Block Diagram - Main Section - Sony HCD-GN77D Service Manual

Q Q
3 7 6 3 1 5 1 5 0
– MAIN Section –
RV722
MIC LEVEL
J721
MIC AMP
MIC
IC722(1/2)
VC (+5V)
DIGTAL
LPF1
1
IN
IC721
J117
L
MD/VIDEO
(AUDIO)
R R-CH
IN
L
GAME
AUDIO
INPUT
R-CH
R
J601 (2/2)
TUNER/TAPE
TAPE L-CH
SECTION
E
(Page 28)
TUNER/TAPE
TUNER L-CH
F
SECTION
(Page 28)
DOWNMIX-L
37
T E
L 1 3 9 4 2 2 9 6 5 1 3
DOWNMIX-R 40
FRONT-L 41
FRONT-R 2
DVD DSP
C
(2/2)
SECTION
CENTER 13
(Page 27)
SURROUND-L 6
SURROUND-R
10
+
15
SW (LFE) 14
I/F
DATA CLOCK
17 18
86 87
w w w
.
+5V REG.
VC
A+9V
Q721
(+5V)
MIC OUT
+ MIC AMP
IC722 (2/2)
VC (+5V)
LPF2
ECHO
8
OUT
RV721
ECHO LEVEL
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC102
INC1
5
INB1
INPUT
4
INA1 SELECT
3
IND1 SWITCH
6
INEX1
7
R-CH
SUR1
42
SUR2
41
38
39 R-CH
34
SURROUND
33
VOL CONTROL
IC103
32
12 11
5 4
3
9
24
8
R-CH 7
23 LPF
SYSTEM CONTROL
IC501
(3/5)
x a o
y
i
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8
2 8
C
MID/
F OUT2
A
BASS &
14
B
TREBLE
C
A
R-CH
+
B
SURROUND OR
DPL BUFFER
L+R
+
19
+
A+9V
Q Q
3 7 6 3
Q105
MUTE
Q802 Q803
25
MUTE
31
Q799
30
29
28 MUTE
Q800
27
26
22
MUTE
Q801
MUTE
Q798
Q650,651
BUFFER
77 71
u 1 6 3
.
29 29
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2 4
9 9 8
R-CH
SWOUT
+
24
VL
IN1
VOLUME
OUT1
15
CONTROL
18
CPU
COMMAND
INTERFACE
21 22 16 17
Q101
R-CH
D130
1 5 1 5 0 8 9 2 4
R-CH
MUTE
Q620, 670
RELAY DRIVE
Q701, 702
RY701
68 79 80 82 70
m
c o
HCD-GN77D
2
9 9
REC-L
TUNER/TAPE
G (Page 28)
SECTION
3 4 L
5 AUDIO OUT
R-CH 1 2 R
13
J730
AUDIO OUT
SWITCH Q730
IC730
DISPLAY
SPEANA
H
SECTION
(Page 31)
DBFB
AMP
F/B
9 8 2 SECTION 9 9
I
(Page 30)
F-R
F-L
CENTER-L
AMP
J SECTION
(Page 30)
REAR-L
REAR-R
SUBWOOFER
J716
AC CUT DETECT
AMP
K
SECTION
(Page 30)
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
: DVD
: TAPE PLAY
: RECORD
: MIC INPUT
: MD/VIDEO (AUDIO) IN
: GAME IN (AUDIO)