Sony STR-DH720 / STR-DH720HP Service Manual ▷ View online
STR-DH720/DH720HP
STR-DH720/DH720HP
17
17
5-5. BLOCK DIAGRAM – KEY/DISPLAY/USB Section –
92
FL DISPLAY DRIVER
IC152
14
I
29
31
93
6
7
5
6
40
46
45
51
53
53
54
X1(X_OUT)
X0(X_IN)
E2P_DATA
E2P_CLK
POWER_KEY
MD2
MD0
MD0
RST
SDA
SCL
EEPROM
IC2106
SIRCS
30
FL_DATA
7 DIN
29
FL_LAT
9 STB
31
FL_CLK
8 CLK
GRID1
I
GRID11
SEG1
I
SEG17
VOL_JOG
INPUT_JOG
AD_KEY_2
AD_KEY_1
39
2
REMOTE
CONTROL
SIGNAL
RECEIVER
IC151
OUT
SIRCS
+3.9V DCDC
SYSTEM
CONTROL
IC2105 (4/5)
MD2
MD0
RESET
MD0
RESET
61
60
60
FLASH_CLK
SO
SO
59 SI
CLK
SO
SI
SO
SI
1
2
36
37
RESET SIGNAL GENERATOR
IC2020
42
I
32
TONE_JOG 38
30
VEE
OUT
VDD
1
5
VOUT
7
+IN2
OUT2
Q2006
97
HDMI
CONTROLLER
IC3000 (3/3)
REGISTOR CONTROL
IC4102
COMPARATOR
IC4101
DATA PROCESSOR
IC4100
MU_MD0
NC 89
USB_OVC
3
2
IN2
OUT3
LRCK
USB SELECTOR
IC4160
30
RXIN5/USB_SPDIF
DIGITAL AUDIO
INTERFACE RECEIVER
IC2006 (2/2)
84
34
USB-DP
33
40
53
41
USB-DM
XIN-PLL
IRPTO,
KEY-ROW1/MCHNG,
KEY-ROW3/SCL,
KEY-ROW4/SDA
KEY-ROW1/MCHNG,
KEY-ROW3/SCL,
KEY-ROW4/SDA
USB_SDA,
USB_SCL,
USB_IPOD_REQ,
USB_MCHNG
XOUT-PLL
8,10,12,13
81,83,88,76
4
IC4161
3.3V
REG
+3.3V
+6V
J4000
iPhone/iPod
5
X2101
4MHz
X4102
16.9344MHz
CN2602
8
9
3
9
3
4
5
6
5
6
S183
_/1
SW NETWORK
S100-107
SW NETWORK
S108-111,S180-181
T141
CONVERTER
TRANSFORMER
Q141
SWITCHING
TRANSISTOR
EN151
MASTER
VOLUME
VOLUME
2
3
3
EN181
INPUT
INPUT
SELECTOR
2
3
3
EN180
TONE
2
3
3
ND151
VACUUM
FLUORESCENT
DISPLAY
D141
D142
D142
SWITCHING
DIODE
+3.3V (STBY)
FLASH
PROGRAMMING
3
2
DATA
SWITCH
D4101-
D4105
STR-DH720/DH720HP
STR-DH720/DH720HP
18
18
5-6. BLOCK DIAGRAM – POWER KEY Section –
6
2
3
3
DRIVE
PRE DRIVER
IC701
IN 1
+VOUT1
-VOUT2
8
12
11
11
IN 2
+VOUT2
-VOUT2
FL-CH
FR-CH
FL-CH
FR-CH
SL-CH
SBL-CH
SBR-CH
SR-CH
SL-CH
SR-CH
+3.3V
(STBY)
+5V
-5V
+4V
+6V
-7V
+7V
87
6
2
3
3
DRIVE
PRE DRIVER
IC601
IN 1
+VOUT1
-VOUT2
8
12
11
11
IN 2
+VOUT2
-VOUT2
99
80
+5V
(STBY)
-5V
REG
IC202
+3.3V
REG
IC2107
1.1V
(STBY)
2
3
POWER OPERATION AMP
IC2803
-15V
+15V
+7V
REG
IC350
-7V
REG
IC352
+5V
REG
IC201
+4V
REG
2
1
IC1500
+6V
REG
2
1
IC1600
FRONT_SPK_A_R
Y
HP_R
Y
SBL-SBR_R
Y
C/SL-SR_R
Y
PREOUT_SW_R
Y
HP_DET
FRONT_SPK_A_RY
PROTECTOR
2
BRIDGEABLE_RY
HP_DET
FUSE_DET(RESERVE)
STOP
79
4
HP_RY 3
100
PREOUT_SW_RY
98
C/SL-SR_RY
FRONT_SPK_A_RY
HP_DET
SBL-SBR_RY
HP_RY
PREOUT_SW_RY
C/SL-SR_RY
SYSTEM
CONTROL
IC2105 (5/5)
PRE
DRIVE
C-CH
6
2
3
3
DRIVE
PRE DRIVER
IC501
IN 1
+VOUT1
-VOUT2
PRE
DRIVE
SW-CH
PRE
DRIVE
6
2
3
3
DRIVE
PRE DRIVER
IC801
IN 1
+VOUT1
-VOUT2
8
12
11
11
IN 2
+VOUT2
-VOUT2
PRE
DRIVE
1
SBL-SBR_RY
4
SIGNAL
SELECTOR
IC2032
PHONES
J790
R
L
L
SUBWOOFER
AUDIO OUT
CENTER
SURROUND
R
TB503
TB504
TB503
J405
FRONT
SPEAKERS
