yamaha receiver fried when rca cables plugged in

Discussion in 'Wireless & RF Design' started by carsoncity, Jun 20, 2013.

  1. carsoncity

    Thread Starter New Member

    Jun 20, 2013
    1
    0
    My Yamaha AX 700u receiver produced a smell when I plugged in some old rca cables. I assume there was a short. Any ideas on how to start diagnosing this. Am new to this but would like to learn, and not have to throw out a great amp, or pay someone else to fix it.

    Thanks
     
  2. absf

    Senior Member

    Dec 29, 2010
    1,490
    371
    Show us some closed-up pictures of the PCB.... Are there any burnt components? Like some bulging capacitors, darken resistors or blown fuses?

    Do you have a schematic or service manual for your receiver? That would be a plus....

    Allen
     
  3. Ramussons

    Active Member

    May 3, 2013
    557
    92
    As far as I know, RCA cables carry no power, only signals. And shorting of signals cannot "fry" anything! - Unless, the other end of the RCA cable was connected to a "frying" supply.

    Ramesh
     
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