Block Diagram - Amp Section - Sony STR-DH540 Service Manual

5-3. BLOCK DIAGRAM – AMP Section –
POWER AMP
Q620
FL
Q622
Q624
Q625
Q670
FR
Q672
Q674
Q675
POWER AMP
ANALOG AUDIO
Q720
B
SECTION SL
Q722
(Page 15)
Q724
Q725
Q770
SR
Q772
Q774
Q775
POWER AMP
Q570
C
Q572
Q574
Q575
STR-DH540
BOOSTER
Q600
CURRENT
LIMITER
DETECT
Q602, Q603
Q604
BOOSTER
Q601
BOOSTER
Q650
CURRENT
LIMITER
DETECT
Q652, Q653
Q654
BOOSTER
Q651
BOOSTER
Q700
CURRENT
LIMITER
DETECT
Q702, Q703
Q704
BOOSTER
Q701
BOOSTER
Q750
CURRENT
LIMITER
DETECT
Q752, Q753
Q754
BOOSTER
Q751
BOOSTER
Q550
CURRENT
LIMITER
DETECT
Q552, Q553
Q554
BOOSTER
Q551
TH251
TH252
67 68
SYSTEM CONTROL
IC2100 (3/6)
CURRENT
RELAY
DETECT D600
DRIVER
Q605
Q375
CURRENT
RELAY
DETECT D650
DRIVER
Q655
Q350
CURRENT
DETECT
D700
Q705
RELAY
DRIVER
Q355
CURRENT
DETECT D750
Q755
CURRENT
D550
DETECT
Q555
RELAY
DRIVER
Q365
D2119
D2118
D2120
PROTECTOR
Q320 ~ Q325
92 66 86 90 91 89
17 17
J101
PHONES
RY921
TB501 (1/2)
+
L
-
FRONT
+
R
-
RY350
TB502
+
L
-
SURROUND
+
R
-
SPEAKERS
RY355
TB501 (2/2)
+
CENTER
-
RY365
4
: AUDIO
STR-DH540