Connect with us

Circuit Help - 12V Boat light control

Discussion in 'Electronic Basics' started by HighFlight, Oct 26, 2003.

Scroll to continue with content
  1. HighFlight

    HighFlight Guest

    I've had some experience with electronics, and can solder quite well, but
    don't have the experience I need for this.

    Situation: My boat (12V) has a light control that is broke. I replaced the
    big components but it still doesn't work correctly. I think some traces are
    possibly bleeding because one button affects other circuits. Eventually,
    nothing works at all. The circuit is ground switching.

    Attempt #1: Prototype of a single circuit...I built the voltage regulator
    just as is on this board with a LM2930T-5. 4004 diode from power to source,
    22uf cap between ground and source pins, and a 220uf cap from output. Then
    I connected a 10Kohm resistor to that. Aft of resistor goes to a simple
    on/off switch instead
    of the flipflop/momentary switch logic. Output of switch goes to gate on
    15N05L mosfet.
    Source to mosfet is ground and drain goes out to fuse and out to the ground
    of the light circuit.

    Needless to say, it doesn't work and I'm sure it's because I'm an idiot.
    Plus, meter reads 10V aft of the capacitor...which confuses me right off the

    Could someone possible make some suggestions. For all I know, I could
    simple use a surface mount on/off switch and get rid of everything else. I
    just don't know what they can take.

    Any help is GREATLY appreciated!


  2. You can start by not posting images to a non-binaries group.


    Chip Shults
    My robotics, space and CGI web page -
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day