Pioneer VSX-D411 Service Manual page 65

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7.1.3 PROTECTION CIRCUIT
1. DC abnormal detection
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2. Overload detection
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It processes more preferentially than overload detection.
When detected DC abnormal, A.MUTE* is on
and speaker relay is off, then flash
"AMP_ERR" on display.
↓
An unusual state continues for 3 seconds.
↓ continuation
A power supply is shut off.
↓
The power key cannot be effective for 60 seconds
If the AC plug is pulled off within 60 sec, and then it is plugged in again, the unit will be reset for 60 se
When detected overload, A.MUTE* is on and
speaker relay is off, then flash
"OVERLOAD" on display.
↓
An unusual state continues for 3 seconds.
↓ continuation
A power supply is shut off.
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*A.MUTE : Audio mute command
↓ return
A program is performed from the
beginning.
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↓ return
A power supply is shut off even if it
returns.
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