TM 11-6625-3081-23
7-28. OPTICAL SIGNAL GENERATOR (OSG) 2A2A3
7 - 28
INPUT CODE: OSGST (cont)
2. CORRECTIVE ACTION - SEGMENT 1 (cont)
(f) Check the following cable assemblies and repair as required:
W2
2A2W13
2A2W17
2A2W21
2A2W22
If any cable was repaired, perform OSGST test. If OSGST test passes,
no further action required.
If OSGST 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.
d.
SEGMENT 2
1. VDT DISPLAY
OSG COLLIMATOR LAMP ERROR.
PERFORM THE FOLLOWING REPLACE ACTIONS IN THE
ORDER LISTED.
(REFERENCE TM 11-6625-3081-23 FOR REPLACEMENT PROCEDURES.)
REF. DES.
PART NO.
NAME
1. 2A2A3A2DS1
13231773
TARGET/COLLIMATOR LAMP
2. 2A2A6XX
HP69331B
DIGITAL OUTPUT CCA (SLOT 408)
3. 2A2A3A1
13231678
RELAY BRACKET ASSY
4. 2A2A3A4
13231677
AMPLIFIER-DETECTOR CCA
5. 2A2A3
13231679
O.S.G.
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