Yamaha DSP-AX2700, Руководство по обслуживанию

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A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V2700/DSP-AX2700
114
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
FUNCTION 3/4
11.8 11.8
-11.3
-11.3
0
0.1
0
0
0
0
0
0
0
0
0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11.8
11.8
0
0.1
0.1
0
0
0
0
-6.1
-6.1
-1.0
0.2
0
0.2
0
0.2
0.2
0
0.2
0
0.2
0
0.2
0 0 0
6.3 0 6.3 4.7
6.5 6.5 -6.1
0
0
0
0
0
0
0
0
0
0
0
0
6.5
0.2
0.2
0.2
0.2
0.2
0.2
0.2
6.5
-6.1
0
0
0
0
0
0.1
0.1
0.1
0.1
0.1
0
0
0.1
0
0
-11.3
-13.3
-11.3
11.8
11.8
0.1
0.1
-11.3
0
0
0
0
0
0
0
0
6.5
11.8
7.1
7.1
0
0 0
0
0.1
0.2 0.2
-11.3 11.8
0 0
0
0 0
0
0
0
0
0
0
0
0 0
0 0
0 0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.2
0.2
0
0.2
0
0.2
0
0.2
0
0
0
0
0 0
0.2
0 0
0.2
0
0.2
0
0.2
0
0.2
0
0.2
0.2
-11.2 -11.2
-11.2
-11.2
-11.2 -11.2
-11.2
-11.2 -11.2
-11.2 -11.2
-11.2
-11.2 -11.2
-11.2
-11.2
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0.1
0.1
11.8
11.8
11.8
11.8
-11.3
-11.3
-11.3
-11.3
0.1
0.1
0
0
0
0
0
0.1
0
0
0
0
0
0
4.7
0
-1.0
-6.1
0
6.3
0
0
0
0
0
0
6.5
6.5
-6.1
6.5
-6.1
0
0
0
0
-6.1
-6.1
6.5
0
0
0
0
0
-6.5
-6.5
-6.1 -11.3
0
0.1
0.1
0.1
PRESENCE L
CENTER
FRONT L
SURROUND
BACK L
SURROUND L
CENTER
SURROUND L
SURROUND
BACK L
FRONT L
SUBWOOFER
SUBWOOFER
E-VOLUME
E-VOLUME
DSL/DSR
DAL/DAR
BYPASS
DC/DSW
DSBL/DSBR
FUNCTION (2)
From FUNCTION 4/4
From FUNCTION 4/4
To FUNCTION 4/4
From FUNCTION 4/4
To FUNCTION 4/4
To FUNCTION 4/4
3 IN1
34 OUT1
OUT2
V o
lB:
50k
ohm
VolA: 30kohm
45 TE1
44 TE2
39
ZCEN2
38 ZCEN1
2 AVDD
46
DGND
47 REF
1 AVSS
43 SDATAO (OD)
41
SDATAI
42 SCLK
40
20
19
18
CSN
Control
Register
IC308 : YAC523-EVR2
Digital volume
25 REF1B
24 REF1A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
4 IN2
33
V
o
lB:
50k
ohm
VolA: 30kohm
23 REF2B
22 REF2A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
5 IN3
32 OUT3
OUT4
V
o
lB:
50k
ohm
VolA: 30kohm
21 REF3B
20 REF3A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
6 IN4
31
V o
lB:
50k
ohm
VolA: 30kohm
19 REF4B
18 REF4A
0~95dB
100
0~+31.5dB
CH1, 2, 3, 4 Control
56
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
S/P
Register
OUT5
14 REF6B
V
o
lB:
50k
ohm
