TM 11-6625-2709-40
2-8. Troubleshooting Chart - Continued
Probable trouble
Proper
for improper
Correction
Indication
indication
Procedure
Step
49
0.1 FREQ SELECT (MHz)
If any of the lamps do not light, the
Troubleshoot the control unit as
Set the megahertz and
kilohertz selector in the control unit is
described in TM 11-5826-226-34.
kilohertz selectors to
lamps A and C should light.
0.01 FREQ SELECT (MHz)
defective.
108.25.
lamp B should light.
0.1 FREQ SELECT (MHz)
If any one of these lamps does not
Troubleshoot the control unit as
Set the megahertz and
50
light, the kilohertz selector in the con-
described in TM 11-5826-226-34.
kilohertz selectors to
lamps B and C should light.
trol unit is defective.
GS/LOC ON lamp should
108.30.
1ight. TEST lamp should
light.
51
0.1 FREQ SELECT (MHz)
If any of the lamps do not light, the
Troubleshoot the control unit as
Set the megahertz and
kilohertz selector in the control unit is
described in TM 11-5826-226-34.
kilohertz selectors to
lamps B and C should light.
0.01 FREQ SELECT (MHz)
defective.
108.35.
lamp B should light. GS/LOC
ON lamp should light. TEST
lamp should light.
52
0.1 FREQ SELECT (MHz)
a. If 0.1 FREQ SELECT (MHz)
a. Troubleshoot the control unil as
Set the megahertz and
lamp B does not light, the
lamps B and D should light.
kilohertz selectors to
described in TM 11-5826-
kilohertz selector in the control
108.40.
226-34.
unit is defective.
b. If 0.1 FREQ SELECT (MHz)
b. If a break in the control circuit is
lamp D does not light, either a
not present, make resistance
measurements to find the
break in the circuit is present be-
tween P7-R and P5-M, or the
break. If no break is present,
troubleshoot the control unit as
kilohertz selector in the control
unit is defective.
described in TM 11-5826-
226-34.
Troubleshoot the control unit as
0.1 FREQ SELECT (MHz)
If any lamps do not light, the kilohertz
53
Set the megahertz and
selector in the control unit is defec-
described in TM 11-5826-226-34.
kilohertz selectors to
lamps B and D should light.
0.01 FREQ SELECT (MHz)
tive.
108.45.
lamp B should light.
Same as step 53 above.
Same as step 53 above.
54
Set the megahertz and
0.1 FREQ SELECT (MHz)
kilohertz selectors to
lamps C snd D should light.
108.50.
GS/LOC ON lamp should
light. TEST lamp should
light.
0.1 FREQ SELECT (MHz)
Same as step 53 above.
Same as step 53 above.
55
Set the megahertz and
kilohertz selectors to
lamps C and D should light.
0.01 FREQ SELECT (MHz)
108.55.
lamp B should light, GS/LOC
ON lamp should light. TEST
lamp should light.
Same as step 53 above.
56
Set the megahertz and
0.1 FREQ SELECT (MHz)
Same as step 53 above.
lamp C and E should light.
kilohertz selectors to
108.60.
0.1 FREQ SELECT (MHz)
Same as step 53 above.
Set the megahertz and
57
Same as step 53 above.
kilohertz selectors to
lamps C and E should light.
0.01 FREQ SELECT (MHZ)
108.65.
lamp B should light.
Same as step 53 above.
0.1 FREQ SELECT (MHz)
58
Same as step 53 above.
Set the megahertz and
kilohertz selectors to
lamp D and E should light.
GS/LOC ON lamp should
108.70.
light. TEST lamp should
light.
59
Same as step 53 above.
Same as step 53 above.
Set the megahertz and
0.1 FREQ SELECT (MHz)
kilohertz selectors to
lamps D and E should light.
0.01 FREQ SELECT (MHZ)
108.75.
lamp B should light. GS/LOC
ON lamp should light. TEST
lamp should light.
Set the megahertz and
0.1 FREQ SELECT (MHz)
60
Same as step 53 above
Same as Step 53 above.
kilohertz selectors to
lamp A and D should light.
108.85.
Change 1
2-22.3
