TM 11-6625-3081-23
7 - 1 7.
LASER POWER SUPPLY ASSEMBLY 2A1A6 AND LASER COVER ASSEMBLY 2A1A2A19
7-17
INPUT CODE:
LASERST (cont)
c. SEGMENT 1
1. VDT DISPLAY
DISCONTINUITY EXISTS IN THE CABLE P/N 13081837 OR IN SHORTING PLUG BETWEEN
PINS 3 AND 5 OR PINS 4 AND 1.
RESISTANCE READING IS #.# OHMS. PERFORM THE
FOLLOWING REPLACE ACTION IN THE ORDER LISTED.
(REFERENCE TM 11-6625-3081-23
FOR REPLACEMENT PROCEDURES.)
REF. DES.
PART NO.
NAME
1. 2A1A2A19
13083360
LASER COVER ASSY.
2. 2A1A6A1
13081519
RELAY ASSY.
2 .
CORRECTIVE ACTION - SEGMENT 1
(a) Remove Laser Cover Assembly 2A1A2A19. Check contacts of mating
connectors and repair if required.
Install replacement 2A1A2A19 and
perform LASERST test.
If LASERST test passes, no further action
required.
If this segment displayed again, proceed to (b). If another
segment displayed, proceed to that segment and continue
troubleshooting.
(b) Remove Relay Assembly 2A1A6A1.
Check contacts of mating connectors and
repair if required.
Install replacement 2A1A6A1 and perform LASERST
test.
If LASERST test passes, no further action required.
If this
segment displayed again, proceed to (c).
If another segment displayed,
proceed to that segment and continue troubleshooting.
(c) Check the following cable assemblies and repair as required:
W27
W28
W29
2A1W26
2A1W32
2A1W45
2A1A2W40
If any cable was repaired, perform LASERST test. If LASERST test
passes, no further action required.
If LASERST 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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