From Hobby to Professional

Tag: engineering

  • AOR AR-3000 Troubleshooting – PLL error

    AOR AR-3000 Troubleshooting – PLL error

    —

    by

    Alfred But
    in

    The Problem My AR3000 has been in occasional use for 30+ years. Several months ago it failed to start. Pushing the power button resulted in no sound and the icon “PLL ERR” showed up in the LCD screen. Diagnosis and Repair I had the gut feeling that the problem was due to faulty electrolytic capacitors.…