Sony STR-DH550 / STR-DH750 Service Manual ▷ View online
STR-DH550/DH750
STR-DH550/DH750
26
26
5-11. SCHEMATIC DIAGRAM – MAIN Board (3/7) –
• See page 43 for IC Block Diagrams.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (3/7)
15
16 17
18
19
20
28
27
29
31
30
21
22 23
26
0
0
0
0
0
0
0
0
0
0
7
0
0
0
1.5
6
6
0
6
0
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-7
7
0
0
0
-7
0
0
0
0
0
0
0
0
0
0
0
0
-15
-7
15
7
0.7
0
0
LR-RY
C-SURR-RY
BRIDGE-RY
SW-RY
SB-LR-RY
HP-RY
SW-RY
AGND
C655
3300p
C605
3300p
C505
3300p
C555
3300p
C755
3300p
C705
3300p
C855
3300p
C805
3300p
C203
0.1u
C491
0.1u
C441
0.1u
C433
10u
C487
0.1u
C204
0.1u
C200
0.1u
C301
10u
50V
C449
100p
C450
100p
C499
2200p
C489
2200p
C355
470p
C352
1u
C350
1u
C354
470p
C484
47p
C482
47p
C434
47p
C432
47p
C483
10u
C480
1u
C051
100p
C001
100p
C053
100p
C003
100p
C057
100p
C007
100p
C208
47p
C206
47p
C205
0.1u
C207
0.1u
R204
75
R203
75
C984
0.0022u
C052
100p
C002
100p
C653
10u 50V
C603
10u 50V
C503
10u 50V
C553
10u 50V
C753
10u 50V
C703
10u 50V
C853
10u 50V
C803
10u 50V
C353
100u
16V
C351
100u
16V
C210
1000u
6.3V
C546
10u 50V
C547
10u 50V
CL437
CL439
CL440
CL441
CL442
CL341
CL443
CL444
CL445
CL340
CL446
CL375
CL448
CL338
CL449
CL450
CL450
CL374
CL451
CL452
CL452
CL438
CL435
CL434
CL392
CL391
CL204
CL203
CL200
CL202
CL201
CL390
CL389
CL387
CL386
CL385
CL384
CL339
CL337
CL205
CL858
CL859
CL860
CL430
CL861
CL862
CL431
CL433
CL447
CL432
CL933
CL932
CL453
CL454
CL454
D352
GS1G
D301
DA2J10100L
D356
P6SMB30AT3G
+6V
FB200
0uH
IC352
KIA7907F-RTF/P
OUT
GND
IN
OUT
GND
IN
1 2
3
4
J401
6P
J200
3P
J402
4P
Q201
PMG85XP
MUTE
PROTECTION
IC400
BD34701KS2
1
VCC
2
DGND
3
DA
4
CL
5
VEE
6
FROUT
7
FLOUT
8
SWOUT
9
COUT
10
SROUT
11
SLOUT
12
SBROUT
13
SBLOUT
14
SUBL
15
SUBR
16
GND
17
GND
18
RECL
19
RECR
20
GND
21
GND
22
INL8
23
INR8
24
INL7
25
INR7
26
GND
27
INL6
28
INR6
29
INL5
30
INR5
31
INL4
32
INR4
33
INL3
34
INR3
35
INL2
36
INR2
37
INL1
38
INR1
39
GND
40
SBLIN
41
SBRIN
42
SLIN
43
SRIN
44
CIN
45
SWIN
46
FLIN
47
FRIN
48
GND
49
ADCR
50
ADCL
51
GND
52
CHIP
Q301
2PD601ART
RELAY DRIVER
Q200
LTC014EUBFS8TL
MUTE
PROTECTION
R302
100
1k
R451
1k
R401
1k
R453
1k
R403
1k
R457
1k
R407
1k
R681
1k
R631
1k
R531
1k
R581
1k
R781
1k
R731
1k
R881
1k
R831
10k
R201
75
R205
1k
R935
1k
R936
47k
R308
47k
R304
1k
R309
100k
R307
R422
100k
R423
100k
R473
100k
R470
22k
C430
1u
C431
1u
R420
22k
R421
22k
C481
1u
R471
22k
R472
100k
220
R449
220
R450
1k
R301
RY301
12V
1
2
3
4
5
LCH-P
VSEL-SW
VMUTE
SL-IN
SW-RY
TUNER-L
SBL-IN
TUNER-R
HP-RY
SW-IN
RCH-P
SR-IN
RCH-N
C-IN
FR-IN
FL-IN
AGND
BRIDGE-RY
SBR-IN
DCAC
C-SURR-RY
LCH-N
LR-RY
SB-LR-RY
EVOL-DATA
AGND
R-IN
L-IN
EVOL-CLK
+7V
+7V
IC200
NJM41010F1
1
OUT
2
GND
3
VCC
VIN1
4
VIN2
5
VSW
6
IC402
NJM4565M (TE2)
1
1OUT
2
1-IN
3
1+IN
4
VSS
2+IN
5
2-IN
6
2OUT
7
VCC
8
W002
C211
47u 35V
C202
0.01u
C201
0.01u
YEL
YEL
YEL
WHT
RED
WHT
RED
WHT
RED
WHT
RED
BLK
BLK
-7V REG.
