Yamaha DSP-AX1, Service Manual

Page: 60 / 103

ABCD
E
F
G
H
1 2 3 4 5 6
IJ
K
L
M
N
7 8 9
10
DSP-AX1/RX-V1
L
CENTER
REAR CENTER
FR
ONT L
REAR L
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
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
11.4 11.4
4.9 4.9
4.9
0
0
-11.4
-11.4
4.4
4.8
3.6
4.3
3.7
-11.5
0
0
0
0 0
0
11.4
11.4
11.4
0 0
0
11.4
0 0
0
11.4
11.4
-11.5
0 0
0
-11.5
0 0
0
-11.5
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
4.9 -11.5
11.4
11.4
4.9
0
0
-11.5
-11.5
-11.5
0 0
-11.5
-11.5
11.4
-11.5
0
0
0
0 0 0 0
0
0 0
0
0
0 0
0
-11.5
11.4
11.4
-11.5 -11.5 11.4
-11.4
0 0
4.8
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 0
0
0 0
0 0
0
0 0
0
0 0
0
0
0
0
0
-11.6
-11.6
4.8
-0.1 -5.7
-5.7
-5.1
-5.1 5.4
5.4
4.8
4.8
4.8
4.8
0.3
0.3
0.3
0.3 0.3
0
4.9
4.9
0.3
4.8
4.9
4.8
-11.2
-11.2
4.4
4.9
4.8
-11.2
-11.2
4.4
4.9
4.8
-11.2
-11.2
4.4
4.9
3.6
4.3
4.3
4.3
4.9
4.8
-11.2
-11.2
4.3
4.8
0
0 0
5.4
-5.7
-11.5
-11.6
5.4
11.3
-11.5
-11.6
11.5
11.5
0
0 0
0
0
-11.6
11.5
11.5
11.5
11.5
11.5
11.5
11.5
4.8
4.4
0
0
0 0
0
11.5 -11.6
0 0 0
0
0
5.1
5.1
-5.2
5.1
4.8
0
0
4.8
0
0 0 0 0 0
0
5.1
5.1
-5.2
5.1
4.8
0
0
4.8
0
0 0 0
0 0
0
5.1
5.1
-5.2
5.1
4.8
0
0
4.8
0
0 0 0
0 0
0
0 0
0
0
0
0
5.1
5.1
-5.2
5.1
4.8
0
0
4.8
4.9 4.9 4.9 4.9 4.9 4.9
4.9
1.3 0.3 0.5 4.8
0 0
0 0 0
0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.8
4.9
4.9
4.9
4.9
4.9
4.9
4.5
2.3
1.8
4.9
0
0
0
0
-0.1
0
4.9
4.9
0
0
0
4.9
4.8
4.8
4.8
4.9
4.9
-0.1
0
0
0
0
4.9
0
0
0
4.9
-0.1
4.9
0
0
4.9
0
0.5
0 0 0 0 0 0 0
4.9 4.9 4.9 4.9 4.9 4.9 4.9
4.9
0 0
0 4.9
4.9 4.9
5.6
5.6
0.6
0.6
0
0 0
0
0
0
0
0.7
4.8
7.1
6.4
6.4
11.3
11.3
10.6
11.3
4.9
-8.9
4.9
0
9.2
4.8
9.7
-9.5 -4.7
2.4
7.3
0
4.8
0 0
0
0 0 0
0 0
0
5.1
5.1
-5.2
5.1 4.8
0
0
11.4
11.4
-11.5
0
0
0 0 0 0
0 0 0
0
11.1
-11.2
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
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 0
y
u
-
A
u
-
B
MAIN CPU
LEVEL CONTROL
ZONE 2 VOLUME
PHONE EQ AMP
CIRCUIT CHANGES BY MARKET.
X : NOT USED
■
SCHEMA
T
IC
DIAGRAM
(FUNCTION)
*
All voltage are measured with a 10M
Ω
/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.
