Section II. ALIGNMENT

C2, TM 11-6625-564-45

the bracket on which the readout

check the dials for centering of the

mechanism is mounted.

correct numerals ((10) above) and

(12) Apply glyptal (b (2) above) to the

for axial clearance ( (11) above) after

channeling.

setscrews, and tighten the two set-

screws on each dial. If necessary,

(13) Set the POWER switch on the test

channel the readout mechanism to

unit and the POWER switch on the

different frequency settings to make

radio set simulator to OFF.

the setscrews accessible. Always re-

Figure 3-1. Radio set simulator, readout mechanism dial adjustment, test setup..

ALIGNMENT

Section II.

3-4. General

(1) POWER switch to OFF.

(2) XMIT LOAD switch to OFF.

This section contains alignment procedures

(3) TEST SELECT switch to VSWR

for the maintenance kit. Only uhf test gener-

CAL.

ator 1A5 of the radio set simulator requires

(4) VSWR CAL. control to midrange.

alignment.

c. Connect the equipment as shown in fig-

ure 3-2.

3-5. lest Equipment Required for

d. Place test unit POWER switch to RESET

Alignment

ON.

Charger,

PP-1451/U (battery

Battery

e. Place radio set simulator power switch

charger) is the only test equipment required

to RESET ON.

for alignment of the uhf test generator. All

f. Adjust output of PP-1451/U to 27.5 volts

additional equipment that is required is part of

dc.

the maintenance kit.

Note: If necessary, the procedure given in g below,

adjust radio set simulator VSWR CAL. control to keep

3-6. Uhf lest Generator Alignment

the needle of the meter on the front panel of the radio

set simulator in approximate center of the meter scales.

(fig. 3-2)

a. Remove radio set simulator dust cover

g. In the following order, adjust coil L1, ca-

and disassemble until uhf. test generator is

pacitor C10, capacitor C15, and capacitor C19

accessible. Set the switches on the front

(fig. 2-4) for maximum power output at indi-

panel of the test unit as follows:

cated on the meter on the radio set simulator.

Repeat these adjustments several times

(1) POWER switch to OFF.

starting with coil L1 each time.

SELECT switch to

(2) FUNCTION

h. Place test unit POWER switch and radio

OFF.

set simulator POWER switch to OFF. Dis-

b. Set the controls and switches on the front

connect all cables.

panel of the radio simulator as follows: