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

HCD-GN660/GN770/GX9000
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
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
DISPLAY RESET
G
SECTION
(Page 31)
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
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
TEMPERATURE
DETECT SWITCH
Q628, 630
FAN MOTOR FAN MOTOR
ON SWITCH DRIVE
Q629 Q851, 852
TH629
TH630
SWITCH
Q505, 506
30 30
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
M891
(FAN)
M
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
• 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