IMPEDANCE
USE 8-16ȍ
F901
POWER TRANSFORMER
(SUB)
T902
AC IN
~
RECT
D921
F912
F913
RY901
D990
F910
F911
F940
F941
RECT
D910-913
RECT
D941
D2303
D2302
D2110
PROTECTOR
D326-327, Q320-321,
Q323-325
POWER AMP
Q701-704,
Q751-754
POWER AMP
Q551-554
POWER AMP
Q601-604,
Q651-654
POWER AMP
Q801-802,
Q503-504,
Q503-504,
Q851-854
RY350
RY365
RY301
RY375
RELAY
DRIVER
Q375
RELAY
DRIVER
Q365
RELAY
DRIVER
Q301
RELAY
DRIVER
Q350
RY920
RELAY
DRIVER
Q920
RY355
RELAY
DRIVER
Q355
R
SURROUND BACK/
FRONT HIGH
L
TB502
RY360
RELAY
DRIVER
Q360
CURRENT
DETECT
Q711,712
CURRENT
DETECT
Q761,762
CURRENT
DETECT
Q861,862
CURRENT
DETECT
Q550,555
CURRENT
DETECT
Q611,612
CURRENT
DETECT
Q661,662
CURRENT
DETECT
Q811,812
RELAY
DRIVER
Q901
AC IN
DETECT
Q990
RECT
D993-D994
T901
POWER TRANSFORMER
(MAIN)
6LJQDOSDWK
: TUNER (FM/AM)
5FKLVRPLWWHGGXHWR
5FKLVRPLWWHGGXHWR
VDPHDV/FK
62
1
UART_SEL
TUNER/
AUDIO
SECTION
(Page 13)
(Page 13)
B
STR-DH720/DH720HP
STR-DH720/DH720HP
19
19
• Circuit Boards Location
DISPLAY board
USB board
MAIN board
STANDBY-A VIDEO PC board
D-VIDEO board
DIGITAL board
HEADPHONE board
POWER KEY board
DCDC board
TUNER (FM/AM)
TEMP-SENSOR board
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
and ¼ W or less unless otherwise
specifi ed.
• f : internal component.
• 2 : nonfl ammable resistor.
• 2 : nonfl ammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are
critical for safety.
Replace only with part
number specifi ed.
critical for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que
par une piéce portant le
numéro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que
par une piéce portant le
numéro spécifi é.
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• f : internal component.
•
• X : Parts extracted from the component side.
• f : internal component.
•
: Pattern from the side which enables seeing.
Caution:
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts on the parts face side seen from
the parts face are indicated.
Parts on the pattern face side seen
from the pattern face are indicated.
the parts face are indicated.
Parts on the pattern face side seen
from the pattern face are indicated.
• Abbreviation
CND :
CND :
Canadian model
ECE : Continental European, East European
and Russian models
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
TUNER
(FM/AM)
f :
TUNER
L : VIDEO (AUDIO)
E :
E :
VIDEO
J
: DVD (DIGITAL)
c : CD (ANALOG)
• Abbreviation
CND :
CND :
Canadian
model
ECE : Continental European, East European
and Russian models
STR-DH720/DH720HP
STR-DH720/DH720HP
20
20
5-7.
PRINTED WIRING BOARD – DIGITAL Board (Side A) –
• See page 19 for Circuit Boards Location. •
: Uses unleaded solder.
