Sony DAV-HDX275 / DAV-HDX277WC / DAV-HDX279W / DAV-HDX475 / DAVHDX576WF / DAV-HDX675 / HCD-HDX275 / HCD-HDX277WC / HCD-HDX279W / HCD-HDX475 / HCD-HDX576WF / HCD-HDX675 Service Manual ▷ View online
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
29
29
6-2. BLOCK DIAGRAM - CHANGER/HDMI/DMPORT Section -
TX0P
TX0N
TX1P
TX1N
TX2P
TX2N
TCKP
TCKN
7
TMDS DATA0 +
HDMI OUT
9
TMDS DATA0 –
4
TMDS DATA1 +
6
TMDS DATA1 –
1
TMDS DATA2 +
3
TMDS DATA2 –
10
TMDS CLOCK +
12
TMDS CLOCK –
16
SDA
15
SCL
18
+5V POWER
19
HPD
HPD
CN1701
5
RXD
6
TXD
7
DET
13
Lch
14
Rch
R-CH
17
VIDEO
CN204
DMPORT
LEVEL SHIFT
IC1705
LINE AMP
IC202
LEVEL SHIFT
Q1701
13
CEC
+5V
REGULATOR
IC1707
SW+9V
SDA
SCL
C
HDMI BUS
DMPORT_VIDEO
G
D
DMPORT_L
F
XRST
IO_DI
P0
FIN
CHANGER CONTROL
IC650
24
7
P1
RIN
23
OUT1
4
OUT2
2
9
LD/ST MOTOR DRIVER
IC701
M761
(LD/ST MOTOR)
D SENSOR
IC751
(ST U/D)
ROTARY
ENCODER
S781
M
P4
FIN
20
7
P5
RIN
19
P8
12
OUT1
4
OUT2
2
9
BU U/D MOTOR DRIVER
IC711
M762
(BU U/D MOTOR)
M
S761 (SUB TRAY OUT)
P11
9
S731 (SUB TRAY IN)
S721 (MAIN TRAY IN/OUT)
P10
10
P9
11
P12
IN
OPEN
8
86
DMPORT_TX_OUT 30
DMPORT_RX_IN 29
DMPORT_DET 89
DI1
26
IO_CLK 88
CLK
3
IO_CE 84
LATCH
4
IO_RESET 85
DO1 15
DO2 25
CLKO 14
LATCHO 13
RESET_B
2
CEC_TX_OUT 22
CEC_RX_IN 3
HDMI_PCONT 63
IO-DO 87
CHANGER CONTROL,
AUDIO/VIDEO CONTROL
IC651
DI1
26
DI2
16
CLK
3
LATCH
4
RESET_B
2
DISC SENSOR
Q751
DO2 25
9 – 12
P1
1 – P8
(MD)
ROTARY
ENCODER
S771
5 – 8
P15 – P12
SYSTEM
CONTROLLER
IC501 (2/5)
• SIGNAL PATH
: AUDIO
: VIDEO
• R-CH is omitted due to same as L-CH.
CEC DATA
SWITCH
Q9724, 9726,
Q9728, 9729
P6 18
P7 17
A_SEL0
A_SEL1
A_SEL1
P4 20
P5 19
A_SEL2
A_SEL3
A_SEL3
P2 22
P3 21
A_SEL4
A_SEL5
A_SEL5
E
J
P1 23
V_SEL2
A_SEL
LEVEL SHIFT
IC1706
(Page 30)
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HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
30
30
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
91
MONO/ST_DET
90
A.CAL_MIC
_LEVEL
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
(HCD-HDX576WF)
(EXCEPT HCD-HDX576WF)
J402 (2/2)
TV
AUDIO IN
TV/VIDEO
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
S-AIR_I2C_SCL
78
S-AIR_GPIO_2
67
X501
5MHz
SYSTEM CONTROLLER
IC501 (3/5)
• 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
LINE AMP
IC105
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
D4
D2
BCK
LRCK
Q411
Q410
B
M
K
X800
12.288MHz
OSC BUFFER
IC802
17
BCK
15
LRCK
12
RESET
RESN
GPI02
I2D_SCL
I2D_SDA
GND
ADC_SEL
Lch
Rch
SD1
SD2
BCK1
BCK2
LRCK1
LRCK2
7
INIT
11
I2D_SCL
14
3
I2D_SDA
GND (for DET)
CN803
EZW-RT10
CN113
EZW-T100
13
SDIN_B(Surr)
20
7
11
19
18
15
26
24
23
14
4
12
16
2
SDIN_A(2nd)
(HCD-HDX277WC/HDX279W/HDX576WF)
