User's Manual

Troubleshooting & Maintenance Lexicon
6-2
TROUBLESHOOTING
The MV-5 does not power on.
1. Make sure the rear-panel power switch is set to the ON
position.
2. Attempt to power on the MV-5 with the front-panel Standby
button and remote control ON button.
3. Examine the power cord to ensure a good connection between
the rear-panel AC input connector and the wall outlet.
4. Check the electrical circuit and breaker.
The remote control does not work.
1. Eliminate obstructions between the remote control and the
front-panel IR receiver. When the MV-5 is not using the rear
panel IR IN connector, the remote control must be in line of
sight with the front-panel IR receiver for proper operation. The
remote control might also become unreliable if strong sunlight
or fluorescent light is shining on the IR receiver.
2. Make sure the remote control batteries are correctly inserted
with the proper polarity.
3. Replace the remote control batteries. When the batteries are
low on power, the remote control enters a low-voltage
condition that prevents it from operating the MV-5.
4. Make sure that the remote control touchscreen is in the “LEX”,
“Zone 2”, or “Tuner” layers. The remote control is a universal
control designed to operate all of the home theater equipment
in your system. In order to control the MV-5, the remote
control must be in the “LEX”, “Zone 2”, or “Tuner” layers.
5. If using the optional RF-1 RF Receiver, ensure that it is properly
connected to the IR port on the MV-5 rear panel.
The MV-5 is powered on, but there is no audio.
1. Make sure the volume level is audible. Volume level can be
increased with the front-panel volume knob or the remote
control VOL  and  buttons.
2. Make sure the audio has not been muted. The message “MUTE
ON” is displayed on the on-screen and front-panel displays
when audio has been muted in the Main Zone or in Zone 2. In
addition, the MUTE button on the front panel lights red when
the Main Zone mute is active and green when the Zone 2 mute
is active. If both Zones are muted, the Mute button lights
amber. To deactivate mute, press the MUTE button or adjust
the volume level.
3. Check the INPUT SETUP menu DIGITAL IN and ANALOG IN
parameters to ensure the appropriate audio connector is assigned
to the selected input.
A humming sound is present in the audio.
1. If a cable TV connection is present, disconnect the cable from
the wall outlet. If this eliminates the humming sound, a ground
loop isolation device is required. Contact your dealer or the
cable provider for assistance.
2. Disconnect components one at a time to isolate the problem.
Once the problem is identified, make sure the associated
component is properly grounded and connected to the same
electrical circuit as the MV-5.
RF interference is present in the audio or video.
1. Make sure the MV-5 is not positioned near unshielded TV or FM
antennas, cable TV decoders and other RF-emitting devices.
2. Replace unshielded cables with shielded cables wherever possible.