 | Home > Technical > Wiring of a switch help needed. |
 
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| GSLRO Member Since: 13 May 2012 Location: Tyne and Wear Posts: 499   
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Stuck on a project popped the question on 'In car electronics' section but no response so hoping someone who reviews this section may be able to shed some light (
 ) http://www.defender2.net/forum/topic55452.html
I want to use this switch to turn on/off an interior led strip light, the switch has also a light. It came with a wiring diagram that I can make no sense of any help appreciated.  Click image to enlarge Switches purchased from Amazon https://www.amazon.co.uk/gp/product/B0713T...&psc=1 Thanks in anticipation George Adventure isn't paved! |
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3rd Jul 2017 11:49am |
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it could be a DPST switch with a dependent light, meaning the switch (dis)connects both plus and minus, and the integrated light requires you to connect plus (anode) and minus (kathode) as depicted to be switched on along with your LED lights.| Balvaig Member Since: 19 Feb 2016 Location: Fife Posts: 719  
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Assuming it is an led light in the switch, then power feed positive to anode, earth to cathode. Then positive to lights from 'equipment' anode, earth to cathode. Looks like a double switch which breaks the feed to live and earth.
LEd's require correct polarity to work, and your lights should show the +ve and -ve connections. Hope this is of some help |
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3rd Jul 2017 12:11pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6477 
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***POSSIBLY****
Power cathode - to ground Power anode - to equipment anode Equipment cathode - to 12V supply Equipment anode - to item to be powered Although I'm not sure I would trust a switch without good documentation  1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jul 2017 12:53pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11240 
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I had a look at this when first posted but couldn't make head nor tail of it. The link describes it as a SPST switch but it looks much more like a DPST version.
If it were me, I'd test out the various combinations with a continuity tester to see what's connected to what. Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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3rd Jul 2017 1:23pm |
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| GSLRO Member Since: 13 May 2012 Location: Tyne and Wear Posts: 499
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Thanks for all the replies, Martin that is the interpretation I was hoping for.
So what next, I think I will do a mock up of the system using a 9v battery and led bulb I have lying around just to make sure. When I purchased the switch from amazon I didn't realise it would be coming from China typical  Adventure isn't paved! |
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3rd Jul 2017 1:30pm |
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| GSLRO Member Since: 13 May 2012 Location: Tyne and Wear Posts: 499
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So I did a electric lab mock up as my multi meter had my head battered. The out come was top two terminals power in with the right hand side being positive and left negative.
And the bottom two terminals going to the LED strip lights (+/-) as above, what a  carry on for a non technical bod like me, but the satisfaction of fettling it  Adventure isn't paved! |
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10th Jul 2017 1:10pm |
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