Nr1604 - Protection History Display Mode (2 Of 3) - Marantz NR1604 Model Information

Model Information
Index
1. If no protections have occurred, "No Protect" is
displayed
3. If the last protection was ASO, "ASO" is displayed.
Cause: A short circuit occurred between the speaker terminals, or speakers with an impedance outside the rating were connected. If the power is turned on
during this abnormality, protection is activated after around 5 seconds and the power is turned off.
4. If the last protection incident was DC protection
Cause: DC output of the power amplifier is abnormal.
If the power is turned on without correcting the abnormality, the protection function will work about 5 seconds later and the power supply will be shut off.
5. When the last protection incident was THERMAL(A) or
THERMAL(B) protection, THERMAL A or B is displayed
Cause: The temperature of the heat sink is excessive.
If the power is turned on without correcting the abnormality, the protection function will work about 5 seconds later and the power supply will be shut off.
Caution: These protections may also be activated due to causes such as disconnection of connectors or operations around the
microcomputer.
After viewing the above protection history, press the button "STATUS" to return to the normal display.
Front Panel and Button Locations

NR1604 - Protection History Display Mode (2 of 3)

N
P R
P R
P
P R
O P R O T E
T : A S O
T : D C
R T : T H E R
T : T H E R
HOME
C T
M A L A
M A L B
Clearing the Protection History
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