Advertisement
BC Board Block Diagram
CN I
BC
i[of:"z
Al5
$LOH
B16
SLOT-O
Al6
I
I
I
SAMPLE PULSE A27
I
I
+15V
+
15V
l
-J5V
B4
I
-15V
A4
i
+6V
B7
I
+6V
MIS
l
MOSI
SCLK
CHAR-BLANK
B17
CHAR-8
BIB
ciiiH
AIB
CHAR-A
Al9
V BLANK 2
B25
AFC
H SYNC
V SYN
V BLANK I
+5V
OU.SIGNAL
SW
Qll4
INT, SG.
B31
PR/R
PR/R
Bl2
PBIB
BIi
PB/8
Y/G
BIO
RESET
B26
Y/G
•
BUFFER
0154
ICI02
10 I DETECTOR
SLT
SLTI
SLTO
BLK
JCl03
ID· I ENCODER
OTHI
3-11
AFC
VCBL
VB
VG
VR
SLOT7
SLOT6
SLOT5
SLOT4
SLOT3
SLOT2
SLOTI
SLOTO
PEO
ICl6
SAMPLE PULSE GEN
IC35
BUFFER
V BLANK I
V BLANK 2
ICl24
CLOSED CAPTION
DISPLAY
-
0
,n
AO-A7, A8-A18
00-07
""
ooo
""
~~!:
IC I
CPU
+5V
0
:
IC3
PROGRAM
2 A\6
°3
Al5
9
Al4
'e
A13
4 Al2
AO•Al6
is
Al I
2i AIO
26 A9
27
AS
5
A7
I
I
12 AO
Al7
N.C.
IC15tl/31
INVERTER
WE
OE
1Cl512/31
INVERTER
IC15(3/31
CLOCK OSC
XI
20MHZ'
+l2V
~v
IC4
SRAM
I Al4
07 19
is
Al3
I
I
2
AJ2
03 15
02 13
I
I
00 II
0
5 AS
WR
3
A7
OE
I
I
10 AO
CE
ICl3
ADDRESS
SELECTOR
3-12
IC6
1/0 PORT EXPANDER
f:
35 03
I
I
PO 4
9
07
l~
PB7 [ SLOT7
I
I
PB I
SLOT I
PBO SLOTO
"
..
~
~
1-
~
,_
0
0
"
..
"
SEL BK SYNC SEP
SELECT SYNC SEP
4
3
9
I
3
'4
SELECT SYNC SE~
SEL BK SYNC SEP
SAO BU< D SP
SAO 01SP
-H SYNC
-V SYNC
ICI06
4 8 IT COUNTER
co~
HAI
IC\04
!INARRY
COUNTER
ICl2214/6)
INVERTER
V SYNC
SELECTION
0103, 0104
f010)A9 14
I
I
A7 12
A6
4
A~
2
A4
~
A3 5
I
I
A
I 7
(OIi AO
Advertisement