Point
y
(Pin 13 of IC27)
V : 2V/div, H : 50 nsec/div DC, 1 : 1 probe
0V
Point
u
-A (+MB : Pin2 of CB8)
Point
u
-B (/RES : Collector of Q8)
V : 2V/div (+ MB), V : 2V/div (/RES) DC, 1 : 1 probe, H : 1 sec/div
0V 0V
+ MB
/RES
A
C
CORD ON
A
C
CORD OFF
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
LA
TCH
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
IC11 : LC78211 Analog Function Switch
IC2, 3 : TC9274N-013 Analog Function Switch
IC1 : NJM2068MD-T1 IC4~8, 10, 12~15, 22~26 :
µ
PC4570G2
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
IC21 : LC78212 Analog Function Switch
L6
3
LCOM2
8
L8
LCOM3
L7
9 10 11
V
DD
19
V
SS
16
V
EE
12
RES
18
S
17
L2 L3 L1
1 2 3
L5
6 7
LEVEL
SHIFTER
LA
TCH
SHIFT
REGISTER
R2 RCOM1 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
L4
5
LCOM1
4
VSS GND CK
VDD STB
D
ATA
S1 S2 S3 S4 S5 S6 S7 S8 S9
S10 S1
1
S12 S13 S14 S15 S16 S17
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S1
1
S12 S13 S14 S15 S16 S17
2 1 3 4 5 7 6 8 9
10 11 12 13 14 15 16 17 18 19 20 21
41 42 40 39 38 36 37 35 34 33 32 31 30 29 28 27 26 25 24 23 22
IC9 : LC7536-Y Electric Controlled Volume
L5dB IN
CONTROL
S
1 12
CE
19
CLK
17
DI
18
LA
TCH
LEVEL
SHIFT
SHIFT
REGISTER
L
CT1
3
L
CT2
4
LV
M
9
5
L5dB OUT
6
L1dB IN
8
L1dB OUT
R5dB IN
30 28 27 22
23
R1dB OUT
25
R1dB IN
26
R5dB OUT
R CT1 R CT2 R VM
13
VDD
21
VCC
14
VSS
10
VEE
2
7
11
15
16
20
24
29
NC
IC16~20 : CS3310-KS Stereo Digital Volume Control
MUX MUX
CONTR
OL
REGISTER
SERIAL T
O
P
ARALLEL
REGISTER
8
8
8
8
16
16 15
14 8 1 2 3 7 6 11
10
9
12
13
4
5
AINL
A
GNDL
A
O
UTL
MUTE ZCEN CS S
D
ATA
I
S
D
ATA
O
SCLK A
O
UTR
A
GNDR
AINR
V
A
+
V
A–
VD+
DGND
IC31 : ADM202JRN-REEL7 RS-232 Line Drive/Reciever
R
1
R
2
T
2
T
1
T
1
OUT
T
1
IN
7
10
T
2
OUT
T
2
IN
12
8
R
1
IN
R
1
OUT
R
2
IN
R
2
OUT
GND
5
6
4
C
2
–
C
2
+
V–
3
2
1
C
1
–
C
1
+
V+
V
CC 16
+5V T
O
+10V
V
O
L
T
A
GE DOUBLER
+10V T
O
–10V
V
O
L
T
A
GE INVER
TER
11
14
13
9
15
RS-232 INPUTS
TTL/CMOS OUTPUTS
RS-232 OUTPUTS
TTL/CMOS INPUTS
E-92/J-84
P-E97/J89
F-2
P-E91/J83
L-7
P-E91/J83
L-8
P-E91/J83
L-6
P-E97/J89
A-6
P-E96/J88
G-1
P-E95/J87
I-5
P-E95/J87
H-5
P-E93/J85
D-2
P-E95/J87
F-1
P-E94/J86
I-4
P-E100/J92
C-2
P-E100/J92
B-6
P-E94/J86
I-5
P-E97/J89
C-4
P-E97/J89
C-3