MC850 Operations Manual Rev F
Page 14
Table of Contents
Top
7.2.1
Status Tab
7.2.1.1
VU Meters and Signal Indicators
The Status tab displays VU meters at the top. These may be set to monitor either the input signal level or
the output signal level of all channels by moving the switch to the left of the meters. Just below the meters
are 8 green lights. These mirror the LEDs on the amplifiers and illuminate when an audio signal is present
on that channel.
7.2.1.2
Trim Level Sliders and Level Entry
Below the VU meters and lights are 9 sliders. These trim the level of each channel. There is also a master
slider that trims all channels simultaneously. The master trim and individual channel trims are additive.
These may be set by either moving the slider with the mouse, entering the level in the box below the slider,
or by using the up/down arrows on the right side of each level box. The level can be adjusted in 0.5 dB
steps.
7.2.1.3
RS-232 Settings
The MC850 Series of amplifiers are also equipped with an RS-232 port for volume control and status. The
RS-232 levels for each channel and the master level set by the RS-232 controller are indicated at the bottom
of the Status Tab page. The Reset RS232 button resets all levels to 0dB. This is provided in the event the
RS-232 controller has failed or gotten out of sync with the amplifier.
7.2.1.4
External Mute LED
This LED indicates the status of the external dry contact mute terminal. When illuminated, the amplifier is
muted.
7.2.1.5
Run/Standby, Identify, and Connection Buttons
On the upper right side of the Status tab there is a Run/Standby button. The text in the button indicates
the amplifier status, and the strip at the bottom appears dark green when in the Standby mode and bright
