Sony CDX-C90R Service Manual ▷ View online
– 65 –
3rd order
NOISE
SHAPER
S / P
TIMING
CIRCUIT
CLOCK
GENERATOR
DATA SELECT
DATA SELECT
P/S CONVERT
&
D/F-CLK GEN.
4BIT DATA
BITSTREAM
"0" DETECT
MUTE
CIRCUIT
OR
3rd order
NOISE
SHAPER
L . I . P.
ATT
x 0.75
L . I . P.
ATT
x 0.75
DITHER
OVERFLOW DETECTOR
FIR 4
MODE
INAF
OVFLAG
MUTER
MUTEL
MTPOL
DRPOL
MODE
NC
DFDTOR
DFLRCKO
TEST4
TEST3
VSS
IF SELD
IF SELC
NC
SBCKI
SDATAR
SDATAL
NC
DFDTOL
DFBCKO
DFDTEN
TEST1
TEST2
VSS
PLMG2
VDD
NSDOL4
NSDOL3
NSDOL2
NSDOL1
NC
NC
VDD
VDD
NC
64FSI
NSDOR1
NSDOR2
NSDOR3
NSDOR4
MCKIN
VDD
PLMG1
NRGCLR
SYSM
LATCH
SHIFT
ATT
INIT
LRCKI
DATAI
BCKI
VSS
VSS
NC
INVO2
INVO1
INVI
NC
128FSO
CKVDD
DINIT
52
53
54
55
56
57
58
59
60
61
62
63
64
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
32
31
30
29
28
27
26
25
24
23
22
21
20
FIR 2
FIR 1
FIR 3
ATT
IIR
OVERFLOW DETECTOR
FIR 4
FIR 2
FIR 1
FIR 3
ATT
IIR
POLALITY
2
+
–
+
–
–
MUX
MUX
1
2
2
3
4
5
5
6
7
8
9
10
16
15
14
13
12
11
AINL
AGNDL
AOUTL
VA–
VA+
AOUTR
AGNDR
AINR
8
8
8
8
8
16
ZCEN
CS
SDATAI
VD+
DGND
SCLK
SDATAO
MUTE
CONTROL
REGISTER
SERIAL
PARALLEL
REGISTER
IC1 CXD8679Q (MAIN BOARD)
IC103, 104 CS3310-KSR
IC3, 4 PCM1702U-J (MAIN BOARD)
BALANCED
CURRENT
SEGMENT
SEGMENT
DAC A
BALANCED
CURRENT
SEGMENT
SEGMENT
DAC B
BY-POLAR
OFFSET
CIRCUIT
REFERENCE
&
SERVO CIRCUIT
INPUT
INTERFACE
&
SINE CONVERTER
CIRCUIT
1
DATA
2
CLOCK
3
NC
4
+VDD
5
D.COM
6
–VDD
7
L.E
8
NC
9
NC
10
NC
20 –VCC
19 REF DC
18 NC
17 SERVO DC
16 A.COM
15 A.COM
14 I OUT
13 NC
12 BPO DC
11 +VCC
– 66 –
CONTROL
CIRCUIT
LOW VCC
DETECTOR CIRCUIT
WRITE/ERASE
PULSE TIMER
PULSE TIMER
ERASE CIRCUIT
RY/BY
BUFFER
CHIP ENABLE/
OUTPUT ENABLE
CIRCUIT
I/O
BUFFER
DATA
LATCH
ADDRESS
LATCH
Y
DECODER
8,388,608
CELL
MATRIX
Y GATE
WRITE CIRCUIT
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
DQ3
DQ11
VCC
DQ4
DQ12
DQ5
DQ13
DQ7
DQ14
DQ6
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
GND
CE
OE
1
2
3
4
4
5
6
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
A8
A9
A15
A14
A13
A13
A12
A11
NC
RY/BY
WE
A7
A6
A6
A4
A5
NC
NC
RESET
NC
47
48
45
46
A3
A2
A2
A1
A17
A10
X
DECODER
A16
BYTE
GND
DQ15/A–1
A0
STB
STB
A18
LOGIC
DOUT/ACK
ADDRESS/COUNTER
DATA WORD
Y DEC
SERIAL MUX
EEPROM
DATA REGISTER
X DEC
H. V. PUMP/TIMING
LOGIC
CONTROL
SERIAL
R/W
INC
LOAD
EN
LOGIC
STOP
START
3
6
2
5
1
7
8
4
DIN
DOUT
VCC
TEST
SCL
SDA
NC
NC
NC
GND
37
GAIN12
38
GAIN11
39
IN14
40
IN13
41
IN12
42
IN11
INPUT SW
36
GAIN134
LOUD
VOLUME
8dB STEP
VOLUME
1dB STEP
TONE
FADER
35
LDLC1
34
LDHC1
33
INAO1
32
VRIN1
31
VOUT1
30