IC352
IC350
KIA7807AF-RTF/P
+7V REG.
IC350
DIR FUNCTION SELECT
IC400
LINE AMP
IC402
VIDEO
DRIVER
IC200
VIDEO
MONITOR OUT
VIDEO
VIDEO IN
VIDEO
SAT/CATV IN
L
R
AUDIO
VIDEO IN
AUDIO
SUBWOOFER OUT
L
R
AUDIO
SAT/CATV IN
AUDIO
TV IN
L
R
AUDIO
SA-CD/CD IN
L
R
>009S
MAIN BOARD
(5/7)
(Page 28)
>003S
MAIN BOARD (1/7)
(Page 24)
>005S
MAIN BOARD
(2/7)
(Page 25)
>010S
MAIN BOARD
(5/7)
(Page 28)
>013S
MAIN BOARD
(5/7)
(Page 28)
>012S
MAIN BOARD
(7/7)
(Page 30)
>011S
MAIN BOARD
(4/7)
(Page 27)
DH750
DH750
Ver. 1.2
STR-DH550/DH750
STR-DH550/DH750
27
27
5-12. SCHEMATIC DIAGRAM – MAIN Board (4/7) –
• See page 21 for Waveforms. • See page 43 for IC Block Diagrams. • See page 50 for IC Pin Function Descriptions.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (4/7)
40
39
33
34
35
38
37
36
32
1.2 1.2
3.3
2.5 1.3
0
3.3 3.3 3.3
0
0
0 3.3
0 3.3 3.3 3.3 3.3
3.3
3.2
0 0.8 0.8 1.7
2.9
0
3.3 3.3
1.4
3.3
3.3
3.3
0
0
1.5
2.8
3.3
0
3.3
1.2
3.3
0
3.3
0
3.3
0
0
3.3
3.3 0
3.3
3.3
3.3
3.3
3.3
3.3 3.3 3.3
3.3
3.3
3.3
3.3
3.3 0
0
3.3
3.3
3.3
0
0
3.3
3.3
1
3.3
3.3
0
0
3.3
3.3
0.6
3.3
3.3
0
0
3.3
3.3
0
3.3
3.3
3.3
33
3.3
0
0
3.3
3.3
3.3
3.3
3.3
3.3
2.7
0.1
1.7
2.7
3
3
3
0.1
3.3
3.3
3.3
HDMI-SPDIF
BT-MUTE
VCOM-SDA
PROG-VU-RST
MU-UART-IN
TUNER-CE
EVOL-CLK
EVOL-DATA
FL_LAT
FL_DATA
HDMI-SCL
FL_CLK
TEMP-SENSOR-1
HDMI-SDA
TEMP-SENSOR-2
LIMITER
PROG-MU-MD0
LED-STBY
HDMIOUT-5VPWR
MHL-OVC
MHL-PCONT
ARC-SPDIF
HDMI-MCK
HDMI-BCK
HDMI-LRCK
HDMI_SD3
HDMI_SD2
HDMI_SD1
HDMI_SD0
HDMI_SD2
HDMI_SD1
HDMI_SD0
HDMI-MB-MUTE
UPDATE-LED
LED-ON
HP-RY
BRIDGE-RY
SB-LR-RY
SW-RY
LR-RY
C-SURR-RY
FSRATE
NFC-RF-DET
VU_PCONT
VMUTE
VSEL-SW
PUREDIRECT
VOLUME
SIRC
POWER_DET
AD_KEY1
MU-RST
AD_KEY2
INPUT
DIR_SIGNAL
PROG-MURX
PROG-MUTX
DIR_XSTATE
DIR_MISO
COM-DATA
COM-CLK
COM-CLK
DIR_CE
DIR_INT
DIR_RST
DIR_INT
DIR_RST
DSP-SFLASH-HOLD
DSP-INT
DSP-RST
PROG-VU-MD0
DSP-SPICLK
DSP-MOSI
DSP-MISO
DSP-MOSI
DSP-MISO
DSP-NPCM
DSP-ERROR
DSP-SPICS
DSP-ERROR
DSP-SPICS
DAC-IIC-SDA
DAC-IIC-SCL
SPARTA-INT
SPARTA-RST
HP-DETECT
FUSE-DET
FL-EN
TUNER-I2C/RDSI
TUNER-SDA
TUNER-SCL
PROTECT
C2038
0.1u
C2012
0.1u
C2068
0.1u
C2066
4.7u
C2073
0.1u
C2088
0.1u
C2016
0.1u
C2078
