Troubleshooting
47
Table 3–6 (Cont.)
Troubleshooting the Terminal
Symptom
Probable Cause
Solution
3
Screen Display Problems
Horizontal or
vertical line
appears on screen.
Monitor.
See the monitor’s service guide.
Screen display
distorted or
jittery.
Nearby devices
are creating
electrical
interference.
Move the terminal away from the
electrical devices.
Monitor is out of
alignment.
See the monitor’s service guide.
System logic
board.
Replace the system logic board (4.6).
No bell tone or
keyclick.
Keyboard speaker
transducer.
Replace the keyboard (4.9).
In local mode,
the terminal
displays different
characters than
those typed.
Alternate
character set
selected.
Wrong keyboard
language selected.
Select the correct character set by
using the Customize General dialog
box.
Select the correct keyboard language
by using the Customize Keyboard
dialog box.
Keyboard.
Replace the keyboard (4.9).
System logic
board.
Replace the system logic board (4.6).
While on-line
with the host,
the terminal
displays different
characters than
those typed. (The
terminal works in
local mode.)
Transmit and
receive speeds are
incorrect.
Bits per character
or parity setting
is wrong.
Set the speeds to match the host
using the Customize Host Port or
Customize Printer Port dialog box.
Set the Word Size or Parity setting
to match the host, using the
Customize Host Port or Customize
Printer Port dialog box.
Stop bits setting
is incorrect.
Set the Stop Bits number to match
the host, using the Customize Host
Port or Customize Printer Port
dialog box.
3
Section numbers follow the solution.
