Sony DAV-HDX678WF / DAV-HDX975WF / HCD-HDX678WF / HCD-HDX975WF Service Manual ▷ View online
HCD-HDX678WF/HDX975WF
HCD-HDX678WF/HDX975WF
29
29
6-3. BLOCK DIAGRAM - TUNER/S-AIR Section -
A_SEL4
A_SEL5
A_SEL0
A_SEL1
A_SEL2
A_SEL3
AUDIO SELECTOR
IC411
R-CH
R-CH
72 ST_DI
MONO/
ST_DET
90
28
DC_CONT
70 ST_DO
69 ST_CLK
71 ST_CE
68 TUNED
69 ST_CLK
71 ST_CE
68 TUNED
R-CH
TUNER (FM/AM)
AM
FM ANT
AM ANT
L-CH
R-CH
DIN
TUNED
DO
CLK
CE
FM 75
Ω
COAXIAL
ANTENNA
4 Y3
2
3
Y2
Y
1 Y0
10
A
9
B
J405
J402 (2/2)
TV
AUDIO IN
L
R
R-CH
SAT/CABLE
AUDIO IN
L
R
R-CH
Q413
Q412
LINE AMP
IC410
XIN
15
XOUT
13
S-AIR_ADC_SEL
54
S-AIR_RST(SRC RST)
58
S-AIR_I2C_SDA
77
(MIC_/A.CAL_SW)/
(HP_SW and MIC2_SW)/S-AIR_DET
66
S-AIR_I2C_SCL
78
S-AIR_GPIO_2
67
X501
5MHz
EEPROM_SDA/I2C_DA
TA
EEPROM_SCL/I2C_CLK
47
48
SYSTEM CONTROLLER
IC501 (3/6)
• SIGNAL PATH
: TUNER
: AUDIO
• R-ch is omitted due to same as L-ch.
: AUDIO IN
AUDIO IN/
A.CAL MIC
J100
5 Y1
DATA SELECTOR
IC801
3 1B
2
4
1A
1Y
7
2Y
9
3Y
6 2B
1
SEL
5 2A
10 3B
11 3A
ASYNC SAMPLE
RATE CONVERTER
IC804
6 LRCKI
4
23
SDIN
SDOUT
25
BCKO
24
LRCKO
5 BCKI
13
RST
2
RCKI
ASYNC SAMPLE
RATE CONVERTER
IC803
6 LRCKI
4
23
SDIN
SDOUT
25
BCKO
24
LRCKO
5 BCKI
13
RST
2
RCKI
LINE AMP
IC104
MUTING
Q115
MUTING
CONTROL
Q111
GAIN
CONTROL
Q112, 113
MIC_GAIN
26
G
DMPORT_L
J
A_SEL
AUDIO SELECTOR
IC409
5
3
Y1
Y
11 Y0
10
A
9
B
2 Y2
AUDIO SELECTOR
IC407
5
3
Y1
Y
11 Y0
10
A
9
B
2 Y2
A/D CONVERTER
IC805
9
VOUT
8
BCK
7
LRCK
13 VINL
Q409
Q408
D-MIX
D2
BCK
LRCK
Q411
Q410
L
M
K
X800
12.288MHz
OSC BUFFER
IC802
EEPROM
IC510
17
BCK
15
LRCK
12
RESET
7
INIT
11
I2D_SCL
14
I2D_SDA
3
GND(for DET)
CN803
EZW-RT10
13
SDIN_B(Surr)
20
SDIN_A(2nd)
AUDIO1
6
SCKI
5
6
SDA
SCL
(Page 28)
(Page 28)
(Page 30)
(Page 31)
(Page 30)
HCD-HDX678WF/HDX975WF
HCD-HDX678WF/HDX975WF
30
30
6-4. BLOCK DIAGRAM - AUDIO Section -
DAMP_SCD/DIR_DIN
DAMP_SHIFT/DIR_CLK
• SIGNAL PATH
: AUDIO
• R-ch is omitted due to same as L-ch.
