Pioneer VSX-421 Factory Reset

  1. Put unit into standby
  2. Hold down the "Band" button on the front of the unit whilst pressing and holding standby.
  3. When you see "RESET?" appear in the display, press AUTO SURROUND/STREAM DIRECT
  4. OK? Will show in the display
  5. Press ALC/STANDARD SURR to confirm
  6. OK appears in the display to confirm a reset.