Wyse WY-60 Maintenance Manual page 29

To replace the yoke, follow these steps:
Warning--Before you reattach the yoke assembly, you must
discharge the anode. A CRT left standing for any length of time
will develop a charge from the air, and need to be discharged
again.
1.
Position the yoke on the neck of the CRT (see Figure 2-9).
2. Tig h t en t he yo ke
1
oc k .
3.
Replace the CRT/yoke assembly in the terminal.
Replacing the Terminal Enclosure
Tool required:
o No.2 Phillips screwdriver
To replace the terminal enclosure, follow these steps:
1.
With the terminal face on a nonscratch surface, reseat the
enclosure over the wire frame into the back bezel.
2. Replace the two No. 2 Phillips screws on the rear of the
terminal enclosure. Tighten.
3.
Replace the two No.2 Phillips screws on the bottom of the
term inal. Tigh ten.
Discharging the Anode
Tools required:
o Insulated flat-blade screwdriver
o Alligator clips
We have written specific warnings throughout this chapter about
discharging the anode on the side of the CRT. If you have never
discharged the anode, or need a review, follow these
instructions.
To discharge the CRT anode before removal (see Figure 2-10),
follow these steps:
1.
Turn off the terminal and unplug it from its power source.
2. Remove the terminal enclosure.
3.
Ground the shaft of an insulated flat-bladed screwdriver to
the terminal wire frame with alligator clips.
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