Block Diagram - Amp Section - Sony HCD-GNX60 Service Manual

HCD-GNX60/GNX70/GX9900
Q Q
3 7 6 3 1 5 1 5 0
7-5. BLOCK DIAGRAM – AMP SECTION –
MAIN
SECTION
(Page 29)
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
HCD-GNX60/GNX70/GX9900
POWER AMP
F-L 18
H
F-R 14
Q604, 606, 610
STK MUTE
CT
4
OUT
3
78 70
x a o
. i
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MAIN
DBFB F/B
SECTION G
(Page 29)
IC600
D624
11
10
+ +
8
9
12
OVER LOAD
DETECT
MUTING
TH629 Q668, 618
THERMAL
DETECT
Q628, 630
VP
DC DET 2
D550
OVER OCP
1
LOAD
IC550
OVER CURRENT
PROTECTOR
Q Q
3 7
TH630
THERMAL
DETECT
Q629
52
SYSTEM CONTROLLER
IC401 (4/5)
u 1 6 3
y
30 30
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8 9 2 4 9
+
RY646
MUTING RELAY DRIVE
Q640, 641 Q644, 647
MUTING
CONTROL
Q634,682
Q648
FAN DET
FAN-ON
FAN-K
HP-MUTE
6 3 1 5 1 5 0 8 9
Q506
E2, E3, E51
61 77 75 36 76 100
m
c o
.
8 2 9 9
J1103
PHONES
TM600
+
L
-
FRONT SPEAKER
+
R
-
GNX70/GX9900
TM601
+
L
-
SURR SPEAKER
+
R
-
RY665
RELAY DRIVE
Q666
FAN MOTOR
M891
M
DRIVE
DC FAN
Q580,581,584
Q583
FAN-CTL DISPLAY
I
SECTION
(Page 31)
VL(AC)
DISPLAY
J
SECTION
(Page 31)
2 4 9 8 2 9 9
• SIGNAL PATH
: FM