Sony STR-DE675 Service Manual ▷ View online
25
STR-DE675
3-16. IC BLOCK DIAGRAMS
IC1101 LC89056W-E (DIGITAL BOARD)
IC1103 TC74ACT153AF(EL) (DIGITAL BOARD)
IC1301 BU1924F (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
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
26
STR-DE675
IC701
µ
PC2581V (MAIN BOARD)
IC702
µ
PC2581V (MAIN BOARD)
IC501 STK350-230 (MAIN BOARD)
IC101 TC74VHC08AF(EL) (DISPLAY BOARD)
IC1801 NJM2279D (S-VIDEO BOARD)
IC1802 NJM2279D (S-VIDEO BOARD)
IC1802 NJM2279D (S-VIDEO BOARD)
IC103 NJM2296D (VIDEO 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
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
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
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
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
IC1605 NJM2103M-TE2 (DIGITAL BOARD)
1
2
3
4
5
6
7
8
V+
VSB/SESIN
VSA
RESET
GND
OUTC
VSC
CT
VREF
+
–
–
+
–
+
–
+
Q
R
S
27
STR-DE675
3-17. IC PIN FUNCTION DESCRIPTIONS
• IC1601 MB90478PF-G-101-BND (SYSTEM CONTROL)
Pin No.
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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
I
I
O
O
I
O
O
O
O
O
—
O
O
O
O
O
O
I
O
O
O
O
—
I
O
I
O
I/O
O
O
O
O
I
I
—
—
—
I
I
I
I
—
I
I
I
O
I
I
—
—
Pin Name
DATAO
GP9
BST
HCS
HACN
XRST
PM
PD
SMUTE
CDT1
VSS
SCL
CS
DATA
CLK
LATCH
MUTING IN
HDOUT
HDIN
HCLK
F.MUTE
AC MUTING
VCC5
ANA/DIG
DCS LED
HP DETECT
FLASH2
SP SWITCH/FLASH1
EQ
MODE
2CH
AFD
—
—
AVCC
AVRH
AVSS
A/D0
A/D1
A/D2
A/D3
VSS
RDS SIGNAL
MODEL
VERSION
MULTI CH LED
STOP
GND (F)
MD0
MD1
Description
Audio data signal input from DIR
GP9 signal input from DSP
BST signal output to DSP
HCS signal output to DSP
HACN signal input from DSP
Reset signal output to DSP
PM signal output to DSP
Power down signal output to AUDIO CODEC
Muting signal output to AUDIO CODEC
Control data signal output to AUDIO CODEC
Ground
Clock signal output to AUDIO CODEC
Chip select signal output to AUDIO CODEC
Control data signal output to the sound processor
Clock signal output to the sound processor
Latch signal output to the sound processor
Muting signal output to the sound processor
HDOUT signal input from DSP
HDIN signal output to DSP
Clock signal output to DSP
Muting signal output
Muting signal output to the power amplifier
Power supply
Muting and error signal input
DCS LED control signal output
Headphone switch detect signal input
Terminal for FLASH programming
Speaker ON/OFF switch signal input / Terminal for FLASH programming
EQ LED control signal output
MODE LED control signal output
2CH LED control signal output
AFD LED control signal output
Not used
Not used
Analog power supply
Analog reference voltage input
Analog ground
Function key push signal input
Function key push signal input
Function key push signal input
Function key push signal input
Ground
RDS signal detect input
Version setting input (MODEL)
Version setting input (DESTINATION)
MULTI CH LED control signal output
AC off detect signal input
Terminal for FLASH programming (Ground)
Operation mode setting input
Operation mode setting input
28
STR-DE675
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
—
I
I
I
I
I
I
I
I
I
O
O
O
O
I
O
I
O
O
O
O
O
I
I
O
I
—
O
—
—
—
—
—
—
—
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
Pin Name
MD2
RDS CLOCK
RDS DATA
SIRCS
SLEEP
POWER KEY
JOG-
JOG+
VOL-
VOL+
DIN
CLK
STB
CONTROL A1 OUT
CONTROL A1 IN
POWER RELAY
PROTECTOR
HEADPHONE RELAY
WOOFER RELAY
REAR RELAY
CENTRE RELAY
FRONT RELAY
STEREO
TUNED
MUTING
DO
RSTX
SCLK
X1A
X0A
VSS
X0
X1
VCC3
—
SDATA
SLATCH
S1
S2
MUTING1
MUTING2
OPTICAL IN SELECT
XMODE
CKSEL 1
CLK
CE
DI
DO
ERROR
XSTATE
Description
Operation mode setting input
RDS clock signal input
RDS data signal input
Data signal input from the remote control sensor
Not used
Power switch key detect signal input
Jog dial signal input from the rotary encoder
Jog dial signal input from the rotary encoder
Volume signal input from the rotary encoder
Volume signal input from the rotary encoder
Data signal output to the FL tube driver
Clock signal output to the FL tube driver
Strobe signal output to the FL tube driver
Control A1 signal output
Control A1 signal input
Power relay control signal output
Protector status detect signal input
Headphone relay control signal output
Woofer relay control signal output
Rear speaker relay control signal output
Centre speaker relay control signal output
Front speaker relay control signal output
Stereo tuning signal input from the tuner
Tuning a frequency signal input from the tuner
Muting signal output to the tuner
Frequency data signal input from the tuner
System reset
Clock signal output to the tuner
Not used
Not used
Ground
Connection for a crystal resonator
Connection for a crystal resonator
Power supply
Not used
Data signal output to the tuner
Latch signal output to the tuner
Video select control signal output
Video select control signal output
Video muting control signal output
Video muting control signal output
Optical in selector control signal output
Reset signal output to DIR
CKSEL control signal to DIR
Clock signal output to DIR
Chip enable signal output to DIR
Data signal output to DIR
Data signal input from DIR
PLL error muting signal input from DIR
XSTATE data signal input from DIR
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