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Thread: pioneer aux in help

  1. #1
    Constant Bitrate
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    Post pioneer aux in help

    I am about to do the aux in hack for my pioneer DEHP4300R. I have found the diagrams from searching but there are 2 different schematics. On one diagram the pin on the middle row is used for the common ground/left channel -. But on the other it is used for left channel +. Which diagram is correct since I read that some people were having problems with distortion and the input being too quiet. [img]null[/img]

  2. #2
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    Talking

    The 2nd pic is correct....the ground for Left is on the top not the middle....have tried it on the DEH-P3150....its a little bit softer and the rear speakers seems not to be working...other than that ...it should be fine...

    1st row R+, R-, L-
    2nd row L+

  3. #3
    FLAC Mastero's Avatar
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    hey i have used the top pic for my Pioneer 8250 and it works like a gem ... no distortion what soever also no volume drop ..

    So i guess i vote for the top pic..


    Mastero

    matter of fact the both are correct its just the qus of polarity..


  4. #4
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    someone posted the circuit diagram of the CD-RB20 before...

    there are some amplification within the CD-RB20 for the AUX in....that should be the reason why the volume is softer

    normally would hook up to the headphone output(instead of lineout) from the source...this way the "pre-amp" circuit is not really required....

    now still trying to find out what is the required p-p voltage before distortion....

  5. #5
    Maximum Bitrate MikeHunt79's Avatar
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    sockman: this might help. from the crutchfield website (goto the pioneer cd-rb 10, then detailed info)

    "The device connected to the RCA ins must either have an output voltage of 1 volt or less OR have a volume control so that its output can be lowered. Without this this unit will distort and/ or be damaged"

    the link might help if it works

    http://www.crutchfield.com/cgi-bin/S...fo&i=130CDRB10

    I suspect they mean 1volt rms, but you never know, it might be peak2peak. Let me know how your tests go, as i also want to get my input levels perfect

  6. #6
    Variable Bitrate
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    Are there only 3 pictures in this post cause on my screen the one with the male and female jack are at the top and it looks like there is another image but it dont load.
    Also which one should i go by cause some people are picking the top one and other one.
    http://austmp3car.tk

  7. #7
    Variable Bitrate
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    Can someone tell me which one is the right one. Thanks
    http://austmp3car.tk

  8. #8
    Variable Bitrate spud42's Avatar
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    the bottom one is right , but check the polarity on the left channel
    as it could be reversed.......
    Volvo V40 Phase 2 2002. T4 turbo upgrade.... currently no mp3 or carputer..... researching options

  9. #9
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    MikeHunt: the input (to CD-RBx0) should be 1v p-p "standard" RCA line out??...the problem now is the output from CD-RBx0 to the HU...maybe we need someone with the unit to give us the info....

    tried using the headphone output...doesn't really change the volume level....

    i'm guessing 4v p-p for the output from (CDRBx0)....

  10. #10
    Variable Bitrate
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    Thanks a lot spud42. Hey have you sent that cable yet man.
    Thanks
    http://austmp3car.tk

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