Mark Levinson N 51 - Manual (Page 93)

5-1
Troubleshooting & Maintenance
5
Troubleshooting
Incorrect operation is sometimes mistaken for malfunction. If problems
occur, see this section for troubleshooting information. If problems
persist, contact your Mark Levinson dealer.
No Power 1. Examine the power cord to ensure that it is connected to both the
~ac mains connector and an electrical outlet.
2. Make sure the Nº51 is powered on with the power button.
3. Make sure the Nº51 is not in standby.
4. Make sure display intensity has not been set to off (0%), deactivating
the front panel display.
5. Examine the electrical circuit breaker to ensure that power is being
supplied to the electrical outlet to which the Nº51 is connected.
6. Make sure that you are using the properly rated power cord for your area/
country.
No Remote
Control Operation
1. Eliminate obstructions between the remote control IR transmitter and
the front panel display IR receiver/transmitter.
2. Make sure the IR input connector is not being used.
3. Make sure the remote control IR transmitter LED lights when remote
control buttons are pressed, indicating that IR signals are being
transmitted.
4. Make sure the remote control is positioned within 17 feet (5m) of the
front panel display IR receiver/transmitter. If the Nº51 is placed inside
a glass cabinet, tinted glass will reduce the remote control range.
5. Make sure the remote control signal is being received at the front
panel display IR receiver/transmitter at a reasonable angle.
6. Make sure the front panel display IR receiver/transmitter is not
exposed to strong sunlight, halogen light, or fluorescent light. This
can cause IR reception to become unreliable.
7. Replace the remote control batteries.