Block Diagram - Main Section - Sony HCD-GN88D Service Manual

– MAIN Section –
RV722
MIC LEVEL
J721
MIC AMP
MIC
IC722(1/2)
VC (+5V)
DIGTAL
LPF1
ECHO
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 38
DOWNMIX-R 40 39
FRONT-L 41 34
FRONT-R 2 33
DVD DSP
32
C
(2/2)
SECTION
CENTER 13 12
(Page 27)
SURROUND-L 6 5
SURROUND-R
10 9
+
15 24
SW (LFE) 14
I/F
DATA CLOCK
17 18
86 87
+5V REG.
VC
A+9V
Q721
(+5V)
MIC OUT
+ MIC AMP
IC722 (2/2)
VC (+5V)
LPF2
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
R-CH
SURROUND
VOL CONTROL
IC103
11 25
4
31
3
30
29
8
28
R-CH 7
27
26
23 LPF 22
SYSTEM CONTROL
IC501
(3/5)
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
Q105
MUTE
Q802 Q803
MUTE
Q799
MUTE
Q800
MUTE
Q801
MUTE
Q798
Q650,651
BUFFER
77 71
29 29
R-CH
R-CH
SWOUT
+
24
VL
IN1
VOLUME
OUT1
15
CONTROL
18
CPU
COMMAND
INTERFACE
21 22 16 17
Q101
R-CH
D130
R-CH
MUTE
Q620, 670
RELAY DRIVE
Q701, 702
RY701
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
68 79 80 82 70
HCD-GN88D
REC-L
TUNER/TAPE
G (Page 28)
SECTION
3 4 L
5 AUDIO OUT
1 2 R
13
J730
AUDIO OUT
SWITCH Q730
IC730
DISPLAY
SPEANA
H
SECTION
(Page 31)
DBFB
AMP
F/B
SECTION
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)
: TUNER (FM/AM)
: DVD
: TAPE PLAY
: RECORD
: MIC INPUT
: MD/VIDEO (AUDIO) IN
: GAME IN (AUDIO)