Block Diagram -Tuner Section - Sony CDX-M730 Service Manual

CDX-M730
4-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
AJ1
ANT AM
1
(ANTENNA)
2 ANT FM
(Page 27)
CD
A
CDL
SECTION
DISPLAY SACLK
B
SECTION SAOUT
(Page 29)
IC311
TU601
3
MPX
10
AMDET 8
AEP,UK,E MODEL
FM AMP
Q607
NOISE
5 CANCEL 1
IC602 Q605
RDS DECODER
IC601
RDS SDA
9 16 FM DET 9
4 XO SCL 10
X601
4.3MHz
5 MPTH 2
XI
DAVN 8
20 S METER
S METER 14
SDA
12
SCL
13
SDA 17
EEPROM
SCL 18
FM AGC 4
• Signal path
: FM
: AM/MW
: CD
• R-ch is omitted due to
same as L-ch.
ELECTRONIC VOLUME
IC305
4 AUXL
43 MDL
28
OUT LF
21 SACLK
23 SA OUT
38 AC OUTL
27
1 OUT LR
33 AC INL
12 MPX1
9 AM
14
MP IN
IC409
13 LEVEL
3 1
19 SDA
OUT LR 23
20 SCL
16 QUAL
MUTE
17
SM
CONTROL
Q401,402
SYSTEM CONTROL
IC801 (2/3)
31
VOL ATT
Q410
50 QUALITY
56 NS MASK
ATT 5
55
AMP ON
16
TEL ATT
ILL IN 95
ACC IN 81
ILLUM CHECK
X1A 73
Q902
X802
ACC CHECK
32.768kHz
74
X0A
Q918
52 MPTH
75 DAVN
TEST IN 84
PW ON 83
53 VSM X0 92
POWER
X801
70 I2CSIO
CONT
+9V COM +8V
3.68MHz
71 I2CCKO 93
X1
Q905,919
TUN ON 114
10 E2PSIO
11 E2PCKO
POWER
CONT TU +8V
51 FM AGC +9V
Q924,925
28 28
PJ401
–1
–2
R-CH
–5
Q202
–6
R-CH
–3
Q201
–4
R-CH
PJ402
–1
–2
Q403 POWER AMP
IC903 CNP901
1
5
FL
12
9
3
2
9
RL
11
10
7
22
MUTE
4 STBY
4
12
Q923
3
R-CH
11
13
14
7
15
Q917
5
POWER
BATT
6
CONT
Q461
Q901
19
BATT
17
D912
IC905
BACKUP+6V
18
+5V
BATT
2 1
REG
D905,914 16
PULLUP+5V
L
BUS AUDIO IN
R
L
AUDIO OUT
FRONT
R
L
AUDIO OUT
REAR
R
L
SUB OUT (MONO)
R
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
TEL MUTE
ILL
ACC
TEST
AMP REM
ANT REM
B+
F901
B+