12v power supply

I finally got around to upgrading the TV in the master stateroom on my 2005 420 Sundancer. The original 2005 TV is not HD and does not work with digital HD signals any more: 1) - OLD TV/DVD REMOVAL - I was able to remove the black back panel of the TV cubby (to which the TV is attached) by...

Hi Everyone. I just purchased a 1989 SeaRay 220 DA. This is the first time I've owned a boat with shore power. The boat is equipped with a 'Professional Mariner' 20amp battery charger / 15amp power supply (old looking). When I flip the breaker labeled 'Converter', you can here it turn on...