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AMSTRAD PPC 512S - Page 30

AMSTRAD PPC 512S
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> SCHEMATIC DIAGRAM
TO SHEET 2
/
*
A A
A
A
F V V V
v
v
v
v
\r
v ir V
V
f
dp
1A |A |A
T
1A1S-AI9
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I
s
BA16
3
IC115
HC244
5 ICHS
HC244
7
IC11S
HC244
[CI 15
'
BADI3
BADI5
8AD14
6AD12
(
BADM
~5T2~
~5T2~
>
BADIO
6A09
T^-
~5T
~5^2~
C
BADB S.2 18
9 5.2
1
12
5.2*
1
5 S.2
5 S.2
2 S.2
A14
"A13~
ITg-
ICI22
74LS373
NR1D5
4.'7K
NMEMR
NXIO*
RESET
=3
ICI28
HCU04
NEOP 3[X.4 EOP
IC11S
HC244
"TJT.
ICI15
HC244
1R32
IRQ5
DISPLAY NWI
s^
$
SKT AS
-
A16
'
AS
A19
A7
A20
AS
A2I
BIO
B29
B11
B30
B12
B31
NDACK2
B21
B3
B22
B4
923
A1S
824
PRQ2
SKT /
B37
H2V
-sv
-12V
-20V
B17
B18
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5
B
PCB 101
MC005IA
TTJ
SHEET 4