Sony STR-K7100 - Multi Channel Av Receiver, Service Manual

Page: 21 / 74

STR-K7100
21 21
STR-K7100
8
12
11
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q705,706
RY701
D729
PRE DRIVER
IC701
IN 2
+VOUT2
-VOUT2
R
L
R
L
AUDIO
OUT
SUB
WOOFER
CENTER
SURROUND
R-CH
R-CH
R
L
R-CH
L-CH
R-CH
SL-CH
C-CH
R-CH
SR-CH R-CH
TUNER/
AUDIO
SECTION
C
TUNER/
AUDIO
SECTION
D
RY901
D804
D1001
F1
F2
-20V
+3.3V
(STBY)
+2.6V
+5V
-7V
+7V
TU+9V
-20V
RECT
D910-913
D914 D915
(SUB)
D1107
D1110
OVERLOAD
DETECT
D740,Q740
8
12
12
11
DRIVE
POWER AMP
Q501-504
CURRENT
DETECT
Q505,506
-20V REG
Q801
B-SWITCH
Q691,692
RELAY
DRIVER
Q901
AC IN
DETECT
Q921
PRE DRIVER
IC501
IN 2
+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
D529
RY601
RY560
PROTECTOR
D721,722,732,733
Q722,723,725,793,795
9
81
25
D1111
D1109
D1108
+9V
(STBY)
OVERLOAD
DETECT AMP
7 2
IC691
–45V
-B
+3.3V/+2.6V
REG
4
5
+3.3V 2
IC1901
+A5V
+5V
REG
1 3
IC1001
+3.3V
REG
1 3
IC1904
+9V
REG
1 3
IC1902
-15V
+15V
+7V
REG
3 1
IC801
-7V
REG
2 3
IC802
+5V
REG
1 3
IC1031
+B
R-CH
R-CH
R-CH R-CH
R-CH
R-CH R-CH
RECT
D802
RECT
D920-923
RECT
D805-808
T901
POWER
TRANSFORMER
TB001 (2/2)
TB001 (1/2)
TM604
J309
(MAIN)
FRONT A
FRONT B
RY791
PHONES
J790
R-CH
FRT A RY HP RY VACS CTRL C/SUR RY FRT B RY
SW RY
HP DETECT
FRONT_RY
PROTECTOR
HP DETECT
STOP
119
HP_RY
VACS CTRL
23
FRONT B RY
BRIGEABLE RY
17
POWER_RY
22
SW_RY
24
C/REAR/SB_RY
FRT A RY
HP DETECT
HP RY
FRT B RY
8
13
VACS CTRL
SW RY
C/SUR RY
SYSTEM
CONTROL
IC1907 (6/6)
PRE
DRIVE
PRE
DRIVE
SW-CH
-45V +B
-45V +B
-45V +B
PRE
DRIVE
R810
R2 AC
R2 AC
R811
R910
T902
POWER
TRANSFORMER
AC IN
~
F901
SPEAKERS
IMPEDANCE
USE 6-16 Ω
RELAY
DRIVER
Q610
RY610
RELAY
DRIVER
Q612
RELAY
DRIVER
Q560
RY801
RELAY
DRIVER
Q809
RELAY
DRIVER
Q710
RY710
TM602
RELAY
DRIVER
Q611
RELAY
DRIVER
Q790
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
5-8. BLOCK DIAGRAM — OUTPUT/POWER SECTION —
(Page 15)
(Page 15)