Sony HCD-XGV50, Service Manual

Page: 26 / 80

HCD-XGV50
26 26
– MAIN SECTION –
PHONO
EQ AMP
IC601
POWER AMP
IC801
PROTECTOR
IC912
CD-L
J701 (1/2)
A
To TUNER/TAPE
DECK SECTION
(Page 25)
To TUNER/TAPE
DECK SECTION
(Page 25)
To CD SERVO
SECTION
(Page 24)
To DISPLAY/KEY
CONTROL/POWER
SUPPLY SECTION
(Page 27)
D
PB-L
C
FUNCTION SELECT
SWITCH
IC181
R-CH
VOLUME
CONTROL
CPU
INTERFACE
INPUT
SELECT
SWITCH
SURROUND OR
DPL BUFFER
MID/
BASS &
TREBLE
R-CH
R-CH
COMMAND
F OUT2
OUT1
VL
IN1
+
Q802,803
LEVEL SHIFT
D803
D405
D406 Q115
Q166,167
R-CH
R-CH
+
+
+
MUTE
Q701
MUTE
Q805,855
DELAY
Q833
MUTE
Q114
X501
32.768KHz
X502
16MHz
+5V
REG
MUTE
Q401
OVER LOAD
DETECT
Q801, 851
TEMPERATURE
DETECT SWITCH
Q831, 832
TEMPERATURE
DETECT SWITCH
Q842, 843
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
INA1
INEX1
NC
NC
IND1
L+R
SPEANA
DATA CLK
EQIC-DAT
EQIC-CLK
TEMP DET
BB-A1 BB-B1
SWOUT
NC
REC-L
R-CH
X0 X
A B
X1
TH831
R-CH
R-CH
R-CH
M901
(FAN)
R-CH
–1
–2
FAN MOTOR
DRIVE
Q961, 962
R-CH
R-CH
RELAY DRIVE
Q401, 402
STANDBY SWITCH
Q803, 804, 834
TM401
FAN MOTOR
B+
L
R
PHONO
IN
L
R
MD (VIDEO) IN
J701 (2/2)
L
R
MD (VIDEO) OUT
D401
RY401
J891
PHONES
+
–
–
+
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
+
88
FRONT-RELAY 87
97
AUDIO-OUT 1
STK-MUTE 83
LINE-MUTE 82
HP-MUTE
XC-OUT
XC-IN
X-OUT
X-IN
86
11
10
18 11
12
HP-IN 95
80
81
2
14 15
24
18
22 16 21
5
3
6
INB1
INC1
4
M
L
R
19
AU-SEL0
AU-SEL1
13
15
71
14
13
10 9
12
16
8
VCD-VIDEO
X2
15
X3
VDD
VSS
11
72
CD-MUTE 5
PROTECT
F
To DISPLAY/KEY
CONTROL/POWER
SUPPLY SECTION
(Page 27)
G
ST-L
E
B
J721
VIDEO OUT
PROTECT SWITCH
Q431
FRONT SPEAKER
IMPEDANCE
USE 6 – 16
Ω
R-CH
17
Q805,806
LEVEL SHIFT
8
MIC
RECB1
7
C
A
B
C
A
B
Q181
Q611
A+10V
Q182
1
2
4
3
+
• R-ch is omitted due to same as L-ch.
Q809, 810
OCP
VP
OUT
Q923
AC DET
To TUNER/TAPE
DECK SECTION
(Page 25)
To CD SERVO
SECTION
(Page 24)
• SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: RECORD
: VIDEO