Block Diagram -Tuner Section - Sony CDX-CA650X Service Manual

CDX-CA650X/CA660X/CA690X
3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TU601
PJ601
2 ANTFM
(ANTENNA)
1 ANTAM
E2PROM SDA
E2PROM SCL
PJ401 (1/2)
L
BUS AUDIO IN
R R-CH
ELECTRONIC VOLUME
(Page 15)
A
4
CD
CDL 43
SECTION
MPX 10 12
AM DET 8 9
13
14
19
20
17
70
S-METER 14
2
I2C SDA
12 45
I2C SCL
13 47
( )
FREQUENCY
SW802
SELECT
FM 50K
9
AM 9K
FM 200K
AM 10K
CA690X CA650X/
CA660X
17 86
18 87
CA650X/CA690X
IC401
AUX LCH OUT FL 28 3 1 2 13
L-CH L-CH
CA660X
AMP AMP
MD LCH
IC301 IC431
MPXI OUT RL 27 5 7 7 12
Q102
AM
MUTE
CA650X/CA690X
LEVEL
MPIN
SDA
SCL
MUTE
EXA ATT
CONT
Q912,913
SYSTEM CONTROL
IC801 (2/3)
ATT 69
VOL ATT BEEP 35
AMP ON 67
66
AMP ATT
TEL ATT 40
ACC IN 38
37
TEST IN
VSM
I2C SIO
I2C CKO
DSTSEL
49
TUN ON
EE SIO
EE CKO
PW ON 50
16 16
R-CH
R-CH
CA650X/CA690X
POWER AMP
IC404
5
3 1 12
3
L-CH
CA660X
AMP
IC405
9
5 7 11
7
Q101
16 AUX
MUTE
CA650X/CA690X
4 STBY
R-CH
22 MUTE
R-CH
D908
DELAY BATT
TEL
ATT
Q901
ACC
CHECK
Q902, D934, 935
POWER SUPPLY
IC901
D919
AMP +B 6
D907
ANT +B 8
BATT
VCC 7
F901
10A
2 8.7V ON
3 5.6V ON
BU+B 5 BU 5V
4 STB COM 8V 9 COM 8V
TU 5.6V 10 TU 5.6V
TU 8.7V 11 TU 8.7V
PJ401 (2/2)
L
AUDIO OUT FRONT
R
L
AUDIO OUT REAR
R
CNP902
1 FL+
9 FL-
2 RL+
10 RL-
4 FR+
12 FR-
3 RR+
11 RR-
13 ATT
7 ACC
15 TEST
5 AMP R
6 ANT R
8
GND
19
17
18
16 +B (BATT)
• Signal path
:FM
:AM
:CD