TM 11-5826-225-35
(2) Range switch to 190-400.
3-11. Function and Range Switch Centering
Adjustments
(3) TUNE control for 300 kc on the FRE-
a. Obtain access to the rear of the gear train
QUENCY indicator.
assembly of the receiver as follows:
(4) BFO-OFF switch to OFF.
.
(1) Remove the two outside, rearmost
e. Loosen the locknut on resistor Rlll (fig.
screws on the top of the chassis.
2-8) on the receiver, and rotate Rlll fully
(2) Remove the two rearmost screws on
clockwise.
the bottom of the chassis.
f. Rotate the TUNE control on the control
(3) Swing out the rear of the chassis to
unit while observing the operation of the gear
the right, as viewed from the front
train connected to the sections of capacitor
of the receiver.
cl (fig. 2-8).
b. Connect the equipment as shown in figure
g. Adjust R111 counterclockwise until the
2-2. It is not necessary to connect the signal
gear train overshoots the new proper position
generator, audio output meter, or headset.
and reverses its direction to correct for the
overshoot. Adjust R111 until this effect is
c. Set the switches on the control unit as
small but still noticeable.
follows :
(1) Function switch to ANT.
h. Tighten the locknut on R111, and replace
the cover on the gear train assembly.
(2) Range switch to 400-350.
Figure 3-3. RF balance adjustment test setup.
3-20 Change 1
Previous Page
