MHC-SV7AV, ST-SV7 - Sony Audio Service Manual (repair manual). Page 13

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ST-SV7
13
13
Q901
R908
R538
R530
R956
R518
R516
R515
R517
R501
R963
R964
C962
C961
C915
D912
R903
C910
R904
R905
R906
C937
R549
C506
R558
R550
D944
D945
R532
R556
C942
C943
C561
EPT901
R524
C972
CN503
CN501
R523
R522
C562
R520
R519
R
5
0
8
C
5
0
1
C
5
0
2
C
5
0
3
X
5
0
1
R542
R541
R540
R539
C508
C509
R548
R521
R529
R525
D
9
2
1
CN5042
CN502
CN505
CN5032
R958
R959
R961
R962
JW95
X
5
0
2
Q503
Q502
R557
C510
D
9
1
3
C909
EPT902
R
5
2
8
R
5
2
7
R
5
2
6
R
5
3
3
R
5
3
1
R
5
3
4
R
5
3
5
R
5
3
6
R
5
3
7
R
5
0
2
R
5
0
3
R
5
0
4
R
5
0
5
R
5
0
6
R
5
0
7
R
5
0
9
R
5
1
2
R
5
1
3
R
5
1
4
R545
R543
R
5
1
0
R957
D943
C927
C928
IC501
R544
R546
CN506
D911
C919
R92
R44
IC953
C505
R511
C504
2SB734-3
1k
100
100
100
100
100
1k
100
100
5.6k
5.6k
10
50V
0.1
100
35V
MTZJ-T-
72-30B
10
10
50V
10k
100
100
0.1
3.3k
4.7
50V
1M
100k
1SS133T
1SS133T
47k
47k
470
6.3V
0.1
0.1
47k
0.1
10P
4P
100
10k
10000p
10k
10k
1
0
k
1
8
p
1
5
p
0
.1
3
2
.7
6
8
 k
H
z
47k
47k
100
100
10
50V
0.1
4.7k
100
100
100
1
S
S
1
3
3
T
-7
2
9P
19P
17P
15P
100
100
2.2k
2.2k
1
6
M
H
z
BN1A4M
BN1A4M
22k
4.7
50V
M
T
Z
J
-T
-7
2
-5
.6
B
100
50V
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
3
3
0
k
1
0
0
1
0
0
1
0
0
10k
10k
3
3
0
100
1SS133T
0.022
0.022
M30622MGA-A69FP
4.7k
11P
11ES2
0.1
100
100
BA8274K
2200
6.3V
10k
0.1
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
20
S
T
-M
U
T
E
S
T
-C
E
S
T
-D
O
U
T
S
T
-D
IN
S
T
-C
L
K
M-RESET
ST-CLK
ST-DOUT
ST-DIN
ST-CE
ST-MUTE
M-RESET
I-D
A
T
I-C
L
K
TUN
STE
STE
TUN
EX-IN
EX-OUT
EX-LAT
EX-CLK
E
X
-C
L
K
E
X
-L
A
T
E
X
-O
U
T
E
X
-IN
AB1
AB2
AB1
AB2
JOG2-B
JOG2-A
JOG1-B
JOG1-A
VOLA
VOLB
KEY1
KEY1
JOG2-B
JOG2-A
JOG1-B
JOG1-A
VOLA
VOLB
CC1
CC2
CC3
CC4
CC5
CC6
CC5
CC6
I-CLK
I-DAT
DD1
DD4
DD2
DD3
M-RESET
I-DAT
I-CLK
E
1
E
2
E
3
E
4
E
5
E
6
E7
E8
E9
E
1
0
E1
1
E
1
2
E
1
3
E
1
4
CC1
CC4
CC3
CC2
SIRCS
DBFB FEEDBACK
POWER KEY
P
O
W
E
R
 K
E
Y
AB20
