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I have owned 3 Carver magnetic field power amps in the last 15 years and every one has developed the same problem - one channel cutting out at low and moderate volume ranges. Twisting the volume control back and forth solves the problem temporarily. It seems to this only while in the tuner mode of operation (or maybe it's just that I never listen to CD's or DVD's at low volume :) Any solutions or suggestions greatly appreciated - Leo

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  • dsnr Sep 16, 2008

    This is the receiver model MXR 130

  • dtaylor91 May 11, 2010

    Hi, which model Carver are we talking about? One of the receivers?

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Ok, the MXR-130 has four power resistors on the tuner board that get EXTREMELY hot. The power connector for the tuner board is right under those resistors. The heat, constant expansion and contraction, and tarnish from heat may have worked the connector partially loose, or started some corrosion. 
If you look through the top of the receiver, you'll see a big board that fills up most of the right side. That's the tuner. At the bottom (or front) left corner of that board, you'll se the resistors and connector. If it's like every other MXR 130 I've seen, it'll be noticeable that the board is quite toasted in that spot.
Cleaning that connector, and making sure it is seated firmly, may solve the problem. If not, let me know.

Posted on Sep 17, 2008

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