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Instrument cluster LED T10 install not working, dodgy rheostat...

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Tree
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2013/12/23 14:30:52 (permalink)
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Instrument cluster LED T10 install not working, dodgy rheostat...

Tried replacing the cluster bulbs with T10 because my cluster is really really dim, but they're not working, even with rheostat connected. The LEDs work fine as battery tested them. I have suspicions that someone back in JDM-land tampered with the rheostat, but one begs to question why?? I have a replacement rheostat which as 3 wires and (ordered from a UK eBay seller) but my "stock" one only has 2 wires. I guess they somehow combined 3 wires to 2...
And the retarted thing is that my dimmer switch works counter clockwise (dimmer as you turn clockwise).
So without further ado, HELP!!

ex-BEAMS!
https://www.youtube.com/p...PghBHBhC54Ftehx8yO2FsU
#1


5 Replies Related Threads
    just_ace
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    Re: Instrument cluster LED T10 install not working, dodgy rheostat... 2013/12/23 18:00:35 (permalink)
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    Did you try switching the leds around? Iirc they only work one way.
    #2
    dennis the menace
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    Re: Instrument cluster LED T10 install not working, dodgy rheostat... 2013/12/23 18:41:32 (permalink)
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    Yes, LED's are polarity conscious.  Also you'll need to have the dimmer turned to maximum - or remove it and simply connect the two wires together.

    Past-President, MR2 Owners Club Qld
    "There is a fine line between hobby and obsession."
    #3

    Gatesys SW20
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    Re: Instrument cluster LED T10 install not working, dodgy rheostat... 2013/12/23 22:48:45 (permalink)
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    Have them the wrong way around bro,
    turn them 180 degrees,
    if not you may have harmed them putting a straight car battery to them? Maybe,

    Also, your other issue is your rehostat upside down and the knob on the wrong way? perhaps.

    Dont know, should be easy to check if power is going use a test light?
    #4
    Tree
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    Re: Instrument cluster LED T10 install not working, dodgy rheostat... 2013/12/25 01:22:30 (permalink)
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    Yep had a play around a bit more and indeed they are polarity conscious. Removed the little white variable resistor now all is working fine! Seems to have unlocked the power since LEDs apparently have a threshold voltage?
    Such a minor mod with a big reward :)

    ex-BEAMS!
    https://www.youtube.com/p...PghBHBhC54Ftehx8yO2FsU
    #5
    dennis the menace
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    Re: Instrument cluster LED T10 install not working, dodgy rheostat... 2013/12/25 08:03:31 (permalink)
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    Right on both counts - Merry Christmas!

    Past-President, MR2 Owners Club Qld
    "There is a fine line between hobby and obsession."
    #6

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