Block Diagram -Tuner Section - Sony CDX-L380X Service Manual

CDX-L380X
3-3. BLOCK DIAGRAM — TUNER SECTION —
J10
(ANTENNA)
(Page 15)
CD
SECTION
TUNER UNIT
TU10
A CDL
2 ANTFM MPX 10
1 ANTAM AM DET 8
FM BUFFER
Q21
IC20
NOISE
6 1
SUPPRESSOR
Q22
NOISE
SUPPRESSOR
ON
S-METER 14
I2C SDA
12
I2C SCL
13
9 10
RDS DECODER
SDA SCL
IC51
MULTI
LV IN
20 PATH 2
DET
MPX
RDS/RDBS
RDS DET 9 16 8
DEM/DEC
OSCO OSCI
4 5
X51
4.332MHz
E2PROM SDA
17
E2PROM SCL 18
ELECTRONIC VOLUME
IC401
OUT FL 30
1 SE L
13 MPX OUT RL 29
Q451 Q431
11 AM
MUTE MUTE
14 LEVEL
15 MPIN
20 SDA
21 SCL
MUTE
18 SM CONT
Q478,479
SYSTEM CONTROL
IC501 (2/3)
69
ATT
70 VOL ATT 35
BEEP
AMP ON 67
7 QUALITY
AMP ATT 66
TEL ATT 40
ACC
90 NS MASK
38
ACC IN CHECK
Q631
TEST IN 37
POWER SUPPLY
2 VSM
IC601
I2C SIO
45
47 I2C CKO BATT 7 VCC
2 8.7V ON
TUN ON 49 3 5.6V ON
8 MPTH PW ON 50 4 STB
27 DAVN
BATT DET
Q556
BATT DET
86 E2P SIO BU IN 28
Q551,557
87 E2P CKO
16 16
POWER AMP
IC404
CNP601
5 1 FL+
12
-
9 FL
3
2 RL+
9
11
10 -
7 RL
16 AUX
4 FR+
-
12 FR
4 STBY
R-CH
22 MUTE
3 RR+
-
11 RR
BATT 16 BATT
F901
TEL
13 ATT
ATT
Q651
7 ACC
15 TEST (NC)
AMP+B 6 5 AMP REM
6 ANT REM
ANT+B 8
BU+B 5 BU 5V
COM 8V 9 COM 8V
J401
-1
TU 5.6V 10 TU 5.6V
L
AUDIO
TU 8.7V 11 TU 8.7V
OUT
-2
REAR
R-CH
R
Signal path
: FM
BATT
: MW
BATT
: CD
R-ch is omitted due to same as L-ch.