Wy-60 Ascii Keyboard Pcb Schematic - Wyse WY-60 Maintenance Manual

Figure 7-1 WY-60 ASCII Keyboard PCB Schematic
4 3
D
c
B
A
1
I
I I
I
I
I
I
I
I
I
i
I
i
I
I
2S 15 16 10
1' 3 "
Prfv P(,nt
21 24 25
26
27
1.:l 13 112 11
•
PAGE
Sfnl
®
0)
® ® @
CD
(?')
.18
LCLR
R1~
Ill'
~10
19 R8 7R6
5 fill 3 R2 Rl RO 8
,
NfXf
2-
VDI)
C
Linf
L2
C
7 <
REotUrT
-
>
I
lNS
. .
Z B
M
N V/ X
C
If>
,
Cnde
.
.
~d fa
28 PIN DIP
c4rL-1
~crn
\
1 (,NO 80 - 435-13
8
:
LR
L
K J H
G
0
F
WYSE ;
Li~'
[
I
?J
/
/
KEYBOARD SCANNER
C~
I
d'
c,L
y
J
0
®
I
U
T P R W
E
19 PC
)
CIL
SIlitt
I
CC I
Brl'Oi<
0
-
I
I
Hoot!
•
~
•
F16
CLK
LCLK DATA
(R)
-
"-
18 20
1
22
Esc
Enter
Ins
) (
,.
....
A
"
Ctrl
RfP~.
0
9 8
7
6/ 5
NC
"
NO
;r~
CdP5
i~ Linl'
!
<l:_
Funct
en. F14 F13 F12 Fl1
FlO
F9
Lock 1
CM;
/
VDD 2
Sf!
@
0.1
Up
Shllt
0
2
F7 FE F5 F4 F3 F2
~":
V
:0 ~
(L)
I
:::;;5
0 1
2 3 4
5
6 7 8 9
10
GND 4
Q)
Q)
IDS:
~
~EYBOARD lD
IS
41H
00'>
ALL CIRCLED KEYS ARE ON
NUMEPIC PAD.
~
z;
-
CLK 3
~;
ell
~~
~
~
DATA
1
~
4
7 -3
3