D-2
Troubleshooting CPU Boards
D
II. There is a
display on the
terminal, but
input from the
keyboard
and/or mouse
has no effect.
A. The keyboard or
mouse may be
connected
incorrectly.
Recheck the keyboard and/or mouse connections and
power.
B. Board jumpers
may be
configured
incorrectly.
Check the board jumpers per this manual.
C. You may have
invoked flow
control by
pressing a
HOLD
or
PAUSE
key, or by
typing:
<CTRL>
-S
Press the
HOLD
or
PAUSE
key again.
If this does not free up the keyboard, type in:
<CTRL
>-Q
III. Debug prompt
162-Bug>
does not
appear at
power-up, and
the board does
not autoboot.
A. Debugger
EPROM/Flash
may be missing
1. Disconnect all power from your system.
2. Check that the proper debugger EPROM or debugger
Flash memory is installed per this manual.
3. Reconnect power.
4. Restart the system by “double-button reset”: press the
RESET
and
ABORT
switches at the same time; release
RESET
first, wait seven seconds, then release
ABORT
.
5. If the debug prompt appears, go to step IV or step V, as
indicated. If the debug prompt does not appear, go to step
VI.
B. The board may
need to be reset.
IV. Debug prompt
162-Bug>
appears at
powerup, but
the board does
not autoboot.
A. The initial
debugger
environment
parameters
may be set
incorrectly.
1. Start the onboard calendar clock and timer. Type:
set mmddyyhhmm <CR>
where the characters indicate the month, day, year, hour,
and minute. The date and time will be displayed.
Performing the next step
(env;d) will change some
parameters that may affect
your system’s operation.
(continues>)
B. There may be
some fault in the
board hardware.
Table D-1. Troubleshooting MVME162LX Boards (Continued)
Condition
Possible Problem
Try This:
!
Caution
Содержание 700 Series
Страница 2: ......
Страница 3: ...700 800 Series MVME162LX Embedded Controller Installation and Use V162 7A IH1 ...
Страница 48: ...1 34 Board Level Hardware Description 1 ...
Страница 70: ...2 22 Hardware Preparation and Installation 2 ...
Страница 138: ...A 18 Configure and Environment Commands A ...
Страница 144: ...B 6 Disk Tape Controller Data B ...
Страница 146: ...C 2 Network Controller Data C ...
Страница 156: ...Index IN 6 I N D E X W watchdog timer 1 24 Z Z85230 serial communications controllers SCCs 3 6 ...