Generally the problem is resulting from a power supply issue on the boat itself. You may read proper DC voltage on your distribution panel, but somewhere in between your panel or battery and your suspect device something is robbing or denying power to your electronics. 

  With some basic tools you may be able to quickly find the problem and avoid a service call or a trip to the shop. The best tool for the job may be a simple test light which you can purchase or easily make yourself. A test light can actually provide better, more reliable information than a digital voltmeter. Here's why:  A test light uses a lot more current than a digital voltmeter. If you have a bad connection the meter may show full system voltage , but the test light may barely glow or not illuminate at all.  Try it yourself it really works!  If your GPS does not turn on probe the power plug and if the bulb does not illuminate the problem is on the boat.

 12 Volt test lights are available at most auto parts stores and are a great addition to your boats tool kit.  A simple way to make a test light is to purchase an anchor light socket with a wired pigtail and choose a 12 or 24 volt bulb as your test light.

 

If you would like to see a large 17 X 22 sample print we have one in our showroom.  We will provide these prints on professional Epson Premium Luster paper either rolled or mounted on acid free foam board ready for framing.  We use Epson UltraChrome inks with a longevity of over 40 years.  We can print them in house.  We can also print on canvas for a very artistic quality.

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