Sony CDX-CA900 / CDX-CA900X Service Manual ▷ View online
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33
CDX-CA900/CA900X
C902
C905
IC902
IC901
CN901
D900
D901
D910
D920
R933
R934
R981
R982
R988
R901
R904
R990
R919
D902
C900
C901
C909
FB901
C911
FB902
C904
C910
C906
R918
C912
R913
R912
R910
C990
R911
R984
R985
R986
R986
C993
C992
C991
R991
R992
R993
R993
R994
C983
R987
R983
C986
C982
D972
D974
R975
R973
R971
LED914
LED915
R976
LED912
LED913
R974
LED910
LED911
R972
R921
R922
R923
R924
R979
R980
C908
R903
R902
C907
R914
R915
R917
R916
X910
LSW921(2/2)
LSW922(2/2)
LSW923(2/2)
LSW924(2/2)
LSW922(1/2)
LSW923(1/2)
LSW924(1/2)
LSW921(1/2)
Q901
LCD901
LED900
IC903
3-15. SCHEMATIC DIAGRAM — KEY SECTION — • Refer to page 18 for Waveform.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 28)
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34
CDX-CA900/CA900X
IC1 µPD63711GC-8EU
• IC BLOCK DIAGRAMS
IC201 SAA6588T
IC2 BA5810FP-E2
76
75
AGCI
AGCO
74
RFI
73
C3T
72
ASY
71
EFM
70
AVDD
69
7E DAC3
68
7D DAC2
67
7C DAC1
66
7F DAC0
65
MD
64
SD
63
TD
62
FD
60
ATEST
59
TEST1
58
TEST0
57
DGND
56
TSTB
55
TSCK
54
TSI
53
TSO
52
PACK
51
DVDD
61
AGND
1
DGND
2
RFOK
3
RST
4
A0
5
STB
6
SCK
7
SO
8
SI
9
XTALEN
10
DVDD
11
DAVDD
12
ROUT
13
DAGND
REGC
16
LOUT
17
DAVDD
18
R+
19
R–
20
L+
21
L–
22
XVDD
23
XTAL
24
XTAL
25
XGND
15
14
DAGND
77
RFO
78
EQ2
79
EQ1
80
RF-
81
AGND
82
A
83
C
84
B
85
D
86
F
87
E
88
AVDD
89
REFOUT
90
FE-
91
FEO
92
TE-
93
TEO
94
TE2
95
AGND
TEC
96
PD 97
98
LD
PN 99
100
AVDD
50 C2D3
49 C2D2
48 C2D1
47 C1D2
46 C1D1
45 DGND
44 PLCK
43 MIRR/WFCK
42 RFCK
41 LOCK
40 DVDD
39 TSOI
38 C16M
37 DGND
36 TX
35 HOLD/WDCK
34 LRCK
33 LRCKIN
32 SCKO
31 SCKIN
30 DOUT
29
28
DIN
FLAG
27 EMPH
26 DVDD
EFM
COMPARATOR
EFM
EFM
DEFECT
FOK
A3T
MIRR
FEO
TEO
TEOFS
FEOFS
RF
AMP BLOCK
SWITCH
MICROCOMPUTER INTERFACE
SCF
OSC
FOCUS
REGISTER
TRACKING
REGISTER
OCTUPLED
OVERSAMPLING DIGITAL FILTER
NOISE SHAVER
OUTPUT BUFFER
NOISE SHAVER
OUTPUT BUFFER
DE-EMPHASIS CIRCUIT
D/A
INTERFACE
CIRCUIT
OUTPUT PROCESSOR
DIGITAL
AUDIO
INTERFACE
DIGITAL PLL
TIMING GENERATOR
EFM DEMODULATOR
ERROR
CORRECTION
PROCESSOR
MICROCOMPUTER INTERFACE
CD-TEXT DECODER
SUB-CODE PROCESSOR
16K
SRAM
D/A
AUTO GAIN
CONTROLLER
FD/TD/SD/MD
CONTROLLER
CONTROLLER
ADDER
SVDRAM
MULTIPLIER
SVCRAM
SVROM
ROM
DECODER
CLV
PROCESSOR
DEFECT
COMPARATOR
RFENV
MIRENV
A/D CONVERTER
MEMORY
PROCESSOR
COMPARATOR
1
FWD
+
–
+
–
+
–
2
REV
LOADING PRE
FWD REV
3
LDCONT
6
IN2
7
PREVCC
8
POWVCC
VOL–
VOL+
IN1
4
PS
+
–
LEVEL
SHIFT
+
–
+
–
LEVEL
SHIFT
LEVEL
SHIFT
+
–
POWER
SAVE
CH1-4
MUTE
X3
9
10
11
VO2–
12
VO2+
13
VO1–
14
VO1+
5
BIAS
OPIN4+
OPIN4–
OPIN3–
OPOUT3
MUTE
POWVCC
GND
OPIN3+
OPOUT4
VO3–
VO3+
VO4–
VO4+
7.5k
7.5k
16k
16k
7.5k
7.5k
16k
16k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
+
–
+
–
+
–
LEVEL
SHIFT
+
–
+
–
+
–
10k
10k
10k
10k
+
–
28
27
26
23
22
21
25
20
19
18
17
16
15
24
POWVCC34
(CH3,CH4)
PREVCC
(PRE.LOADING)
POWVCC12
(CH1.CH2)
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
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
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
35
CDX-CA900/CA900X
IC301 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
TAPE-RCH
AUX-RCH
PD-
AUX-LCH
PAUSE
PHONE
TIM
NAVI
AM/MPX2
AMIF
CMPX
TAPE-LCH
MD-LCH
MD-RCH
CD-LCH
CD-RCH
CREF
AC OUT.LCH
SWACOUT
ACOUT.RCH
ACIN-RCH
SWIN
ACINL
MIXINFL
MIXINRL
MIXINRR
MIXINFR
OUTFL
OUTRL
OUTFR
OUTRR
OUTSW
SAOUT
26 25
24
23
MPX1
LEVEL
(VSM)
(VSM)
MP IN
MP OUT
QUAL
17 EXA-ATT
GND
SDA
SCL
SACLK
VDD
CREF
36
CDX-CA900/CA900X
IC601 BA8270F
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
GND
VCC
RST
BUS ON
BUS ON
CLK IN
B/U-C
DATA IN
DATA OUT
DATA
I/O
I/O
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