0.1u
C2042
0.1u
C2040
0.1u
C2034
0.1u
C2039
0.1u
C2043
0.1u
C2045
0.1u
C2046
0.1u
C2047
0.1u
C2044
0.001u
C2065
0.001u
R2075
10k
R2094
10k
R2042
10k
R2076
10k
R2077
10k
R2079
10k
R2080
10k
C2203
0.1u
C2214
0.1u
C2069
0.1u
C2067
4.7u
C2009
4.7u
C2206
22u
25V
C2215
100u 10V
C2008
47u
35V
CL2041
CL2200
CL2044
CL2042
CL2043
CL2043
CL2039
CL2040
CL2046
CL2016
CL2013
CL2008
CL2009
CL2009
CL2011
CL2015
CL2017
CL2006
CL2010
CL2003
CL2002
CL2001
CL2014
CL2018
CL2005
CL2045
CL2007
CL2012
CL2019
CL2004
CN2005
10P
1
PWR-RLY
3
STOP
4
STBY3.3V
5
STBY-GND
6
R3+12V
7
+2V
8
+3.3V
9
+6V
10 +6V
D2011
CES521
D2012
CES521
D2201
DA2J10100L
D2003
RB751V40,115
+12V
+2V
STBY3.3V
3.3V
D-GND
+6V
FB2003
0uH
FB2204
0uH
FL_DATA
FL_CLK
FL_LAT
SIRC
AD_KEY2
NFC-SPICLK
NFC-DATA
NFC-SEL
NFC-IRQ
NFC-SW
NFC-RF-DET
INPUT
VOLUME
LED-STBY
LED-ON
POWER_DET
AD_KEY1
PUREDIRECT
FL-EN
CL2055
CL2054
CL2053
CL2052
CL2058
CL2051
CL2050
CL2068
CL2061
CL2069
CL2070
CL2063
CL2064
CL2056
CL2066
CL2059
CL2067
CL2065
CL2060
CL2057
CL2062
CN2004
29P
1
PUREDIRECT
2
AD2
3
AD1
4
POWER-KEY
5
LED-ON
6
LED-STBY
7
AGND
8
+7V
9
DCAC-SIGNAL
10
VOL-JOG
11
INPUT-JOG
12
NFC-RF-DET
13
NFC-SW
14
NFC-IRQ
15
NFC-SEL
16
NFC-DATA
17
NFC-SPICLK
18
STBY-3.3
19
SIRCS-IN
20
FL-STB/LATCH
21
DGND
22
FL-CLK
23
DGND
24
FL-DATA
25
FL-EN
26
FL-GND
27
FL-BK/+15V
28
FL-GND
29
DCDC-6V
+7V
AGND
AGND
DCAC
FB2011
0uH
J2200
1P
JL2027
JL2000
JL2001
IC2001
MB9AF156NPMC-G-JNK1E2
1
VCC
2
DSP-INT
3
DSP-RST
4
PWR-RLY
5
TUN_RDS_SIGNAL
28
NFC-RF-DET
29
P-CONT
30
71
FLASH_CLK
72
SO
73
SI
74
DIR-SIGNAL
75
VSS
96
DSP_MISO
97
VCC
98
VSEL-SW
99
VMUTE
100
VSS
26
VCC
27
BT_MUTE
6
TUNER_SDA
7
TUNER_SCL
8
TUNER_CE
9
DAC-IIC-SDA
10
10
DAC-IIC-SCL
11
11
BRIDGEABLE_RY
12
12
SBL_SBR_RY
31
32
33
C
34
VSS
35
VCC
36
LED-ON
37
LED-STBY
66
STOP
67
LIMITER
68
DIR FSRATE
69
TEMP_SENSOR_2
70
TEMP_SENSOR_1
64
HDMI_CEC_OUT
65
HDMI_CEC_IN
91
DSP-SPICS
92
PROG_VU_MD0
93
VU_RST
94
DSP_SPICLK
95
DSP_MOSI
89
DSP-NLPCM
90
DSP-ERROR
13
SW_RY
14
14
FRONT_SPK_RY
15
15
C/SL_SR_RY
16
16
EVOL_DATA
17
17
EVOL_CLK
18
18
PROTECT
19
19
E2P_SDA
20
20
E2P_SCL
21 22 23
21 22 23
HP-RY
24
24
HP-DETECT
25
25
VSS
38
