Marantz 2238B Issue

Discussion in 'Marantz Audio' started by TurboKid, May 13, 2018.

  1. TurboKid

    TurboKid AK Subscriber Subscriber

    Messages:
    4
    Location:
    Ann Arbor, MI
    Hello,
    I am new to Audio Karma and I have learned much for reading the discussions on the forums from time to time that I thought it was time to finally join. I'm having an Issue with my Marantz 2238b receiver. It works and produces sound but all the controls such as volume, bass, treble, and mids do not work. They're stuck at the settings that I previously had. Turning any of the dials makes no difference. Wondering if anyone has some insight or had the same probably?
     

     

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  2. Dingman

    Dingman Do you know where your towel is? Subscriber

    Messages:
    2,312
    Location:
    Des Moines, Ia
    Hiyas and welcome.
    Were there any changes to cabling and\or connections before this problem started?

    Check the speaker and tape monitor buttons and make sure they are all correct for your source.
     
  3. TurboKid

    TurboKid AK Subscriber Subscriber

    Messages:
    4
    Location:
    Ann Arbor, MI
    Nothing has been changed and all the connections are properly setup. The A & B speaker switches do work, it will swap between the two sets of speakers that I have hooked up. Right now I use the preamp between the turntable and receiver for volume. But no other knobs work besides power.
     
  4. dcreek

    dcreek Active Member

    Messages:
    124
    Location:
    Vancouver Island
    How long have you owned this receiver?
    Any mods or adjustments prior to its present malfunctioning?
     
  5. TurboKid

    TurboKid AK Subscriber Subscriber

    Messages:
    4
    Location:
    Ann Arbor, MI
    I have owned this receiver for five years so Im not sure if it has been modded, I haven't done anything since I owned it. Its the strangest thing really. I am amazed it still is putting out sound it's like the whole controls component just stopped working but the receiver still puts out sound from the turntable.
     
  6. rBuckner

    rBuckner Luv 2 Restore Subscriber

    Messages:
    9,547
    Location:
    Prescott, Arizona
    Welcome to AK! Are you plugging into the tape / tape monitor inputs? These are labelled in a way that is confusing. I know IN and OUT would have been much better than PLAY and RECORD! If this is done the wrong way around you will hear what is plugged in as well as what the selected function is and I think it bypasses the tone controls maybe?
     

     

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  7. dcreek

    dcreek Active Member

    Messages:
    124
    Location:
    Vancouver Island
    One possible issue: the 2238b has an 'internal' connection for the "main out" and "pre in" option.
    It is possible that the connection is faulty. You can test by bypassing externally with rca 'jumpers'.
    It is a simple (and inexpensive ) test that may solve or shed more light on the issue...
     
  8. TurboKid

    TurboKid AK Subscriber Subscriber

    Messages:
    4
    Location:
    Ann Arbor, MI
    Thank you all for helping me out with this issue. I figured it out and got the situation remedied. After some further investigation indeed rBuckner was right it was plugged into the tape monitor inputs wrong and I reconnected them to the aux inputs and everything is working. So yeah if you have the rca cables in the wrong inputs it does allow you to hear what is plugged in but it does bypass the tone controls.
     
  9. dcreek

    dcreek Active Member

    Messages:
    124
    Location:
    Vancouver Island
    Three cheers for a solution that doesn't cost a dime!!!
     
  10. rBuckner

    rBuckner Luv 2 Restore Subscriber

    Messages:
    9,547
    Location:
    Prescott, Arizona
    and.... :thumbsup::thumbsup::thumbsup: three thumbs up! o_O:idea:
     
  11. Dingman

    Dingman Do you know where your towel is? Subscriber

    Messages:
    2,312
    Location:
    Des Moines, Ia
    Hmmmm. :)
     

     

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