Sony STR-DA3200ES - Block Diagram - POWER AMP Section

STR-DA3200ES/DG1000
3636
STR-DA3200ES/DG1000
6-7. BLOCK DIAGRAM – POWER AMP Section –
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: AUDIO (ANALOG)
13
6
SBL PREOUT
C PREOUT
W PREOUT
L PREOUT
FRONT-L
LIMITTER
PROTECT
SL
SBL
C
SL PREOUT
12
11
PRE DRIVE
Q1501 – 1505
BOOSTER
Q1507, 1508
BIAS
Q1521
CURRENT
DETECT
Q1522, 1523
CURRENT
DETECT
Q1524
LIMITTER
IC1901
LIMITTER
DETECT
Q1907, 1908
LEVEL
DETECT
Q1904 – 1906
BIAS
RV1501
HP SW
RELAY DRIVE
Q1402
HP-RY
RY1401
PHONES
J702
R-CH
RELAY DRIVE
Q4001
SP-A
RELAY DRIVE
Q4002
SP-B
RY4001
RY4002
R-CH
L
FRONT A
R
L
R
TM4002
+
−
+
+
+
FRONT B
SPEAKERS
−
−
−
PRE DRIVE
Q1701 – 1705
BOOSTER
Q1707, 1708
BIAS
Q1871
CURRENT
DETECT
Q1872, 1873
CURRENT
DETECT
Q1874
BIAS
RV1851
RELAY DRIVE
Q4102
REAR-RY
RELAY DRIVE
Q4101
SB-RY
RY4102
RY4101
R-CH
R-CH
L
SURROUND
R
L
R
TM4101
+
−
+
+
+
SURROUND
BACK
−
−
−
PRE DRIVE
Q1801 – 1805
BOOSTER
Q1807, 1808
BIAS
Q1771
CURRENT
DETECT
Q1772, 1773
CURRENT
DETECT
Q1774
BIAS
RV1751
PRE DRIVE
Q1601 – 1605
BOOSTER
Q1607, 1608
BIAS
Q1571
CURRENT
DETECT
Q1572, 1573
CURRENT
DETECT
Q1574
BIAS
RV1551
RELAY DRIVE
Q4003
RELAY DRIVE
Q1104
C-RY
PREOUT-RY
PREOUT-RY
HP SW
HP-RY
SP-A
SP-B
REAR-RY
SB-RY
C-RY
PREOUT-RY
HP SW
HP-RY
SP-A-RY
SP-B-RY
REAR-RY
SB-RY
C-RY
RY4003
CENTER
TM4001
+
−
PRE OUT
J1101
SUR
BACK
FRONT
L
R
L
R
SURROUND
L
R
J1102
CENTER
SUB
WOOFER
R-CH
R-CH
R-CH
RY1104
RELAY DRIVE
Q1103
RY1103
RELAY DRIVE
Q1102
RY1102
RELAY DRIVE
Q1101
RY1101
(Page 35)
(Page 35)
(Page 39)
(Page 30)