TM 11-6625-62240
Control settings
Step
No.
Performance standard
Test procedure
Test equipment
Equipment under test
will be painted or polished
with abrasives.
b. Screws, bolts, and nuts
b. Inspect all controls and
w i l l b e t i g h t ; none
mechanical assemblies
missing.
for loose or missing
screws, bolts, and nuts.
c. No loose parts or dam-
c. Inspect all jacks, re-
ceptacles, fuseholders,
age. No missing parts.
and meter for loose-
ness, damage, or miss-
ing parts.
a. Controls and switches
a. Rotate all rotary switches
2
None
____
Controls and switches may be
will rotate freely, with-
and controls throughout
in any position.
out binding or exces-
limits of travel.
sive looseness
b. Operate all toggle
b. S w i t c h e s will operate
properly.
switches.
NOTE
CW KEY and KEY switches
are spring-loaded in down
position and should return
to center positions when re-
leased.
Test procedure column of c below and illustrated
3-12. Test Harness, Radio Set AN/URM-157
in figure 35.
Continuity and Short-Circuit Tests
(2) T h e t e s t u n i t i s t e s t e d w i t h n o p o w e r
a. Test Equipment and Materials. M u l t i m e t e r
applied.
ME-26B/U.
( 3 ) Remove the control unit from the test
u n i t and disconnect cable W5 from the control
b. Test Connections and Conditions.
unit. Make applicable resistance measurements at
(1) M a k e t e s t c o n n e c t i o n s a s s p e c i f i e d i n
the free end of cable W5.
c. P r o c e d u r e .
.
Control settings
Step
Performance standard
Equipment under test
Test procedure
Test equipment
a. 714E-1--714E-2/3
Connect test leads of ME-ME-26B/U must indicate
a. FUNCTION
1
zero resistance for all
switch: 714E-2/3.
26B/U, in turn, to each
switch :
of the following points:
points listed in this step.
OHMS.
b. 300 AUDIO LOAD
b. RANGE
From
To
switch : OUT.
W5-A
J1-32
switch: RX1.
KEY switch: center.
W5-B
J1-33
c. KEY INTLK switch:
W5-C
J1-34
NORMAL.
W5-D
J1-35
e. TUNE POWER switch :
W5-E
J1-36
normal.
W5-F
J1-38
f. CW KEY switch:
W5-G
J1-39
center.
W5-H
J1-40
9. AC switch: ON.
W5-J
J1-41
h. 618T-2--OFF--618T-3
W5-K
J1-45
switch : 618T-3.
W5-L
J1-46
i. DC POWER circuit
W5-M
J1-47
breaker: ON.
W5-N
J1-48
W5-P
J1-49
W5-R
J1-50
W5-S
J1-51
W5-T
J1-52
W5-V
J1-25
W5-i
J1-24
W5-q
J1-55
3-9
