8
9
Like every other power amplifier the M2 is intended for use with ONE source only.
Therfore the use of the M2 in DIGM mode with XLR-CI input is safe and easy, OR
the M2 is used in a traditional Pre / Power-Amplifier constellation with XLR- or
RCA-input. The M2 allows more exotic combinations, however, special attention is
required to avoid damages due to excessive power.
Exclusion of liability: B.M.C. Audio does not accept any liability for
damages caused by using a fixed output level source with the M2 in
traditional power-amplifier mode.
It is recommended connecting a fixed output level source with the XLR-CI input
exclusively. A variable preamp output is the preferred source for XLR and RCA
input.
The logic circuit of the M2 is designed in such a way that the XLR-CI input is
activated only when an optical DIGM signal is present. Thus, the XLR-CI input is
protected against accidental maximum amplification caused by the absence of an
optical DIGM signal.
The use of the M2 in a traditional Pre- / Power-Amplifier setting is as safe as any
other Pre- / Power-Amplifier. Just for mixed operation, however, special attention
is required.
Whenever you suspect a malfunction of the unit, please first check the
following list of possible causes before contacting your local HiFi dealer or the
B.M.C. Audio service.
No Operation or Display
• Check that the AC-power cable is plugged in.
• Make sure that the wall outlet is live.
• Check the position of the power switch.
ERROR displayed
• An internal error occured. Please switch off the unit, wait at least 1 minute,
and switch it on again. If the same error occures again, switch off the unit
and contact your HiFi dealer or B.M.C. Audio service centre.
Music playback much too loud
• The M2 probably is in Power Amplifier Mode, but connected to a fixed level
output source. (Please read page 8.)
No music playback
• Check the interconnections of the audio system
• Check the input selection and volume level is set correctly.
• The XLR-CI input cannot be selected if there is no optical DIGM signal present.
• When the M2 is in DIGM mode, please check if an optical DIGM signal is
present, and whether the volume settings are correct or the unit is set to MUTE.
Remote control not working
• The M2 has no remote control receiver. (See page 13.)
Note: The micro-computer inside the M2 may have a "hang-up" due to
electrostatic discharge or other voltage peaks. If you experience such a "hang-
up", turn the unit off, and wait for about 1 minute before turning it on again.
Maintainance
• M2 requires no user maintainance.
• Clean the unit with a dry micro-fiber cloth only.
• Take special care not to scratch the acrylic window.
Service
In case you have to contact the B.M.C. Audio Service Centre, please prepare
the following information:
• Model-name, serial number and date of purchase.
• Name, tel. and address of the dealer.
• Precise description of the malfunction.
Possible Maloperations
Troubleshooting