Block Diagram - Main Section - Sony HCD-XGR66 Service Manual

HCD-XGR66/XGR600
– MAIN SECTION –
J802
MIC1
J801
MIC AMP
+
MIC2
IC850 (1/2)
VC
VREF
A+9V
Q884
CD-L
A
(Page 22)
PB-L
B
(Page 23)
ST-L
D
(Page 23)
VREF FUNCTION SELECT
+9V
SWITCH
Q611
IC181
VC
J701 (1/2)
PHONO
X0 X
EQ AMP
L 12 13
X1
PHONO
IC601
14
IN X2
R R-CH 15
X3
11
L
A B
MD IN
10 9
R R-CH
Q181 Q182
J500 (2/2)
L
FRONT
INPUT
AUDIO R
R-CH
J500 (1/2)
FRONT
INPUT
MUTE
VIDEO
Q471
1
J721
VIDEO OUT
2 3
AMP
IC422 (2/2)
22 PWML+
24 PWML–
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: RECORD
: MIC INPUT
MIX AMP
IC422 (1/2)
MIC OUT
MIC AMP +
6 7
IC850 (2/2)
(XGR66)
RV801
MIC LEVEL
2
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
INC1
5
INB1
INPUT
4
+
INA1
SELECT
3
IND1
SWITCH
6
SURROUND OR
DPL BUFFER
INEX1
7
+
R-CH
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
11 XC-OUT
EQIC-DAT 80
X501
EQIC-CLK 81
32.768kHz
10 XC-IN
13 X-OUT
X502
TEMP DET 97
16MHz
AUDIO-OUT 1
15 X-IN
71 AU-SEL0
72 AU-SEL1
D461 Q802,803
66 ML-MUTE LEVEL SHIFT
LINE-MUTE 82
D462
20
STK-MUTE 83
MUTEOL
4 60 ML-RESET
TSTB HP-MUTE 86
MCK 6 7 PARTY-CLK
MSD 7 6
PARTY-DATA
MLAB 8 59
ML-WR
MEMP 9 54
ML-BUSY2
TEMPO
10 42
PARTY-TEMPO
XIS XOS
28 27
RHYTHM
PHRASE
X401 PROTECT 88
PLAYER
8.19MHz
IC461
XGR66 FRONT-RELAY 87
HP-IN 95
XGR600
8
C
MID/
F OUT2
A
BASS &
14
B
TREBLE
C
A
R-CH
B
L+R
+
19
SPEANA
POWER AMP
18 IC801 11
12
MUTE
Q114
TH831
STANDBY SWITCH
R-CH
Q803, 804, 834
R-CH
+
R-CH
24 24
R-CH
SWOUT
+
24 NC
VL
IN1
VOLUME
OUT1
15
CONTROL
18
CPU
COMMAND
INTERFACE
21 22 16 17
E
(Page 25)
Q115
Q166,167
R-CH
TEMPERATURE
DETECT SWITCH
Q842, 843
TEMPERATURE
DETECT SWITCH
Q831, 832
DELAY
Q833
PROTECTOR
IC912
D401
OVER LOAD
1 OCP F
DETECT (Page 25)
Q801, 851
AC DET
2 VP
CT 4 Q923
OUT
3
FRONT SPEAKER PROTECT
RELAY DRIVE
Q401, 402
REC-L
C (Page 23)
L
MUTE
R-CH R
Q701
J701 (2/2)
Q805,806
LEVEL SHIFT
FAN MOTOR
M901
B+
(FAN)
FAN MOTOR
M
DRIVE
Q961, 962
R-CH
TM401
D803
TWEETER & WOOFER
+
IMPEDANCE
USE 6 – 16Ω
–1
+
L
–
–2
R-CH
+
R
–
DBFB
R-CH
MUTE
Q805,855
J891
PHONES
RY401
PROTECT SWITCH
Q431
MD OUT