INITX
39
40
41
FUSE_DET
42
FL-EN
43
FL_CLK
44
FL_DATA
45
FL_LAT
46
MD1
47
MD0
48
X0
49
X1
50
VSS
52
INPUT_JOG
53
SIRC-IN
54
VOLUME_JOG
55
AD KEY1
56
POWER DET
57
AD_KEY2
58
PUREDIRECT
59
MU UART IN
60
AVCC
61
AVRH
62
AVSS
63
VCOM_SDA (OUT)
51
VCC
77
DIR-XSTATE
78
TCK
79
TDI
80
TMS
81
TD0
82
DIR-MISO
83
DIR-MOSI
84
DIR-SPICLK
85
DIR-CE
86
DIR-INT
87
DIR-RST
88
DSP-SFLASH-HOLD
76
VCC
Q2000
2PB709BSL
CEC DATA
SWITCH
Q2002
2PD601ART
CEC DATA
SWITCH
Q2001
2PD601ART
CEC DATA
SWITCH
Q2003
PDTC114ET
CEC DATA
SWITCH
RB2014
100
RB2015
100
RB2013
100
RB2012
100
RB2010
100
RB2008
100
RB2006
100
RB2000
1k
RB2005
100
RB2007
100
RB2011
100
RB2009
2.2k
RB2001
100
RB2002
100
RB2003
100
R2010
100
R2013
100
R2014
100
R2016
4.7k
R2012
680
R2015
100
R2017
100
R2018
100
C2011
0.1u
R2307
10k
R2308
10k
R2003
100
47k
R2217
2.2k
R2004
100
R2216
100
R2083
27k
R2037
1k
R2090
10k
R2084
R2002
680
10k
R2310
100
R2086
10k
R2026
10k
R2011
10k
R2093
2.2k
R2046
2.2k
R2050
2.2k
R2031
2.2k
R2032
2.2k
R2064
0.1u
C2037
75
R2200
100
R2081
10k
R2009
1k
R2019
220
R2040
330
R2007
470
R2006
470k
R2214
330
R2001
47
R2000
47
R2005
470
R2213
10k
R2100
22k
R2022
10k
R2085
100
R2008
100
R2058
100
R2066
10k
R2068
10k
R2309
0.1u
C2327
0.1u
C2323
22k
R2021
IC2009
BU4229F-TR
1
GND
2
VDD
3
CT
4
VOUT
IC2202
TC7WHU04FK
1
1A
2
3Y
3
2A
4
GND
2Y
5
3A
6
1Y
7
VCC
8
C2041
0.1u
3.3k
R2061
3.3k
R2063
IC2008
IC BR24T64FJ-WE2
1
2
3
4
5
6
7
6
7
VCC
WP
SDA
SCL
SCL
A0
A1
GND
A2
8
W2200
X2001
4MHz
CN2000
23P
1
MHL_OVC
2
MHL_PCONT
3
HDMIOUT_5VPWR
4
ARC_SPDIF
5
DGND
6
HDMI_MCK
7
DGND
8
HDMI_BCK
9
DGND
10
HDMI_LRCK
11
HDMI_SD3
12
HDMI_SD2
13
HDMI_SD1
14
HDMI_SD0
15
HDMI_SPDIF
16
HDMI_MUTE
17
HDMI_INT
18
DGND
19
HDMI_SCL
20
DGND
21
HDMI_SDA
22
HDMI_RST
23
CEC
C2322
220p
FB2000
0
WAVE SHAPER
IC2202
SYSTEM CONTROL
IC2001
EEPROM
IC2008
RESET IC
IC2009
>014S
HDMI BOARD
CN3514
(Page 33)
>017S
DISPLAY
BOARD
CN102
(Page 38)
>016S
MAIN BOARD
(5/7)
(Page 28)
>011S
MAIN BOARD
(3/7)
(Page 26)
>019S
STANDBY
DCDC
BOARD
CN1901
CN1901
(Page 36)
COAXIAL
SA-CD/CD
(ASSIGNABLE) IN
>020S
MAIN BOARD
(5/7)
(Page 28)
>018S
MAIN BOARD
(5/7), (7/7)
(Page 28), (Page 30)
