Sony CDX-M630 Service Manual page 65

• IC BLOCK DIAGRAMS
IC305 TDA7406
33 32 31 30 29 28 27 26 25 24
MIXER
SOFT STEP SOFT STEP SOFT STEP
FADER FADER FADER
SUB
WOOFER
FILTER
OUTPUT SELECTOR
34
SWIN
ACINR 35
ACOUTR 36
37
SWACOUT
38
AC OUTL
HIGH PASS
7BAND
EQUALIZER
CREF 39
SOFT STEP
VOLUME
SOFT MUTE
LOUDNESS
SPECTRUM
ANALIZER
IN GAIN
+ AUTO
ZERO
MAIN SOURCE MIXING
SELECTOR SELECTOR
CDL 40
CDR 41
MDR 42
INPUT MULTIPLEXER
MDL 43
XR L 44
1 2 3 4 5 6 7 8
23
MONO
FADER
CREF
SUPPLY
II
C-BUS
QUAL.
HIGH OUT
DIGITAL
CONTROL
PULSE
S & H
FORMER
25kHz
LP
AM/FM
NOISE
BLANKER
MULTI
DEMODULATOR
PATH
+STEREO ADJUST
DETECTOR
+STEREO BLEND
BEEP
PILOT
CANCELLATION
PIL, DET
PAUSE
PLL
86kHz
LP
STD
IN GAIN
9 10 11
IC601 SAA6588T/V2
MRO 1
MPTH 2
TEST
TEST
3
CONTROL RDS/RDBS
DEMODULATOR
XO 4
22
VDD
XI 5
RDS/RDBS
21 SACLK
DECODER
GND 6
20 SCL
DVDD
7
19
SDA
DAVN
8
18
DGND
INTERFACE
REGISTER
17 SM
16 QUAL
SDA 9
SCL 10
A/D
15 MP OUT
14
MP IN
IC901 TL1451ACDB
13 LEVEL
16 15
VERF.
+2.5V
VCC
REFERENCE
VOLTAGE
12 MPX1
+2.5V
SHORT
CIRCUIT
PROTECTION
COMPARATOR
+
+
–
VREF/2
TRIANGLE
OSCILLATOR
1 2
3 3
MULTI
PATH 20 SMETER
DETECTOR
19 CIN
18 SCOUT
57kHz
8th ORDER
BAND-PASS FILTER
VREF
17
4
16 FM DET
5
15 GND
4
POWER SUPPLY
& RESET
AVDD
14
13 AFIN
PAUSE
DETECTOR
12 SLI
11 PSWN
14 13 12 11 10 9
–
+
ERROR PWM
AMP2 COMPA-
RATOR2
VERF
OUTPUT2
VERF VERF
OUTPUT1
S R R
LATCH U.V.L.O
PWM
COMPA-
RATOR1
+
–
ERROR GND
AMP1
3 4 5 6 7 8
CDX-M630
IC802 MM1175XFF
BUS ON
VCC
1 14
OUT
RESET
RESET
RESET IN
2 13
OUT SWITCH
BATT
3
BATT
12 BUS ON
SWITCH
CLK
4 11
CLK IN
OUT
BATT
VREF
5 10
CHECK
DATA
6 9 DATA IN
IN/OUT
GND 7 8 DATA OUT
IC307 BA6288FS
GND 1 16 RNF
NC 2 DRIVER 15 NC
DRIVER
OUT1 OUT2
3 14
M BATT 4 13 NC
POWER
VCC 5 12 VREF
SAVE
CLOSE 6 11 OPEN
NC 7 10 NC
NC 8 TSD 9 NC
IC303 TC7W14FU (TE12R)
8 VDD
1A 1 7 1Y
Y3 2 6 3A
2Y
2A 3 5
GND 4