Block Diagram - Power Section - Sony STR-DE895 Service Manual

STR-DE895/DE995
Q Q
4-7. BLOCK DIAGRAM — POWER SECTION —
3 7 6 3 1 5 1 5 0
PRE DRIVER
IC500
IN 2 PRE
DRIVE
FL-CH 8
DRIVE
FR-CH
R-CH
PRE DRIVER
IC600
TUNER/
D
AUDIO IN 2 PRE
SL-CH 8 DRIVE
DRIVE
SECTION
(Page 19)
SR-CH R-CH
PRE DRIVER
IC400
IN 1 PRE
C-CH 6 DRIVE
DRIVE
IN 2 PRE
SBL-CH DRIVE
8
DRIVE
T E
L 1 3 9 4 2 2 9 6 5 1 3
SBR-CH R-CH
PROTECTOR
PROTECTOR 23 D201-203
Q200-202
D1107
D1108
D1110
HP-RY
HP_RY 42
FRONT A-RY
SP_A_RY
18
REAR-RY
REAR_RY 21
CENTER-RY
CENTER_RY 20
D1111
HP DETECT
HP_CTRL
24
HP DETECT
SP_B_RY 19
SB-RY
SB_RY 40
SYSTEM
CONTROL
IC1101 (4/4)
BRIDGEABLE RY 45
PW-RY 25
w w w SUB-T 43
VOLT_DETEC_STOP 60
+VOUT2
12
-VOUT2
11 POWER AMP
Q571-574
-48V +48V
R-CH
+VOUT2
12
-VOUT2
11 POWER AMP
Q671-674
-48V +48V
R-CH
+VOUT 1
2
-VOUT 1
3 POWER AMP
Q421-424
+VOUT 2
12
-VOUT 2
11 POWER AMP
Q471-474
-48V +48V
R-CH
-B
+48V REG -48V REG
+48V
-48V
Q220,225 Q235
TU+10V
Q210
IC210
OVERLOAD
2 7
DETECT AMP
+7V
-7V
+5V-2
+5V-1
+2.5V
+3.3V
x a o
IC1021
y
+3.3V
+3.3V
3
(STBY)
REG
. i
+5V
(STBY)
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RELAY
DRIVER
CURRENT OVERLOAD Q240
RY240
DETECT DETECT
Q575,576 D575,Q577
RELAY
DRIVER
R-CH R-CH
Q2881
RY2880
RELAY
DRIVER
Q500
RELAY
DRIVER
CURRENT OVERLOAD
Q600
DETECT DETECT
Q675,676 D675,Q677
RELAY
R-CH R-CH
DRIVER
Q400
CURRENT OVERLOAD
DETECT DETECT
Q425,426 D425,Q427
Q Q
3 7 6
RELAY
CURRENT OVERLOAD
DRIVER
DETECT DETECT
Q700
Q475,476 D475,Q477
R-CH
RECT
D801,802
IC1902
+10V
RELAY
3 1
REG DRIVER
Q809
IC260
+V
+7V
3 1
REG
-7V
3 2
REG
IC1001
IC265
-V
+5V
3 1
REG
IC1031
+5V
3 1
REG
IC1901
5 BACK-UP
4
SWITCH
2
D1001 +B SWITCH
u 1 6 3
IC1011
Q912,913
+5V
1 3 1
REG
24 24
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2 4
8 9 9
J2501
PHONES
R-CH
TM2880
L
FRONT B
R-CH
R
TM601
L
FRONT A
R-CH
RY500
R
SPEAKERS
IMPEDANCE
RY600
USE 8-16Ω
L
SURROUND
R-CH
RY400
R
• Signal path
TM602
CENTER
• R-ch is omitted due to
same as L-ch.
• Abbreviation
CND: Canadian model
E2 : AC 120 V area in E model
E3 : AC 240 V area in E model
MX : Mexican model
L
RY700
3 1 5 1 5 0 8 9
SURROUND
BACK
R-CH
R
T901
POWER
TRANSFORMER
D290
RELAY
SWITCH
D291
-30V REG
-30V
Q250
RY801-803
R861
RECT
D865
R862
R851
F901
RECT
D851-854
F1
F2
US,CND,
MX
-30V
MODEL
D251
RY911
RELAY
DRIVER
D916 m
Q911
T902
POWER
RECT TRANSFORMER
c o
D921-924
US,CND,MX MODEL
.
Q921
D925 D926
2
8 9 9
: TUNER (FM/AM)
2 4 9 8 2 9 9
E2,E3 M0DEL
S901
VOLTAGE
SELECTOR
220V
240V
S901
120V
-3
F904
-2
-1
US,CND,MX MODEL
F902
E2,E3
JW809
MODEL
JW807
J911
US,CND,
AC
MX MODEL
OUTLET
~
AC IN