Pioneer VSX-C300 Service Manual - Page 52

Protection of the Amplifier Line - amp err

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VSX-C300 7.1.2 Protection of the Amplifier Line 1. Detection of abnormalities in DC circuits This detection has priority over the overload detection and abnormality detection for the fan and thermistor. If an abnormality has been detected, AMUTE is on, RELAY is off, and the "AMP ERR" display is flashing. ↓ Does the abnormality continue for 5 seconds or more? ↓ Yes Power is turned off. ↓ No (recovery) The program restarts from the beginning. 2. Detection of overload This detection has priority over the abnormality detection of the fan and thermistor. If an abnormality has been detected, AMUTE is on, RELAY is off, and the "OVERLOAD" display is flashing. ↓ Does the abnormality continue for 5 seconds or more? ↓ Yes Power is turned off. ↓ No (recovery) Power is turned off even if the unit has achieved recovery. While the unit is recovering from the abnormality, the "OVERLOAD" display continues flashing. 52

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52
VSX-C300
7.1.2 Protection of the Amplifier Line
1. Detection of abnormalities in DC circuits
This detection has priority over the overload detection and abnormality detection
for the fan and thermistor.
If an abnormality has been detected, AMUTE is on, RELAY
is off, and the "AMP ERR" display is flashing.
Does the abnormality continue for 5 seconds or more?
Power is turned off.
Yes
The program restarts from the
beginning.
No (recovery)
↓
↓
↓
2. Detection of overload
This detection has priority over the abnormality detection of the fan and thermistor.
If an abnormality has been detected, AMUTE is on,
RELAY is off, and the "OVERLOAD" display is flashing.
Does the abnormality continue for 5 seconds or more?
Power is turned off.
Yes
Power is turned off even if the unit
has achieved recovery.
No (recovery)
↓
↓
↓
While the unit is recovering from the abnormality, the "OVERLOAD" display continues flashing.