Wyse WY-60 Maintenance Manual page 84

CMO
DATA
AllX.. J'-
R,o
"0
DTR
DSR
M~M_
oCO
0\
CTS
I
R,o
f\)
RTS
ofR
"0
r~
r
r:
nS,2
;';67?
I)b f.'V
rc
QBT
tlO SI U9
cPU
lnr
l[11
UI
--y
I
J i-
","m
~r""'
L-r{~
J?
l{S~
' ' ' P
74L~2
73
2- 6~
U
-'1'~
>
U13
UI4
Vil
,o",r
("-
MAM
~:
vI9
~)
"
r-r
ROW BUFFER
ON
ADDRESS BUS
~ ~
x
J
l"
'----
6116 ~
-=
CHAR ROW BUFFER
Pi
or
~
VI5
..,
U>
2661
3 " ~
CD
UAkT
---lEL
I
,oM
"OJ [
8
~
iJ' J ~~
I-
U3
z
~G:l
,c.'
eli
"'
<t
w
C.HuA.
~
'"
~
I-
~~s
£
~rt-
RAM
"
:J
~ v7
~
tfG
~
z
S
~
S
I
_
....
U> U>
Jt
"
"
CD CD
J
~
U>
~
U>
W
or
6116
VIDE!
~
I
74LS245
I
GATE ARRAY
::i
6
VII
V
A TTR
ROW
8 UFFER
V20 VIOEt
it 5
VI6
u
I-N
I~:t8
J (
1
I
-
G1
2f,f,4
A f
AnA DATA BuS v
------v
RAM
u!'<
~
tr
l
~
I"%]
r-o'
()q
c
'1
(1)
0"1
I
~
~
(1)
'1
a
f-'.
::3
~
f-'
'"tl
(')
Ctl
t"""'
o
()q
f-'.
~
(')
f-'.
'1
~
C
f-"
'"
'1
'<
I"%]
C
::3
~
C""
f-"
o
::3
~
f-'
tIl
f-'
o
~
;W;
t1
f-'.
~
()q
'1
~
8
i"