>015S
MAIN BOARD
(5/7), (6/7)
(Page 28), (Page 29)
DH750
2
STR-DH550/DH750
STR-DH550/DH750
28
28
5-13. SCHEMATIC DIAGRAM – MAIN Board (5/7) –
• See page 21 for Waveforms. • See page 43 for IC Block Diagrams.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (5/7)
40
39
33
35
34
32
37
36
38
0
0 3.1
0
1.2 1.7 1.7 1.8
0
0
0
0
0
0
7
5
1.2 1.3 1.7
3.3 1.7 1.7 1.2 1.7 3.3 3.3
2.5
2.5
2.5
5
2.5
2.5
2.5
2.5
5
2.5
2.5
1.6
3.3
2.5
3.3
0
3.3
0
3.3
3.3
3.3
0
0
0
0
0
0
1.7
0
3.3
1.6
3.3 3.3 3.3
2.5 5
2.5
0
3.3
1.8
0
0
2.5
3.3
3.3
3.3
3.3
0.1
3
0
7
5
7
1.7
1.7
3.3
6.6
0
1.7
1.7
1.7
3.3
3.3
1.8
1.7
DIR_INT
DSP-NPCM
LIMITER
LRCLK-IN
DIR_MISO
HDMI-NLPCM
TUNER-R
TUNER-L
TUNER-R
TUNER-L
EVOL-DATA
EVOL-CLK
EVOL-CLK
DIR-IN
DIR_RST
SBL/SBR-IN
MCLK-IN
SL/SR-IN
ARC-SPDIF
HDMI-SPDIF
USB-SPDIF
DIR_XSTATE
DIR_SIGNAL
BCLK-IN
DIR_CE
FSRATE
C/SW-IN
LRCLK-IN
DSP-ERROR
DIR_XSTATE
COM-DATA
COM-CLK
HDMI-MUTE
HDMI_SD3
HDMI_SD2
HDMI_SD1
HDMI_SD0
HDMI-MCK
HDMI-BCK
HDMI-LRCK
DSD-IN
SB-LR-RY
LR-RY
SW-RY
FUSE-DET
C-SURR-RY
BRIDGE-RY
PROTECT
SBL/SBR-OUT
SL/SR-OUT
C/SW-OUT
LRCLK-OUT
BCLK-OUT
L/R-OUT
DAC-IIC-SDA
DAC-IIC-SCL
C2227
0.001u
C2313
0.001u
C2311
0.01u
C2310
0.1u
C2228
0.1u
C2320
0.1u
C2329
0.0022u
C2331
0.0022u
C2317 0.1u
C2314 0.01u
C2316 0.001u
C2319 0.01u
C2318 0.1u
C2321
100u
16V
C2315
100u
16V
C2312
100u
16V
C2223
0.001u
C2229
0.1u
C2302
0.1u
C2306
4.7u
C2210
0.1u
C2309
0.01u
C2208
470p
C2226
0.1u
C2025
0.1u
C2204
0.1u
C2207
0.1u
C2209
10u
C2221
0.068u
C2303
1u
C2213
0.1u
C2225
0.1u
C2200
7p
C2205
7p
C2027
1u
C2219
0.1u
C2224
0.1u
C2024
0.1u
C2026
4.7u
C2220
100u
16V
C2222
100u
16V
C2202
100u 10V
C2308
100u 10V
CL2201
CL2202
D2303
BAV70
D2304
BAV70
D2302
DA2J10100L
D2200
DA2J10100L
EVOL-CLK
PROTECT
TEMP-SENSOR-1
TEMP-SENSOR-2
TEMP-SENSOR-2
TEMP-SENSOR-2
TEMP-SENSOR-1
D-GND
+7V
EVOL-DATA
LIMITER
L-IN
R-IN
C-IN
SB-LR-RY
SBL-IN
HP-DETECT
C-SURR-RY
VMUTE
BRIDGE-RY
SW-IN
HP-RY
HP-DETECT
HP-RY
FL-IN
SL-IN
LR-RY
FR-IN
AGND
SR-IN
AGND
VSEL-SW
VMUTE
VSEL-SW
SW-RY
SBR-IN
FB2301
0uH
FB2206
0uH
FB2302
0uH
FB2200
0uH
FB2202
0uH
FB2203
0uH
FB2004
0uH
FB2303
0uH
FB2201
0uH
FB2205
0uH
IC2203
LC89075WA-H
1
LPF
2
PGND
3
