Yamaha SB168-ES Service Manual page 135

H G
BLOCK DIAGRAM 004 (SB168-ES)
1
8
7
6
2
5
4
3
2
1
3
4
5
6 28CA1-2001041659-4
6
F E
HAAD2 (INPUT 1―8)
+48V
+48V
OP AMP OP AMP
IC102 (8P) IC104 (8P)
5 OP AMP
2
PAD
HA1 HA2
1 IC105 (8P)
JK101 7
6 6
24dB
BA
18dB
7
2
0dB 38dB 12dB
-1
6dB
14dB
-24dB 0dB
6
BA
7
2
-1
+48V
IC202 IC204
IC205 (8P)
The same as the above OP AMP
JK201
+48V
IC302 IC304
IC305
The same as the above
JK301
The same as the above
+48V
IC402 IC404
IC405
The same as the above
JK401
+48V
IC502 IC504
IC505
The same as the above
JK501
The same as the above
+48V
IC602 IC604
IC605
The same as the above
JK601
+48V
IC702 IC704
IC705
The same as the above
JK701
The same as the above
+48V
IC802 IC804
IC805
The same as the above
JK801
X901
CRYSTAL
16MHz
22,23
+5D
HA CONTROL
57,58
19
CPU
RES
52
RX
IC903 (64P)
54
SIDO-2
HAAD2 (INPUT 9―16)
The same as the above
LD1 (LEDs for INPUT 1―8)
LD200―223
+48V (Red 8pcs.)
SIG (Green 8pcs.)
PEAK (Red 8pcs.)
LD2
(LEDs for INPUT 9―16)
The same as the above
LD300―323
D
DM
see page 4
+48V +48V
1,23,28
7,19
4
ADC
5
AINL 15
1
SDATA
IC106
(28P) OUTPUT 1―8
25
24
RST
AINR
10 /RESET_ADA
1
13 14 17
Master clock
/MUTE
IC306
IC506
IC706
INPUT 1―8
Master clock
/RESET_ADA
/RESET_CPU
RX_CPU
SID0―2
INPUT 9―16
Master clock
/RESET_ADA
/RESET_CPU
RX_CPU
SID0―2
LED ON/OFF for +48V
LED ON/OFF for SIGNAL
LED ON/OFF for PEAK
LED ON/OFF for +48V
LED ON/OFF for SIGNAL
LED ON/OFF for PEAK
C B
DA
(OUTPUT 1―8)
OP AMP
OP AMP
+5VA +24dB IC102 (8P)
+3.3D
IC101 (8P)
+18dB
+5A
JK101
2 18 7
22 2 1 MUTE
BA 8
17 VOUTL
5
23 3 7 MUTE
DAC
1
LPF
IC903
OP AMP
(28P)
6 OP AMP
+24dB IC202 (8P)
SDATA
IC201 (8P)
+18dB
JK201
7
20
2 1 MUTE
BA 7
VOUTR
5
21 3 7 MUTE
1
4 5 7 3
LPF
JK301
6
IC904
JK401
The same as the above
5
JK501
4
IC905
The same as the above JK601
3
JK701
2
IC906
The same as the above JK801
1
BLOCK DIAGRAM 004 (SB168-ES)
A
SB-168-ES