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ND-71762 (E) CHAPTER 8
Page 89
Issue 2
MAINTENANCE PROCEDURE
2.3 How to Proceed with Diagnostic Work from System Message
The diagnostic procedure after seeing a system message is illustrated in Figure 8-2. Judge whether the fault status
coincides with the indicated status, following the sequence beginning with START.
STEP 1: Judge whether the fault coincides with the fault status (1).
STEP 2: If the fault status does coincide, the fault is indicated by (2). Repair the fault according to paragraph ×.
×. × as shown by (3). Otherwise, proceed to (4).
STEP 3: Perform the work indicated by (4).
The result of the work (4) is broken down as indicated by (5).
STEP 4: Make a judgment as to whether the result of work (4) coincides with the status indicated by (6).
If so, the fault is indicated either by (7) or by (2’). If not, proceed to the next step.
STEP 5: Perform the work indicated by (4’), and if the result of the work is the same as the status indicated, the
fault is indicated by (2’’).
If the fault repair work indicated by (2’’) affects another normal line, recheck the work as indicated by
(8).