Block Diagram -Tuner Section - Sony CDX-4000RV Service Manual

CDX-4000RV
3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TU1
(Page 21)
J1
ANTFM MPX
2 10
(ANTENNA)
1 ANTAM AM DET 8
IF AM
19
BUFFER
Q1
NOISE
5
S-METER 14
I2C SDA 12
I2C SCL
13
SDA
LV IN
20
MPX
RDS DET 9 16
OSCO
FM AGC 4
E2PROM SDA 17
E2PROM SCL 18
04
ELECTRONIC VOLUME
IC151
A
OUT LF 30
CD
CDL 1 SEL
SECTION
13 MPX OUT LR 29
11 AM
AM IF
12
Q111 Q121
14 LEVEL
MUTE MUTE
15 MPIN
20 SDA
21 SCL
18 SM
MUTE
SYSTEM CONTROL
CONT
IC501 (2/3)
Q131
VOL ATT
57 BEEP 16
IC90
56 TUN ATT AMP ON 59
1 50 QUALITY AMP MUTE 60
DET
79
TEL ATT
Q90
32 NS MASK
NOISE ON ACC IN 82
TEST IN 81
53 VSM
I2C SIO
70
71 I2C CKO
9 10
RDS DECODER
SCA 1
IC51 TU ON
MULTI
PATH 2 52 MPTH PW ON 120
DET
RDS/RDBS
8 64 DAVN
DEM/DEC
OSCI
4 5
X51
4.332MHz
51 FM AGC
9 E2P SIO
10 E2P CKO
22 22
CNJ151
AUDIO OUT REAR
–1 –2
L R
POWER AMP
IC611
5
12
3
9
11
8
Q181 Q171
16 AUX IN
MUTE MUTE
4 STAND BY
R-CH
22 MUTE
MUTE
CONT
B
Q621, 622 BATT
F901
CD
ATT
SECTION
(Page 21)
TEL
ATT
Q571
ACC
CHECK
Q661
POWER SUPPLY
IC671
BATT 7 VCC AMP +B 6
2 8.7V ON ANT +B 8
3 5.6V ON
5
BU +B BU 5V
4 STB COM 8V 9 COM 8V
TU 5.6V 10 TU 5.6V
TU 8.7V 11 TU 8.7V
• Signal path
:FM
:MW
:CD
CN601
1
FL+
9 FL–
2
RL+
10 RL–
4 FR+
12 FR–
3
RR+
11 RR–
16 BATT
13 ATT
7 ACC
15 TEST
5 AMP R
6 ANT R