TM 11-6625-2950-13
Table 5-3. Troubleshooting Chart for Interconnecting Box-Continued
Control setting
Test
Step
Equipment
Performance standard
Test procedures
no.
equipment
under test
J2b
J2S
No continuity
1
S8-AM
J2b
Cont.
No continuity
J2S
S8-FM VOICE
J2G
J2b
620 60 ohms
S8-FM VOICE
J2b
J2G
620 60 ohms
S8-EXT
No continuity
J2G
J2b
S8-AM
J2b
No continuity
J2G
S8-FM DATA
2
Apply 115 vac, 60 Hz
to the test set.
3
Set CB2 AC to ON.
CB2 AC ON
4
Check continuity from
J1E to J4F
Continuity
S1 ON
No continuity
J1E to J4F
S1 OFF
5
Disconnect the 115
vac, 60 Hz.
6
Apply 28 vdc
7
Press to test all
Lamps illuminate
lamps.
