Owner's Manual

Troubleshooting & Maintenance Lexicon
6-2
TROUBLESHOOTING
The MC-12HD does not power on.
1. Make sure the rear panel power switch is set to the I (“on”)
position.
2. Attempt to power on the MC-12HD 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 MC-12HD 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 MC-12HD.
The MC-12HD is powered on, but there is no audio.
1. Examine the audio cables to ensure a good connection
between the source and the MC-12HD, and the MC-12HD and
all associated power amplifiers.
2. Make sure all associated power amplifiers are powered on.
3. Make sure the MC-12HD is receiving an audio signal. To do
this, follow the instructions that begin on page 2-21 to open
the STATUS menu for the current input source.
4. Make sure the audio is not muted. The message “MUTE ON” or
“FULL MUTE ON” appears in the on-screen and front panel
displays when the audio is muted. To deactivate mute, press the
Mute button or adjust the volume level.
5. Check the INPUT SETUP menu HDMI IN, DIGITAL IN, and
ANALOG IN parameters to ensure the appropriate audio
connector is assigned to the selected input.
The relationship between the HDMI inputs and analog and dig-
ital outputs depends on the settings of the DIGITAL IN parame-
ter and the HDMI IN parameter. Refer to the table on page 3-8
for assigning HDMI audio.
• When HDMI IN is set to NONE and DIGITAL IN is set to
HDMI AUDIO, then the COAX-1 connector is automatically
assigned to DIGITAL IN. This is in place of any previously
assigned HDMI connector. Neither audio nor video will be
available on the HDMI output.
• When HDMI IN is set to one of the HDMI connectors and
DIGITAL IN is set to a parameter other than HDMI AUDIO,
then both HDMI audio and video are active on the HDMI
output connector.
6. The associated source device may not incorporate HDCP (High-
bandwidth Digital Content Protection) encryption. HDCP is a
copy protection technology inccorporating an encryption and
authentication scheme to protect certain digital audio and
video content from being copied as it travels across DVI or
HDMI connections. Since the MC-12HD supports HDCP,
associated equipment connected via HDMI or DVI (Digital
Visual Interface) must also support HDCP. Check your manufac-
turer user guide to confirm HDCP compatibility.