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MC-12 Setup
3-41
POSITIONING THE MICROPHONES FOR AUTOMATIC CALIBRATION
Proper microphone placement is essential to achieving the desired
automatic calibration results. Microphone placement determines
whether the MC-12 calibrates optimal speaker distances and output
levels for a single listening position, several listening positions in a
single row, or several listening positions in the listening space.
Refer to the microphone placement examples that begin on the
next page to position the microphones for automatic calibration.
Select the microphone placement that best meets the needs of the
listening space.
Message Description Troubleshooting
The microphone detected the calibration
noise signal without error.
•N/A
The MC-12 did not detect the micro-
phone during the silence check.
• Examine microphone input connections to ensure that the microphones are properly con-
nected to the MC-12 and that microphone cable plugs are fully inserted for a solid connection.
• The microphone might be damaged. Contact an authorized Lexicon dealer for assistance.
The MC-12 detected the microphone
during the silence check. However, the
microphone level determined during the
silence check was not confirmed during
the microphone check.
• Examine microphone input connections to ensure that the microphones are properly con-
nected to the MC-12 and that microphone cable plugs are fully inserted for a solid connection.
• The microphones might be positioned too far from the front speakers. Refer to the microphone
placement examples that begin on page 3-42 to confirm that the microphones are appropri-
ately positioned for the microphone check.
• The microphone might be damaged. Contact an authorized Lexicon dealer for assistance.
The microphone level is more than 20dB
below the highest microphone level.
• Examine microphone input connections to ensure that the microphones are properly con-
nected to the MC-12 and that microphone cable plugs are fully inserted for a solid connection.
• The microphones might be positioned too far from the front speakers. Refer to the microphone
placement examples that begin on page 3-42 to confirm that the microphones are appropri-
ately positioned for the microphone check.
• The microphone might be damaged. Contact an authorized Lexicon dealer for assistance.
The microphone level could not be deter-
mined because of excessive room noise in
the listening space.
• Eliminate extraneous noises in the listening space, including conversations, air conditioners,
and sounds that filter in through open doors and windows.
• The microphone might be damaged. Contact an authorized Lexicon dealer for assistance.
(MICROPHONE)
OK
(MICROPHONE)
NOT DETECTED
(MICROPHONE)
SIGNAL TOO LOW
(MICROPHONE)
OUT OF RANGE
(MICROPHONE)
TOO MUCH ROOM NOISE