TM 11-6625-2709-40
2-8.
Troubleshooting Chart - Continued
Probable trouble
Proper
for improper
Correction
Procedure
Step
indication
indication
If either one, or both, of
Troubleshoot the control
0.1 FREQ SELECT
Set the megahertz
6
unit as described in TM
the lamps do not light, the
(MHz) lamps A and
and kilohertz se-
11-5826-226-34.
kilohertz selector on the
B should light.
lectors to 108.15.
control unit is defective.
a. Troubleshoot the con-
a. If 0.1 FREQ SELECT
0.1 FREQ SELECT
Set the megahertz
7
trol unit as described
(MHz) lamp A does not
(MHz) lamps A and
and kilohertz se-
in TM 11-5826-226-34.
light, the kilohertz se-
C should light. 0.01
lectors to 108.20.
lector on the control
FREQ SELECT
unit is defective.
(MHz) lamp B should
light.
b. If a break in the circuit
b. If 0.1 FREQ SELECT
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
between P2-h and P5-E,
break is present,
troubleshoot the control
or the kilohertz selec-
unit as described in TM
tor in the control unit
11-5826-226-34.
is defective.
c. If 0.01 FREQ SELECT
C.
Troubleshoot the con-
trol unit as described
(MHz) lamp B does not
in TM 11-5826-226-34.
light, the kilohertz se-
lector in the control
unit is defective.
Troubleshoot the control
If either one, or both, of
0.1 FREQ SELECT
Set the megahertz
8
unit as described in TM
the lamps do not light, the
(MHz) lamps A and
and kilohertz se-
kilohertz selector in the
11-5826-226-34.
C should light.
lectors to 108.25.
control unit is defective.
If any one of these lamps
Troubleshoot the control
0.1 FREQ SELECT
Set the megahertz
9
unit as described in TM
(MHz) lamps B and
does not light, the kilo-
and kilohertz se-
11-5826-226-34.
hertz selector in the con-
C should light. 0.1
lectors to 108.30.
trol unit is defective.
FREQ SELECT
(MHz) lamp B should
light. GS/LOC ON
lamp should light.
0. 1 FREQ SELECT
Troubleshoot the control
Set the megahertz
10
If any of the lamps do
(MHz) lamps B snd
unit as described in TM
not light, the kilohertz
and kilohertz se-
C should light.
11-5826-226-34.
selector in the control
lectors to 108.35.
GS/LOC ON lamp
unit is defective.
should light.
a. Troubleshoot the con-
a. If 0.1 FREQ SELECT
0.1 FREQ SELECT
Set the megahertz
11
trol unit as described
(MHz) lamp B does not
(MHz) lamps B and
and kilohertz se-
light, the kilohertz se-
in TM 11-5826-226-34.
D should light. 0.01
lectors to 108.40.
lector in the control
FREQ SELECT
unit is defective.
(MHz) lamp B should
light.
b. If 0.1 FREQ SELECT
b. If a break in the con-
(MHz) lamp D does not
trol circuit is not pre-
light, either a break in
sent, make resistance
the circuit is present
measurements to find
between P2-i and P5-f,
the break. If no break
or the kilohertz selec-
is present, trouble-
shoot the control unit
tor in the control unit
is defective.
as described in TM 11-
(Cont)
5826-226-34.
2-18
Change 1
