Block Diagram - Output/Power Section - Sony STR-DG710 Service Manual

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