Yamaha AD824 Service Manual page 77

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A
B
C
AD824 OVERALL CIRCUIT DIAGRAM 1/4 (MAIN, MYSL)
1
MYSL
2
3
4
5
6
7
8
9
Note : See parts list for details of circuit board
component parts
10
: Metal Film Resistor
: Ceramic Capacitor
: Mylar Capacitor
: not installed
11
12
AD824
A
B
C
D
E
F
SLOT
KEC-92530
to DC-CN008
MAIN
BUFFER
COM
RS422
IN
WORD CLOCK
OFF
75Ω
ON
LINE RECEIVER
D
E
F
G
H
I
J
AND
BUFFER
BUFFER
BUFFER
BUFFER
MULTIPLEXER
BUFFER
LINE DREVER
/RECEIVER
DATA SELECTOR
D-FF
G
H
I
J
K
L
M
INVERTER
SYSTEM RESET
SRAM 256K
D-FF
OP AMP
INVERTER
SRAM 256K
CPU
D-FF
DECODER
DECODER
DIR2
DATA SELECTOR
DIR2
K
L
M
N
O
P
Q
AD824
FLASH ROM 8M
to DC-CN010
to PN-CN961
D-FF
to PN-CN960
D-FF
BUFFER
to HA-CN002
BUFFER
BUFFER
to AD-CN003
WORD CLOCK
OUT
LINE DRIVER
KEC-92530
1
AD824
N
O
P
Q
1
2
3
4
5
6
7
8
9
10
11
12

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