NEC SV8500 Operation And Maintenance Manual - page 589
– 542 –
CHAPTER 4
Fault Repair Procedures
1.4.3
Fault Repair/Localization Flow
This section explains how to restore the system that is not operating normally due to fault. Follow
the flow chart given below, which will show you the cause of the fault as well as countermeasures
against it. Indicated countermeasures are explained in detail on
Figure 4-1 Flow Chart to Localize Faults (1/3)
Incorrect switch setting?
ALM lamp is flashing on EMA?
(abnormal behavior while
running software)
Yes
No
Causes: Countermeasures
Fault Analysis
START
CF Card Access Lamp
is flashing?
Yes
No
Power Off and ON the system.
Yes
No
Restored?
- Incorrect switch setting: See
- Temporal CF card fault: See
Create new CF card.
(1) CF card initial (
(2) Initial Install by PCPro Tools
- Office Data in CF is abnormal. See
.
- Program in CF is abnormal. See
.
Yes
No
Restored?
Yes
No
Restored?
Replace the following in this order.
(1) CF card
(2) CPU card
- The replaced card was faulty. See
- The fault may not be caused by the system. See
Yes
No
Restored?
Replace the CPU card
Yes
No
Restored?
- The replaced card was faulty. See
- The fault may not be caused by the system. See
No
(A)
- Some devices on the CPU card was faulty. See