TM 11-6625-2709-40
Troubleshooting
ChartContinued
2-8.
Probable trouble
Proper
for improper
Correction
Procedure
Step
indication
indication
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
Set the megahertz
37
(MHz) lamps B and C
and kilohertz se-
should light, COMM
lectors to 123.00.
lamp should light.
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
Set the megahertz
38
(MHz) lamps B and D
and kilohertz se-
should light. COMM
lectors to 124.00.
lamp should light.
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
Set the megahertz
39
(MHz) lamps C and D
and kilohertz se-
should light. COMM
lectors to 125.00.
lamp should light.
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
Set the megahertz
40
(MHz) lamps C and E
and kilohertz se-
should light. COMM
lectors to 126.00.
lamp should light.
RMI card should fol-
a. Align the COMPASS
a. COMPASS SIMULATOR
Rotate the COM-
41
low rotation of COM-
out of alignment.
SIMULATOR as de-
PASS SIMULA-
PASS SIMULATOR.
scribed in paragraph
TOR from N (0
RMI card should in-
3-10.
degree) to E (90
dicate within 1 degree
degrees).
b. Defective RMI.
of COMPASS SIMU-
b. Troubleshoot the RMI
as described in TM 11-
LATOR when RMI is
5826-211-50.
tapped lightly on the
bezel.
c. Defective RMI cir-
c. Refer to figure 4-12 and
cuitry in the test set.
make continuity checks
on the RMI circuitry
in test set.
RMI needle number 1
42
Rotate the COM-
Defective RMI.
Troubleshoot the RMI as
described in TM 11-5826-
should indicate 180
PASS SIMULA-
2 degrees, and stay
211-50.
TOR needle one
at this position as
complete revol-
ution (360
the COMPASS SIMU-
degrees).
LATOR is rotated.
43
Output meter con-
Refer to figure 4-12
If output meter does not
Output meter should
nected to audio
and make continuity
indicate 100 15 milli-
indicate 100 15
jacks Fig 4-5.
watts, PHONE Jack J3, or
checks of the circuit
milliwatts.
switch S7 Is defective.
comprised of J3 and S7
to isolate the trouble.
2-22
Change 1