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
IC2352
IC2351
IC2421
IC2805
IC2501
1
14
15
28
IC2106
1
100
30
31
81
80
50
51
IC2105
IC2802
IC2804
133
132
88
45
44
176
89
1
IC2801
IC2020
IC2009
IC2006
1
12
13
24
25
36
37
48
IC2803
IC2303
6
1
5
IC2010
O
VCC
O
VCC
1
14
CN2103
CN2105
1
19
1
19
CN21
14
20
1
CN2513
10
11
CN2002 (1
1P)
1
28
9
CN2003 (9P) (US, CND)
R2860
R2861
R2863
R2864
R2865
R2866
R2867
R2868
R2099
C2899
R2872
R2873
R2875
R2876
R2880
R2881
R2882
R2886
R2889
R2891
R2892
R2895
R2897
R2898
R2899
C2101
1
4
CN2501
C2114
C21
19
C2501
C2502
C2503
C2504
C2506
C2507
C2508
C2509
FB2007
C2125
C2127
C2510
R2100
C251
1
C2512
R2103
C2514
C2515
C2516
C2517
C2130
R2108
X2800
C2131
X2801
D2302
D2303
D2110
C2909
R2112
R21
14
R2116
C2140
R2119
C2912
FB2603
C2913
FB2604
R2311
C2917
C2918
FB2608
C2531
R2509
R2123
L2007
R2124
L2008
FB2031
R2125
FB2801
FB2032
R251
1
R2512
R2321
R2322
R2324
R2132
C2351
D2717
FB2043
C2354
C2355
C2358
C2359
R2912
C2361
R2917 R2918 R2919
R2920
R2921
R2923
C2370
R2925
R2928
R2158
R2540
R2159
R2541
R2351
R2930
R2160
R2354
R2356
R2357
R2358
R2938
R2941
R2172
R2173
R2949
R2759
R2957
R2958
R2959
R2960
R2962
R2963
R2197
RB2102
RB2103
RB2104 RB2105
RB2106
RB2107
RB2109
FB2884
FB2885
FB2886
FB2887
FB2889
FB2890
RB2119
FB2891
FB2892
JL2808
JL2809
JL2811
X2101
JL2812
C2011
C2206
C2013
C2208
C2016
C2402
CN2602
1
9
C2022
C2023
FB2101
C2413
R2007
C2418
C2421
R2011
C2422
C2424
D2018
R2015
FB2501
FB2502
C2814
JL2849
C2815
C2816
C2818
R2601
R2602
C2823
R2607
R2608
R2220
C2825
R2609
C2826
R2417
R2802
R2610
R2612
R2613
R2614
R2421
R2615
R2809
R2616
R2617
R2618
R2619
C2838
C2069
R2620
R2621
R2815
R2622
R2816
C2070
C2264
C2459
C2841
C2072
C2842
R2626
C2267
C2074
C2846
C2847
C2849
R2052
C2270
R2054
R2824
R2825
C2272
C2466
R2826
C2273
C2468
C2274
R2058
C2469
R2059
R2829
C2853
R2250
C2470
C2858
R2831
R2834
R2835
R2837
C2860
R2838
C2861
R2839
C2863
C2864
C2865
C2096
C2866
C2868
R2840
R2842
R2843 R2846
R2847
R2849
C2873
C2874
C2875
C2876
C2877
C2878
C2879
R2851
R2852
R2854
R2855
R2856
R2857
R2858
C2881
C2882
C2883
C2869
1
8
CN2603
R2929
R2186
25
24
1
2
CN2116
A2001
DIGITAL BOARD
(SIDE A)
(SIDE A)
X2101
J2301
TV
OPTICAL IN
OPTICAL
SAT/CATV IN
DIGITAL (ASSIGNABLE)
COAXIAL
BD/DVD IN
FLASH
PROGRAMMING
10
11
1
28
9
AM
ANTENNA
)0ȍ
COAXIAL
TUNER
(FM/AM)
(CHASSIS)
CN2003 : 9P (US, CND)
1-883-126-
11
(11)
ECE
C
MAIN
BOARD
CNP410
(Page 26)
D
TEMP-
SENSOR
BOARD
CN250
(Page 45)
E
DISPLAY
BOARD
CNS151
(Page 39)
G
D-VIDEO
BOARD
CN3003
CN3003
(Page 31)
F
D-VIDEO
BOARD
CN3004
CN3004
(Page 31)
CN2002 : 11P
A
STANDBY-A
VIDEO PC
BOARD
CN271
(Page 37)
B
MAIN
BOARD
CNP411
CNP411
(Page 26)
(CHASSIS)
Note 1: IC2106 on the DIGITAL board cannot exchange with
single. When this part on the DIGITAL board is damaged,
exchange the entire mounted board.
exchange the entire mounted board.
Note 2: When the DIGITAL board (Suffi x-11) is replaced, refer
to “NOTICE OF BOARD VERSION CHECK” (page 4).
Ver. 1.2
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