Wyse WY-60 Maintenance Manual page 26

To replace the terminal PCB, follow these steps:
1. Posi tion the ESD shield on the bac k of the term inal PCB.
2. Replace the four plastic studs that secure it.
3.
Position the terminal PCB in its slot in the bezel. Make
sure the lever of the brightness potentiometer fits into the
brightness slidecontrol on the bezel.
4. Tighten the three screws that secure the terminal PCB to the
wire frame.
5.
Replace the ESD shield, then tighten the three remaining
screws.
6.
Reconnect the grounding wires to the wire frame.
7.
Reconnect the yoke harness to P201 on the terminal PCB.
Warning--Handle the CRT neck carefully. If you break it,
flying glass can injure anyone within a radius of six to ten
feet.
8. Reconnect the filament harness to the CRT neck.
9.
Discharge the anode on the CRT (see "Discharging the
Anode") .
10. Reconnect the anode lead.
11. Replace the back bezel and both barrier plates.
12. Replace the terminal enclosure and keyboard.
Removing and Replacing the CRT/Yoke Assembly
Tools required:
o No.2 Phillips screwdriver
o Flat-bladed screwdriver
o Alligator clips
To remove the CRT/yoke assembly (see Figure 2-8), follow these
steps:
1. Remove the terminal enclosure, keyboard cable, back bezel,
and barr i er pla tes.
2. Remove the terminal PCB and insulation sheet.
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