Block Diagram - Audio Amp Section - Sony STR-DA1000ES Service Manual

STR-DA1000ES/DB790
Q Q
3 7 6 3 1 5 1 5 0
6-4. BLOCK DIAGRAM – AUDIO AMP Section –
J
(Page 21)
K
(Page 21)
T E
L 1 3 9 4 2 2 9 6 5 1 3
M
(Page 21)
(DA1000ES)
N
(Page 21)
L
(Page 21)
w w w
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
BIAS
FL
PRE DRIVE
Q2004, 2005
Q2001, 2003
RV431
BIAS
BIAS
Q2006
BIAS
C
PRE DRIVE
Q2204, 2205
Q2201, 2203
RV631
BIAS
BIAS
Q2206
BIAS
SBL
PRE DRIVE
Q2704, 2705
Q2701, 2703
RV731
BIAS
BIAS
Q2706
BIAS
SB (R)
PRE DRIVE
Q2304, 2605
Q2301, 2603
RV681
BIAS
BIAS
Q2306
BIAS
SL
PRE DRIVE
Q2404, 2405
Q2401, 2403
RV531
BIAS
BIAS
Q2406
x a o
y
. i
: AUDIO (ANALOG)
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BOOSTER
Q402
D411 CURRENT
BIAS
DETECT
Q431
Q432, 433
BOOSTER
Q403
D611 CURRENT
DETECT
Q632, 633
BOOSTER
Q602
BIAS
Q631
D711
CURRENT
BOOSTER
DETECT
Q603
Q732, 733
Q Q
3 7 6
BOOSTER
Q702
BIAS
Q731
D661 CURRENT
BOOSTER
DETECT
Q703
Q682, 683
BOOSTER
Q652
BIAS
Q681
BOOSTER
Q653 D511 CURRENT
DETECT
Q532, 533
BOOSTER
Q502
BIAS
Q531 OVER VOLTAGE
+
DETECT B+
BOOSTER
Q822
Q503
SYSTEM CONTROLLER
IC1601(4/6)
DETECT 43
HP DETECT 55
REAR RELAY 70
FRONT RELAY 72
HEADPHONE RELAY 68
u 1 6 3
SPB RY 30
C/SB RY 29
PROTECTOR 67
22 22
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2 4
8 9 9
R-CH
RY806
RELAY
DRIVE
Q823
RY449
RELAY
DRIVE
Q809
RY444
RELAY
DRIVE
Q808
–1
3 1 5 1 5 0 8 9 2
–2
RELAY
DRIVE
Q811
RY549
AF POWER
PROTECTOR
RELAY
Q802, 803,
DRIVE
Q805
Q807
m
c o
.
D816 D818 D812 D818
2
8 9 9
J1086
PHONES
TM699
+
L
–
FRONT A
–
R
+
R-CH
TM449 (1/2)
+
L
–
FRONT B
–
R
+
R-CH
TM444
+
CENTER
–
RY649
(DA1000ES)
SPEAKERS
(DA1000ES) (DB790)
+
4 9 8 2 9 9
L CENTER
–
SURR
BACK
+
SURROUND
R
BACK
–
RY699
TM449 (2/2)
+
L
–
SURR
–
R
+
R-CH
SW
R (Page 21)
D820