Sony STR-DH550 / STR-DH750 Service Manual ▷ View online
STR-DH550/DH750
13
FM AUTO STOP CHECK
Procedure:
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
1. Turn on the set.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Frequency: A=87.5 MHz, B=98 MHz, C=108 MHz
Deviation
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input
ANT input
: 35 dBu (EMF)
Note:
Use 75 ohm “coaxial cable” to connect SG and the set.
You cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confi rm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is
received in good condition.”
received in good condition.”
SECTION 4
FM TUNER CHECK
generator
OUT (75
Ω)
set
MHL VBUS TEST MODE
To display MHL VBUS status
Procedure:
1. Press the [
To display MHL VBUS status
Procedure:
1. Press the [
?
/
1
] button to turn on the main power.
2. While pressing [DISPLAY] button, press and release the
[MUSIC], [MOVIE], [A.F.D./2CH] button in order, the
message “VBUS STAT” appears.
message “VBUS STAT” appears.
3. Press the [
] key of the remote commander to check the
items.
Items
Display
No Error
N O
E R O R
Current Limited
C U R
L
I
M
I
T D
Current Stopped
C U R
S T O P P D
STR-DH550/DH750
14
SECTION 5
DIAGRAMS
• Circuit Boards Location
STANDBY DCDC board
HDMI board
TUNER1 board
MAIN board
NFC ICON PC board (DH750)
RC-S801/A5 (WW)
(DH750)
(DH750)
POWER KEY board
HEADPHONE board
FRONT JACK board
DISPLAY board
BLUETOOTH MODULE
(DH750)
(DH750)
STR-DH550/DH750
STR-DH550/DH750
15
15
5-1. BLOCK DIAGRAM – ANALOG AUDIO Section –
Ver. 1.1
X2
19
X1
18
X101
32.768kHz
J401
J402 (1/2)
J100
CN103
CN104
CN102
AUTO CAL
MIC
J402 (2/2)
AUDIO
SA-CD/CD IN
R
L
AUDIO
SUBWOOFER OUT
R
L
AUDIO
SAT/CATV IN
R
L
AUDIO
TV IN
R
L
AUDIO
VIDEO IN
R
L
5
TUN_RDS_SIGNAL
AM
FM RECEIVER
IC101
ROUT
FM
75ȍCOAXIAL
ANTENNA
ARF1
ARF2
1
INL2
INR2
INL7
INR7
INL6
INR6
INL8
INR8
ADCR
ADCL
SWOUT
COUT
SROUT
SLOUT
SBROUT
SBLOUT
FROUT
FLOUT
35
36
R-ch
SL
SBL
FL
L-IN
INL3
INL1
INR1
INR3
DIR FUNCTION SELECT
IC400
SLIN
SRIN
42
43
R-ch
SL OUT
RCH-N
RCH-P
LCH-P
LCH-N
CIN
SWIN
44
45
C OUT
SW OUT
SBLIN
SBRIN
40
41
R-ch
SBL OUT
FLIN
FRIN
46
47
R-ch
FL OUT
SYSTEM
CONTROL
IC2001 (1/6)
6
TUNER_SDA
7
TUNER_SCL
EVOL_DA
TA
DA
CL
EVOL_CLK
16
17
SW_R
Y
13
37
38
3
4
33
34
34
49
7
6
13
12
8
C
11
R-ch
R-ch
R-ch
R-ch
10
22
23
1-IN
2
1+IN
3
2-IN
5
INR8
6
27
28
24
25
9
50
AUDIO AMP
