Zenith Z-100 PC series Service Manual page 125

35 ADI 18 19
AI
A19
UZ3~
A31
36 AD! 17 16 Al
A18 LS373
~
A31
37 AD2 14
15
A2
A17 A29
38
AD3
13 12 A3
A16 A28
AD4
9
A15 A27
2 ADS 7
6
AS
A14 A26
3 AD6 4 5 A6
39 8 A4
;=:.
A13
---J>
A25
4 AD7 3 2 A7
Al2
A24
U23!i
5
or
TRANS
All
III
6 1
7 ALEB
A9
8088
All
8 AENI
A8 SH4
9
AD7
II
·17
3
A8
AD6
uZ33
A23
11 5
;::: ­
15 A9
AD5
LS244
A22
12
13
7 All
AD4 A21
13 11 9 All
AD3
14 8 12 A12
A2'
E.
IiMI
AD2 A19
15 6 A13
.!!
INTR
ADI
14
A18
16 4 16
ADI
---J>
2
18
ArnX
~
READV
SH4
28
or or
~
RESET
S2
27
1 119
26 AB-A19
SI
SI
r!!
CLK
tK~
~ ~/Gfj
ADI-AD7
iIliAffi
LOCK NC
~
18 19 A16
Rli
~
NC
UZ3Z.
A15
17 16 A17
LS373
A14
34 14 15 A18
HIGH A13
25 13 12 A19
QSI
~
A12
24
S2
8
9 S2f
QSl SH5
7 6
A14
"IN/MAH~
A17
~fffi
_ 33
4 5 A15
---J>
A16
3 2 AEN
All
ADI-AD7
or
TRANS
~
1
r
~+5V
B
RP209
-
34
!!
BUSV
BHE/S7
25
QSI
24 ADI 9 11 DI
~ ~/Gfj
QSl U2.45
~
An
ADI 8 12 Dl
i!<:iIliIG'fi
lS245
AI8
28 AD2 7
13
D2
S2
Al7
27 AD3 6 D3
Sf
~
AI6
26
Si-S2
AD4 5 15
D'
~:;:~
I '
$I
A.5
ADS 4 16 D5
..!!
CLK
.---
AI4
16 AD6 3
<l----1>
17
lJ6
U234 ADI AI3
15 AD7
2
}>
18 D7 6 ~
ADI
~
AI2
14
or
DIR
AD2
.!!
AD3
13
19
11
!!
8087
Si
2 ALs.a 3
12 DT/Ii
UZ3b
,E-
AD4 SH5
~
11
Ga'O
ADS SH5
II
ALE'
A»6
9
AD7
8
A8
7 17 3 4
A9 U25Z S U23b (,
6
Al.
ALSla
h'
~
4 ,
5
PO
•
5
~
All
-~,
UZ2.Cf
A12
3
LS74
A13
-~>
,0
2
a..
Al'
L
A15
39 1
38 PUlLUP
A16
)
SH'
37 SI
A17
SH'
36 SI
A18 SH4
35
S2
AI.
SH4
32 INT87
INT SH4
2
CLKG
~44
11 9 ALE ALEB
UZ4\, B28
t+
5v
TITLE 2-3 CPU COST REDUCED
ENGlf'iEER B, LEVV DPA • 55381
~l®l"®. ["'~ [l~l"t$l'l$
[m'1,
[_
U8:~
T
~::;
T
~~::
T
~~:~8
T
~;::
T
VL~:~
T
CZIl.
DRAWN BY
D. VEREB DATE BJUN84
12 121 121 7 7 7 REVISION THIRD DATE 6MAVas
(c) ZenIth Doto Syst~,.,s SHEET 1 of 5