Block Diagram - Main Section - Sony HCD-XGV80 Service Manual

HCD-XGV80
– MAIN SECTION –
RV802
MIC LEVEL
J801
MIC AMP
MIC 1
IC850(1/2)
VC(+5V)
J802
MIC 2
DIGTAL
LPF1
LPF2
ECHO
1
IN OUT
IC851
To CD SERVO
CD-L
SECTION
A
(Page 24)
PB-L
To TUNER/TAPE
C
DECK SECTION
(Page 25)
ST-L
E
To TUNER/TAPE
DECK SECTION
MUTE
(Page 25)
Q401
Q809, 810
J701 (1/2)
PHONO
L EQ AMP
PHONO
IC601
IN
R R-CH
L
MD IN
A+10V
R R-CH
J500
L
AUDIO
R R-CH
GAME
VIDEO INPUT
INPUT
SELECT
IC191
VIDEO
IN4 A
8 2
IN3 B
J721
6 3
DVD IN2 C
VIDEO 4 5
INPUT
IN1
1
MUTE
VD-OUT
10
VIDEO OUT 6db
(75Ω)
To CD SERVO VCD-VIDEO
B
SECTION
(Page 24)
+5V REG.
VC
A+9V
Q884
(+5V)
ECHO MIXING MIC OUT
+
IC850 (2/2)
VC(+5V)
8
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
RV801
ELECTRICAL VOLUME
ECHO LEVEL IC111
INC1
5
INB1
INPUT
4
+
INA1
SELECT
3
IND1
SWITCH
6
FUNCTION SELECT
INEX1
7
SWITCH
IC181 +
R-CH
X0 X
12 13
X1
14
X2
15
X3
11
16 VDD
EQIC-DAT
EQIC-CLK
+5V
8 VSS
REG
A B
Q611
10 9
TEMP DET
Q181 Q182 AUDIO-OUT 1
71 AU-SEL0
AU-SEL1
72
5 CD-MUTE
18 V-SELA
100 V-SELB
76 VIDEO-MUTE
LINE-MUTE 82
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
STK-MUTE 83
HP-MUTE
XC-OUT
XC-IN
X-OUT
X-IN
PROTECT
FRONT-RELAY 87
HP-IN 95
2 8
C
MID/
F OUT2
A
BASS & 14
B
TREBLE
C
A COMMAND
R-CH
B
SURROUND OR
DPL BUFFER
L+R
+
19
SPEANA
CONTROL/POWER
F
SUPPLY SECTION
80
81
97
POWER AMP
Q802,803 18 11
IC801
LEVEL SHIFT
12
MUTE TEMPERATURE
Q114 DETECT SWITCH
TH831
STANDBY SWITCH
R-CH
Q803, 804, 834
TEMPERATURE
DETECT SWITCH
86
11
X501
32.768KHz
OVER LOAD
10
R-CH
13
X502
16MHz +
15
R-CH
88
POWER AMP
14 9
IC101
R-CH
26 26
R-CH
Q805,806
SWOUT
+ LEVEL SHIFT
24 NC
VL
IN1
VOLUME
15 OUT1
CONTROL
18
CPU
INTERFACE
21 22 16 17
To DISPLAY/KEY R-CH
Q115
D803
(Page 27)
+
Q166,167
R-CH
R-CH
R-CH
Q842, 843
Q831, 832
DELAY
Q833
PRPTECTPR
To DISPLAY/KEY
IC912
G CONTROL/POWER
D401
SUPPLY SECTION
DETECT 1
OCP
(Page 27)
Q801, 851
AC DET
PROTECT SWITCH
Q431
2 VP
4
Q923
3 OUT
RELAY DRIVE
Q401, 402
D410
OVER LOAD
DETECT
Q101, 151
To TUNER/TAPE
REC-L
D
DECK SECTION
(Page 25)
L
MD OUT
R-CH R
MUTE
Q701
J701 (2/2)
FAN MOTOR
B+
M901
(FAN)
FAN MOTOR
M
DRIVE
Q961, 962
TM401
D406
D405
FRONT SPEAKER
IMPEDANCE
USE 6 – 16Ω
–1
+
L
–
–2
+
R
–
MUTE
Q805,855
J891
PHONES
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
RY401 : CD PLAY
: TAPE PLAY
: RECORD
: MIC INPUT
: VIDEO
TM402
RY402 +
L
–
SURROUND SPEAKER
IMPEDANCE
+
USE 8 – 16Ω
R-CH
R
–