SECTION
512-700-100
(1) Place audible signaling devices away from
transmitter unit, if possible.
(2) Lower volume of audible signaling devices
to level that will not cause voice-switching
feature to operate.
(3) In tall audible signal cutoff using the RING
CUTOFF or AUX RELAY option as needed.
Use the leads to common signal control and
common ringer or buzzer circuit for this cutoff
feature (Fig. 10).
5.04
If speakerphone fails to operate properly,
refer to Table A for trouble analysis.
B.
Cleaning
5.05
Clean plastic covers and housings with water
dampened KS-2423 cloth or equivalent. Do
not use scouring powders or cleaners.
C.
Removal of Plastic Parts
Do not attempt any changes or repairs
to either the 680-type transmitter or
108-type loudspeaker set other than
to replace the loudspeaker set mounting
cord o r the respective plastic
parts for either the transmitter
or loudspeaker set.
5.06
The plastic housing on the 108-type loudspeaker
set is held in place by two screws located
on the bottom of the set. To remove the plastic
housing, remove the two screws from the bottom
of the set and slide the cover off the chassis (Fig.
4).
Page
10
Note:
Do not remove the circuit board from
the chassis.
5.07
The plastic covers on the 680-type transmitter
snap into place. First, remove the stationary
cover by squeezing with fingers on the front and
back surface and lifting gently.
Second, pry up
the rocker cover lifting along the edge adjacent to
the thumb wheel.
The loudspeaker set and transmitter
are designed so that color significant
components can be easily changed.
In order to reduce shelf inventory it
is suggested that the kits listed
in paragraph 2.08 be stoc ked
instead of extra loudspeaker sets
and transmitters.
D.
Change of Loudspeaker Set Card
5.08 First remove housing as in paragraph 5.06.
Two of the mounting cord leads are secured
individually, the rest are permanently connected
to plastic wafer strips (see Fig. 4).
Loosen, but
do not remove screws that secure individual leads
and wafer strips.
Do not attempt to remove
spade tips from wafer strips.
Next remove
the screw that fastens the stay band of the cord.
Slide the spade tips and wafers through the hole
in the bottom of the plastic chassis. To install
the new cord, reverse the procedures.
Note:
Be careful not to damage the circuit
board, particularly the flexible areas of the
bends.
BSP 512-700-100-i05_1979-Q4-10.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 16, 2012 23:01:16
