TM 11-6625-2709-40
2-8. Troubleshooting Chart - Continued
Probable trouble
Proper
for improper
Correction
Procedure
Step
indication
indication
break is present,
between P2-U and
26
troubleshoot the control
P5-G, or the megahertz
(Cont)
unit as described in
selector in the control
TM-5826-226-34.
unit is defective.
Troubleshoot the control
The megahertz selector
1.0 FREQ SELECT
27
Set the megahertz
unit as described in TM
in the control unit is
(MHz) lamps B and
and kilohertz se-
11-5826-226-34.
defective.
C should light.
lectcms to 113.00.
Same as step 27 above.
1.0 FREQ SELECT
Same as step 27 above.
28
Set the megahertz
(MHz) lamps B and
and kilohertz se-
D should light.
lectors to 114.00.
Same as step 27 above.
Same as step 27 above.
1.0 FREQ SELECT
29
Set the megahertz
(MHz) lamps C and
and kilohertz se-
D should light.
lectors to 115.00.
Same as step 27 above.
Same as step 27 above.
1.0 FREQ SELECT
30
Set the megahertz
(MHz) lamps C and
and kilohertz se-
E should light.
lectors to 116.00.
Same as step 27 above.
Same as step 27 above.
1.0 FREQ SELECT
Set the megahertz
31
(MHz) lamps D and
and kilohertz se-
lectors to 117.00.
E should light.
a. Troubleshoot the con-
a. If either one, or both,
1.0 FREQ SELECT
Set the megahertz
32
trol unit as described
of the 1.0 FREQ SE-
and kilohertz se-
(MHz) lamps A and
in TM 11-5826-226-34.
LECT (MHz) lamps do
D should light.
lector to 118.00.
not light, the megahertz
COMM lamp should
selector in the control
light.
unit is defective.
b. If a break in the circuit
b. If the COMM lamp does
is present, make resis-
not light, either a break
tance measurements to
in the circuit is present,
find the break. If no
between P2-K and P5-a,
break is present,
or the megahertz se-
troubleshoot the con-
lector in the control
trol unit as described
unit is defective.
in TM 11-5826-226-34.
Troubleshoot the control
The megahertz selector
1.0 FREQ SELECT
33
Set the megahertz
unit as described in TM
in the control unit is
(MHz) lamps A and E
and kilohertz se-
11-5826-226-34.
defective.
should light. COMM
lectors to 119.00.
lamp should light.
Same as step 33 above.
1.0 FREQ SELECT
Same as step 33 above.
34
Set the megahertz
(MHz) lamps B and E
and kilohertz se-
should light. COMM
lectors to 120.00.
lamp should light.
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
35
Set the megahertz
(MHz) lamps A and B
and kilohertz se-
should light. COMM
lectors to 121.00.
lamp should light.
Same as step 33 above.
Same as step 33 above.
1.0 FREQ SELECT
Set the megahertz
36
(MHz) lamps A and C
and kilohertz se-
should light. COMM
lectors to 122.00.
lamp should light.
2-21
