Block Diagram - Power Section - Sony STR-DE997 Service Manual

STR-DE997
4-7. BLOCK DIAGRAM — POWER SECTION —
FL-CH
FR-CH R-CH
TUNER/
D
AUDIO
SL-CH
SECTION
(Page 13)
SR-CH R-CH
C-CH
SBL-CH
SBR R-CH
PROTECTOR 23
HP_RY 42
SP_A_RY 18
REAR_RY 21
20
CENTER_RY
HP_CTRL
24
SP_B_RY 19
SYSTEM
CONTROL
IC1101 (5/5)
BRIDGEABLE RY 45
PW-RY 25
SUB-T 5
VOLT_DETECT_STOP 60
STR-DE997
PRE DRIVER
IC500
+VOUT2
IN 2 PRE 12
DRIVE -VOUT2
8
DRIVE
POWER AMP
11
Q571-574
-48V +48V
PRE DRIVER
IC600
+VOUT2
IN 2 PRE 12
8 DRIVE -VOUT2
DRIVE
11 POWER AMP
Q671-674
-48V +48V
PRE DRIVER
IC700
+VOUT1
IN1 PRE 2
DRIVE -VOUT1
6
DRIVE
3 POWER AMP
Q721-724
-48V +48V
PRE DRIVER
IC400
+VOUT2
IN2 12
PRE
DRIVE -VOUT2
8
DRIVE
POWER AMP
11
Q471-474
-48V +48V
PROTECTOR
D201-203
Q200-202,255,256
D1107
D1108
D1110
+B
HP-RY
-B
FRONT A RY +48V REG
+48V
Q220,225
REAR-RY
PROTECTOR
CENTER RY
Q210
IC210
D1111
HP DETECT
OVERLOAD
2 7
DETECT AMP
FRONT B RY
CURRENT OVERLOAD
DETECT DETECT
Q575,576 D575,Q577
R-CH R-CH
R-CH
CURRENT OVERLOAD
DETECT DETECT
Q675,676 D675,Q677
R-CH R-CH
R-CH
CURRENT OVERLOAD
DETECT DETECT
Q725,726 D725,Q727
CURRENT OVERLOAD
DETECT DETECT
Q475,476 D475,Q477
R-CH
R-CH R-CH
-48V REG
-48V
Q235
IC1902
+10V
TU+10V 3
REG
IC260
+7V
1
+7V
REG
-7V
3
-7V
REG
IC1001
IC265
+5V
3 1
+5V-2
REG
IC1031
+5V
+5V-1 3
REG
IC1901
+2.6V 5
+2.6V/+3.3V
4
+3.3V 2 REG
D1001
IC1021 IC1011
+3.3V
+3.3V +5V
3 1 3 1
(STBY)
REG REG
+5V
(STBY)
18 18
R-CH
TM2880
L
RELAY
DRIVER
Q240
R-CH
RY240
R
RELAY
DRIVER
Q2880
RY2881
L
RELAY
DRIVER R-CH
Q2881
R
RY2880
TM602(1/2)
RY600
L
RELAY
DRIVER
Q600
R-CH
RY400 R
RELAY
DRIVER
Q400
TM601
TM602(2/2)
L
RY700
RELAY
DRIVER
R-CH
Q700
R
-32V REG
-32V
TRANSFORMER
Q250
D290
RELAY
SWITCH
RECT
D801,802
D291
RELAY
DRIVER
1
Q809
RY802,803
R861
+15V
RECT
D865
3
R862
2
R851
-15V RECT
D851-854
1
F1
F2
-32V
D251
RY911
RELAY
DRIVER
Q911
D927
TRANSFORMER
+B SWITCH
RECT
Q912,913
D921-924
Q921
D925 D926
J2501
PHONES
FRONT B
FRONT A
SPEAKERS
IMPEDANCE
USE 8-16Ω
SURROUND
• Signal path
: TUNER (FM/AM)
CENTER
• R-ch is omitted due to
same as L-ch.
SURROUND
BACK
T901
POWER
F901
T902
POWER
F902
J911
AC
OUTLET
~
AC IN