Sony STR-DG710 - Output and Power Section Block Diagram; Audio Output and Power Supply Paths

STR-DG710
23 23
STR-DG710
8
12
11
DRIVE
POWER AMP
Q701–704
CURRENT
DETECT
Q705,706
RY701
PRE DRIVER
IC701
IN 2
+VOUT2
–VOUT2
R
L
R
L
AUDIO
OUT
SUB
WOOFER
CENTER
SURROUND
BACK
SURROUND
R–CH
R–CH
R
L
R–CH
L–CH
R–CH
SL–CH
C–CH
R–CH
SR–CH R–CH
TUNER/
AUDIO
SECTION
C
TUNER/
AUDIO
SECTION
D
RY901
D1001
F1
F2
+3.3V
(STBY)
+2.6V
+5V
–7V
+7V
TU+9V
–20V
RECT
D910–913
D914 D915
(SUB)
D1107
D1110
OVERLOAD
DETECT
D740,Q740
8
12
12
11
DRIVE
POWER AMP
Q501–504
CURRENT
DETECT
Q505,506
–20V REG
Q801
B–SWITCH
Q691,692
RELAY
DRIVER
Q901
SUB TRANSFORMER
DRIVE
Q922,923
AC IN
DETECT
Q921
PRE DRIVER
IC501
IN 2
+VOUT2
–VOUT2
OVERLOAD
DETECT
D540,Q540
8
12
11
DRIVE
POWER AMP
Q651–654
CURRENT
DETECT
Q655,656
PRE DRIVER
IC601
IN 2
+VOUT2
–VOUT2
OVERLOAD
DETECT
D640,Q640
RY601
RY560
PROTECTOR
D721,722,732,733
Q722,723,725,793,795
9
81
25
D1111
D1109
D1108
D924
+9V
(STBY)
OVERLOAD
DETECT AMP
72
IC691
–45V
–B
+3.3V/+2.6V
REG
4
5
+3.3V
2
IC1901
+A5V
+5V
REG
13
IC1001
+3.3V
REG
13
IC1904
+9V
REG
13
IC1902
–15V
+15V
+7V
REG
31
IC801
–7V
REG
23
IC802
+5V
REG
13
IC1031
+B
R–CH
R–CH
R–CH
R–CH
R–CH R–CH
RECT
D802
RECT
D920–923
RECT
D805–808
T901
POWER
TRANSFORMER
TB001 (2/2)
TB001 (1/2)
TM603
J309
(MAIN)
FRONT A
FRONT B
RY791
PHONES
J790
R–CH
FRT A RY HP RY C/SUR RY
FRT B RY
SW RY
HP DETECT
FRONT_RY
PROTECTOR
HP DETECT
STOP
HP_RY
23
FRONT B RY
17
POWER_RY
7
SUB T
22
SW_RY
24
C/REAR/SB_RY
FRT A RY
HP DETECT
HP RY
FRT B RY
8
SW RY
C/SUR RY
SYSTEM
CONTROL
IC1907 (6/6)
PRE
DRIVE
PRE
DRIVE
SW–CH
–45V +B
SBL–CH
6
2
3
DRIVE
POWER AMP
Q533,534,
571,572
CURRENT
DETECT
Q535,536
IN 1
+VOUT1
–VOUT2
OVERLOAD
DETECT
D580,Q580
PRE
DRIVE
–45V +B
–45V +B
PRE
DRIVE
R810
R2 AC
R2 AC
R811
R910
T903
POWER
TRANSFORMER
AC IN ~
F901
SPEAKERS
IMPEDANCE
USE 8–16Ω
RELAY
DRIVER
Q610
RY610
RELAY
DRIVER
Q612
RELAY
DRIVER
Q560
RELAY
DRIVER
Q710
RY710
TM602
RELAY
DRIVER
Q611
RELAY
DRIVER
Q790
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
5-8. BLOCK DIAGRAM — OUTPUT/POWER SECTION —
(Page 17)
(Page 17)