User's Manual

CHAPTER 5 NDA-24300
Page 356
Issue 1
FAULT REPAIR PROCEDURES
6. CONTROL SYSTEM FAULT
This section explains the fault repair procedure for the control system listed in Table 5-8.
6.1 Check Point
When repairing the control system, check the status of the following lamps:
• CPR
• GT
• TSW
• MUX
• EMA circuit cards
Figure 5-9 shows a block diagram of the CPU controlling block, where CPU #0 is active.
Table 5-8 Control System Fault Situation
FAULTY SITUATION REFERENCE SECTION
Fault occurs occasionally at the STBY side. Section 6.2, Control System Fault - Fault Occurs Intermittently
STBY side is faulty. Section 6.3, Control System Fault - STBY Side Is Faulty