Altec Lansing 1707C - Module Installation and Mounting; Installing Modules in the Mainframe; Shelf or Rack Mounting; Ventilation

INSTALLING MODULES IN THE
MAINFRAME
For detatled instructions on how to install ad-
ditional input and output modules, you may
order the following operating instruction
manuals from our Order Entrv Department:
P/N 42-02-027720 for the 1781A/AT
Mic/Line Input Modules
P/N 42-02-026653 for the 1780A/AT
Mic/Line Input Modules
P/N 42-02-027721 for the 1783 Line
Out put Module.
1. Remove and save the two screws that
secure the access panel to the top cover.
Refer to figure 1 for details.
2. Plug the input or output module into one
of the six channel positions with the con-
trols facing the rear as shown in Figure 4.
Secure the module with the two screws
provided.
7 Module PCB
A Edge Connector
Praes down firmiy to
Inaure proper seating
with mate connector
on mother board.
ami
OD
Module P d
screws (2)
Figure 4. Module Installation
3. Remove the blank cover panel as shown
in Figure 5. Install the selected connector `
assembly with the screws provided. Plug
the pigtail connector (from the main con-
nector assembly) onto its appropriate male
mating connector on the module's printed
circuit board.
jA Remove two screws
Figure 5. Removal of Blank Cover Panel
4. Onthetopcover isa System Configuration
Label. Use it to indicate the module type,
configuration, and any options for future
reference. Write directly on the label with
a permanent marker. Referto Figure 6 for
a display of this sample label.
INPUT
INPUT
QUTPUT
NONE
MUTE SLAVE
PRIORITV
XFORMER
INPUT
OUTPUT
NONE
MUTE SLAVE
PRIORITV
XFORMER
OUTPUT
NONE
MUTE SLAVE
PRIORITV
XFORMER
FRONT PANEL
NOTE
You may buy connector assemblies to
use for installing additional input/output
modules from ALTEC LANSING.
INPUT
OUTPUT
NONE
MUTE SLAVE
PRIORITY
XFORMER
RVC
INPUT
OUTPUT
NONE
MUTE SLAVE
PRIORITY
XFORMEA
INPUT
OUTPUT
NONE
MUTE SLAVE
PRIORIT Y
XFORMER
Phantom |
Figure 6. System Configuration Label
SHELF OR RACK MOUNTING THE 1707C/
1715C MIXER/POWER AMPLIFIERS
You may shelf mount or rack mount the main-
frame. For shelf or countertop applications,
four rubber feet on the bottom of the chassis
will protect resting surfaces and provide
elevation for air flow underneath the unit. For
rack or cabinet applications, remove the four
rubber feet from the bottom of the chassis.
Then install the unit in the rack with the screws
and shoulder washers provided. The unit must
have 1.75" of blank space both above and
below it.
Ventiliation
The mixer/power amplifier generates minimal
heat during normal use. Although the amount
of generated heat is low, make sure the main-
frame is properly ventilated to prevent an ex-
cessive temperature rise. Because the output
power devices (transistors) are sensitive to
heat, you should not place the amplifier be-
tween other heat generating equipment or
in areas where the ambient temperature ex-
ceeds 50°C (122°F).
lf you mount the mainframe in an equipment
rack or cabinet with other heat producing
6
equipment, provide adequate space between
the units. Otherwise, the equipment may
become too warm.
If a rack or cabinet contains several amplifiers,
you may need to check the ambient air
temperature. To determine the ambient air
temperature, operate the system until the
temperature stabilizes. Measure the ambient
air with a bulb-type thermometer held at the
bottom of the uppermost amplifier.
CAUTION
Dont let the thermometer bulb touch
the metal chassis. The chassis might
be hotter than the ambient air.
CAUTION
If the air temperature exceeds 60*C
(140PF), place the equipment farther
apart or install a blower to provide
air movement within the cabinet.
Make sure you don't block the air-
intake holes located on the bottom of
the chassis or the exhaust holes on
the top cover.