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

CDX-4000X/4005/4800X
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3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TU601
(Page 19)
CNJ600
ANTFM MPX
2 10
(ANTENNA)
1 ANTAM AM DET 8
AM IF
19
S-METER 14
SDA
12
SCL
13
VDD (8V) 5 TU +8V
IF BW 11 BACKUP +5V
VDD (5V) TU +5V
16
FM AGC 4
SDA (EEP) 17
SCL (EEP) 18
04
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ELECTRONIC VOLUME
IC701
A
3 AUX L OUT LF 30
CD
CDL 1 CD L
SECTION
13 MPX OUT LR 29
11 AM
12 AM IF
14 LEVEL
15 MPIN
20 SDA
21 SCL
18 MUTE
SYSTEM CONTROL
IC801 (2/3)
72 VOL MUT BEEP 35
AMP ON 69
71
AMP MUTE
65
TEL MUT
ACC IN 64
Q Q
3 7 6 3
S-MRTER
2
45 SDA TEST IN 66
47 SCL
6
DSTSEL
SW802(FREQUENCY SELECT)
99
PW ON
TU ON 73
BATT
3 FM AGC
74 EEP SDA
25
DOOR IND
75 EEP SCL
u 1 6 3
.
20 20
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2 4
9 9
PJ400
AUDIO OUT REAR AUDIO OUT FRONT
L R L R
–3 –4 –1 –2
POWER AMP
IC101
12
11
Q102 Q101
MUTE MUTE
16
AUX IN
4 STAND BY
22 MUTE
MUTE
SWITCH
B
Q401, 402
CD
ATT
SECTION
(Page 19)
TEL
MUTE
Q916
ACC
CHECK
Q905
1 5 1 5 0 8 9 2
BATT
CHECK
Q906
4800X
FM 50k
POWER SUPPLY
AM 9k
IC901
FM 200k
BATT 4 VCC AMP +B 2
AM 10k
BU +B 5 PULL UP +5V
1 AMP ON BACKUP +5V
GND 3
COM +8V TU +8V
COM +8V TU +8V TU +5V
REG REG REG
Q904 Q602 Q601
Q907
TU ON
SWITCH
PW ON
Q603
SWITCH
Q919
DOOR IND
SWITCH
Q908
m
c o
2
8 9 9
CNP501
5 1 FL+
3 9 FL–
9 2 RL+
8 10 RL–
4 FR+
12 FR–
R-CH
3 RR+
11 RR–
16 BATT
BATT
F901
13 ATT
7 ACC
4 9 8 2 9 9
BATT
15 TEST
5 AMP REM
AMP +B
6 ANT REM
SWITCH
Q921
TU ON
SWITCH
Q902
TU +5V
• Signal path
: FM
: AM
: CD