A
142
X700
25MHz
CLKIN
XT
AL
143
DIGITAL AUDIO INTERFACE RECEIVER
IC702
DSP
IC700
AUDIO SELECTOR
IC3003
DO (O)
DIR_HDOUT
R-CH
16
DATA (O)
5 DIN2 (I)
OPTICAL
RECEIVER
IC301
TV
DIGITAL IN
OPTICAL
TV
DIGITAL IN
COAXIAL
J302
4 DIN1 (I)
24
AUDIO- (O)
14
BCK (O)
15
LRCK (O)
13
CKOUT (O)
3 DIN0 (I)
SPDIF
M
AUDIO1
WAVE
SHAPER
IC302
13 VinL
14 VinR
8 BCK
7 LRCK
6 SCKI
7 LRCK
6 SCKI
A/D CONVERTER
IC707
XIN (I)
22
XOUT (O)
21
X701
12.288MHz
35 36
100
DI (I)
CL
(I)
38
CE (I)
DIR_HCE
37
59
CSFLAG (O)
DIR_CSFLAG
25
19
1 2
ERROR (O)
DIR_ERROR
34
60
XST
ATE (O)
DIR_XST
ATE
17
61
DIR_ZERO
18
9
DOUT
5
3 1B
2 1A
ASDATA0
ASDATA1
ABCK
ALRCK
ACLK
79 DPSIB
80 DPSIC
81 DPSID
82 DPSIE
78 DPSIA
97 NOUAUDIO
∗
6 2B
2A
10 3B
3A
13
1
4B
4A
11
14
DATA SELECTOR
IC704
A/B
4
1Y
64
DPSOA
89 DPBCK
7
2Y
88 DPLRCK
9
3Y
94 DPFSCK
12
4Y
6
DSP_MISO
52
M_ST
DSP_MISO
16 DIR_ERR
71
DSP_INTR
15 INT_REQ
81
DSP_SPIDS
122 SPIDS
∗
121 RESET
∗
P
L
Q
AMP BUS
DIR_XSTATE
D1
65
DPSOB
D3
70
DPSOC
D-MIX
D2
71
AMP_DMIX
BCK
87
DPDVBCK
DPDVLRCK
MCK
86
DPDVLRCK
XMODE (I)
48
5
DSP_MOSI
DSP_MOSI
7
DSP_SPICLK
DSP_SPICLK
79
DSP_SF_CE
SF_CPU_CE
M_ST
91
DSP_MASTER
SF_DSP_MAS
SF_CE
∗ 98
SPI_MAS 63
MISO 126
SPICLK 125
MOSI 127
CE#
1
SCK
6
SI
5
SO
2
FLIP-FROP
IC701
M_ST
SF_CPU_CE
SF_DSP_MAS
DSP_MOSI
DSP_MISO
DSP_SPICLK
SWITCHING
IC702
SERIAL FLASH
IC706
H
B
DSP_RST
SACD_SEL
AUDIO_BUS
DIR_RST
SHIFT
SCDT
N
ASDATA2
2 B
1 A
6
A/B
5
Y
SYSTEM CONTROLLER
IC501 (4/6)
(Page 29)
(Page 27)
(Page 27)
(Page 31)
(Page 28)
(Page 31)
(Page 29)
(Page 31)
HCD-HDX678WF/HDX975WF
HCD-HDX678WF/HDX975WF
31
31
6-5. BLOCK DIAGRAM - AMP Section -
DIGITAL POWER AMP
IC3150
TB101
31
11
DATA
LAT1
INIT
SOFTMUTE
INIT
SOFTMUTE
SCDT
SHIFT
SHIFT
OUTL1(+)
9
OUTL2(–)
6
OUTR1(+)
4
OUTR2(–)
48
XFSOIN
37
FSOCKO
38
FSOI
14
XFSOOUT
OVER LOAD
DETECT
Q3151, 3152
SYSTEM CONTROLLER
IC501 (5/6)
SPEAKER
TB3901
SPEAKER
FRONT L
FRONT R
SUB
WOOFER
CENTER
MCK
BCK
LRCK
BCK
LRCK
OVF1
DC DETECT
Q3551
M+12V
+32V
D3551
P
AMP BUS
Q
DIR_XSTATE
R
DIAG
STREAM PROCESSOR
IC3010
6 PWM_A
OUT_A
14
5
PWM_B
/RESET
4
/SD
36 XFSIIN
30 BCK
29 LRCK
30 BCK
29 LRCK
HPOUTL1
HPOUTL2
HPOUTL2
HPOUTR1
HPOUTR2
HPOUTR2
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
25 FLAGLOVF
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
25 FLAGLOVF
D1
HP_SW
HP_MUTE
OVER LOAD
DETECT
Q3101, 3102
OVER LOAD
DETECT
Q3301, 3302
OVER LOAD
DETECT
Q3251, 3252
65
49
X3051
49.152MHz
OSC BUFFER
IC3051
31
11
DATA
LAT3
INIT
SOFTMUTE
INIT
SOFTMUTE
SCDT
SHIFT
SHIFT
OUTL1(+)
9
OUTL2(–)
6
OUTR1(+)
4
OUTR2(–)
48
XFSOIN
38
FSOI
MCK
BCK
LRCK
BCK
LRCK
OVF2
STREAM PROCESSOR
IC3030
36 XFSIIN
30 BCK
29 LRCK
30 BCK
29 LRCK
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
OVF1
25 FLAGLOVF
D3
DAMP_LATCH1
LAT1
LAT3
66
53
53
JACK2
HP_SW
HP_MUTE
HP_MUTE
DAMP_LATCH3
INIT
44
51
50
45
DAMP_INIT
SOFTMUTE
DAMP_SOFT_MUTE
OVF1
OVERFLOW1
OVF2
OVERFLOW2
42
DRIVE_RST (EN)
43
DRIVE_OCP (DIAG)/
POWER_DET
57
DC_DET
28 – 30
OUT_B
25 – 27
DIGITAL POWER AMP
IC3300
6 PWM_A
OUT_A
14
