IBM 3270 Hardware User's Guide

Symptom
9
10
If Your Screen And You Then
Looks Like This: Heard: Do This:
Any other number
Any
The system unit or the keyboard
followed by:
number
adapter cable has a problem.
(RESUME = "F1"
of beeps Report the problem or have them
KEY) serviced to fix the problem.
All
other
Any If you have an expansion unit,
incorrect4 screen
number
go to "Step 6, Do the Expansion
responses or of beeps Unit Check" on page 5-25
anything on the
other If you do not have an expansion
screen.
than a unit, the system unit
4
or
correct the keyboard adapter cable has
audio a problem. Report the problem
response!
or have them serviced to fix
or4 the problem.
beeps
4 An audio response of 1 long and 2 short beeps with a
correct screen can be caused by switches on the system
board that are incorrectly set. The correct switch
settings are: 1 = 0, 2 = 0 for math coprocessor or 1 for
no coprocessor, 3 = 0,4 = 0,5 = 1,6 = 1,7 = 0 for
two diskette drives or 1 for one diskette drive, 8 = 1.
Chapter 5. Locating Problems with Your PC Units 5-13

IBM 3270 Specifications

General

Brand	IBM
Model	3270
Category	Desktop
Language	English