Block Diagram - Power Amp Section - Sony STR-DA3200ES Service Manual

STR-DA3200ES/DG1000
6-7. BLOCK DIAGRAM – POWER AMP Section –
PRE DRIVE
FRONT-L
Q1501 – 1505
PRE DRIVE
SL
Q1701 – 1705
11
(Page 35)
PRE DRIVE
SBL
Q1801 – 1805
PRE DRIVE
C
Q1601 – 1605
L PREOUT
R-CH
SL PREOUT
R-CH
(Page 35) 12
SBL PREOUT
R-CH
C PREOUT
W PREOUT
RY1101 RY1102
RELAY DRIVE RELAY DRIVE
Q1101
STR-DA3200ES/DG1000
BOOSTER
Q1507, 1508
CURRENT CURRENT
LIMITTER
BIAS
DETECT DETECT
IC1901
Q1521
Q1522, 1523 Q1524
RV1501
BIAS
BOOSTER
Q1707, 1708
CURRENT CURRENT
BIAS
DETECT DETECT
Q1871
Q1872, 1873 Q1874
RV1851
BIAS
BOOSTER
Q1807, 1808
CURRENT CURRENT
BIAS
DETECT DETECT
Q1771
Q1772, 1773 Q1774
RV1751
BIAS
BOOSTER
Q1607, 1608
CURRENT CURRENT
BIAS
DETECT DETECT
Q1571
Q1572, 1573 Q1574
RV1551
BIAS
J1101
L
FRONT
R
L
SURROUND
R
J1102 PRE OUT
L
SUR
BACK
R
CENTER
SUB
WOOFER
RY1103 RY1104
RELAY DRIVE RELAY DRIVE
Q1102 Q1103 Q1104
HP SW
HP-RY
RELAY DRIVE
LIMITTER
Q1402
DETECT LIMITTER
Q1907, 1908
13
LEVEL
(Page 39)
DETECT PROTECT
Q1904 – 1906
R-CH
SP-A RELAY DRIVE
Q4001
SP-B
RELAY DRIVE
Q4002
REAR-RY RELAY DRIVE
Q4102
SB-RY RELAY DRIVE
Q4101
C-RY RELAY DRIVE
Q4003
PREOUT-RY
36 36
J702
R-CH PHONES
RY1401
TM4002
+
− L
FRONT A
+
−
R
+
−
L
+ FRONT B
−
R
RY4001
RY4002
TM4101
SPEAKERS
+
− L
SURROUND
+
R-CH
−
R
+
−
L
SURROUND
+
R-CH
BACK
−
R
RY4102
RY4101
TM4001
+
− CENTER
RY4003
HP SW
HP SW
HP-RY
HP-RY
SP-A
SP-A-RY
SP-B
SP-B-RY
6 (Page 30)
REAR-RY
REAR-RY
SB-RY
SB-RY
C-RY
C-RY
PREOUT-RY
PREOUT-RY
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: AUDIO (ANALOG)