AB21
S
IR
C
S
I-CLK
I-DAT
*
CL
MC D0
MC D1
CE
A+10V
TUNED
STEREO
L-CH
ANALOG-GND
R-CH
MUTE
MRESET
I2C-CLK
I2C-DATA
VCD L-IN
VCD R-IN
V-MUTE
EVER+5V
POWER KEY
VF
VF
DBFB FEEDBACK
EXP-CLK
EXP-LAT
EXP-OUT DATA
EXP-IN DATA
VOLA
VOLB
KEY0 TA
AC LOW
AC LOW
AC HIGH
AC HIGH
UNREG
VP
CT
JOG1-A(FUNCTION)
JOG1-B(FUNCTION)
AC-LOW
AC-LOW
CD A-GND
CD D(M)-GND
UNREG 
TC M-GND
DISPLAY/STANDBY KEY
KEY1
JOG2-A
JOG2-B
JOG1-A
JOG1-B
VOLA
VOLB
TC M-GND
TC D-GND
CD D(M)-GND
CT
HAKO-GND
JOG2-B(F-SELECT)
JOG2-A(F-SELECT)
HAKO-GND
(CHASSIS)
(CHASSIS)
V
S
S
V
C
C
N
M
I
S
T
-
C
E
S
T
-D
O
U
T
S
T
-D
IN
S
T
-C
L
K
MODEL-IN
R
D
S
-
IN
T
R
D
S
-
D
A
T
A
G
N
D
S
IR
C
S
D
IG
-
C
L
K
D
IR
-U
N
L
O
C
K
D
IR
-
C
S
DSP-CS
A
M
P
-D
A
T
A
A
M
P
-C
L
K
A
M
P
-L
A
T
S
O
F
T
-
T
E
S
T
DSP-DECODE
STEREO
TUNED
D
IR
-
X
S
T
A
T
E
P
O
W
E
R
 K
E
Y
D
IS
P
L
A
Y
 K
E
Y
E
X
P
-
IN
 D
A
T
A
E
X
P
-O
U
T
 D
A
T
A
E
X
P
-L
A
T
E
X
P
-
C
L
K
C
N
V
S
S
AVSS
VREF
AVCC
SPEC-IN 
V
C
C
V
S
S
DSP-ACK
N
O
-
U
S
E
VF
VF
-VP
D-GND
IIC-CLK
IIC-DATA
D+3.3V
SIRCS
RESET
D-GND
EVER+5V(SIRCS)
GND
RTS1
NC
+5V
CNVSS
RESET
GND
TXD1/CAN'T USE
CLK1/SQ-CLK
RXD1/SQ-DATA-IN
D-GND
D+5V
IIC-CLK
IIC-DATA
(2/2)
SYSTEM CONTROL 3
SYSTEM CONTROL 2
SYSTEM CONTROL 1
(FOR TEST)
(FOR TEST)
(CHASSIS)
M-RESET
S
T
-
M
U
T
E
X
IN
X
O
U
T
R
E
S
E
T
X
C
O
U
T
X
C
IN
D
S
P
-R
X
D
IG
-
T
X
AC-
CUT
V-MUTE
C
O
D
E
C
-
S
M
U
T
E
D
IR
-
R
X
L
IN
E
-
M
U
T
E
SYSTEM CONTROLLER
-28V REGULATOR
AC OFF
DRIVER
MUTING
MUTING
CONTROL
SWITCH
FM/AM
TUNER
UNIT
*
AM
ANTENNA
THE ASSEMBLED
BLOCK
SUPPLIED WITH
*
II
C
 C
L
K
IIC DATA
NO-USE
NO-USE
NO-USE
NO-USE
(FROM MCE-SV7)
(TO TA-SV7AV)
(TO TA-SV7AV)
(EA)
(SP,TH)
1k
150
* R546
FM
75
NC
LX
SX
G
VC
LY
SY
NC
BUS BUFFER
5-3.
SCHEMATIC  DIAGRAM  – MAIN Board (2/2) –
 See page 11 for Waveforms.
(Page 12)
(Page 19)
(Page 12)
(Page 12)
The components identified by mark 
0
 or dotted
line with mark 
0
 are critical for safety.
Replace only with part number specified.
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