Wyse WY-60 Maintenance Manual page 136

Terminal enclosure
removing, 2-9
replacing, 2-16
Term inal PCB
assembly drawing, 7-18
component adjustment
locations, 4-10
component layout diagram,
5-14
logic schematic, 7-9, 7-11
removing, 2-11
replacing, 2-13
schematic, 7-13
Test connectors
AUX port, C-1
back-to-back, C-1
MODEM port, C-1
Test patterns, 4-15
character attribute, 4-15
M, 4-15
0, 4-16
Tools required
for alignment, 4-2
for assembly
removal/replacement, 2-3
for power supply check,
3-14
Tr ans fo rme r
flyback, 6-8
main switching power, 6-6
Troubleshooting
aids, 3-12
flowchart, 3-5
quick reference guide, 3-4
safety warning, 3-1
symptoms, 3-4
tools required, 3-1
U
DART, 6-4
UART clock, 6-6
V
Vertical
blanking, 6-13
deflection circuit, 6-8
font density, A-2
hold adjustment, 4-10
Video
ampl i fier, 6-8
controller, 6-11
display alignment pattern,
D-2
inspection reticle, D-1
shift register, 6-3
Video clock circuits, 6-11
Video shift register, 6-12
Voltage doubler, 6-6
Voltages
checking, 3-14
power supply, 3-14, 6-6
specifications, A-1
W
Warmup time, A-3
Weight, A-3
Width
adjustment, 4-11
checking with reticle, D-3
WY-60 ASCII keyboard
assembly drawing, 7-15
cable removal/replacement,
2-5
PCB removal/replacememt,
2-6
schematic, 7-3
y
Yoke
remov ing, 2-15
replacing, 2-16
1-6