Wyse WY-60 Maintenance Manual page 53

WARNING--The CRT/yoke assembly has high voltages. Only qualified
service personnel should perform these adjustments.
Follow these steps to align the terminal display. Notice that
the procedure has an action column that describes each step and a
comments column that describes symptoms you should look for or
other information that will help you with that step.
Note--If you already have one of the test patterns on the screen,
remove the terminal bucket and go to Step 10.
ACTION
1. Turn off the terminal.
Unplug it from its AC power
source and disconnect any
communications cables.
COMMENTS
2.
3.
4.
Remove the terminal bucket.
Attach test connectors to
the MODEM and AUX ports In the
rear panel of the logic pedestal.
Plug in the terminal and turn
it on. Let the terminal run
for 30 minutes.
See Chapter 2.
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.
5. Hold the SHIFT key, then
press the SETUP key.
6.
Press the F2 function key.
Look for the TEST=OFF
field in the third line
of the setup menu.
7.
Press the CURSOR DOWN key twice.
Press the CURSOR RIGHT key once.
8.
Press the SPACEBAR.
This toggles the TEST
field ON.
9.
Press the F10 key.
10.
Press the CURSOR RIGHT key once.
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