User`s guide

CDA 7 Maintenance Manual
3-4 77 A7 48UU Rev03
3.2.3 Power On
To power ON your CDA 7 subsystem:
1. Turn the battery ON.
2. Verify that the EPO switch is in the up position.
3. Set the AC power switch on the Power Distribution Module to the up position
and wait for the end of IML operations. The DIRECTORS hexadecimal
displays will then show "0F".
4. Switch the DIRECTORS to the ENABLE state on the operator panel.
5. Set the channels on the GCOS console to on-line.
3.3 Non-disruptive Replacement of Components
The replacement is done using the hot remplacement menu of the lap top. The
following paragraphs give the guidelines for each type of component.
Before carrying out replacement procedures, you must ensure that the Write
Pending status is at 0. Switch to INLINES session mode and send the ’A7’
command.
DA- 1a: DISK SUBSYSTEM=> A7
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: NOV/10/98 12:32:46
-----------------------------------------------------
NOT RDY WR DIS TYPE DEV WRT FMT | INVALID TRACKS COUNTS
DV# M1234 M1234 M1234 ATTR PEND PEND | M1 M2 M3 M4
--------------------------------------------------|-----------------------------
0F XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
10 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
11 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
12 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
13 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
14 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
15 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
16 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
17 XX-- ..-- mm-- ofs........... 0 0 | 0 0 276240 276240
TOTAL WR PEND TRACKS / FMT PEND: 0 / 0 START/END_DV: F / 17
TOTAL M1/M2/M3/M4 INVALID TRACKS: 0 / 0 / 0 / 0
GLOBAL WR PEND TRACKS / FMT PEND: 0 / 0
GLOBAL M1/M2/M3/M4 INVALID TRACKS: 0 / 0 / 0 / 0
--- DONE ---
DA- 1a: DISK SUBSYSTEM=>