Block Diagram - Main Section - Sony HCD-GN660 Service Manual

HCD-GN660/GN770/GX9000
Q Q
3 7 6 3 1 5 1 5 0
7-4. BLOCK DIAGRAM – MAIN SECTION –
REC L-CH
TUNER/TAPE DECK
D
SECTION
(Page 29)
SPEANA
H
DISPLAY SECTION
(Page 31)
J501
L
VIDEO/MD
53
(AUDIO) IN
R R-CH
CD L-CH
A
CD SECTION
4
(Page 28)
INPUT
3
TUNER L-CH SELECT
TUNER/TAPE DECK
F
2
SWITCH
SECTION
1
(Page 29)
TAPE L-CH
TUNER/TAPE DECK
C
SECTION
6
(Page 29)
59
J850
L
AUDIO
J504
R
R-CH
GAME
VIDEO OUT
INPUT
VIDEO
T E
L 1 3 9 4 2 2 9 6 5 1 3
J801
MIC AMP MIC AMP
MIC IC850 (1/2)
IC850 (2/2)
BIAS
Q721
RV801
MIC
LEVEL
TUNER/TAPE DECK REC MUTE
E
SECTION
(Page 29)
STB
CD
B
XTCN
SECTION
(Page 28)
CN512
2
TXD1
3
RTS1
6
CLK1
7
RXD1
ON BOARD
PROGRAM
9
RESET
D501
5
MCU VCC
EVER +4V
CNVSS
8
CN VSS
RESET
DISPLAY
G
SECTION
(Page 31)
w w w
HCD-GN660/GN770/GX9000
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
IC101 (2/2)
14 15 17
25
EQ
27
TONE/
28
VOLUME
CONTROL
SOUND
CONTROL R-CH
CIRCUIT
CPU
INTERFACE
8 10 35 34
65 66
AMS AMP
61 AMS-IN
Q115-117
DRIVE
39 AMS MUTE
Q124, 526, 527
100
TCN/
AC CUT MAIN 69
MICDET
PROT 81
FR RELAY 78
SYSTEM CONTROL
IC401 (3/4)
STK-MUTE 80
THERMAL VACS 94
HP MUTE 79
HP DET 33
LINK-RELAY 77
31 SW MUTE
MUTING CONTROL
LINE MUTE 34
9
CNVCC
x a o
. i
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R-CH
D624
FEED BACK
SWITCH
Q101
POWER AMP
IC600
11
18
10
8
R-CH 14
9
MUTING
12
Q570
R-CH
OVER LOAD
DETECT
OVER CURRENT
Q668, 618
PROTECTOR
IC627
STANDBY
2 VP
SWITCH
Q604, 606, 610
1 OCP
D627
OVER LOAD
+
3 OUT CT 4 DETECT SWITCH
Q402
Q Q
3 7
TEMPERATURE
DETECT SWITCH
Q628, 630
FAN MOTOR FAN MOTOR
ON SWITCH DRIVE
Q629 Q851, 852
TH629
TH630
SWITCH
Q505, 506
u 1 6 3
y
30 30
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8 9 2 4 9
HEADPHONE MUTING
Q640, 641
MUTING CONTROL
SWITCH
Q634, 682
JW681
VL (AC)
RY646
RY665
FRONT SPEAKER
RELAY DRIVE SURROUND
Q648 SPEAKER PROTECT
Q644, 647
RELAY DRIVE
Q666
6 3 1 5 1 5 0 8 9
M891
(FAN)
M
m
c o
.
8 2 9 9
J851
PHONES
GN660
TM600
+
L
–
SPEAKER
+
–
R
TM602 (1/2)
+
L
JW691
–
FRONT
TM601 (1/2)
SPEAKER
+
R
–
TM602 (2/2)
+
L
–
SURROUND
TM601 (2/2)
SPEAKER
+
R
–
GN770/GX9000
2 4 9 8 2 9 9
• R-ch is omitted due to same as L-ch.
• Signal path
F : TUNER (FM/AM)
E
: TAPE PLAY
G : REC
J : CD PLAY
q
: VIDEO/MD (AUDIO) IN
j : GAME INPUT (AUDIO)
k : GAME INPUT (VIDEO)
N : MIC INPUT