Block Diagram - Power Section - Sony STR-K7000 Service Manual

4-7. BLOCK DIAGRAM — POWER SECTION —
IN 2 PRE
L-CH 8
DRIVE
R-CH
R-CH
TUNER/
E
AUDIO
SECTION
IN 2 PRE
(Page 14)
SL-CH 8
DRIVE
SR-CH R-CH
IN2 PRE
C-CH
8
DRIVE
PROTECTOR 61
HP_RY 62
FRONT RY 66
REAR_RY 69
C/SB RY 68
HP DETECT
55
SP_B_RY 67
SYSTEM
CONTROL
IC1101 (5/5)
BRIDGEABLE RY 72
P0WER RY 58
STOP 48
STR-K7000
PRE DRIVER
IC701
+VOUT2
12
DRIVE -VOUT2
11 POWER AMP
Q701-704
-B-1 +B-1
PRE DRIVER
IC601
+VOUT2
12
DRIVE -VOUT2
11 POWER AMP
Q651-654
-B-1 +B-1
PRE DRIVER
IC501
+VOUT2
12
DRIVE -VOUT2
11 POWER AMP
Q501-504
-B-1 +B-1
PROTECTOR
D721,722,732
Q722,723,725,793,795
+B
HP-RY
-B
FRONT-RY
-20V
B- SWITCH
-B-1
REAR-RY
Q691,692
TU+10V
CENTER RY
IC691
OVERLOAD
HP DETECT 2 7
DETECT AMP +7V
SB-RY
B+ SWITCH -7V
+B-1
Q693-695
+5V-2
+5V-1
+2.6V
+3.3V
+3.3V
(STBY)
RELAY
DRIVER
CURRENT OVERLOAD
Q790
DETECT DETECT
Q705,706 D740,Q740
RELAY
R-CH R-CH
DRIVER
Q800
R-CH
RELAY
DRIVER
Q710
CURRENT OVERLOAD
DETECT DETECT
Q655,656 D640,Q640
R-CH R-CH
R-CH
CURRENT OVERLOAD
DETECT DETECT
Q505,506 D540,Q540
-20V REG
Q801 IC1902
+9V
3 1
REG
IC801
+15V
+7V
1 3
REG
-7V
3 1
IC1001 REG
IC802
+5V -15V
3 1
REG
+5V
3 1
REG
IC1901
IC1031
5 +3.3V/+2.6V
4
REG
2
IC1904
+3.3V
3 1
REG
19 19
J791
PHONES
R-CH
TM602
L
FRONT B
R-CH
R
RY791
TM601
IMPEDANCE
RY600 L
FRONT A
R-CH
R
RY701
RY601
L
RELAY SURROUND
DRIVER
R-CH
Q610 R
RY501
RELAY
DRIVER
TM502
Q550
CENTER
T901
POWER
TRANSFORMER
RELAY
SWITCH
RECT
D802
RELAY
DRIVER
Q809
RY801
R810
RECT
D920-923
R811
AC1
R910
RECT
D805-808
AC2
F1
F2
RY901
RELAY
T902
DRIVER
POWER
Q901
RECT TRANSFORMER
D910-913
AC IN
DETECT
Q921
D914 D915
STR-K7000
SPEAKERS
USE 6-16Ω
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
~
AC IN