MCKIN
4
BCKIN
5
LRCKIN
6
DATAIN
7
MPIN1
8
MPIN2
9
MPIN3
10
MPIN4
11
MPIN5
12
MPIN6
13
MCKOUT
14
BCKOUT
15
LRCKOUT
16
DATAOUT
17
DGND
18
DVDD
19
MPOUT1
20
MPOUT2
21
MPOUT3
22
MPOUT4
23
ERRF
24
MUTEB
25
NPCMF
26
MPIO1
27
MPIO2
28
MPIO3
29
MPIO4
30
XMCK
31
XOUT
32
XIN
33
DGND
34
DVDD
35
XMODE
36
CSB
37
SCK
38
SI
39
SO
40
INTB
41
DSTATE
42
DVDD
43
DGND
44
ADINR
45
ADINL
46
AVDD
47
AGND
48
VREF
49
RXIN3A
50
RXIN2A
51
RXIN1A COAXIAL
52
DGND
53
RXOUT
54
DVDD
55
DGND
56
RXIN8
57
RXIN7
58
RXIN6 OPTICAL SAT/ CATV
59
RXIN5 OPTICAL GAME
60
RXIN4 ARC SPDIF
61
RXIN3 HDMI SPDIF
62
RXIN2 USB SPDIF
63
RXIN1 COAXIAL
64
PVDD
Q2200
Q2200
LTC014EUBFS8TL
MUTE
PROTECTION
R2303
100
R2304
100
R2305
100
R2306
100
0
R2238
33k
R2300
1M
R2215
100
R2237
100
R2212
100
R2239
10k
R2302
10k
R2225
470
R2236
100
R2211
10k
R2025
10k
R2220
10k
R2229
0
R2231
10k
R2232
1k
R2233
1k
R2234
0.1u
C2218
0
R2224
0
R2226
0
R2227
10k
R2221
22k
R2301
220
R2202
22
R2203
22
R2204
22
R2205
100
R2206
10k
R2210
220
R2201
1k
R2218
TUNER-L
TUNER-SCL
TUNER-I2C/RDSI
TUNER-R
TUNER-SDA
TUNER-CE
C2033
100p
C2029
100p
CL2036
CL2038
CL2037
CL2032
CL2031
CL2030
CL2029
CL2028
CN2003
9P
1
IISD
2
VDD
3
AUDIO L/LRCK
4
CE
5
AUDIO R/BCK
6
GND
7
DA
8
IIC/RDSI
9
CK
1k
R2043
1k
R2041
47
R2228
10k
R2230
1M
R2209
100
R2235
FB2300
0uH
3.3V_TH
IC2200
JSR1124
IC2201
JSR1124
1
VOUT
2
GND
3
VCC
1
VOUT
2
GND
3
VCC
IC2000
MM1839A50NRE
1
CONT
2
GND
3
NC
4
VOUT
5
VIN
IC2300
MM1839A50NRE
1
CONT
2
GND
3
NC
4
VOUT
5
VIN
IC2205
TC7WH157FK
1
A
2
B
3
Y
4
GND
Y
5
SELECT
6
ST
7
VCC
8
IC2204
TC74VHC393FT (ELK)
1
1CK
2
1CLR
3
1QA
4
1QB
5
1QC
6
1QD
7
GND
2QD
8
2QC
9
2QB
10
2QA
11
2CLR
12
2CK
13
VCC
14
IC2301
PCM1681PWPR
1
ZR1/ZR1/FMT0
2
MS/ADR/FMT1
3
MC/SCL/DEMP
4
MD/SDA/MUTE
5
SCK
6
DATA1
7
BCK
8
LRCK
9
VDD
10
DGND
11
DATA2
12
DATA3
13
DATA4
14
MSEL
VOUT8
15
15
VOUT7
16
16
VCC1
17
17
AGND1
18
18
VOUT6
19
19
VOUT5
20
20
VOUT4
21
21
VOUT3
22
22
VCC2
23
23
AGND2
24
24
VCOM
25
25
VOUT2
26
26
VOUT1
27
27
ZR2
28
28
29
X2200
24.576MHz
R2223
220
R2222
220
R2219
330
DIGITAL AUDIO
INTERFACE RECEIVER
IC2203
DIGITAL OPTICAL
RECEIVER
IC2200
DIGITAL OPTICAL
RECEIVER
IC2201
+5V REG.
