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 TM 11-6625-623-45
step
Control setting
Test
procedure
Performance
standard
No.
Equipment under test
Test equipment
Measure the resistance be-
Circuit should measure
6
a. FUNCTION
Controls and switches
164 ohms 25.
tween NO. 1 and NO. 2
switch:
may be in any position.
AUDIO IN jacks J5 and
OHMS.
J6.
b. R A N G E
switch:
RX10.
Measure the resistance be-
Circuit should measure
7
Same as step 6.
Same as step 6.
82 ohms 12.
tween AUDIO OUT jack
J4 and GRND jack J13.
Measure the resistance be-
Circuit should measure
8
a. FUNCTION
Same as step 6.
0 ohm.
tween AUDIO OUT
switch:
jack J4 and TEST
OHMS.
POINT jack J3.
b. R A N G E
switch:
RX1.
Capacitor C2 charges until
Measure the resistance
9
a. FUNCTION
Same as step 6.
resistance to ground is
from NO. 1 AUDIO IN
switch:
infinite.
jack J5 to GRND jack
OHMS.
J13.
b. R A N G E
switch:
RX1M.
Measure the voltage to
Circuit should measure
10
a. FUNCTION
a. FUNCTION SELEC-
103 volts dc 5.
ground across the series
switch: +.
TOR switch: TGC
Zener diodes CR3 and
OVERRIDE.
b. Ac power switch ON.
CR4.
b. R A N G E
switch:
300V.
Measure the voltage to
Circuit should measure
11
a. FUNCTION
a. FUNCTION SELEC-
75 volts dc 10.
ground at the center
switch: +.
TOR switch: TGC
arm of R1.
OVERRIDE.
b. R A N G E
b. LEVEL SET R1 po-
switch:
tentiometer: counter-
100V.
clockwise stop.
c. Ac power switch:
ON.
12
Circuit should measure
Same as 11.
Adjust LEVEL SET R1
a. FUNCTION SELEC-
90 volts dc 5.
TOR switch: SET
potentiometer until the
LEVEL.
FUNCTION METER of
b. Ac power switch:
the function test set
ON.
reads + 10. Measure the
voltage to ground at the
center arm of R1.
differential voltmeter
13
Set the differen-
Connect the differential
a. FUNCTION SELEC-
should read 10.000
tial voltmeter
voltmeter between the
TOR switch. 70 K-3
volts dc 0.001.
CALIBRATE WITH
VFO BIAS.
to measure 10
10.000V R4 test points.
b. Ac power switch:
volts dc.
ON.
30
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