TM 11-6625-2709-40
Troubleshooting
Chart
-
Continued
2-8.
Probable trouble
Proper
for improper
Correction
Procedure
Step
indication
indication
Same as step 12 above.
Same as step 12 above.
22
Set the megahertz
0.1 FREQ SELECT (MHz)
and kilohertz se-
lamps A and E should
lectors to 108.95.
light. GS/LOC ON lamp
should light.
0.1 FREQ
Note:
SELECT (MHz) lamps
B and E and 0.01
FREQ SELECT (MHz)
lamp B should
remain
lit
in
steps 23 through
40 below.
a. If 1.0 FREQ SELECT (MHz)
a. Troubleshoo the con-
Set the megahertz
23
1.0 FREQ SELECT (MHz)
trol unit as described
and kilohertz se-
lamp A does not light,
lamps A and E should
in TM 11-5826-226-34.
the megahertz selector
lectors to 109.00.
liqht.
in the control unit is
defective.
b. If a break in the circuit
b. If 1.0 FREQ SELECT
is present, make resis-
(MHz) lamp E does not
tance measurements to
light, either a break in
find the break. If no
the circuit is present
break is present,
between P2-S and P5-W,
troubleshoot the control
or the megahertz se-
unit as described in
lector in the control
TM 11-5826-226-34.
unit is defective.
a. If a break in the circuit
a. If 1.0 FREQ SELECT
1.0 FREQ SELECT
24
Set the megahertz
is present, make resis-
(MHz) lamps B and
(MHz) lamp B does not
and kilohertz se-
tance measurements to
light, either a break in
E should light.
lectors to 110.00.
find the break. If no
the circuit is present
break is present,
between P2-V and
troubleshoo the control
P5-X, or the megahertz
unit as described in
selector in the unit is
TM 11-5826-226-34.
defective.
b. Troubleshoot the con-
b. If 1.0 FREQ SELECT
trol unit as described
(MHz) lamp E does not
in TM 11-5826-226-34.
light, the megahertz
selector in the control
unit is defective.
The megahertz seltector
Troubleshoot the control
1.0 FREQ SELECT
Set the megahertz
25
unit as described in TM
(MHz) lamps A and
and kilohertz se-
defective.
11-5826-226-34.
B should light.
lectors to 111.00.
a. Troubleshoot the con-
1.0 FREQ SELECT
a. If 1.0 FREQ SELECT
Set the megahertz
26
trol unit as described
(MHz) lamps A and
(MHz) lamp A does not
and kilohertz se-
in TM 11-5826-226-34.
light, the megahertz
C should light.
lectors to 112.00.
selector in the control
unit is defective.
b. If 1.0 FREQ SELECT
b. If a break in the circuit
is present, make resis-
(MHz) lamp C does not
tance measurements to
light, either a break in
find the break. If no
the circuit is present
(Cont)
Change 1
2-20