NPS200 Known Issues  
 
  • Failed Main Power Supply Capacitors
    The eight original-style "Aero-M" electrolytic capacitors mounted on the central power supply circuit board are crap. They cannot handle normal power supply ripple currents well, especially in 50-Hz Mains environment. They overheat and fail, leaking electrolyte paste onto the circuit board and causing the bridge rectifiers to fail.
    Solution
    Replace them with good-quality parts immediately.