Block Diagram -Power Amp Section - Sony STR-DA7ES Service Manual

STR-DA4ES/DA7ES/VA333ES
6-6. BLOCK DIAGRAM — POWER AMP SECTION —
IC502
IC501
POWER AMP
BOOSTER
FL
6 INPUT +VE OUT 2 1
2
NF 5
RV501
+BV 13 +VCC
14 +VCC 4
3 5 BOOSTER
-VE OUT
-BV 15 -VEE
MUTE 1
RV501
IC503
IDLING
CURRENT
FRONT L
IC702
IC701
POWER AMP
BOOSTER
SL 6 INPUT +VE OUT 2 1
2
NF 5
A
RV701
+BV
13 +VCC
4
14
+VCC
AUDIO
BOOSTER
3
-VE OUT 5
SECTION -BV 15
-VEE
MUTE RV701
1
(Page
IDLING IC703
CURRENT
22)
SURROUND
IC651 IC654
POWER AMP
BOOSTER
6 2
CENTER INPUT +VE OUT 1
2
5
NF
RV652
+BV 13
+VCC
14 +VCC 4
-VE OUT 3 5
BOOSTER
-BV 15 -VEE
MUTE 1
RV652
IDLING IC655
IC601 CURRENT
IC652
CENTER
POWER AMP
BOOSTER
+VE OUT 12 1
+BV
13 +VCC
14
+VCC
2
9
NF
15
-BV -VEE
RV651
4
SBL 8 INPUT
-VE OUT 11 5 BOOSTER
MUTE 1
RV651
IC653
IDLING
CURRENT
SURR BACK-L
Q501,503
MUTE
73
71
HP
IC2001(3/3)
+3.3VB
SYSTEM CONTROL
141
BACKUP
3 +B
4
5
RY504
R CH
Q599
RELAY
DRIVER
1
CURRENT
2
PROTECT
3
RY503
Q508,509
-B
Q598
RELAY R CH
DRIVER
Q621 RY661
R CH
3 +B RELAY
DRIVER
4
5 TMP701(1/2)
RY702
Q707
R CH
RELAY
1 DRIVER
CURRENT
2
PROTECT
3
Q708,709
-B
3 +B
4
5 RY601
Q611
RELAY
DRIVER
1
CURRENT
2
PROTECT
3
Q651,652
-B
3 +B
4 TMP701(2/2)
RY651
5
Q661
R CH
RELAY
1 DRIVER
CURRENT
2
PROTECT
3
Q658,659 Q710
-B LEVEL
IC635 Q635
DETECT
D548
Q547-549 Q660
2 7
CURRENT LEVEL
DETECT
PROTECT
DRIVE
+50V
+BV
REG
D544
Q592
D545
-50V
D541 -BV
REG
D542
D543
D540
72 7 1 2 3 4 5 17 19
IC2103(2/2)
DATA DECODER VDD 24
60 69
J101 PHONES
IC313
-15V
-15VA 3 2
REG
TM501
IC1810
+5V
L
FRONT D+5V 3 1
REG
A
R
IC1809
L
FRONT
+12V
TUN+12V 3 1
B
REG
R
IC1808
+3.3V
TUN+3.3V 3 1
REG
L
SURROUND
R
IC1805
+3.3V
DSW+3.3V 3 1
REG
IC1806
SPEAKERS
+4.7V
DSW+4.7V 4 2
REG
1
Q1807
IC1807
+5V
TM601
DSW+5V 3 1
REG
CENTER Q1801
B+
+5V2
SWITCH
Q1803
B+
-5V
SWITCH
Q1802
EXCEPT AEP MODEL
Q2104
Q1804
B+
L +7V 3
SWITCH
SURR BACK
R
IC1801
+3.3V
+3.3VB 3 1 3
REG
+5VB
Q591,593
+B
-B
IC2105(6/6)
13
N
DIGITAL
+5V SECTION
(2/2)
(Page 25)
26 26
DA4ES,DA7ES
IC802
+12V
+12V
1 3
REG
(TRIG2)
IC312
+15V
+15VA 3 1
IC803
REG
+12V +12V
1 3
IC310
REG (TRIG3)
+12V
RY+12V 3 1
REG
POWER
TRANSFORMER
D803-806
IC308
+15V
+15V 3 1
REG
IC309
(-24V)
-15V
-15V 3 1
REG F805
D807
Q1805
D1803-1806
(+9V)
B+
SWITCH
F806
(-9V)
F1
Q1806
B+
F2
Q801
SWITCH
D812
+40V
IC1803
+40V
REG
+5V
3 1
REG
D813
IC1804
S902
-5V
3 2
IMPEDANCE SELECTOR
REG
4Ω 8Ω
F802
D801,802
IC2112
+7V
+B
1
REG
F801
D908
IC1802 -B
+5V POWER
1
REG SWITCH
Q902-904
Q901
D1903
12 RELAY
DRIVER
RY901
D1902
D901-904 T902
MD2
D906
Q2101
LEVEL
CHECK
D907
• R-ch is omitted due to same as L-ch
• Signal Path
: CD(ANALOG)
IC801
+12V
+12V
1 3
REG (TRIG1)
DA7ES
T1
F901
AEP MODEL
F902
EXCEPT AEP MODEL
JW904
J901 EXCEPT
AEP MODEL
AC
OUTLET
JW901
EXCEPT
JW902
KR MODEL
KR MODEL
~AC IN