Note:
Best
operational
results are obtained
at the lowest acceptable volume setting.
4.02
To answer an incoming call using speakerphone,
depress ON OR QUIET button on transmitter.
Ringing is tripped and system is automatically
connected to the line through the loudspeaker set.
4.03
To disable the transmitter when it is desired
not to transmit conversation in the room to
a distant party.
{1) Depress ON OR QUIET button to full extent
of its travel and hold down during entire
time transmitter is to be disabled.
Note:
With transmitter disabled, conversation
will not be transmitted to the distant party,
however, the distant party can still be heard
over the loudspeaker.
(2)
After private conversation is completed and
it is desired to transmit to the distant party
again, release ON OR QUIET button. System
is now restored to full hands-free capability.
4.04
To terminate a call on speakerphone, depress
OFF button on transmitter. ON lamp will
extinguish, and speakerphone system will be restored
to the OFF condition.
4.05
To transfer from handset to speakerphone
operation.
(1) Depress and hold ON OR QUIET button of
transmitter.
(2)
Return handset to mounting, and release
ON OR QUIET button.
(3) Adjust volume as required.
4.06
To transfer from speakerphone to handset
operation, lift handset which will automatically
turn off speakerphone.
5.
MAINTENANCE
Remove power from 4A speakerphone
system b e f or e attempting any
mainte nance of s p e a k e r p h o n e
components. Observe procedures in
paragraph 3.04.
ISS 5, SECTION 512-700-100
A. Tests and Adjustments
5.01
When system is installed or maintenance is
performed on any component, make the
following tests.
(1)
Place a speakerphone call to the test desk.
Note:
Excessively loud TOUCH-TONE signals
will result at loudspeaker output during dialing
if connections of IT and IR leads are reversed
in the telephone set. Speakerphone test call
should verify that TOUCH-TONE signals are
not excessively loud.
(2)
Adjust loudspeaker volume to moderately
loud
I
isteni ng level.
(3) Have test center repeat the question "In
what suburb does Joe live?" several times.
(
4) If clipping is detected in the sentence,
particularly in the first b in
suburb
and
the t in
what,
increase the distance between
the transmitter and loudspeaker set. If condition
still exists, see paragraph
5.02.
(5)
Repeat this test at a high listening level by
turning the volume control to maximum
volume.
5.02
An alternate loudspeaker connection is
provided in each 108AA loudspeaker to
compensate for room conditions which cause
voice-switching during reception.
The effect of
voice-switching is to clip portions of the incoming
speech. To compensate for this condition, proceed
as follows.
(1)
Remove cover of 108AA loudspeaker to
access terminal strip (paragraph
5.06).
(2)
Move red loudspeaker lead from terminal
29
to terminal
32.
Note:
Use care when locating spade tip lead
on terminal so as not to contact adjacent circuit
paths.
5.03
If voice-switching is caused by external
telephone audible signaling devices; proceed
as follows.
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BSP S12-700-100-i05_1979-Q4-Q9.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 16,2012 23:01:16