5
PWM_B
/RESET
4
/SD
28 – 30
OUT_B
25 – 27
PROTECT DETECT
Q3552 – 3555
DIGITAL POWER AMP
IC3400
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
DIGITAL POWER AMP
IC3100
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
DIGITAL POWER AMP
IC3500
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
• SIGNAL PATH
: AUDIO
M
M3000
(FAN)
+
–
+
–
+
–
+
–
K
N
SCDT
SHIFT
BCK
LRCK
SCDT
SHIFT
BCK
LRCK
FAN MOTOR
DRIVE
Q3000 – 3002
PHONES
J101
45
43
41
39
43
41
39
HEADPHONE
AMP
IC3001
MUTING CONTROL
Q3081
MUTING
Q117, 119
MUTING
Q116, 118
5
6
SWITCHING
IC705
D FLIP-FLOP
IC703
3
7
4
1
2
D
CLK
Q
DPDVLRCK
LRCK
Q700
2
1
(Page 30)
(Page 30)
(Page 30)
(Page 29)
(Page 32)
HCD-HDX678WF/HDX975WF
HCD-HDX678WF/HDX975WF
32
32
6-6. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
POWER CONTROL
IC921
D902
DZ904
D908
D906, 907
D905
RESET
SYSTEM CONTROLLER
IC501 (6/6)
AMP+32V
RESET
SWITCH
Q503
8
CLK
9
STB
7
DIN
ND100
FLUORESCENT
INDICATOR
TUBE
GR1 – GR12
SG2 – SG16
42 – 31
15 – 29
24 FL_D_OUT/LED_DATA
21 FL_CLK/LED_CLK
23 FL_STB
21 FL_CLK/LED_CLK
23 FL_STB
81 LED_LATCH
FLUORESCENT INDICATOR
TUBE DRIVER
IC100
4
CLK
5
LCK
3
DATA
LED DRIVER
IC103
Q8
Q9
15
(ORG)
(GRN)
14
D108
DISC 1
Q6
Q7
13
(ORG)
(GRN)
12
D107
DISC 2
Q4
Q5
11
(ORG)
(GRN)
10
D106
DISC 3
Q2
Q3
9
(ORG)
(GRN)
8
D105
DISC 4
Q0
Q1
7
(ORG)
(GRN)
6
D104
DISC 5
LED DRIVE
Q101
LED DRIVE
Q102
LED DRIVE
Q103
LED DRIVE
Q104
LED DRIVE
Q105
LED DRIVE
Q106
LED DRIVE
Q107
LED DRIVE
Q108
LED DRIVE
Q109
LED DRIVE
Q110
KEY0 – KEY2
S100 – 111, 922
(FRONT & TOP PANEL KEY)
97, 95, 94
SIRCS_IN
REMOTE CONTROL
RECEIVER
IC101
4
EN_B
11
EN_A
10
KEY INT
74
(AC IN)
F901
LINE FILTER
LF901, 902
RECT
D901
TH901
9 D
7 VIN
4 VCC
1 ZC
2 FB
POWERCONTROL
IC901
3 D
5 FB/OLP
1
OCP/
SYNC
SYNC
4 VCC
RIPPLE FILTER
Q922
ISOLATOR
PC902
ISOLATOR
PC901
ISOLATOR
PC903
B+ SWICH
Q901
T903
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
D910
RECT
D931
RECT
D912
A+12V, M+12V
A+9V
POWER ON/OFF
CONTROL
Q943, 947, 949, 950
SHUNT
REGULATOR
IC931
SHUNT
REGULATOR
IC922
ISOLATOR
PC904
+12V
REGULATOR
IC941
RECT
D916
M+9V
AUDIO+5V
LED+6V
B+ SWITCH
Q945
RECT
D942
RECT
D943
+5V
REGULATOR
IC505
+9V
REGULATOR
IC413
SERVO DSP+1.8V
S-AIR+3.3V
+1.8V
REGULATOR
IC3050
S-AIR RT+3.3V
AMP+1.8V
E+3.3V
+1.8V
REGULATOR
IC1110
RESET SIGNAL
GENERATOR
IC503
RF+3.3V
DMPORT+5V
SW+5V
+5V
REGULATOR
IC201
+5V
REGULATOR
IC502
+1.2V
REGULATOR
IC707
+3.3V
REGULATOR
IC806
SW+3.3V
+3.3V
REGULATOR
IC102
SW+3.3V
+3.3V
REGULATOR
IC506
SERVO+3.3V
+3.3V
REGULATOR
IC1708
SERVO+3.3V
+3.3V
REGULATOR
IC1105
+3.3V
REGULATOR
IC800
+3.3V
REGULATOR
IC1107
A+5V
+5V
REGULATOR
IC507
V+5V
+5V
REGULATOR
IC620
VFL
FOR FLUORESCENT
INDICATOR TUBE
RECT
D100, 101
OSC
Q100
FL
FL
FL
T100
DC/DC
CONVERTER
DSP+1.2V
D502
BU+3.3V
D504
12
AC_CUT 20
P_CONT3 41
P_CONT2 40
P_CONT1 39
M+13V
ROTARY
ENCOCER
S112
VOLUME
DIAG
R
DC DETECT
Q631, 632
POWER ON/OFF
CONTROL
Q930 – 932
STANDBY
CONTROL
Q921
(Page 31)
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