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Car cd player

Discussion in 'Automotive Electronics' started by madmikejt12, Jun 15, 2007.

  1. madmikejt12

    madmikejt12 New Member

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    I have here a car CD player. However, I am not old enough to drive so havnt got a car! I was wondering if there was an adaptor available to plug it into the mains for power? there is phono out at the back so I would connect my speakers to there

    It needs a 12V supply and the max current is 15A....

    baisically, I want to use a in-car cd player, without the car
     
  2. things

    things New Member

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    yes, you can hook it up outside the car, but i don't know if there is any adapters with the right plug on it? Could you post some pictures of the back and power plug?
     
  3. madmikejt12

    madmikejt12 New Member

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  4. dave

    Dave New Member

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  5. madmikejt12

    madmikejt12 New Member

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    just to confirm, the cd player will only draw whatever current it needs from the player? (unless there is an electrical fault causing the fuse to blow)

    also, the CD player has a 15 amp fuse which suggests it requires a high current, the adaptor only gives a 5A output, does this matter?
     
  6. things

    things New Member

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    well with my cd player, the speakers connect to one one of the plugs inside the big plug on the right. you just have to find the power input and speaker outputs. How many speakers were hooked up to it in the car? 4?
     
  7. madmikejt12

    madmikejt12 New Member

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    i dont know, sorry.... it was my sisters in her old car.... i dont have a car as i'm only 16... my sisters just given it to me for when i get a car (which will probably have a cd player in anyway!!) but i wanted to use it in my room

    i think there where 2 in the front ant 2 in the back.... the phono outputs will work fine wont they? (the speakers are amplified)

    so its just a case of getting the power to it?

    is there a cheaper way of getting a 24V high current supply? or would you reccomend one of those power adaptors?
     
    Last edited: Jun 15, 2007
  8. madmikejt12

    madmikejt12 New Member

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    there are 2 leads with labels on.... a yellow one labelled BATTERY 15A and the other one is red labelled ACC

    there is also a black one (which is next to the red one in the black plug, and in the red plug aswell)
     
  9. things

    things New Member

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    well one or two of the wires are so it turns on when you turn the keys, two goes to the power and if there is one wire with a plug on the end it could be for the power arial (spelt correctly?) if it had one. and then the rest goes to the speakers. i don't really know much more about this one? Hmmm
     
  10. audioguru

    audioguru Well-Known Member Most Helpful Member

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    The phono jacks are labelled "pre-out" so they feed an external amplifier, not speakers.

    The big connectors probably have the connections for four speakers.

    A 12V/5A power supply will probably operate it but the power output will be low before the power supply blows up or severe distortion results.
     
  11. Andy1845c

    Andy1845c Active Member

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    What you want to do should be pretty simple.

    I would help if you had a wiring diagram for it.

    I would guess the red to be power and black to be ground, but I can't be sure.

    Most stereos I have worked with have a:

    Ground
    Power lead thats hot all the time for memory
    Power lead thats hot only with the key on
    Input to dim display when the headlights are on
    somtimes an output to control a power antenna or amp
    and then all your speaker wires - 4 speakers - 2wires each - 8 wires total
     
  12. madmikejt12

    madmikejt12 New Member

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    so even amplified speakers would not work with the phono?

    and if i get the powre correct, ive then got to figure out which 2 wires i need 2 touch to turn it on?

    and the power supply wont last very long?

    is there anything you can reccomend? (apart from a car battery)
     
  13. madmikejt12

    madmikejt12 New Member

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    sorry, replied before the last post.... sorry i do not have a wiring diagram, the wires are in pairs...

    green-green next to each other
    white-white
    purple-purple
    gray-gray
    then blue and white lead and aslo a lose blue lead with a rubber insulator at the end (antenna??) going to the same socket
    the red and black are close to each other and the yellow is on its own

    (this is in the black plug)

    I will try and draught a diagram for you

    are the speaker outputs amplified or not?

    here is where the coloured wires are:
    [​IMG]

    I'm guessing top is speakers, bottom is power?
     
    Last edited: Jun 15, 2007
  14. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Without a wiring diagram then you are just guessing. If one wire is wrong then the CD player will blow up in a cloud of smoke and never work properly again. Good luck.

    Of course it has amplifiers for 4 ohm speakers. They are probably 14W per channel at clipping if the power supply is 13.8VDC. When all four channels are producing 14W each then the CD player heats with about 56W. So the unit draws a max current of about 8.2A for the amplifiers and some more current for the CD player's parts.
     
  15. madmikejt12

    madmikejt12 New Member

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    i dont like the sound of "cloud of smoke" 'electronics' smoke stinks!!! ive had a capacitor explode in an audio amplifyer (too much current i think)

    if I was only using 2 channels (28W) what would the max current be then?

    the power adaptor listed above has a max output of 5A and 60W
     
  16. madmikejt12

    madmikejt12 New Member

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    found some info :) (attatched)

    would this speaker work?
    http://www.maplin.co.uk/module.aspx?ModuleNo=3278&doy=16m6#overview

    I only want low wattage speakers, 2 of these gives 12V

    so, with 2x 6W 8 ohm speakers (lets call that 18W to account for the player and any extra)

    the current drawn from the player is 1.5 amps, correct? or have I done something wrong?
     

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    Last edited: Jun 15, 2007
  17. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Two channels will make 28W of sound power and another 28W of heat. Then the 56W total divided by the 13.8V power supply is a current of 4.1A, plus some more current for the CD player's parts.
    If the power supply is only 12V then the power output and current used are much lower. A fully charged car battery is 13.8V but some are charged at 14.4V.

    The 5A power supply is for appliances, not audio equipment. It might make a very loud buzz or hum due to inadequate filtering.
     
  18. mister_e

    mister_e New Member

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    Looks like a Panasonic radio and Volkswagen/Audi/Mercedes plug adapter to me.

    Anyways, the usual color code for those after market radio is:

    Yellow = Constant 12Volt
    Red = Switched 12 Volt
    Black = Ground
    Blue = Power antenna or external amp remote control (not needed here)
    White = Front Left Speaker
    Grey = Front Right Speaker
    Green = Rear Left Speaker
    Purple = Rear Right Speaker

    HTH

    EDIT: deuh.. i didn't notice your PDF... at least it confirm it's a panasonic :D
     
    Last edited: Jun 15, 2007
  19. madmikejt12

    madmikejt12 New Member

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    Thanks to everyone for your help

    do you have any ideas for power supplies? that is the only thing i need before i can start :(

    also, what is the problem with using the phono out to my speakers? these are my speakers, it would save me buying new speakers..... would i still get a hiss from them??
     
    Last edited: Jun 15, 2007
  20. audioguru

    audioguru Well-Known Member Most Helpful Member

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    The pre-amp outputs on the CD player on the RCA jacks are perfect for driving your amplified speakers. Then any half-decent 12V/2A power supply will power the CD player parts.
     
  21. madmikejt12

    madmikejt12 New Member

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