Block Diagram - Power Section - Sony STR-DG910 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
5-7. BLOCK DIAGRAM — POWER SECTION —
PRE DRIVER
IN 2 PRE
L-CH 8
DRIVE
R-CH
R-CH
PRE DRIVER
IN 2 PRE
SL-CH 8
DRIVE
TUNER/
SR-CH R-CH
E
AUDIO
SECTION PRE DRIVER
(Page 17)
IN 1 PRE
C-CH
6
DRIVE
PRE DRIVER
IN 1 PRE
SBL-CH 6
DRIVE
SBR-CH R-CH
SW-CH
T E
L 1 3 9 4 2 2 9 6 5 1 3
PROTECTOR 12
Q200-203,255,256
D1110
17
FRONT_RY
D1107
C/SB/REAR RY
C/SB RY 21
23
SW_RY
SYSTEM
CONTROL D1111
IC1010 (7/7)
SP_BRY 20
HP DETECT 8
BRIDGEABLE RY
BRIDGEABLE RY 25
POWER_RY 9
STOP 81
w w w
SUB T 94
STR-DG910
IC600
+VOUT2
12
DRIVE -VOUT2
POWER AMP
11
Q671-674
-45V +45V
R-CH
IC400
+VOUT2
12
DRIVE -VOUT2 POWER AMP
11
Q471-474
-45V +45V
IC700
R-CH
+VOUT1
2
DRIVE -VOUT1 POWER AMP
3
Q721-724
-45V +45V
IC500
+VOUT1
2
DRIVE -VOUT1
POWER AMP
3
Q521-524
-45V +45V
R-CH
PROTECTOR
D201-204
+B
-B
-20V
-B SWITCH
–45V
Q221,228,235
TU+9V
FRONT A RY
IC210
OVERLOAD
Q210
2 7
DETECT AMP
PROTECTOR
+7V
+B SWITCH -7V
+45V
SW RY Q220,225
+A5V
FRONT B RY
HP DETECT
+1.2V
+3.3V
(STBY)
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. i
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(Page 19)
VIDEO
RELAY
J
HP RY DRIVER
SECTION
Q500
RELAY
CURRENT OVERLOAD
DRIVER
DETECT DETECT
Q2890
Q675,676 D675,Q677
R-CH R-CH
RELAY
DRIVER
Q2880
CURRENT OVERLOAD
DETECT DETECT
RELAY
Q475,476 D475,Q477
DRIVER
Q600
R-CH R-CH
RELAY
CURRENT OVERLOAD
DRIVER
DETECT DETECT
Q400
Q725,726 D725,Q727
RELAY
CURRENT OVERLOAD
DRIVER
DETECT DETECT
Q700
Q525,526 D525,Q527
Q Q
3 7 6
RELAY
R-CH
DRIVER
Q351
BRIDGEABLE RY
RECT
D801,802
R290
D290
-20V REG
Q250 IC1902
+9V
3 1
REG D291 R291
+15V
IC260
+7V
3 1
REG
-7V
3 2
REG
IC1001
IC265
-15V
+5V
3 1
REG
IC1002
+1.2V
3 1 +3.3V
REG
IC1904
D1001
+3.3V
3 1
REG
AC IN
DETECT
Q921
u 1 6 3
23 23
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2 4
8 9 9
J790
R-CH
PHONES
RY500
TM2880
L
RY2891 FRONT A
R-CH
R
L
FRONT B
RY2881
R-CH
R
TM602 (1/2)
SPEAKERS
IMPEDANCE
L
USE 8-16Ω
SURROUND
RY600
R-CH
R
TM601
RY400
CENTER
TM602 (2/2)
RY700 SURROUND
BACK
R-CH
J305
AUDIO SUB
RY351 OUT WOOFER
3 1 5 1 5 0 8 9 2
T901
POWER
TRANSFORMER
(MAIN)
RY801
RELAY
RELAY
DRIVER
SW
Q809
TUNER/
R2 AC
F
R810
(Page 17) AUDIO
R2 AC
SECTION
RECT
D920-923
EXCEPT
R811 E2
MODEL
R851
+7V2 F901
RECT
D851-854
R852
JW907
–7V2
F1
E2
F2
MODEL
-20V
T903
D251
RY901
POWER
RELAY
TRANSFORMER
DRIVER
(SUB)
Q901
RECT
D910-913
D914 D915
EXCEPT E2 MODEL
m
SUB TRANSFORMER D924
VOLTAGE CONTROL
Q922,923
c o
.
STR-DG910
2
8 9 9
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
• Abbreviation
CND : Canadian model
E2 : AC 120V area in E model
E2 MODEL
S901
VOLTAGE
4 9 8 2 S901 9 9
SELECTOR
-1
240V
220V
120V
-2
F905
-3
F904
EXCEPT
AEP,UK
MODEL
F902
J911
AC OUTLET
US,CND MODEL
CN005
AC OUTLET
~
AC IN