Motorola MVME2600 用户手册

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C
C-1
C
Troubleshooting CPU Boards:
Solving Startup Problems
Introduction
In the event of difficulty with your CPU board, try the simple 
troubleshooting steps on the following pages before calling for help or 
sending the board back for repair. Some of the procedures will return the 
board to the factory debugger environment. (The board was tested under 
these conditions before it left the factory.) The self-tests may not run in all 
user-customized environments.
Table C-1.  Troubleshooting MVME2603/2604 Boards
Condition
Possible Problem
Try This:
I. Nothing works, 
no display on the 
terminal.
A. If the 
FUS 
(or
 
CPU
) LED is not 
lit, the board may 
not be getting 
correct power.
1. Make sure the system is plugged in.
2. Check that the board is securely installed in its backplane or 
chassis.
3. Check that all necessary cables are connected to the board, 
per this manual.
4. Check for compliance with System Considerations, per this 
manual.
5. Review the Installation and Startup procedures, per this 
manual. They include a step-by-step power-up routine. Try it.
B. If the LEDs are 
lit, the board may 
be in the wrong 
slot.
1. For VME modules, the CPU board should be in the first (left-
most) slot.
2. Also check that the “system controller” function on the board 
is enabled, per this manual.
C. The “system 
console” terminal 
may be configured 
incorrectly.
Configure the system console terminal per this manual.