TM 11-6625-2709-40
2-8. Troubleshooting Chart - Continued
Probable trouble
for improper
Proper
indication
Correction
Indication
Procedure
Step
indicate 75 5.0 microamperes to
should indicate 75 5.0
44
comprised of S6 and M1 to isol-
the right of 0, switch S6 or
microamperes to the right
ate the trouble.
DEVIATION meter M1 is defec-
of 0.
tive.
l. If output meter does not indicate
l. Output meter should in-
100 15 milliwatts, PHONE jack
dicate 100 15 milli-
comprised of J3 and S7 to isol-
J3 or switch S7 is defective.
watts.
ate the trouble.
NOTE
1.0 FREQ SELECT
(MHz) lamps A
and D should re-
main lighted in
steps 45 through 63
below.
a. If 0.5 FREQ SELECT lamps A or
0.1 FREQ SELECT (MHz)
Set the megahertz and
45
described in TM 11-5826-
B do not light, the kilohertz selec-
lamps B and E should light.
kilohertz selectors to
226-34.
tor in the control unit is defective.
0.01 FREQ SELECT (MHz)
108.05.
b. If a break in the circuit is pres-
b. If 0.01 FREQ SELECT (MHz)
lamp B should light.
lamp B does not light, either a
ments to find the break. If no
break in the circuit is present be-
break is present, troubleshoot
tween P7-T and P5-R, or the
kilohertz selector in the control
the control unit as described in
TM 11-5826-226-34.
unit is defective.
a. If a break in the circuit is pres-
a. If 0.1 FREQ SELECT (MHz)
0.1 FREQ SELECT (MHz)
Set the megahertz and
46
lamp A does not light, either a
lamps A and B should light.
kilohertz selectors to
ments to find the break. If no
break in the circuit is present be-
GS/LOC ON lamp should
108.10.
break is present, troubleshoot
tween P7-M and P5-I, or the
light. TEST lamp should
the control unit as described in
kilohertz selector in the control
light.
TM 11-5826-226-34.
unit is defective.
b. If 0.1 FREQ SELECT (MHz)
described in TM 11-5826-
lamp does not light, the kilohertz
226-34.
selector on the control unit is
defective.
c. If a break in the circuit is pres-
c. If GS/LOC ON lamp does not
light, either a break in the circuit is
ments to find the break. If no
present between P7-A and P5-Y,
break is present, troubleshoot
or the kilohertz selector in the
the control unit as described in
control unit is defective.
TM 11-5826-226-34.
d. If a break in the circuit is pres-
d. If TEST lamp does not light, either
ent between P7-Y and P5-J,
a break in the circuit is present be-
tween P7-X and P5-J, or switch S6
to find the break. If no break is
in the control unit is defective.
present, troubleshoot the con-
trol unit as described in TM
11-5826-226-34.
Troubleshoot the control unit as
If any of the lamps do not light, the
0.1 FREQ SELECT (MHz)
47
Set the megahertz and
described in TM 11-5826-226-34.
kilohertz selector on the control unit is
lamps A and B should light.
kilohertz selectors to
GS/LOC ON lamp should
defective.
108.15.
light. TEST lamp should
light.
a. Troubleshoot the control unit as
0.1 FREQ SELECT (MHZ)
a. If 0.1 FREQ SELECT (MHz)
48
Set the megahertz and
described in TM 11-5826-
kilohertz selectors to
lamps A and C should light.
lamp does not light, the kilohertz
226-34.
selector on the control unit is
108.20.
defective.
b. If a break in the circuit is pres-
b. If 0.1 FREQ SELECT (MHz)
lamp C does not light, either a
ments to find the break. If no
break in the circuit is present be-
tween P7-P and P5-K, or the
break is present, troubleshoot
the control unit as described in
kilohertz selector in the control
TM 11-5826-226-34.
unit is defective.
Change 1
2-22.2