Sony STR-K7000 - Block Diagram - Power Section

STR-K7000
19 19
STR-K7000
4-7. BLOCK DIAGRAM — POWER SECTION —
8
12
11
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q705,706
RY791
RY600
RY601
RY701
PRE DRIVER
IC701
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 6-16Ω
R
L
FRONT B
L
SURROUND
CENTER
R
R-CH
R-CH
R-CH
L-CH
R-CH
SL-CH
C-CH
R-CH
SR-CH R-CH
TUNER/
AUDIO
SECTION
E
RY901
RY801
AC1
AC2
F2
+3.3V
(STBY)
+2.6V
+5V-1
-7V
+7V
TU+10V
-20V
RECT
D910-913
T902
POWER
TRANSFORMER
D914
AC IN
DETECT
Q921
D915
AC IN~
OVERLOAD
DETECT
D740,Q740
8
61
12
11
DRIVE
POWER AMP
Q501-504
CURRENT
DETECT
Q505,506
-20V REG
Q801
B- SWITCH
Q691,692
RELAY
DRIVER
Q901
PRE DRIVER
IC501
IN2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D540,Q540
8
12
11
DRIVE
POWER AMP
Q651-654
CURRENT
DETECT
Q655,656
PRE DRIVER
IC601
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D640,Q640
RELAY
DRIVER
Q790
RELAY
DRIVER
Q610
RY501
RELAY
DRIVER
Q550
69
66
62
PROTECTOR
D721,722,732
Q722,723,725,793,795
55
58
48
68
F1
OVERLOAD
DETECT AMP
72
IC691
-B-1
-B
+3.3V/+2.6V
REG
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
13
IC1001
+3.3V
REG
13
IC1904
+9V
REG
13
IC1902
-15V
+15V
+7V
REG
31
IC801
-7V
REG
13
IC802
+5V
REG
13
IC1031
+B
+B-1
R-CH
R-CH
R-CH
R-CH
R-CH R-CH
RECT
D802
RECT
D920-923
RECT
D805-808
T901
POWER
TRANSFORMER
TM602
R
FRONT A
L
R-CH
TM601
TM502
J791
PHONES
HP-RY SB-RY FRONT RY REAR-RY CENTER RY HP DETECT
HP-RY
HP DETECT
SB-RY
FRONT-RY
REAR-RY
CENTER RY
HP_RY
FRONT RY
REAR_RY
PROTECTOR
HP DETECT
P0WER RY
67
SP_B_RY
72
BRIDGEABLE RY
STOP
C/SB RY
SYSTEM
CONTROL
IC1101 (5/5)
PRE
DRIVE
PRE
DRIVE
-B-1 +B-1
-B-1 +B-1
-B-1 +B-1
PRE
DRIVE
RELAY
DRIVER
Q710
RELAY
DRIVER
Q809
R810
R811
F901
R910
RELAY
SWITCH
B+ SWITCH
Q693-695
RELAY
DRIVER
Q800
D1110 D1108 D1107 D1111
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
(Page 14)