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