Read Sony CDX-M730 (serv.man2) Service Manual online
3
3
CDX-M730
• IC BLOCK DIAGRAMS
IC305 TDA7406
33
34
35
36
37
38
39
40
41
42
43
44
1 2 3 4 5
6 7 8
9
10
11
28 27
30 29
32 31
SOFT STEP
FADER
SOFT STEP
FADER
SOFT STEP
FADER
SUB
WOOFER
FILTER
MONO
FADER
MIXER
OUTPUT SELECTOR
HIGH PASS
SOFT STEP
VOLUME
7BAND
EQUALIZER
SOFT MUTE
BEEP
PAUSE
PLL
PIL, DET
LOUDNESS
SPECTRUM
ANALIZER
IN GAIN
+ AUTO
ZERO
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
II
C-BUS
DIGITAL
CONTROL
DEMODULATOR
+STEREO ADJUST
+STEREO BLEND
PILOT
CANCELLATION
MULTI
PATH
DETECTOR
AM/FM
NOISE
BLANKER
PULSE
FORMER
SUPPLY
25kHz
LP
86kHz
LP
STD
IN GAIN
S & H
HIGH OUT
QUAL.
A/D
12
13
14
15
16
18
19
22
21
20
INPUT MULTIPLEXER
XR R
AUX R
PD–
AUX L
PAUSE
PHONE
TIM
NAVI
AM/MPX2
AMIF
CMPX
XR L
MDL
MDR
CDR
CDL
CREF
AC OUTL
SWACOUT
ACOUTR
ACINR
SWIN
ACINL
MIXINLF
MIXINLR
MIXINRR
MIXINRF
OUTLF
OUTLR
OUTRF
OUTRR
OUTSW
SAOUT
26 25
24
23
MPX1
LEVEL
MP IN
MP OUT
QUAL
17 SM
DGND
SDA
SCL
SACLK
VDD
CREF
IC901 TL1451ACDB
REFERENCE
VOLTAGE
LATCH
TRIANGLE
OSCILLATOR
VERF.
+2.5V
+2.5V
+2.5V
+
–
U.V.L.O
–
+
+
+
–
–
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
PWM
COMPA-
RATOR2
RATOR2
OUTPUT2
OUTPUT1
GND
PWM
COMPA-
RATOR1
RATOR1
VERF
S
R
R
VERF
VERF
ERROR
AMP2
ERROR
AMP1
VREF/2
SHORT
CIRCUIT
PROTECTION
COMPARATOR
VCC
+
REFO
SCP
INA2
INB2
FB2
DTC2
OUT2
VCC
GND
OUT1
RT
INA1
INB1
FB1
DTC1
CT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
RESET
SWITCH
BATT
SWITCH
BUS ON
OUT
RESET
OUT
CLK
OUT
DATA
IN/OUT
BATT
VREF
GND
RESET IN
CLK IN
BATT
CHECK
CHECK
BUS ON
VCC
DATA IN
DATA OUT
IC802 MM1175XFF
IC307 BA6288FS
CONTROL
LOGIC
TSD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
NC
OUT1
M BATT
VCC
CLOSE
NC
NC
RNF
NC
OUT2
NC
VREF
OPEN
NC
NC
DRIVER
DRIVER
POWER
SAVE
1
7
8
3
4
5
2
6
1A
Y3
2A
GND
VDD
1Y
1Y
3A
2Y
IC303 TC7W14FU (TE12R)
SCOUT
MRO
MPTH
TEST
XO
XI
GND
DVDD
DAVN
SDA
VREF
FM DET
GND
AVDD
AFIN
SLI
PSWN
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
SMETER
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
IC601 SAA6588T/V2
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