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 SB 740-91-01
Step
Setting and Instructions
Normal Indication
13
(con't)
(d) Press and hold "PNL TEST"
switch.
(e) Turn "ALM VOL" fully clockwise.
Verify the volume increases as
control is turned.
(f) Turn "ALM VOL" fully counter-
Verify the volume decreases as
clockwise.
the control is turned.
(g) Press "PNL TEST".
Verify the alarm is off and all
LED's except PWR are not lit.
14 Voile Communication Test
(a) The test shall require two
operators.
(b) Connect headset (H-161 A/U or
equivalent) to J9 and Jll on
BCU. (Long cord with yellow
band goes to Jll).
(c) Connect handset (H-189/GR or
equivalent to J4 on BCU.
(d) Both operators shall select
channel 1.
(e) Operator with headset shall
Operator with handset shall verify
depress push to talk switch
that the voice signal can be heard
to "RAD" position and hold.
in his own earphones. He shall
He shall transmit a voice
also verify that the perceived
message.
volume may be adjusted with the
volume control provided on the
BCU.
(f) Perform step e for CHAN 2 and
GDU channels.
(g) Perform step e for GDU channel.
(h) Repeat steps d through f inter-
changing the role of speaker
and listener between the two
operators.
Change 1 B -130.11
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