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power supply problems to stereo

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  • 12-02-2013 5:28pm
    #1
    mrgriswold
    Registered Users Posts: 28 ✭


    Hello all....
    Just checking out the van for the start of the season, noticed my stereo wasnt working, ive taken it out and what i have at the connector block (excluding all the audio stuff) is three wires, an earth and two more.. i have 12v when i test either of the other two with that earth.. in my limited knowledge this sounds right so far. however when i plug back in the stereo and test i get roughly 3v and stereo not working, i have got a lend of a brand new stereo and the same results... anybody got any ideas. i'v checked as many fuses as i can find. thanks :confused::confused:


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    #2
    Aidan_M_M
    Registered Users Posts: 2,213 ✭✭✭Aidan_M_M


    bad connection , or bad earth .
    ~Generally the ones you need are the red , yellow , and black. Continuous 12v, ignition switched 12v , and earth.


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    #3
    mrgriswold
    Registered Users Posts: 28 ✭mrgriswold


    thanks aidan,

    Ran a temp earth from back of unit to earth point in engine bay, no joy!! checked all wires on the loom on the stereo itself and they seem fine on meter.. ah the joys :(


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    #4
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    Check the wiring diagram...anything else on the same circuit?


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    #5
    Aidan_M_M
    Registered Users Posts: 2,213 ✭✭✭Aidan_M_M


    Check the voltage using something LSR as an earth. If the volts drop when you ask them to do something , you've a bad connection. Could be a corroded or burnt fuse even.


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    #6
    mrgriswold
    Registered Users Posts: 28 ✭mrgriswold


    aidan, you've lost me with the lsr bit.:confused:


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    #7
    Aidan_M_M
    Registered Users Posts: 2,213 ✭✭✭Aidan_M_M


    mrgriswold wrote: »
    aidan, you've lost me with the lsr bit.:confused:

    Sorry, fat fingers! Meant to be something ELSE.


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    #8
    mrgriswold
    Registered Users Posts: 28 ✭mrgriswold


    Thanks all for the advice, ran in a temp. supply and got it working. will run in new supply today.:D


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