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Block Diagram - Power Amp Section - Sony STR-DA6400ES Service Manual

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Q Q

6-11. BLOCK DIAGRAM - POWER AMP Section -

3 7 6 3 1 5 1 5 0
PRE DRIVE
FRONT-L
Q1501 – 1505
PRE DRIVE
SL
Q1701 – 1705
(Page 36)
45
PRE DRIVE
SBL
Q1801 – 1805
PRE DRIVE
T E
L
1 3 9 4 2 2 9 6 5 1 3
C
Q1601 – 1605
L PREOUT
R-CH
SL PREOUT
R-CH
(Page 36)
46
SBL PREOUT
R-CH
C PREOUT
W PREOUT
RY1101
RY1102
RELAY DRIVE
Q1101
w w w
STR-DA6400ES
BOOSTER
Q1507, 1508
CURRENT
CURRENT
BIAS
LIMITTER
DETECT
DETECT
Q1521
IC1901
Q1522, 1523
Q1524
RV1501
BIAS ALIGNMENT
BOOSTER
Q1707, 1708
CURRENT
CURRENT
BIAS
DETECT
DETECT
Q1721
Q1722, 1723
Q1724
RV1701
BIAS ALIGNMENT
BOOSTER
Q1807, 1808
CURRENT
CURRENT
BIAS
DETECT
DETECT
Q1821
Q1822, 1823
Q1824
RV1801
BIAS ALIGNMENT
BOOSTER
Q1607, 1608
CURRENT
CURRENT
BIAS
DETECT
DETECT
Q1621
Q1622, 1623
Q1624
RV1601
BIAS ALIGNMENT
J1101
L
FRONT
R
L
SURROUND
R
J1102
L
SUR
BACK
R
CENTER
SUB
WOOFER
RY1103
RY1104
RELAY DRIVE
RELAY DRIVE
RELAY DRIVE
Q1102
Q1103
Q1104
x
a o
y
.
i
http://www.xiaoyu163.com
HP SW
HP-RY
LIMITTER
DETECT
LIMITTER
Q1907, 1908
50
4/8
LEVEL
(Page 42)
PROTECT
DETECT
Q1904 – 1906
SP-A
SP-B
R-CH
R-CH
Q
Q
3
7
6
REAR-RY
SB-RY
C-RY
PRE OUT
PREOUT-RY
u 1 6 3
39
39
2
4
8
9
9
J201
R-CH
PHONES
RELAY DRIVE
Q1402
RY1401
TM4002
+
L
FRONT A
+
R
+
L
+
FRONT B
R-CH
R
RELAY DRIVE
Q4001
RY4001
RELAY DRIVE
Q4002
RY4002
TM4101
SPEAKERS
+
L
SURROUND
+
R-CH
R
+
L
SURROUND
+
R-CH
BACK (ZONE 2)
R
3
1
5
1
5
0
8
9
RELAY DRIVE
Q4102
RY4102
RELAY DRIVE
Q4101
RY4101
TM4001
+
CENTER
RELAY DRIVE
Q4003
RY4003
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: AUDIO (ANALOG)
HP SW
HPSW
HP-RY
HP-RY
SP-A
SP-A-RY
SP-B
SP-B-RY
5
(Page 29)
REAR-RY
REAR-RY
SB-RY
SB-RY
C-RY
C-RY
m
PREOUT-RY
PREOUT-RY
c o
.
STR-DA6400ES
2
8
9
9
2
4
9
8
2
9
9

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