Sony STR-DB1070 / STR-DB870 Service Manual ▷ View online
49
STR-DB870/DB1070
IC1303
BU1924F-E2 (DIGITAL Board (AEP and UK models))
CLOCK
MANAGER
MODE CONTROL
INTERFACE
SERIAL
INPUT
INTERFACE
MULTI-FUNCTION
X8
OVER SAMPLING
DIGITAL
FILTER
MULTI-
LEVEL
DIGITAL
∑
MODULE
BPZ CONTROL
ZERO DETECT
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
2CH LPF
&
OUTPUT AMP
2CH LPF
&
OUTPUT AMP
2CH LPF
&
OUTPUT AMP
RST
SCKI
SCKO
BCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
LRCK
37
38
39
40
42
43
44
45
46
47
48
41
ZERO1
ZERO2
ZERO3
ZERO4
ZERO5
ZERO6
AGND
VCC
V
OUT6
V
OUT5
V
OUT4
V
OUT3
1
2
3
4
5
6
7
8
9
10
11
12
VOUT2
VOUT1
VCOM2
VCOM1
AGND6
VCC6
AGND5
VCC5
AGND4
VCC4
AGND3
VCC3
13
14
15
16
17
18
19
20
21
22
23
24
ML
MC
MDI
MDO
NC
NC
VCC0
AGND0
VCC1
AGND1
VCC2
AGND2
36 35 34 33
32
31
30
29
28
27
26
25
IC1201
PCM1604Y/2K (DIGITAL Board)
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
IC1406
SN74HC153ANS
(DIGITAL Board)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
2G
2C3
2C2 2C1 2C0
2Y
VCC
2C3
2C2 2C1 2C0
STROBE
2G
OUTPUT
2Y
A
SELECT
DATA INPUTS
B
B
A
A
B
B
A
A
1G
1C3 1C2
1C1 1C0
1Y
STROBE
1G
B
SELECT
1C3 1C2
1C1
1C0
OUTPUT
1Y
GND
DATA INPUTS
50
STR-DB870/DB1070
IC1407
TC7WH157FU (TE12R)
(DIGITAL Board)
SELECT 11
1
1A
2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
IC1408
LC89056W-E (DIGITAL Board)
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
XSEL
31
DGND
DO
CSFLAG
F0
F1
F2
VF
ERR9P
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
INPUT
CIRCUIT
DATA
DEMODULATOR
PLL
X’ TAL
IC1409
TC7WH74FU (TE12R)
(DIGITAL Board)
6
CLR
7
PR
8
VCC
5
Q
R
S
Q
3
Q
2
D
4
GND
1
CK
Q
D
C
IC1601
ML9261MB (DISP Board)
1
2
3
4
5
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
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
RESET
60BIT
SHIFT
SHIFT
REGISTER
60BIT
REGISTER
OUTPUT
CIRCUIT
CIRCUIT
C
C
SO
R
R
SI
HVO25
HVO24
HVO23
HVO22
HVO21
HVO20
HVO19
HVO18
HVO17
HVO16
HVO15
HVO14
HVO13
HVO12
HVO11
HVO10
HVO9
HVO8
HVO7
HVO6
HVO5
HVO4
HVO3
HVO2
HVO1
VDISP
VDD
DIN
DOUT
CLK
LS
CL
CHG
L-GND
D-GND
HVO26
HVO27
HVO28
HVO29
HVO30
HVO31
HVO32
HVO33
HVO34
HVO35
HVO36
HVO37
HVO38
HVO39
HVO40
HVO41
HVO42
HVO43
HVO44
HVO45
HVO46
HVO47
HVO48
HVO49
HVO50
HVO51
HVO52
HVO53
HVO54
HVO55
HVO56
HVO57
HVO58
HVO59
HVO60
IC1602
NJU3719L (DISP Board)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
LATCH
CIRCUIT
SHIFT
REGISTER
CONTROL
CIRCUIT
PARALLEL
DATA
OUTPUT BUFFER
P11
P12
P13
P14
P15
P16
P17
VSS
P18
P19
P20
P21
P22
P23
P24
VDD
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
CLR
STB
CLK
DATA
51
STR-DB870/DB1070
6-31.
IC PIN FUNCTION DESCRIPTION
•
DIGITAL BOARD IC1201 PCM1604Y/2K (D/A CONVERTER)
Pin No.