IC2300
D/A
CONVERTER
IC2301
MUTING
IC2205
BINARY COUNTER
IC2204
+5V REG.
IC2000
C2307
0.1u
>016S
MAIN BOARD (4/7)
(Page 27)
>010S
MAIN BOARD (3/7)
(Page 26)
>021S
TUNER1
BOARD
CN101
(Page 40)
>015S
MAIN BOARD
(4/7), (6/7)
(Page 27), (Page 29)
>013S
MAIN BOARD (3/7)
(Page 26)
>018S
MAIN BOARD
(4/7), (7/7)
(Page 27), (Page 30)
>020S
MAIN BOARD
(4/7)
(Page 27)
>001S
MAIN BOARD
(1/7)
(Page 24)
>009S
MAIN BOARD
(3/7)
(Page 26)
IN 1
(SAT/CATV ASSIGNABLE)
OPTICAL
DH750
3
5
4
6
IN 2
(TV ASSIGNABLE)
STR-DH550/DH750
STR-DH550/DH750
29
29
5-14. SCHEMATIC DIAGRAM – MAIN Board (6/7) –
• See page 21 for Waveforms.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (6/7)
3.3
3.3
4
1.2
3.3
3.3
3.3
1.2
1.2
1.2
0
1.2
3.3
1.2
0
0
0
0
1.2 3.3 1.7 1.2 0
1.2 0
1.6 1.6 1.6 0
1.2 1.2 1.2 1.2 1.2
1.5 1.4 3.3 1.2 1.2 1.2 1.2
1.2
0
1.2
1.2
3.1
0
1.2
0.7
3.3
1.2
0
1.2
3.8
1.2
3.3
3.3 1.2 3.3 3.2 3
1.2 3.2 1.2 1.2 3.3 1.6 1.6 1.2 0
3
1.2 3.3 3.2 0
1.2
2
1.2
0.8
3.3
3.3
3.3
3.3
3.3 0.1 3.3 3.3
SL/SR-IN
DSP-SPICLK
DSP-MISO
DSP-MOSI
DSP-SPICS
C/SW-IN
LRCLK-IN
C/SW-OUT
LRCLK-OUT
SBL/SBR-IN
SL/SR-OUT
BCLK-IN
BCLK-IN
SBL/SBR-OUT
DSD-IN
MCLK-IN
BCLK-OUT
DSP-NPCM
DSP-ERROR
DSP-INT
L/R-OUT
DIR-IN
C2409
0.1u
C2410
0.1u
R2410
22
R2417
22
R2418
22
R2422
22
R2424
22
R2419
22
C2412
0.1u
C2418
0.1u
R2426
22
C2421
0.1u
C2422
0.1u
C2424
0.1u
C2426
0.1u
C2427
0.1u
C2428
0.1u
C2430
0.1u
FB2400
0uH
R2415
220
R2421
330
R2429
100
R2431
100
C2419
22p
C2400
10u
C2454
10u
C2445
10u
C2448
10u
C2402
0.1u
C2406
0.1u
C2407
0.1u
C2408
0.1u
C2403
0.1u
C2404
0.1u
C2405
0.1u
R2401
22
R2402
220
R2404
220
R2405
220
R2403
22
C2401
0.1u
C2415
10p
C2444
0.1u
C2451
0.1u
C2439
0.1u
C2440
0.1u
C2432
0.1u
C2433
0.1u
C2434
0.1u
C2441
0.1u
R2439
22
R2440
22
R2437
0
R2438
0
C2438
0.1u
C2437
0.1u
C2435
0.1u
C2436
0.1u
C2452
0.1u
C2453
0.1u
C2450
220u
10V
CL2405
CL2406
+2V
3.3V
FB2402
0uH
FB2404
0uH
JL2402
JL2409
JL2408
JL2405
JL2403
JL2407
JL2411
JL2412
JL2401
JL2406
JL2410
JL2404
IC2400
ADSST-AVR-3045
1
VDD_INT
2
CLK_CFG1
3
BOOT_CFG0
4
VDD_EXT
5
VDD_INT
28
RESET_MAIN
29
VDD_INT
30
UART_OUT
71
