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|  TM
11-5820-919-40-1
Lubricate the O-ring in the cover
5.
KHZ
(S1-S6)
SWITCH
assembly (12) (see table 5-1). Replace
REMOVAL.
the cover assembly (12). Tighten the 8
captive screws (13).
1.
Remove control panel (1)
from
receiver/exciter (para 5-11).
FILTER
REPLACEMENT.
Align the harmonic filter module
1.
Place
control
panel
face
down.
2.
(4) over the receiver/exciter housing
Locate 12 Allen screws (34) which
(8).
3.
fasten rotary switches (27 thru 32).
Carefully plug the module into the
2.
receiver/exciter housing (8), so that
4.
Loosen Allen
screws
(34)
using
the multipin connector A1A2P1 (5) and
appropriate
tool.
jack fit properly.
5.
Locate connectors A1A2J1, J2 (37)
3.
Tighten the
4
captive
screws
(3)
on the module.
and audio filter assembly A1A2 (36).
4.
Reconnect the 2 rf cables (6) A2J1
and A2J2 to the module according to the
6.
Using appropriate tool, loosen and
color code.
remove 2 connector rings (2) and 2 con-
nector washers (38).
5.
Replace the cover assembly (l).
Tighten the 8 captive screws (2).
7.
Slowly separate audio filter assem-
MODULATOR/DEMO
DULATOR
bly A1A2 (36) and control panel circuit
REPLACEMENT.
card assembly (35) from control panel
(1) at the same time, and carefully fold
1.
Align the modulator/demodulator
back.
module (18) over the receiver/exciter
housing (8).
8.
Unsolder and replace necessary
2.
Carefully plug the module into the
pushbutton rotary switches (27 thru 32).
receiver/exciter housing (8) so that the
SB (S7), MODE (S8) AND VOLUME
multipin connector A1A1P1 (20) and jack
fit properly.
(S9) SWITCH REMOVAL.
Tighten the
4
captive
screws
(19)
Remove control panel from
1.
3.
on the module.
receiver/exciter (para 5-11).
4. Reconnect the 4 color-coded rf
Place panel so that the control
2.
cables (17) A1J1, A1J2, A1J3, and A1J4
knob
faces upward.
to the module according to the color
code.
Locate SB switch (6) and MODE
3.
switch (10) knobs on face of panel (l).
5.
Lubricate the O-ring in the cover
assembly (1) (see table 5-1). Replace
the cover assembly (l). Tighten the 8
4.
Locate the 2 Allen screws (5) on
screws (2).
SB switch knob (6).
CONTROL
PANEL
DISASSEMBLY
5.
Loosen
the
setscrews
and
remove
knob.
Procedures for disassembly of the
5-22.
control panel A1A4 consist of removing
6.
Using appropriate wrench, remove
the switches.
remaining nut (4) and washer (3).
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