Pin Name
I/O
Description
1 to 6
ZER01 to ZER06
I
Not used (open)
7
AGND
—
Ground terminal (for analog)
8
VCC
—
Power supply terminal (+5V)
9
VOUT6
O
Analog negative signal output to the line amp (IC1261)
10
VOUT5
O
Analog negative signal output to the line amp (IC1261)
11
VOUT4
O
Analog negative signal output to the line amp (IC1241)
12
VOUT3
O
Analog negative signal output to the line amp (IC1241)
13
VOUT2
O
Analog negative signal output to the line amp (IC1221)
14
VOUT1
O
Analog negative signal output to the line amp (IC1221)
15
VCOM2
O
Common voltage output terminal
16
VCOM1
O
Lerge external capacitor is used to reduce power supply noise
17
AGND6
—
Ground terminal (for analog)
18
VCC6
—
Power supply terminal (+5V)
19
AGND5
—
Ground terminal (for analog)
20
VCC5
—
Power supply terminal (+5V)
21
AGND4
—
Ground terminal (for analog)
22
VCC4
—
Power supply terminal (+5V)
23
AGND3
—
Ground terminal (for analog)
24
VCC3
—
Power supply terminal (+5V)
25
AGND2
—
Ground terminal (for analog)
26
VCC2
—
Power supply terminal (+5V)
27
AGND1
—
Ground terminal (for analog)
28
VCC1
—
Power supply terminal (+5V)
29
AGND0
—
Ground terminal (for analog)
30
VCC0
—
Power supply terminal (+5V)
31, 32
NC
—
Not used (open)
33
MDO
O
Serial data output to the system control (IC1703)
34
MDI
I
Serial dara input from the system controller (IC1703)
35
MC
I
Clock signal input from the system controller (IC1703)
36
ML
I
Latch signal input from the system controllrt (IC1703)
37
RST
I
Reset signal input from the system controller (IC1703)
38
SCKI
I
Serial clock signal input from the audio DSP2 (IC1601)
39
SCKO
O
Serial clock signal output terminal Not used (open)
40
BCK
I
Bit clock signal input from the audio DSP2 (IC1601)
41
LRCK
I
L/R sampling clock signal input from the audio DSP2 (IC1601)
42
TEST
I
Test data input terminal (fixed at “L” )
43
VDD
—
Power supply terminal (+5V)
44
DGND
—
Ground terminal (for digital)
45
DATA1
I
Audio serial data1 input from the audio DSP2 (IC1601)
46
DATA2
I
Audio serial data2 input from the audio DSP2 (IC1601)
47
DATA3
I
Audio serial data3 input from the audio DSP2 (IC1601)
48
ZER0A
I
Zero input detect terminal Not used (open)
52
STR-DB870/DB1070
•
DIGITAL BOARD IC1408 LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER)
Pin No.
Pin Name
I/O
Description
1
DISEL
I
Input data select terminal (fixed at “L”)
2
DOUT
O
EIAJ data and parity output terminal Not used (open)
3
DIN0
I
Amp integrate data input from the select switch (IC1406)
4
DIN1
O
Amp integrate data input terminal Not used (fixed at “L”)
5
DIN2
I
Amp integrate data input terminal Not used (fixed at “L”)
6
DGND
—
Ground terminal (for digital)
7
DVDD
—
Power supply terminal (+5V) (for digital)
8
R
I
Input terminal for VCO generator band adjustment
9
VIN
I
Input terminal for VCO self running frequency set
10
LPF
O
External LPF for PLL is connected to this terminal
11
AVDD
—
Power supply terminal (+5V) (for analog)
12
AGND
—
Ground terminal (for analog)
13
CKOUT
O
Clock signal output to the audio DSP1, 2 (IC1501, 1601)
14
BCK
O
Bit clock signal output to the A/D converter (IC1101) and audio DSP1 (IC1501)
15
LRCK
O
L/R sampling clock signal output to the A/D converter (IC1101) and audio DSP1, 2
(IC1501, 1601)
(IC1501, 1601)
16
DATAO
O
Audio data output to the system controller (IC1703) and audio DSP1 (IC1501)
17
XSTATE
O
Clock status flag output to the system controller (IC1703)
18
DGND
—
Ground terminal (for digital)
19
DVDD
—
Power supply terminal (+5V) (for digital)
20
XMCK
O
Clock signal outout to the A/D converetr (IC1101) (24.576MHz)
21
XOUT
O
Clock output terminal Not used (open)
22
XIN
I
Clock input from the clock oscillator (IC1410) (24.576MHz)
23
EMPHA
O
Emphasis monitor output terminal “H”: on Not used (open)
24
AUDIO
O
Audio transfer signal output to the audio DSP1 (IC1501)
25
CSFLAG
O
Not used (open)
26 to 29
F0/P0/C0 to F3/P3/C3
O
Terminal for check Not used (open)
30
DVDD
—
Power supply terminal (+5V) (for digital)
31
DGND
—
Ground terminal (for digital)
32
AUTO
O
Not used (open)
33
BPSYNC
O
Not used (open)
34
ERROR
O
Error mute output to the system controller (IC1703) and audio DSP1 (IC1501)
35
DO
O
Data output to the system controller (IC1703)
36
DI
I
Data input from the system controller (IC1703)
37
CE
I
Chip enable signal input from the system controller (IC1703)
38
CLK
I
Clock signal input from the system controller (IC1703)
39
XSEL
I
Clock select terminal (fixed at “H”)
40, 41
MODE0, MODE1
I
Mode setting input terminal (fixed at “L”)
42
DGND
—
Ground terminal (for digital)
43
DVDD
—
Power supply terminal (+5V) (for digital)
44, 45
DOSEL0, DOSEL1
I
Data format select signal input terminal (fixed at “L”)
46
CKSEL0
I
System clock select signal input terminal (fixed at “L”)
47
CKSEL1
I
System clock select signal input from the system controller (IC1703)
48
XMODE
I
Reset signal input from the system controller (IC1703)
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