Block Diagram - Power Amp Section - Sony STR-DA5400ES Service Manual

6-9.

BLOCK DIAGRAM - POWER AMP Section -

PRE DRIVE
FRONT-L Q1501 – 1505
PRE DRIVE
SL Q1701 – 1705
45
(Page 34)
PRE DRIVE
SBL Q1801 – 1805
PRE DRIVE
C Q1601 – 1605
L PREOUT
R-CH
SL PREOUT
R-CH
46
(Page 34)
SBL PREOUT
R-CH
C PREOUT
W PREOUT
RY1101 RY1102
RELAY DRIVE RELAY DRIVE
Q1101 Q1102
STR-DA5400ES
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 PRE OUT
L
SUR
BACK
R
CENTER
SUB
WOOFER
RY1103 RY1104
RELAY DRIVE RELAY DRIVE
Q1103 Q1104
HP SW
HP-RY RELAY DRIVE
LIMITTER
DETECT LIMITTER
Q1907, 1908
4/8 50
LEVEL (Page 38)
DETECT PROTECT
Q1904 – 1906
SP-A RELAY DRIVE
SP-B
RELAY DRIVE
R-CH
R-CH
REAR-RY RELAY DRIVE
SB-RY RELAY DRIVE
C-RY RELAY DRIVE
PREOUT-RY
35 35
J702
R-CH PHONES
Q1402
RY1401
TM4002
+
L
−
FRONT A
+
−
R
+
−
L
+ FRONT B
R-CH
−
R
Q4001
RY4001
Q4002
RY4002
TM4101
SPEAKERS
+
L
−
SURROUND
+
R-CH
−
R
+
−
L
SURROUND
+
R-CH
BACK (ZONE 2)
−
R
Q4102
RY4102
Q4101
RY4101
TM4001
+
CENTER
−
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
REAR-RY
REAR-RY
(Page 27)
SB-RY
SB-RY
C-RY
C-RY
PREOUT-RY
PREOUT-RY
STR-DA5400ES