Yamaha DSP-AX620 Service Manual

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DSP-AX620
■ SCHEMATIC DIAGRAM (INPUT 1/2)
* 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.
IC311, 313–317, 319, 320 :
µPC4570G2
Dual OP-Amp
–+
OUT 1
–IN 1
–V CC
+V CC
OUT 2
1
2
3
4
5
+IN 1 –IN 2
+IN 2
– +
6
7
8
L2
L4
L3
LCOM1
L1 1
2
3
4
5
L6
LCOM2
L5 6
7
8
L8
LCOM3
L7
9
10
11
V
DD
19
V SS
16
V EE
12
RES
18
S
17
LEVEL SHIFTER
LATCH
SHIFT REGISTER
R2
R4
R3
RCOM1
R1
R6
RCOM2
R5
R8
RCOM3
R7
20
22
30
29
28
27
26
25
24
23
21
CONTROL
15
CL
14
D1
13
CE
IC301, 303 : LC78211
Analog Function Switch
IC302, 304 : LC78213
Analog Function Switch
L6
LCOM3
L5
7
8
9
L7
LCOM4
10
11
V
DD
19
V
SS
16
V
EE
12
RES
18
S
17
LEVEL SHIFTER
LATCH
SHIFT REGISTER
R6
RCOM3
R5
R7
RCOM4
20
24
23
22
21
CONTROL
15
CL
14
D1
13
CE
L4
LCOM2
L3
4
5
6
R4
RCOM2
R3
27
26
25
L2
LCOM1
L1
1
2
3
R2
RCOM1
R1
30
29
28
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
INPUT SELECTOR
PHONO MM
EQ AMP
BUFFER
FL
FL
RL
RL
RL
RL
L
L
L
L
L
C
C
C
C
0
0
0
10.7
0
0
0
–10.6
0.1
0.1
0.1
0.1
0.1
0.1
11.2
0
0
0
0
0
0
11.2
0
0
–11.8
0
0
0
0
–11.8
–11.8
0
0
–11.8
0
0
–11.1
0
0
0
11.2
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
0.1
0.1
0.1
0.1
0.1
0.1
0
0.1
0.1
0
0
0
–11.1
0.1
0.1
11.2
0.1
0.1
0.1
–11.2
0
0
0
–11.2
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
0
0.1
0.1 0.1
0.1
0.1
0.1
0.1
0.1
0.1 0.1
0.1
0
0
0.1
11.2
0
0
0
–11.2
0
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
12.0 12.0
0.1
12.0
0.1 0.1
0.1
–11.9
12.0
0.1
0.1
12.0
0.1 0.1
0.1
–11.9
12.0
0
0
12.0
0 0
0
–11.9
12.0
12.0
0
12.0
0 0
0
–11.9
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
11.2
0
0
0
–11.1
–11.8
0
0
0
11.2
0
0
0
–11.1
0
0
–11.8
0
0
–11.8
3
8
1
2
6
4
7
5
8
5
6
7
8
4
5
6
7
2
3
1
8
5
6
7
4
2
3
1
8
5
6
7
4
2
3
1
4
2
3
1
5
7
8
6
2
1
4
3
3
1
8
2
6
7
4
5
8
2
3
1
4
5
6
7
CIRCUIT CHANGES BY MARKET.
X : NOT USED
RJ-1073F-09-0351A
E-69/J-67
P-E71/J69
L-5
P-E71/J69
H-3
P-E70/J68
A-6
P-E68/J66
H-1
P-E70/J68
A-4
P-E72/J70
A-6
P-E70/J68
D-5
P-E70/J68
A-1
P-E70/J68
C-8

Yamaha DSP-AX620 Specifications

General

Brand	Yamaha
Model	DSP-AX620
Category	Amplifier
Language	English