Owner's Manual

29
N
0
5805 / N
0
5802 INTEGRATED AMPLIFIER / OWNER’S MANUAL
TROUBLESHOOTING
PROTECTION CIRCUIT FAULTS
If the N
0
5805 / N
0
5802 encounters a potentially damaging condition, its built-in protection circuitry will shut off the amplifier, and its
Front-Panel Display will show one of the error messages listed below. Follow the instructions in the
Solution column to correct the
condition before attempting to use the N
0
5805 / N
0
5802 again.
ERROR MESSAGE PROBLEM SOLUTION
WARNING: DC DETECTED ON
[LEFT/ RIGHT] CHANNEL
The indicated amplifier channel has detected
DC on the output, which can damage speakers.
Disconnect the AC power cord from the mains
power source. Wait 10 seconds and reattach
the power cord. If the error message does not
clear call your Mark Levinson dealer or Mark
Levinson customer service.
WARNING: OVER TEMP [LEFT/ RIGHT] Indicates the amplifier channel has exceeded
thermal limits.
Wait 10 to 15 minutes to let the unit cool. Press
the Standby button. If the error message does
not clear it is likely that your unit does not have
adequate ventilation. Move the amplifier to a
more open location to allow for ventilation.
If that does not correct the problem, call
your Mark Levinson dealer or Mark Levinson
customer service.
WARNING: OVER CURRENT ON
[LEFT/RIGHT] CHANNEL
Indicated amplifier channel has exceeded
current limits.
Disconnect the AC power cord from the mains
power source. Wait 10 seconds and reattach the
power cord. If the error message does not clear
disconnect the power cord again and disconnect
the affected channel’s speaker wire from the
unit. Wait 10 seconds and reattach the AC power
cord. If the error message does not clear call
your Mark Levinson dealer or Mark Levinson
customer service.
If your unit is connected to a home network, use a PC or tablet to access the N
0
5805 / N
0
5802’s GUI via a web browser. On the
right side of the Utility page, you will see a red bell icon with various status indicators, including operating temperature (shown in
degrees Celsius). Note the indicators and open the “Fault History” file. This data may help you or a technician diagnose any amplifier
malfunctions or adverse conditions.
TROUBLESHOOTING