for the transducer, the 2 pin plug in the middle is for the power (notch in the plug cord points UP), and the 4 pin connector is for the optional speed and/or temperature sensor. Here is an install manual for your reference:
http://www.humminbird.com/PDF/Piranha1_2_IN.pdf

I found what you are looking for. Go to: http://www.humminbird.com/support/FAQ.aspx?faqid=72

You can download the operating manual.