B-2
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Troubleshooting
B
II. There is a
display on the
terminal, but
input from the
keyboard has
no effect.
A. The keyboard
may be
connected
incorrectly.
Recheck the keyboard connections and power.
B. Board jumpers
or switches
may be
configured
incorrectly.
Verify the settings of the board jumpers and
configuration switches as described in 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
167-Bug>
does not
appear at
powerup, 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 device is
installed.
3. Set J1 segment 5 to OFF (remove the jumper).
This enables use of the secondary EPROM.
4. Reconnect power.
5. 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.
6. 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.
Table B-1. Troubleshooting MVME167P Boards (continued)
Condition
Possible Problem
Try This: