Lexicon MV-5, Service Manual

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Troubleshooting & Maintenance
Lexicon
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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. Make sure that the remote control touch screen is in the “LEX”
or “Zone 2” menu 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” or “Zone 2” menu layers.
2. Eliminate obstructions between the remote control and the
front panel IR receiver. When the rear panel IR IN connector is
not in use, 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 MV-5’s IR receiver.
3. Make sure the remote control batteries are correctly inserted
with the proper polarity.
4. 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.
5. If using the optional RF-1 Receiver, ensure that it is properly
connected to the MV-5 rear panel.
The MV-5 is powered on, but there is no audio.
1. Make sure that the source device is powered on, playing audio,
and set to the right output connector.
2. Make sure the volume level is audible. Volume level can be
adjusted with the front panel volume knob or the remote
control VOL
and buttons.
3. 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. 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.
4. Verify that all rear panel input and output connections are
correct.
5. Check the INPUT SETUP menu DIG AUDIO and ANLG AUDIO
parameters to ensure the appropriate audio connector is assigned
to the selected input.
6. Verify that the incoming audio signal is compatible with the input
chosen.
Note: The rear panel input connectors marked S/PDIF INPUTS (RCA
& TOSLINK connectors) are not compatible with MP3 sources.
The Subwoofer(s) distorts frequently.
The likely cause for the subwoofer(s) to distort is either an
incorrectly set output level or the subwoofer high-pass filter is set
too low. Verify that the SUB/LFE LPF setting (subwoofer cross-over
point) is set correctly. If correct, try setting the SUB HPF setting to a
higher value to resolve the issue. Refer to
Section 3: Setup for more
information.
MV-5 PROCESSOR LEXICON
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