Yamaha AW2816 Service Manual page 49

NJM2068MD-T1 (XJ553A00)
NJM4556AMT1 (XQ138A00)
µPC4570G2 (XF291A00)
Dual Operational Amplifier
MAIN: IC101-108, 201-208, 209, 302, 303,
305, 306, 308, 309, 311, 312,
313-315
Output A
1 +V 8
Inverting
2 7
Input A - +
Non-Inverting
3 6
+ -
Input A
-DC Voltage Supply
4 -V 5
MC26LS30D (XL334A00)
Line Driver
MAIN: IC602
SINGLE-ENDED MODE DIFFERENTIAL MODE
EIA-423
16
SR-A
Enable AB
2
15
Input A Out A
Input A
13
SR-B
3
14
Input B Out B
12
Input D
SR-C
6
11
Input C Out C
Enable CD
9
SR-D
Vcc
7
10
Input D Out D V
EE
TA7291S (XF557A00)
Motor Driver
SUB-FADER: IC103-106, 108-112
Vcc Vref
2 8
REG
Heat
protector
9 1 5
GND
IN1 IN2
NJM2904M (XV190A00)
Dual Operational Amplifier
MAIN: IC420
Output A
Inverting
Input A
Non-Inverting
Input A
Ground
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
EIA-422 1
Vcc
Input A
2
3
Input B/
15
3
2
Out A
Enable AB
Out B
14
Mode 4
GND 5
11
7 Out C
Input C/
Out D
6
10
6 Enable CD
Input D
7
1 Gnd 5
8 Mode 4 V 8
EE
6
Vs
OUT1
7
M
3
OUT2
+DC Voltage
1 +V 8
Supply
Output B
2 7
- +
Inverting
3 6
+ -
Input B
Non-Inverting
4 -V 5
Input B
16 SR-A
Operation
15
Output A Differential
(EIA-422-A)
14 Output B
13 SR-B
12
SR-C
Single-Ended
(EIA-423-A)
11
Output C
10 Output D
SR-D
9
X = Don't Care
Z = High Impedance (Off)
1 2 3 4 5 6 7 8 9
IN2 OUT2 GND OUT1 IN1
Vcc NC VS Vref
BH9595FP-Y (XV617A00)
SCSI Terminator
MAIN: IC720
Not to be used
1 TSD
(N.C.)
"H" : ENABLE
MODE
"L" : DISCONNECT 2
CONTROL
EN
SCSI LINE 15 3
to SW
POW
4
SCSI LINE 16
SCSI LINE 17 5
SCSI LINE 18 6
POW
(PUSH-PULL) (PUSH-PULL)
GND
7
GND
110Ω
Resistors
SCSI LINE 1 8
POW
SCSI LINE 2 9
(PUSH-PULL) (PUSH-PULL)
SCSI LINE 3 10
SCSI LINE 4 11
(PUSH-PULL)
2.85V
SUPPLY
SCSI LINE 5 12
POW
(PUSH-PULL)
V 13
DD1
2.85V GENERATER
Inputs
Vcc V Mode A B C D
EE
0 0 0 0 0
+5.0 GND
0 1 0 0 1
0 X 1 0 1
0 1 0 0 0
0 0 0 0 1
0 1 0 1 X
+5.0 -5.0 1 0 0 0 0
1 1 0 0 0
1 0 1 0 0
1 0 0 1 0
1 0 0 0 1
X 0 X X X X X X
AW2816
25 TSD
24 VM
POW
23 SCSI LINE 14
POW
22 SCSI LINE 13
21 SCSI LINE 12
20 SCSI LINE 11
POW
GND
19 SCSI LINE 10
POW
18 SCSI LINE 9
17 SCSI LINE 8
16 SCSI LINE 7
15 SCSI LINE 6
POW
14 V
DD1
BH9595FP-Y
Outputs
A B C D
0 1 1 0
1 0 0 1
Z Z 0 1
1 0 1 0
0 1 0 1
1 0 Z Z
0 0 0 0
1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1
Z Z Z Z
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