Wyse WY-60 Maintenance Manual page 50

Follow this procedure to determine whether or not the display is
within specification. Notice that the procedure contains two
columns, one to describe specific actions and one for comments
and descriptions.
ACTION
1. Turn off the terminal. Unplug
it from its AC power source
and disconnect any communications
cables.
COMMENTS
2.
3.
Attach the diagnostic test
connectors to the MODEM and AUX
ports on the rear panel of the
logic pedestal.
Plug in the terminal and turn
it on. Let the terminal run
for 30 minutes.
See Chapter
5
if you need
to order these connectors
or Appendix C for
instructions to make
them.
Before you check the
display to determine if
the power supply or
monitor assembly need
adjustments or alignment,
let the terminal run for
30 minutes. This assures
you that the display is
stable and will not drift
or display other
distortion after you
measure it.
4. Hold the SHIFT key, then press
the SETUP key.
5.
Press the F2 function key.
Look for the TEST=OFF
field in the third line
of the setup menu.
6.
Press the CURSOR DOWN key twice.
Press the CURSOR RIGHT key once.
7. Press the SPACEBAR.
This toggles the TEST
field ON.
8.
Press the FlO key.
9.
Press CURSOR RIGHT once.
10. Press the F10 key again.
4-3
This saves the selection
you've made and start the
diagnostic self-test.
You.should see a flashing
t est p3 t t ern
0
f
asterisks.