Sony STR-K760P Service Manual ▷ View online
25
25
STR-K760P
3-15. SCHEMATIC DIAGRAM – FRONT PANEL SECTION –
C100
C101
C108
C109
C111
C112
C115
C132
C133
C134
C135
C136
C137
C138
C139
C140
C141
C142
C143
R150
S100
S101
S102
S103
S104
S110
S111
S112
S113
S114
S115
C155
C156
L103
S152
C144
C110
R161
R101
R111
R121
R102
R103
R112
R113
R122
R104
R114
R105
R115
R173
R174
RV102
C114
R153
S151
R133
S135
S134
S133
S132
S131
S123
S122
R123
R124
R136
R132
R134
R135
R199
R198
R175
CNS100
C151
R154
C157
CNP103
CNP101
IC102
L101
C153
C152
CNP104
CNP102
C150
L102
C154
FL101
D105
D104
D103
D102
R172
C105
IC101
IC100
S125
S121
S120
S105
R106
R107
S106
S107
0.1
0.1
50V
0.1
50V
50V
0.1
50V
100p
50V
100p
50V
10
50V
220p
220p
220p
220p
220p
220p
220p
220p
220p
220p
220p
220p
82k
0.1
50V
0.1
50V
JW
0.1
50V
2200p
50V
220
1k
1k
1k
2.2k
2.2k
2.2k
2.2k
2.2k
4.7k
4.7k
10k
10k
JW
JW
ENCODER, ROTARY
0.1
50V
50V
100
2.2k
2.2k
4.7k
10k
1k
2.2k
4.7k
1
1
10
19P
10
50V
10
0.1
50V
2P
3P
RPM7240-H9
JW
220p
50V
220p
50V
3P
3P
0.1
50V
JW
220p
SLR-325DCT31
SLR-325DCT31
SLR-325DCT31
SLR-325DCT31
JW
10
50V
TC74ACT08P
IC PT6315
22k
47k
26
26
STR-K760P
• IC BLOCK DIAGRAMS
38
37
36
23
24
1
2 3
4
5
44
8 9 10
46
17
22
21
20
30
35
25
26
27
28
29
32
33
34
16
45
13
14
15
47
40
41
48
CL
39
XSEL
CE
DI
EMPHA
AUDIO
DISEL
DOUT
DINO
DINI
DIN2
6
DGND
7
DVDD
11
AVDD
12
AGND
DOSEL0
R
VIN
LPF
CKSEL0
XSTATE
18 DGND
19 DVDD
XIN
XOUT
XMCK
DVDD
31
DGND
DO
CSFLAG
F0/P0/C0
F1/P1/C1
F2/P2/C2
VF/P3/C3
AUTO
BPSYNC
ERROR
DATAO
DOSEL1
CKOUT
BCK
LRCK
CKSEL1
MODE0
MODE1
42
DGND
43
DVDD
XMODE
TIMING
MICROCOMPUTER
INTERFACE
SAMPLING
FREQUENCY
C BIT
DETECT
PA/PB
DETECT
LOCK
DETECT
SYSTEM
RESET
MODE
SELECT
INPUT
CIRCUIT
DATA
DEMODULATOR
PLL
CLOCK
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
64K x 16
MEMORY
ARRAY
SENSE AMP
&
WRITE
PRIVER
HIGH
BYTE
BYTE
I/O
BUFFER
LOW
BYTE
I/O
BUFFER
CHIP ENABLE
BUFFER
WRITE ENABLE
BUFFER
OUTPUT ENABLE
BUFFER
ROW/COLUMN
DECODER
BYTE ENABLE
BUFFER
1
A3
A2
A1
A0
CS
I/O 0
I/O 1
I/O 2
I/O 3
VDD
VSS
I/O 4
I/O 5
I/O 6
I/O 7
WE
A15
A14
A13
A12
NC
A4
A5
A6
A7
OE
BHE
BLE
I/O 15
I/O 14
I/O 13
I/O 12
VSS
VDD
I/O 11
I/O 10
I/O 9
I/O 8
NC
A8
A9
A10
A11
NC
8
VCC
7
TEST
6
SCL
5
SDA
1
A0
2
A1
3
A2
4
GND
ADDRESS
DECODER
DECODER
SLAVE WORD
ADDRESS REGISTER
DATA
REGISTER
16 K bit EEPROM ARRAY
CONTROL CIRCUIT
POWER SUPPLY
VOLTAGE DETECTION
HIGHT VOLTAGE
GENERATOR
11 bit
8 bit
11 bit
STOP
START
ACK
IC1101 LC89056W-E (DIGITAL BOARD)
IC1202 IS61LV6416-10TLT (DIGITAL BOARD)
IC1602 PST3629NR (DIGITAL BOARD)
IC1604 BR24L16F-WE2 (DIGITAL BOARD)
VREF
5
4
3
2
1
OUT
VDD
GND
NC
CD
27
STR-K760P
IC100 PT6315 (DISPLAY BOARD)
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
SEG5/KS5
SEG6/KS6
SEG7/KS7
SEG8/KS8
SEG9/KS9
SEG10/KS10
SEG20/GRID9
SEG21/GRID8
SEG22/GRID7
SEG23/GRID6
SEG24/GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
IC101 TC74ACT08P (DISPLAY BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1A
1B
1Y
2A
2B
2Y
GND
VCC
4B
4A
4Y
3B
3A
3Y
28
STR-K760P
IC201 M61527FP (MAIN BOARD)
INR10/RECR4
AVEE
INL9
INR9
INL8
INR8
INL7
INR7
SLIN2
INL6
INIR6
INL5
INR5
INL4
INR4
INL3
NC
RSELOUT
GND
NC
SWVIN
LATCH
CLOCK
DGND
SLVIN
SWIN2
CIN2
SWSELOUT
SROUT
LIN1
SRIN2
NC
GND
GND
AVCC
NC
RIN1
SWIN1
DVDD
RIN2
LIN2
GND
BALANCE R/-
BALANCE R/+
SRSELOUT
SRIN1
ROUT
LOUT
CIN1
GND
INR1
INL1
INR2
RECR2
INR3
BALANCE L/+
SWOUT
COUT
NC
BALANCE L/-
RVIN
CVIN
CSELOUT
SLSELOUT
GND
SLOUT
NC
SRVIN
SLIN1
LVIN
LSELOUT
GND
RECL1
RECR1
RECL2
RECL3
RECR3
INL10/RECL4
DATA
INL2
MCU I/F
CLK
DATA
LATCH
80
78
77
76
75
74
73
72
71
70
69
68
67
66
65
79
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
16 17
18
19
20
21
22
23
24
IC501 STK350-230 (MAIN BOARD)
1
2
3
4
5
6
7
8
9
TR3
R1
R2
TR4
TR6
TR7
R4
R9
TR5
TR1
TR2
R6
D4 D3
R7
R8
TR8
D1 D2
R5
R3
INPUT
NF
-VEOUT
+VEOUT
V
SS
GND
V
CC
SUB
IC701, 702
µ
PC2581V-S (MAIN BOARD)
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
IC203 NJM2279D (VIDEO BOARD)
VIN3
V-
14
SW2
13
VIN1
12
MUTE1
11
VOUT1
10
NC
9
V+
8
1
SW1
2
AMP
VIN2
3
MUTE2
4
VOUT2
5
GND2
6
GND1
7
AMP
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