CHAPTER 2: POWER REQUIREMENTS
10
NOTE: For best performance, the AC cable volt-
age drop should not exceed 10 V (5 percent at
230 V). Make sure that even with AC voltage drops that
the voltage always remains within the loudspeaker’s
operating range.
DO NOT RESET CIRCUIT BREAKERS!
CAUTION: In the unlikely event that one of
LEO-M’s circuit breakers trips (the center but-
ton disengages), disconnect the AC power cable and
contact Meyer Sound for repair information. DO NOT
attempt to reset the breaker or reconnect the AC
power cable.
INTELLIGENT AC POWER SUPPLY
LEO-M’s Intelligent AC™ power supply eliminates high
inrush currents with soft-start power up; suppresses high-
voltage transients up to several kilovolts; filters common
mode and differential mode radio frequencies (EMI); and
sustains operation temporarily during low-voltage periods.
Powering on LEO-M
When powering on LEO-M, the following startup events take
place over several seconds.
1. Audio output is muted.
2. The primary fan turns on.
3. The power supply ramps up.
4. On the user panel, the Active LED turns solid green, indi-
cating the loudspeaker is ready to output audio.
CAUTION: If the Active LED does not turn solid
green, or LEO-M does not output audio after
10 seconds, remove AC power immediately and ver-
ify that the voltage is within the required range. If the
problem persists, contact Meyer Sound Technical
Support.
ELECTRICAL SAFETY GUIDELINES
Make sure to observe the following important electrical and
safety guidelines.
■ The powerCON 32 connector should not be engaged or
disengaged when under load or live.
■ LEO-M requires a grounded outlet. Always use a
grounded outlet and plug.
■ Do not use a ground-lifting adapter or cut the AC cable
ground pin.
■ Make sure the AC power cable for the loudspeaker has the
appropriate power plug (on the other end) for the area in
which you will operate the loudspeaker.
■ Do not operate the unit if the power cable is frayed or
broken.
■ Keep all liquids away from LEO-M loudspeakers to avoid
hazards from electrical shock.
■ Use the cable rings (see “Cable Rings” on page 12) on
the rear of the LEO-M cabinet to reduce strain on the AC
power cable (and audio cables). Do not use the cable
rings for any other purpose.
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