Block Diagram – Power Section - Sony STR-K1600 Service Manual

STR-K1600
Ver. 1.1
5-6. BLOCK DIAGRAM — POWER SECTION —
IN 2
L-CH 8
R-CH R-CH
IN 2
SL-CH 8
SR-CH R-CH
TUNER/
AUDIO C
SECTION
IN 2
(Page 15)
C-CH 8
IN 1
SBL-CH
6
SW-CH
PROTECTOR 61
D1110
FRONT_A_RY 66
C/REAR/SB_RY 69
SW_RY 70
SYSTEM
CONTROL
IC1101 (6/6)
HP_RY 62
55
HP DETECT
45
VACS CTRL
58
POWER_RY
STOP 48
STR-K1600
PRE DRIVER
IC701
+VOUT2
PRE 12
DRIVE -VOUT2
DRIVE
11 POWER AMP
Q701-704
-45V +B
PRE DRIVER
IC601
+VOUT2
PRE 12
DRIVE -VOUT2
DRIVE
11 POWER AMP
Q651-654
-45V +B
PRE DRIVER
IC501
+VOUT2
PRE 12
DRIVE -VOUT2
DRIVE
11 POWER AMP
Q501-504
+VOUT1
PRE 2
DRIVE -VOUT1
POWER AMP
DRIVE
3
Q533,534
571,572
-45V +B
PROTECTOR
D721,722,732,733
Q723,725,793,795
+B
-B
B-SWITCH
–45V
Q691,692
FRT A RY
IC691
D1107 OVERLOAD
2 7
DETECT AMP
C/SUR RY
D1108
SW RY
D1111
HP RY
HP DETECT
VACS CTRL
D729
R-CH
CURRENT OVERLOAD
DETECT DETECT
Q705,706 D740,Q740
R-CH R-CH
R-CH
CURRENT OVERLOAD
DETECT DETECT
Q655,656 D640,Q640
R-CH R-CH
R-CH
D529
CURRENT OVERLOAD
DETECT DETECT
Q505,506 D540,Q540
CURRENT OVERLOAD
DETECT DETECT
Q535,536 D580,Q580
-20V REG
-20V
Q801
IC1902
+9V
TU+9V 3
REG
IC801
+7V
1
+7V
REG
-7V
3
-7V
REG
IC1001
IC802
+5V
+A5V 3 1
REG
IC1031
+5V
+5V 3
REG
IC1903
+1.8V 5 +3.3V/+1.8V
4
REG
+3.3V 2
D1001
IC1904
+3.3V
+3.3V
3 1
(STBY) REG
+9V
(STBY)
20 20
R-CH
RY791
RELAY
DRIVER
TB001 (1/2)
Q790
L
RY701
RELAY
DRIVER R-CH
Q710
R
TB001 (2/2)
L
RY601
RELAY
R-CH
DRIVER
Q610 R
TM603
RY610
RELAY
DRIVER
Q612
J408
AUDIO
OUT
RY560
RELAY
DRIVER
Q560
TRANSFORMER
RECT
D802
TUNER/
R2 AC
D
AUDIO
R2 AC
1 SECTION
R810
(Page 15)
+15V
RECT
D920-923
3
R811
2
R910
-15V RECT
D805-808
1
F1
F2
-20V
D804
RY901
RELAY
DRIVER
TRANSFORMER
Q901
RECT
D910-913
AC IN D914 D915
DETECT
Q921
J790
PHONES
FRONT
SPEAKERS
SURROUND IMPEDANCE
USE 6-16Ω
• Signal path
: TUNER (FM/AM)
CENTER
• R-ch is omitted due to
same as L-ch.
• Abbreviation
E51 : Chilean and Peruvian models
MX : Mexican model
SURROUND
BACK
SUB
E51 MODEL
WOOFER
S901
VOLTAGE
T901
SELECTOR
POWER
120V
(MAIN)
220V
S901
-3
240V
JW900
-2
-1
JW795
EXCEPT
E51 MODEL
MX
MODEL
T902
JW906
POWER
(SUB)
EXCEPT
E51,MX
MODEL
~
AC IN