Aiwa HS-J202MII screeching sound

Discussion in 'Tech talk' started by JUAN ANDRES MONTIEL DIEZ, Aug 26, 2024.

  1. JUAN ANDRES MONTIEL DIEZ

    JUAN ANDRES MONTIEL DIEZ Active Member

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    I'm going crazy with this issue, after recapping the radio works perfect, clear and powerfull sound. Tape source has an horrible screeching sound, I was reviewing mech earth, caps solders, tape/ radio and Rec/Pb switchs, all seems to be ok, desoldering head's ribbon the issue continue. Recording from radio the sound it's ok. It's like the mic introduce a parasite signal. The screeching is very high, at 0 volume level you can hear it, and at 2 level is almost unbelievable.

    It must be an common issue, I have another donnor unit with the same problem.

    Any Ideas?
     
    Last edited: Aug 27, 2024

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