Block Diagram - Amp Section; Ao Y - Sony HCD-GN100D Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-6. BLOCK DIAGRAM – AMP SECTION –
F-L
F-R
STK MUTE
MAIN
J
SECTION
(Page 35)
REAR-L
GN90D
T E
L 1 3 9 4 2 2 9 6 5 1 3
REAR-R
CENTER AUDIO
SELECT
IC705
4
CENTER
7
L+R 2
3
GN100D
RTS1
DISPLAY/POWER
L
CLK1
SECTION
(Page 36)
80 81 78
w w w
HCD-GN90D/GN100D
IC600
POWER AMP
18 11
10
+
MUTE
Q570
14
8
9
MUTE
12
Q520
OVER LOAD
DETECT
MUTING Q618,668
TH629
Q604,606,610
THERMAL
DETECT
Q628,630
Q629
CT VP
4 2
DC DET
D627
OUT
OCP
OVER
3 1
LOAD
IC627
OVER CURRENT
OVER LOAD
PROTECTOR
DETECT
Q730,780,770
14 7
6
+
MUTE
Q750
10 4
5
MUTE
Q700
15 17
18
MUTE
Q740 IC700
POWER AMP
TH630
34 94
SYSTEM CONTROL
IC401 (4/5)
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y
. i
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MAIN
I
SECTION
(Page 35)
DBFB
F/B
D624
+
RY646
MUTING RELAY DRIVE
Q641, 640 Q644,647
MUTING
CONTROL
Q682,634
Q648
HP-MUTE
D760
Q Q
3 7 6
RELAY DRIVE
Q762
RY760
Q764
RELAY DRIVE
Q763
RY761
Q765
DELAY
Q402
72 71 69 79
u 1 6 3
.
37 37
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8 9 2 4 9
J851
PHONES
TM600
+
L
-
FRONT SPEAKER
IMPEDANCE
+
USE 6-16Ω
R
-
DISPLAY/POWER
AC CUT DETECT
M SECTION
(Page 36)
M891
DC FAN
FAN DET
FAN MOTOR
FAN-ON M
DRIVE
Q530,
FAN-CTRL
Q521-524
J701 (1/2)
+
L
-
3 1 5 1 5 0 8 9 2
SURROUND
SPEAKER
IMPEDANCE
+ USE 8Ω
R
-
J700
+ CENTER
SPEAKER
IMPEDANCE
-
USE 8Ω
J701 (2/2)
27 78 33
• R-ch is omitted due to same as L-ch
• Signal path.
F
: TUNER (FM/AM)
m
c o
HCD-HCDGN90D/GN100D
8 2 9 9
4 9 8 2 9 9