Table of Contents
Advertisement
B
1
c
ij
D
]
E
|
F
|
!
G
START/
SPLICE
DATA
BUS
'
•:
1
.
.
no
i
J
Uv
V
1C
1
\
PPD780C-I
CPU
j
r\7
(
r
o
k
y
U
f
V
?
Ac
j
,
.
4
MHz
AI5
L-O
O—
W
—
NDO
to
7S
JL
NDO
to
7S
J&T
X
DO
to
IS
W
\
00
to
7s
M
X
DO
to
7
S
D0^^7
DO
7
j
DO^Ot'
|
1
I
00^.7
1
DO
'-^-7
DO
7
RECT
RECT
VOICE
2
I
C 3
TMM2764D
1C
4
HD6850P
>RDX
IC5
j)PD8253C
-2
pPD8253C
-2
1C
7
JJPD7
I
054C
OUT
Of
1C
8
pPD7
1054C
)
OUT
0
1C
9
PP08237AC-
5
EP-ROM
AO
'
A12
CLK
O
to
2(
OUTO
to
2(
COUNTER
OUTO
to2(
COUNTER
|
RS/RW/CS^
COUNTER
AO
,
Al
COUNTER
AO
,
Al
DR03
DACK3
DMA
DRQ
|
DACK
|
DMA
REC1
VOICE
6
ADDRESS
BUS
\
AO
r~
8MHz CLOCK
v,
1C
23
tC
24
TC74HC4040P
TC74HC4040P
IC25
I
IUI
1
I
1
I
!
TC74HC245P
IC26
JIPD4I4I6C-
IC27
JIPD4I4I6C-
IC
28
JJPD4I4
1
6C-
IC
29
JtPD
4141
6C"
IC30
JIP04I4I6C-
IC
3
I
UPD4I4I6C-
IC32
TC74HCI57P
1C
33
TC74HCI57P
R,
Advertisement
Table of Contents
