TM 11-6625-3081-23
7 - 2 1.
PHOTOMULTIPLIER BRACKET ASSEMBLY 2A1A1A7 AND PHOTOMULTIPLIER TUBE
(PMT/LED SOURCE)
7-21
INPUT CODE:
PMTLED (cont)
2. CORRECTIVE ACTION
- SEGMENT 1 (cont)
(e) Remove Sensor 2A1A1A1A7Q1.
Check contacts of mating connectors and
repair if required.
Install replacement 2A1A1A1A7Q1 and perform PMTLED
test.
If PMTLED test passes, no further action required.
If this
segment displayed again, proceed to (f). If another segment displayed,
proceed to that segment and continue troubleshooting.
(f) Remove PMT on PMT Bracket 2A1A1A1A7.
Check contacts of mating
connectors and repair if required.
Install replacement 2A1A1A1A7 and
perform PMTLED test.
If PMTLED test passes, no further action
required.
If this segment displayed again, proceed to (g). If another
segment displayed, proceed to that segment and continue
troubleshooting.
(g) Check the following cable assemblies and repair as required:
W6
W27
W28
1W8
2A1W26
2A1W31
2A1W32
2A1A1W9
2A1A1W11
2A1A1W14
2A2W1
2A2W19
If any cable was repaired, perform PMTLED test. If PMTLED test passes,
no further action required.
If PMTLED test fails and CALCST, PLLBUS,
MTRXSW, ADST, DIGITST, FPSST, and PPSST tests have been performed,
repair is beyond this level of maintenance.
Next higher level of
maintenance required.
If no cables were repaired and CALCST, PLLBUS, MTRXSW, ADST, DIGITST,
FPSST, and PPSST tests have been performed, repair is beyond this level
of maintenance.
Next higher level of maintenance required.
If another segment displayed, proceed to that segment and continue
troubleshooting.
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