Schematic Diagram (Input) - Yamaha DSP-AX620 Service Manual

A B C
DSP-AX620
SCHEMATIC DIAGRAM (INPUT 1/2)
1
2
RJ-1073F-09-0351A
3
IC301, 303 : LC78211
Analog Function Switch
L1 1 30 R1 P-E70/J68
C-8
L2 2 29 R2
L3 3 28 R3
L4 4 27 R4
LCOM1 5 26 RCOM1
L5 6 25 R5
L6 7 24 R6
LCOM2 8 23 RCOM2
L7 9 22 R7
4
L8 10 21 R8
LCOM3 11 20 RCOM3
V 19 LEVEL SHIFTER
DD
V 16
SS
LATCH 14 D1
V 12
EE
RES 18 15 CL
SHIFT REGISTER
S 17 13 CE
IC302, 304 : LC78213
Analog Function Switch
L1 1 30 R1
5
L2 2 29 R2
LCOM1 3 28 RCOM1
L3 4 27 R3
L4 5 26 R4
LCOM2 6 25 RCOM2
L5 7 R5
24
L6 8 23 R6
LCOM3 9 22 RCOM3
L7 10 21 R7
LCOM4 11 20 RCOM4
V DD 19 LEVEL SHIFTER
V SS 16
14 D1
LATCH
V EE 12
15 CL
RES 18 SHIFT REGISTER
S 17 13 CE
6
IC311, 313–317, 319, 320 :
µ
PC4570G2
Dual OP-Amp
OUT 1 1 8 +V CC
–IN 1 2 7 OUT 2
+ – + –
+IN 1 3 6 –IN 2
–V CC 4 5 +IN 2
7
8
0
0
9
10
E-69/J-67
D E F
PHONO MM
EQ AMP
10.7
3 8
0 1
2 0
RL
0
6
0 7
5
0
0 4
–10.6
C
BUFFER
11.2
8
3
0 1
INPUT SELECTOR
2
0
0
6
0 7
5 0
0 4
–11.1
0
–11.8 0 –11.8
G H I
P-E71/J69
P-E70/J68
L-5
A-4
RL
11.2
0.1
0.1 0.1
8
0.1
5
7
0.1
0.1 6
–0.1
2
0.1
0.1
–0.1 3
1
0.1 0.1 4
–11.2
C
11.2
0.1
0.1 0.1
8
0.1
5
7
0.1
6
–0.1
2
0 0
–0.1 3
1
4
0.1 0
–11.2
FL
0.1 0.1
0.1
0.1 0
0.1 0
0.1 0.1
0.1
0.1 0.1 11.2
0.1
8 L
0.1 5
L
0 7
6 0
0
2
0 1
0.1 3 0
0
0.1
4
–11.2
0.1
0.1 0.1
C RL FL
L
P-E70/J68 P-E68/J66
D-5 H-1
J K
P-E70/J68
P-E70/J68
A-6
A-1
11.2 RL
0 8
0
5
0
7
6
0 0
2 0
0
1
3 4 –11.8 0
–11.1
C
0
–11.8 0
11.2
0 8
0
5
0 7
6
–11.8 –11.8
0 0 0 0
0
2 –11.8
0 1
3
4 0 0 0
–11.1
0.1 0.1
0.1
0.1 0.1
0.1
0.1
0.1
0.1
0.1 0.1
0.1
0.1 0.1
0.1 0.1 0.1 0.1
0.1
0 0.1 0
11.2 L
0 8
0
3
0
1
2
0
0
6
0
7
5
4
–11.1
L M N
L
P-E72/J70
A-6
P-E71/J69
H-3
CIRCUIT CHANGES BY MARKET.
X : NOT USED
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
O