IC101
R-ch
R-ch
R-ch
R-ch
R-ch
R-ch
R-ch
INL4
INR4
31
32
R-ch
R-ch
R-ch
7
5
1
3
14
LOUT 15
DA 13
CK 10
IIC/RDSI 8
6
7
FRF1
4
RY301
AEP, UK, AUS,
E12, TW
US, CND,
MX, BR
6LJQDOSDWK
: AUDIO
: TUNER
: MIC
5FKLVRPLWWHGGXHWR
: TUNER
: MIC
5FKLVRPLWWHGGXHWR
VDPHDV/FK
RELAY
DRIVER
Q301
1OUT
2OUT
LINE AMP
IC402
7
R-ch
DH750
DH750
>001B
ANALOG
VIDEO/USB
SECTION
(Page 18)
(Page 18)
>003B
DIGITAL
SECTION
(Page 16)
(Page 16)
>004B
AMP
SECTION
(Page 17)
(Page 17)
>002B
DIGITAL
SECTION
(Page 16)
(Page 16)
STR-DH550/DH750
STR-DH550/DH750
16
16
5-2. BLOCK DIAGRAM – DIGITAL Section –
19
20
5
6
E2P_DATA
E2P_SCL
L-IN
R-ch
USB
R-CH
J2200
X2400
25MHz
CEC DATA
SWITCH
Q2000 ~ Q2003
44
62
45
41
56
48
X2200
24.576MHz
CLKIN
SBL/SBR_OUT
SL/SR_OUT
C/SW1_OUT
L/R_OUT
12
XTAL 13
BCLK_OUT 60
LRCLK_OUT 61
MOSI 19
SPICLK 21
MISO 20
DSP_CS 24
31
32
1
OUT
DIGITAL OPTICAL
RECEIVER
IC2200
DIGITAL AUDIO
INTERFACE RECEIVER
IC2203
WAVE SHAPER
IC2202
DSP
IC2400
63
58
XOUT
RXIN1 COAXIAL
RXIN6 OPTICAL SAT/ CATV
1
OUT
DIGITAL OPTICAL
RECEIVER
IC2201
59 RXIN5 OPTICAL GAME
XIN
SYSTEM
CONTROL
IC2001(2/6)
4
5
16 38
15
DAC_IIC_SDL
DAC_IIC_SCA
INITX
SCK
3
MC/SCL/DEMP
MD/SDA/MUTE
DATA4
DATA3
FL OUT
R-CH
VOUT1
VOUT2
VOUT5
VOUT6
VOUT3
VOUT4
13
26
27
6
7 BCK
LRCK
8
MPOUT1
MPOUT4
DATAOUT
19
SL/SR_IN
A/D_2CH
DIR_IN
L/R_IN
40
MPOUT2 20
16
22
22
65
63
57
C/SW_IN
58
MPOUT3 21
SBL/SBR_IN
62
D/A CONVERTER
IC2301
DATA2
SL OUT
R-CH
19
20
DATA1
C OUT
22
SW OUT
21
ADINL
ADINR
RXIN2 USB SPDIF
12
VOUT7
VOUT8 15
16
SBL OUT
11
EEPROM
IC2008
BINARY
COUNTER
IC2204
MUTING
IC2205
D2200
65 64
HDMI_CEC_IN
HDMI_CEC_OUT
DIR FSRA
TE
1CK
2QD
50
SCL
SDA
4
RESET IC
IC2009
VOUT
6LJQDOSDWK
: AUDIO
: AUDIO (DIGITAL)
5FKLVRPLWWHGGXHWR
VDPHDV/FK
: AUDIO (DIGITAL)
5FKLVRPLWWHGGXHWR
VDPHDV/FK
5
2
3
6
MCKOUT 13
MCLK_IN
54
LRCKOUT 15
LRCLK_IN
59
BCKOUT 14
BCLK_IN
42
MUTEB
XMCK 30
24
B
Y
SELECT
2
5
A
1
6
MPIN4
10
SP_SERIES
MUTE
CEC
MUTE
PROTECTION
Q2200
8
1
68
DIR-SIGNAL
74
DIR-XST
ATE
77
SERIAL FLASH
IC2401
SCK
6
SO
2
CE#
1
SI
5
3 - 9
60, 61
9
COAXIAL
SA-CD/CD
(ASSIGNABLE) IN
IN 1
(SAT/CATV
ASSIGNABLE)
IN 2
(TV ASSIGNABLE)
OPTICAL
>003B
ANALOG AUDIO SECTION
(Page 15)
>005B
ANALOG VIDEO/USB
SECTION
(Page 18)
(Page 18)
>006B
DIGITAL VIDEO
SECTION
(Page 19)
(Page 19)
>002B
ANALOG AUDIO
SECTION
(Page 15)
(Page 15)
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