Block Diagram - Power Section - Sony STR-DE898 Service Manual

STR-DE898/DE998
Ver. 1.1
Q Q
3 7 6 3 1 5 1 5 0
4-7. BLOCK DIAGRAM — POWER SECTION —
PRE DRIVER
IC500
IN 2 PRE
DRIVE
L-CH 8
DRIVE
R-CH
R-CH
-48V +48V
PRE DRIVER
IC600
TUNER/
C IN 2 PRE
AUDIO
DRIVE
SL-CH 8
DRIVE
SECTION
(Page 17)
SR-CH R-CH
-48V +48V
PRE DRIVER
IC400
IN1
PRE
DRIVE
C-CH 6
DRIVE
IN2 PRE
SBL-CH T E 8 DRIVE
L 1 3 9 4 2 2 9 6 5 1 3
DRIVE
SBR-CH R-CH
(IC700)
-48V +48V
PROTECTOR
PROTECTOR 23 D201-203
Q200-202,255,256
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 CTRL
HP_CTRL
24
FRONT B RY
SP_B_RY 19
SYSTEM
CONTROL
IC1101 (5/5)
BRIDGEABLE RY 45
IC2102 (2/2)
PW-RY 25
5 6
w w w SUB-T 5
VOLT_DETECT_STOP 60
STR-DE898/DE998
+VOUT2
12
-VOUT2
11 POWER AMP
Q571-574
CURRENT
DETECT
Q575,576
R-CH
+VOUT2
12
-VOUT2
11 POWER AMP
Q671-674
CURRENT
DETECT
Q675,676
R-CH
+VOUT1
2
-VOUT1
POWER AMP
3
Q421-424
CURRENT
DETECT
Q425,426
+VOUT2
12
-VOUT2
11 POWER AMP
Q471-474
CURRENT
DETECT
Q475,476
R-CH
+B
-B
+48V REG
-48V REG
+48V
-48V
Q220,225
Q235
PROTECTOR
TU+10V
Q210
IC210
OVERLOAD
2 7
DETECT AMP
+7V
-7V
+5V-2
+5V-1
+2.6V
+3.3V
x a o IC1021
+3.3V
+3.3V
3 1
(STBY)
REG
. i
+5V
(STBY)
http://www.xiaoyu163.com
RELAY
DRIVER
OVERLOAD Q240
RY240
DETECT
D575,Q577
RELAY
DRIVER
R-CH R-CH
Q2880
RY2881
RELAY
DRIVER
Q2881
RY600
RELAY
DRIVER
OVERLOAD
Q600
DETECT
D675,Q677
RY400
RELAY
R-CH R-CH
DRIVER
Q400
OVERLOAD
DETECT
D425,Q427
Q Q
3 7
RELAY
DRIVER
OVERLOAD
DETECT Q700
D475,Q477
R-CH R-CH
-30V
RECT
D801,802
IC1902
RELAY
DRIVER
+10V
3 1
Q809
REG
IC260
+15V
+7V
3 1
REG
-7V
3 2
REG
IC1001
IC265
-15V
+5V
3 1
REG
IC1031
+5V
3 1
REG
IC1901
5
+2.6V/+3.3V
4
2 REG
D927
D1001
+B SWITCH
IC1011 u 1 6 3
y
Q912,913
+5V
3 1
REG
22 22
http://www.xiaoyu163.com
2 4
8 9 9
J2501
PHONES
R-CH
TM2880
L
FRONT B
R-CH
R
L
FRONT A
R-CH
R
RY2880
TM602 (1/2)
L
SURROUND
R-CH
R
TM601
CENTER
TM602 (2/2)
6 3 1 5 1 5 0 8 9
L
SURROUND
SURROUND BACK
BACK (2ND ZONE)
R-CH
R
RY700
(DE898) (DE998)
T901
POWER
-30V REG
TRANSFORMER
Q250
D290
RELAY
SWITCH
D291
RY802,803
R861
RECT
D865
R862
EXCEPT E2 MODEL
R851
F901
RECT
D851-854
F1
F2
-30V
D251
RY911
RELAY
DRIVER
m
Q911
T902 EXCEPT E2,AR,KR,TW MODEL
POWER
F902
TRANSFORMER
RECT
c o
D921-924
US,
CND
.
MODEL
D925 D926
VOLTAGE
AC IN
DETECT
Q921
2
8 9 9
SPEAKERS
IMPEDANCE
USE 8-16Ω
• 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
KR : Korean model
2 4 9 8 2 9 9
TW : Taiwan model
E2 MODEL
S901
VOLTAGE SELECTOR
240V 220V 120V
-2
-3
240V
220V
F904
120V
-1
0V
F902
J911 J911
AC AC
OUTLET OUTLET
~ ~
AC IN