AUDIO1
6
SCKI
25
R-CH
(HCD-HDX275/HDX475/HDX675)
EEPROM_SDA/I2C_DA
TA
EEPROM_SCL/I2C_CLK
47
48
EEPROM
IC510
5
6
SDA
SCL
(MIC_/A.CAL_SW)/
(HP_SW and MIC2_SW)/S-AIR_DET
66
(Page 29)
(Page 29)
(Page 28)
(Page 31)
(Page 28)
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
31
31
6-4. BLOCK DIAGRAM - AMP Section -
DIGITAL POWER AMP
IC3150
TB100
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 (4/5)
SPEAKER
TB3901
SPEAKER
FRONT L
FRONT R
SUR L
SUR R
SUB
WOOFER
CENTER
MCK
BCK
LRCK
BCK
LRCK
OVF1
DC DETECT
Q3551
M+12V
+32V
D3551
A
AUDIO_BUS
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
Q3201, 3202
OVER LOAD
DETECT
Q3301, 3302
OVER LOAD
DETECT
Q3251, 3252
65
56
49
56
49
X3051
49.152MHz
R-CH
OSC BUFFER
IC3051
31
11
DATA
LAT2
INIT
SOFTMUTE
INIT
SOFTMUTE
SCDT
SHIFT
SHIFT
OUTL1(+)
9
OUTL2(–)
48
XFSOIN
38
FSOI
14
XFSOOUT
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
D1
D2
D3
D2
D3
MCK
BCK
LRCK
BCK
LRCK
OVF1
STREAM PROCESSOR
IC3020
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
D2
DAMP_LATCH1
LAT2
LAT1
SHIFT
SCDT
DAMP_LATCH2
1
2
2
DAMP_SCD
DAMP_SHIFT
LAT3
66
53
53
JACK2
HP_SW
HP_MUTE
HP_MUTE
DAMP_LATCH3
19
A.CAL_OUT_LEVEL
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
IC3250
6 PWM_A
OUT_A
14
5
PWM_B
/RESET
4
/SD
28 – 30
OUT_B
25 – 27
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)
+
–
TB101
SPEAKER
FRONT L
+
–
+
–
+
–
+
–
+
–
K
6
OUTR1(+)
4
OUTR2(–)
R-CH
R-CH
R-CH
BCK
LRCK
BCK
LRCK
FAN MOTOR
DRIVE
Q3000 – 3002
25 FLAGLOVF
PHONES
J101
(HCD-HDX279W/HDX576WF)
HCD-HDX275/
HDX277WC/
HDX475/HDX675
HDX277WC/
HDX475/HDX675
• R-CH is omitted due to same as L-CH.
45
43
41
39
43
41
39
HEADPHONE
AMP
IC3001
MUTING CONTROL
Q3081
MUTING
Q117, 119
MUTING
Q116, 118
+
–
FRONT R
R-CH
+
–
D3071
D3072
D3073
D3072
D3073
(Page 28)
(Page 30)
(Page 32)
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
32
32
6-5. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
POWER CONTROL
IC921
D902
DZ904
D908
D906, 907
D905
RESET
SYSTEM CONTROLLER
IC501 (5/5)
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
D911
RECT
D947
+5V
REGULATOR
IC505
+9V
REGULATOR
IC413
SERVO DSP+1.8V
S-AIR+3.3V
+1.8V
REGULATOR
IC3050
S-AIR RT+3.3V
(HCD-HDX277WC/HDX279W/HDX576WF)
(HCD-HDX275/HDX475/HDX675)
S-AIR CON+4V
AMP+1.8V
E+3.3V
+1.8V
REGULATOR
IC1110
RESET SIGNAL
GENERATOR
IC503
RF+3.3V
DMPORT+5V
SW+9V
+5V
REGULATOR
IC201
+5V
REGULATOR
IC502
+3.3V
REGULATOR
IC102
+3.3V
REGULATOR
IC806
SW+3.3V
D+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
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
B+ SWITCH
Q120, 121
(Page 31)
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