Sony STR-DE875 / STR-DE975 Service Manual ▷ View online
29
STR-DE875/DE975
3-20. IC BLOCK DIAGRAMS
IC1201 BU1924F (DIGITAL BOARD)
IC1301 LC89056W-E (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
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
IC1302 TC74ACT153AF (EL)
(DIGITAL BOARD)
(DIGITAL BOARD)
IC1305 TC7WH74FU (TE12R)
(DIGITAL BOARD)
(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
6
CLR
7
PR
8
VCC
5
Q
R
S
Q
3
Q
2
D
4
GND
1
CK
Q
D
C
30
STR-DE875/DE975
IC1401 PCM1800E/2K (DIGITAL BOARD)
IC1451 PCM1604Y/2K (DIGITAL BOARD)
SINGLE-END
DEFERENTIAL
CONVERTER
REFERENCE
SINGLE-END
DEFERENTIAL
CONVERTER
DIGITAL
MODULATOR
DIGITAL
MODULATOR
1/64
DECIMATION
FILTER
&
LOW-CUT
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
LIN
V REF 1
REFCOM
V REF 2
RIN
RSTB
FMT0
BYPASS
FMT1
MODE1
MODE0
FSYNC
1
2
3
4
5
6
8
7
9
11
10
12
AGND
VCC
C PR
C NR
C PR
C NR
DGND
SYSCL
K
DOUT
BCK
LRCK
VDD
24
23
22
21
20
19
17
16
15 14 13
18
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
31
STR-DE875/DE975
IC102 NJU3719L
(DISPLAY BOARD)
(DISPLAY 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
IC302 TC9273N-006
(MAIN BOARD)
(MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
IC501
µ
PC2581V (MAIN BOARD)
IC551
µ
PC2581V (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
IC601 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
IC201 NJM2296D (S-VIDEO BOARD)
IC202 NJM2296D (S-VIDEO BOARD)
IC251 NJM2296D (VIDEO BOARD)
IC202 NJM2296D (S-VIDEO BOARD)
IC251 NJM2296D (VIDEO BOARD)
9
S5
S6
S7
S4
S1
S2
S3
Vout1
Vout2
Vout3
V-
GND
SW3
SW2
SW1
SW5
SW4
Vin1
Vin2
Vin3
Vin4
Vin5
V+
10
11
12
13
14
15
16
1
5
2
3
4
6
7
8
32
STR-DE875/DE975
IC203 NJM2145D (S-VIDEO BOARD)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
INH
INH
INPUT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
VCC
OUT1
IN4
IN3
IN2
OUT3-1
OUT3-2
OUT3-3
GND
INH1
INH2
IN1
NC
OUT2-1
OUT2-2
OUT2-3
IC252 MB90089PF-G-237-BND (VIDEO BOARD (STR-DE975))
ANALOG
SWITCH
SERIAL
INPUT
CONTROL
VIDEO
SIGNAL
GENERATOR
CIRCUIT
4 FSC
CLOCK
OSCILLATOR
CIRCUIT
FOR
COLOR
BURST
BURST
DATA
OUTPUT
CONTROL
NTSC/PAL
SIGNAL GENERATOR
CIRCUIT
H/V
SEPARATE
CIRCUIT
DISPLAY
MEMORY
CONTROL
CGROM
CHARACTER
VRAM
VIDEO PHASE SYNC
YIN
CIN
VIN
HSYNC
VSYNC
EXS
VBLK
FSCO
AVCC
XS
EXHSYN
EXVSYN
VSS
1
2
3
10
11
8
6
5
4
9
12
13
14
YOUT
AVSS
COUT
VOUT
CS
SIN
SCLK
VOC0
VOC1
VOC2
VOB
XD
EXD
27
26
25
28
24
23
22
20
19
18
17
16
15
VCC
7
TEST
21
DOT-CLOCK
GENERATOR
CIRCUIT
IC253 BA7622 (VIDEO BOARD (STR-DE975))
1
2
3
4
8
7
6
5
GND
IN1
IN2
IN3
OUT1
OUT2
OUT3
VCC
75OHM
DRIVER
75OHM
DRIVER
75OHM
DRIVER
Click on the first or last page to see other STR-DE875 / STR-DE975 service manuals if exist.