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385700-4006-006
4.2 CORRECTIVE MAINTENANCE
This section describes the removal and replacement of the DLA. See Table 4-1 DLA Fault
Isolation, to determine when to remove and replace a line replaceable unit (LRU).
4.2.1 Remove and Replace DLA
Referring to Figure 4-1 Remove and Replace DLA, perform the following actions to remove the
DLA (shown as Item 2)
1.
Disconnect VAC power cable from DLA (2) POWER IN (3) port.
2.
Disconnect the USER control equipment data cable that attaches to the DLA's
ALARM/CONTROL port (6).
3.
Disconnect the HELIAX
4.
Disconnect grounding wire from the grounding stud (7) on the connector panel of
the DLA.
5.
Remove four bolts (1) from the DLA (2) mounting brackets.
6.
Remove DLA (2).
Referring to Figure 4-1 Remove and Replace DLA, perform the following actions to replace the
DLA:
1.
Place DLA (2) in position.
2.
Secure DLA (2) with four bolts (1).
3.
Reconnect the HELIAX cables to RADIAX input/output ports (4) and (5).
4.
Reconnect the USER control equipment data cable that attaches to the DLA's
ALARM/CONTROL port (6).
5.
Reconnect the grounding wire to grounding stud (7).
6.
Reconnect the VAC power cable to the POWER IN (3) port.
7.
Configure Channel 1 and Channel 2 output level and status alarm
adjustments per section 2.5.2 if not already performed.
Document use is restricted to that described on cover
MAINTENANCE AND TROUBLESHOOTING
®
cables from the RADIAX
®
input/out ports (4) and (5).
4-2
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