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bose awrc-1g wave radio static hum

Discussion in 'Troubleshooting and Repair' started by microlytic, Jul 13, 2009.

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  1. microlytic

    microlytic

    1
    0
    Jul 13, 2009
    My beloved wave radio has started to fail after 5 years of use. I am fairly determined to fix it, as it works fine other than a hum on the left channel only. Even if the volume is 0, the hum continues no matter what function is set. Does anyone know of a source for schematics?

    Thanks in advance,

    Sean
     
  2. ChinaKid

    ChinaKid

    3
    0
    Aug 7, 2009
    Start checking from Audio Amplifier IC

    Hi,
    I am also repairing my own Bose. As for hum and no sound. I think you can try this.

    If you turn on your Bose and no sound then we know troubleshooting should start from Audio amplifier IC. This IC have heatsink screw on it. if you want to know if the Audio Amp really no output, select Aux and put input into the AUX jacks. If still no output it means no output from Audio Amp IC. This Bose Wave radio have Audio amp directly driving both speakers.

    The next step is to open up and check for voltage to the Audio Amp. Careful..!
     
  3. ChinaKid

    ChinaKid

    3
    0
    Aug 7, 2009
    Source of schematics

    Hi,
    Schematics is available at ShareFX.com. I paid 4.99 for 50 schematics.
     
  4. away_of_life85

    away_of_life85

    3
    0
    Aug 6, 2009
    plz
    can nay one give me the pinout of any kind of known bose car cassette
    or specifically i need the pinout for BOSE Car Stereo 9481D
     
  5. lotusnut2

    lotusnut2

    1
    0
    Jan 2, 2011
    I bought a Bose AWRC-1G and the display didn't light up. Opened case and the cable going to the keyboard disconnected. How to I A) get the cover off the keyboard to get access to the connector? or B) shove the cable back into the connector? Thanks.
     
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