Denon DRA-100 Service Manual page 23

y Amp protect 1 : Detects abnormalities in the DC output to the speaker output
u Amp protect 2 : Detects AMP power supply abnormalities
4.3 Resetting the protection history
With the protection history displayed, press and hold the "CURSOR d " button for over 5 seconds to clear the protection
history.
After the history is cleared, "No Protection" is displayed.
Protection history is not cleared, even when the set is reset (User Reset).
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