Danger!
4.No audio and the front panel indicator LED is lit at full brightness.
•The Nº33H is powered on, but is not passing a signal. Power the Nº33H off with the ~ac mains relay switch, then examine the signal cables to ensure a solid connec- tion between the Nº33H and the associated preamplifier and loudspeakers.
Power the Nº33H off with the ~ac mains relay switch before touching the loudspeaker wires.
5.The Nº33H keeps powering off.
•A fault condition may be present at the input (for exam- ple, a DC signal from the preamplifier) or the output (for example,
a.Power the Nº33H off with the rear panel ~ac mains relay switch.
b.Disconnect the input signal and loudspeaker wires.
c.Wait 10 seconds.
d.Power the Nº33H on with the ~ac mains relay switch.
If the Nº33H powers on without entering standby, a fault
condition is present at the input or the output. To isolate 21 the problem:
a.Power the Nº33H off with the ~ac mains relay switch.
b.Reconnect the loudspeaker wires.
c.Power the Nº33H on with the ~ac mains relay switch.
If the Nº33H powers on into standby, the fault condition is present at the input. If not, the fault condition is pres- ent at the output.
6.If all else fails...
•Power cycle the Nº33H with the rear panel ~ac mains relay switch, waiting at least 10 seconds between powering the Nº33H off and on.
•Contact an authorized Mark Levinson dealer.