VolA: 30kohm
8 IN6
13
REF7A
0~95dB
100
0~+31.5dB
+
–
OPA
12 REF7B
OUT6
OUT7
V
o
lB:
50k
ohm
VolA: 30kohm
9 IN7
15 REF6A
0~95dB
100
0~+31.5dB
+
–
OPA
16 REF5B
V
o
lB:
50k
ohm
VolA: 30kohm
7
IN5
17 REF5A
0~95dB
100
0~+31.5dB
CH5, 6, 7 Control
+
–
OPA
SCLK
SDATAO
TE1
DGND
REF
DVSS
AVDD
IN1
IN2
AVSS
1
2
3
4
5
6
7
8
9
10
11
12
SDATAI
CSN
ZCEN2
ZCEN1
OUT1
OUT2
24
23
22
21
20
19
18
17
16
15
14
13
TE2
TE3
REF1A
REF1B
AVSS
AVDD
REF2A
REF2B
IC307 : YAC526-EZE2
2ch high grade digital volume LSI
IN1
REF1A
OUT1
OUT2
0 ~ -95dB
0 ~ -95dB
0 ~ +31.5dB
0 ~ +31.5dB
REF2A
IN2
Zero
Crossing
Detector
Zero
Crossing
Detector
Control
Register
S/P
Register
16
TE3
ZCEN1
ZCEN2
SDATAO(OpenDrain)
SDATAI
SCLK
CSN
AVSS
DGND
REF
AVDD
REF1B
REF2B
OPAmp
TE2
TE1
Vol A:
15 k-ohms
Vol A:
15 k-ohms
Vol B:
10 k-ohms
Vol B:
10 k-ohms
OPAmp
DVSS
100 ohms
100 ohms
2
3
10
11
12
14
30
1 15
16
17
19
20
21
28
29
Le
v
e
l Shifter
Latch Circuit Le
v
e
l Shifter
Latch Circuit
Control Circuit
R1
R2
R7
R8
R-COM3
DATA
CK
Vss
L1
L2
L7
L8
L-COM3
ST
VDD
VEE
IC313 : NJU7313AM
Analog function switch
7
8
L5
L6
23
24 R5
R6
27 R3 4 L3
9
L-COM2
22
R-COM2
5
6
L4
L-COM1
25
26 R4
R-COM1
IC302, 304-306 : NJM2068MD-TE2
Dual operational amplifier
– +
OUT
1
–IN 1
–V
CC
+V
CC
OUT 2
1
2
3
4
5
+IN
1
–IN
2
+IN 2
– +
6
7
8
2
3
10
11
12
14
30
1 15
16
17
19
20
21
28
29
Le
v
el Shifter
Latch Circuit Le
v
el Shifter
Latch Circuit
Control Circuit
R1
R2
R7
R8
R-COM3
DATA
CK
Vss
L1
L2
L7
L8
L-COM3
ST
VDD
VEE
IC300 : NJU7312AM
Analog function switch
6
7
L4
L5 24
25 R4
R5
26
27 R3
R-COM1
4
5
L3
L-COM1
8
9
L6
L-COM2 22
23 R6
R-COM2
IC309-312 :
µ
PC4570G2
Dual operational amplifier
– +
OUT 1
–IN 1
–V CC
+V CC
OUT 2
1
2
3
4 5
+IN 1 –IN 2
+IN 2
– +
6
7
8
2
3
4
5
6
7
8
9
10
11
12
14
30
1 15
16
17
19
20
21
22
23
24
25
26
27
28
29
Le
v
e
l Shifter
Latch Circuit
Le
v
e
l Shifter
Latch Circuit
Control Circuit
R1
R2
R-COM1
R3
R4
R-COM2
R5
R6
R-COM3
R7
R-COM4
DATA
CK
Vss
L1
L2
L-COM1
L3
L4
L-COM2
L5
L6
L-COM3
L7
L-COM4
ST
VDD
VEE
IC301 : NJU7311AM
Analog function switch
to POWER (3)_CB20
Page 118 G8
to OPERATION (3)_CB806
Page 116 E3
to MAIN (1)_W273
Page 117 C9
to FL (3)_CB951
Page 124 J6
to FL (3)_CB956
Page 124 K6
DSP_CB561
P
age 111
C2