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Operation
IMPORTANT:
Before plugging the amplifier into an AC outlet, turn all volume
controls to their full counterclockwise positions and all other controls to their
reference position.
PEAK LEVEL
The PEAK LEVEL LED illuminates whenever the speaker output signal level
approaches its maximum level. This indicator is used when setting volume levels.
Maximum output level is achieved when the PEAK LEVEL indicator flashes
intermittently on loud peaks of the input signal. If the indicator illuminates steadily,
the output signal volume is set too high and distortion is occurring. Decrease the
volume control for the appropriate input until the indicator flashes only
intermittently.
PAGE VOLUME
This control adjusts the level of the telephone page output. A reference level setting
position is provided with this control. When set to this position, the output level of
the page should be optimally loud without distortion. Further adjustment can be
made using the PEAK LEVEL indicator, as described above.
MUSIC VOLUME
This control adjusts the level of the background music output. No reference level
setting position is provided. The background music level should be set to an
acceptable level without overdriving the system. When adjusting this level, use the
PEAK LEVEL indicator, as described above.
NIGHT BELL
This control adjusts the level of the night bell tone output. No reference level setting
position is provided. The night bell level should be set to the customer's satisfaction.
When adjusting this level, the PEAK LEVEL indicator should be used to ensure that
the amplifier signal is not distorted.
LO-CUT SWITCH
Set the LO-CUT switch to the LO-CUT position for optimum speech reproduction
and to reduce unnecessary low frequencies.
TONE
Use the TONE control to optimize the tonal balance of the amplifier output.
Indicator
Controls
