Yamaha O2R96 Service Manual page 70

02R96
TC74HC238AF (XT163A00)
PN2: IC511
3 to 8 Line Decoder
A 1
Select
B 2
Inputs
3
C
G2A 4
Enable
G2B 5
Inputs
G1 6
Y7 7
GND 8
SN74HC245NSR (XD838A00)
PN2: IC510
TC74HC245AF (XS720A00)
PN1: IC100
Octal 3-State Bus Transceiver
1
D1R
2
A1
3
A2
4
A3
5
A4
A5 6
A6 7
A7
8
A8
9
GND
10
TB62705CF (EL) (XV013A00)
PN1: IC102-104, 301, 302
PN2: IC601-603
LED Driver
15
R - EXT
13
ENABLE
LATCH 4
2
SERIAL - IN
3
CLOCK
70
SN75C1168N (XU463A00)
DC1: IC303
Line Driver/Receiver
20 Vcc 1B
19
G
1A
18
B1
1R
17
B2
1DE
16
B3
2R
15
B4
2A
14
B5
2B
13
B6
GND
12
B7
11 B8
OUT 0 OUT 1
5 6
I - REG.
Q Q
ST D ST D
D Q D Q
CK CK
16 Vcc
15 Y0
14 Y1
13
Y2
12
Y3
11 Y4
10 Y5
9 Y6
1 16 Vcc
OUT1
2
15
1D
3
14
1Y
OUT2
4 13
1Z
5
12 2DE
Vcc
6 11
2Z
OUT3
7
10 2Y
8 9
2D
OUT4
OUT 7
12
Q
ST D
SERIAL - OUT
14
D Q
CK
Data
A 1 16 Vcc
Output
B 2
15
Y0
C
3 14 Y1
G2A 4
13 Y2
G2B 5
12
Y3
G1
6 11
Y4
Y7 7
10 Y5
Y6
GND 8
9
TD62M8600F (XV014A00)
PN1: IC101, 300
PN2: IC600
Source Driver
IN 1 16 IN8
2 15 OUT8
IN2 3 14 IN7
OUT7 RN6006
4 13
INPUT
Vcc
5 12 OUT6
IN3 IN6
6 11
OUT5
7 10
IN5
8 9
IN4
GND 1 16 V
DD
SERIAL - IN 2 15 R - EXT
CLOCK 3 14 SERIAL - OUT
LATCH 4 13 ENABLE
OUT 0 5 12 OUT 7
OUT 1 6 11 OUT 6
OUT 2
7 10 OUT 5
8 9
OUT 3 OUT 4
Vcc
OUTPUT