VDD_THD
72
VDD_INT
73
VDD_INT
74
VDD_INT
75
VDD_INT
96
TCK
97
VDD_INT
98
RESET
99
TMS
100
VDD_INT
26
VDD_EXT
27
DPI_P08
6
BOOT_CFG1
7
GND
8
NC
9
NC
10
CLK_CFG0
11
VDD_INT
12
CLKIN
31
UART_IN
32
LED
33
DPI_P12
34
DPI_P13
35
DAI_P03
36
DPI_P14
37
VDD_INT
66
VDD_INT
67
VDD_INT
68
GND
69
THD_M
70
THD_P
64
VDD_INT
65
DIR_IN
91
EMU
92
TDO
93
VDD_EXT
94
VDD_INT
95
TDI
89
MLBSO
90
TRST
13
XTAL
14
VDD_EXT
15
VDD_INT
16
VDD_INT
17
RESETOUT/RUNRSTIN
18
VDD_INT
19
MOSI
20
MISO
21
SPICLK
22
VDD_INT
23
DPI_P05
24
DSP_CS
25
MD
38
VDD_INT
39
VDD_INT
40
SL/SR_IN
41
SL/SR_OUT
42
BCLK_IN
43
OPTION_L/OPTION_R_OUT
44
FRONTHI_L/R_OUT
45
VDD_INT
46
VDD_EXT
47
VDD_INT
48
L/R_OUT
49
MID/SW2_OUT
50
SBL/SBR_OUT
52
VDD_INT
53
VDD_EXT
54
MCLK_IN
55
VDD_INT
56
C/SW1_OUT
57
A/D_2CH
58
C/SW_IN
59
LRCLK_IN
60
BCLK_OUT
61
LRCLK_OUT
62
SBL/SBR_IN
63
L/R_IN
51
ZONE_L/R
77
FLAG0
78
VDD_INT
79
VDD_INT
80
FLAG1
81
FLAG2
82
FLAG3
83
MLBCLK
84
MLBDAT
85
MLBDO
86
VDD_EXT
87
MLBSIG
88
VDD_INT
76
VDD_INT
101
10k
R2443
10k
R2444
3.9k
R2455
100k
R2446
330
R2420
10k
R2458
1M
R2425
100
R2400
10k
R2407
10k
R2406
1k
R2423
22
R2408
22
R2409
22
R2412
0.1u
C2411
0.1u
C2413
0.1u
C2414
0.1u
C2416
0.1u
C2417
0.1u
C2420
10k
R2427
10k
R2432
10k
R2434
22
R2414
22
R2416
0.1u
C2423
0.1u
C2425
0.1u
C2429
10u
C2431
22
R2430
1k
R2447
10k
R2411
10k
R2413
10k
R2457
220
R2456
2.2k
R2445
X2400
25MHz
D-GND
IC2402
BD00IC0WHFV-GTR
1
VO
2
FB
3
GND
4
EN
5
NC
6
VCC
7
DSP-SPICS
DSP-MISO
DSP-SFLASH-HOLD
DSP-MOSI
DSP-SPICLK
C2443
10u
C2442
0.1u
FB2401
0uH
FB2403
0uH
10k
R2442
10k
R2435
22
R2441
22
R2448
22
R2450
22
R2452
2.2k
R2451
10k
R2449
10k
R2454
22
R2436
IC2401
W25Q80BVSSIG
1
CS
2
DO(IO1)
3
WP(IO2)
4
GND
DI(IO0)
5
CLK
6
HOLD(IO3)
7
VCC
8
DSP
IC2400
SERIAL FLASH
IC2401
+1.2V REG.
IC2402
32
>015S
MAIN BOARD
(4/7), (5/7)
(Page 27), (Page 28)
7
Note: IC2402 on the MAIN board cannot exchange with single.
When this part on the MAIN board is damaged, exchange
the entire mounted board.
the entire mounted board.
Click on the first or last page to see other STR-DH550 / STR-DH750 service manuals if exist.