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Old School Electronics - need help

Discussion in 'KS/MO- Tornado Alley Cruisers' started by trainrech, Jul 16, 2005.

  1. trainrech

    trainrech

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    I purchased a Marantz 2230 receiver (1973 vintage) this morning and the left channel is dead. Anyone into old school electronics who might know how to look for the problem? I have the schematics for the power amplifier circuit, just not sure where/how to begin.
     
  2. 66fj40x2

    66fj40x2

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    My step-dad is. He's prolly still got parts in the garage from the 70's to fix tha dang thing! I'll PM his email to you.

    :edit: his email recently changed so I'll send it as soon as I get it :doh:
     
    Last edited: Jul 16, 2005
  3. Bob_Garrett

    Bob_Garrett

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    It may have a bad power amplifier transistor. I used to have a Sansui of about that same vintage and the ones on it would fail every couple of years. Generally, there are a pair for each channel. If one is bad, you'll need to replace both, preferably with a matched set (if they're still available).

    Bob