TIN1
29
TCLC1
28
TCLC11
27
TCLC12
26
TCO1
25
FDIN1
24 FNTO1
23 REO1
VCTBUFF
VCTBUFF
VCTBUFF
LATCH
CONTROL
LATCH
1
GAIN234
LOUD
VOLUME
8dB STEP
VOLUME
1dB STEP
TONE
FADER
2
LDLC2
3
LDHC2
4
INAO2
5
VRIN2
6
VOUT2
7
TIN2
8
TCLC2
9
TCLC21
10
TCLC22
11
TCO2
12
FDIN2
14 REO2
13 FNTO2
VCTBUFF
VCTBUFF
VCTBUFF
SHIFT
REGISTER
ZCDET
43
IN21
44
IN22
45
IN23
46
IN24
47
GAIN21
48
GAIN22
INPUT SW
18 VCC
17 VCT
16 DATA
15 TIMER
22 CE
21 CLK
20 DGND
19 GND
45k
45k
IC102 CXA1946BR
IC302 BA8270F-E2
IC303 AT24C16N-10SI-TR
IC503 MBM29F800BA-70PFTN97
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
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
– 67 –
PHASE
DET
PRESCALER
MAIN
COUNT
IF COUNT
CTL
20BIT COUNT
SHIFT REGISTER LATCH
REFERENCE
DIVIDER
I/O
CTL
1
2
4
5
6
7
9
10
20
18
17
16
15
14
13
12
11
11
19
XIN
CE
CK
DA
CD
P0
P1
P3
XOUT
VSS
PD
VDD
FMIN
AMIN
P2
IFIN
SD
P4
P4
16
NOISE
AMP
AF AGC
DET
FILTER
AMP
NOISE
DET
SOM1
SOM2
IF AGC
DET
DET
AGC
REG
NOISE AGC
DET
2ND IF
AMP
NFB
GATE
NFB
AMP
SUB
GATE
MAIN
GATE
GATE
BUFFER
PHASE
SHIFTER
NFB
GATE
NFB
AMP
SUB
GATE
MAIN
GATE
GATE
BUFFER
PHASE
SHIFTER
24 23 22 21 20
19
18
17
1
2
3
4
5
6
7
8
9
10
12
11
15
14 13
(CH2)
(CH1)
IC721 BU2624FV-E2
IC600 BA6285FP-E2
IC851 TA2051FN(EL)
1
NC
NC
NC
NC
2
3
4
5
OUT1
RNF
7
GND
8
9
10
11
12
OUT2
NC
NC
NC
NC
NC
NC
NC
NC
VREF
IN1
GND
IN2
VCC
M.BAT
T
NC
NC
DRIVER
DRIVER
VREF
6
24
23
22
21
20
18
17
16
15
14
13
19
CONTROL
8
7
6
5
4
3
2
1
VDD
CONT1
OUT/IN2
IN/OUT2
IN/OUT1
OUT/IN1
CONT2
VSS
7
6
5
2
1
4
3
8
9
10
11
13
14
12
VSS
CONTROL IN
CONTROL IN
C
ONTROL IN
C
ONTROL IN
IN/OUT
IN/OUT
VDD
IN/OUT
IN/OUT
OUT IN
OUT IN
OUT IN
OUT IN
TIMING
GENERATOR
8,388,608DATA
REGISTER
COLUMN DECODER
COLUMN ADDRESS
COUNTER
ROW
DECODER
ADDRESS
MULTIPLEXER
REFRESH ADDRESS
COUNTER
ROW ADDRESS
COUNTER
ROW ADDRESS
REGISTER
REFRESH TIMER
I/O CONTROL
WRITE CLOCK
GENERATOR
2
3
4
5
11
12
13
10
9
1
25
24
23
22
18
17
16
15
14
26
TEST
RWCK
NC
TEST
TEST
TEST
TEST
TEST
DIN
NC
VSS
VCC
RS/A
RFSH
SAD
SAS
TAS
CS
WE
DOUT
NC
IC921 MSM6685JSDR1
IC761
µ
PD4066BG
IC722, 941 TCW66FU
– 68 –
1
2
3
4
42
41
40
39
38
37
36
32
31
30
29
35
34
33
5
6
7
8
9
10
12
13
14
11
15
16
17 18
19 20 21 22 23 24
25
26
27
28
43
44
45
47
48
49
50
52
53
54
55
56
51
46
MCU I/F
STATUS
REGISTER
TEST
CIRCUIT
12BIT
ADC
LPF
12BIT
DAC
+
-
+
-
SG
CIRCUIT
ADDRESS
CONTROLLER
ADPCM
ANALYZER/
SYNTHESIZER
TIMING
CONTROLLER
OSC
DATA
I/O
REGISTER
CONTROLLER
D0
D1
D2
D3
BUSY
RPM
VPM
TEST
TEST
TEST
TEST
TEST
MCUM
CE
ACON
CS3
CS2
CS1
SADX
SADY
SADY
PDWN
TEST
TEST
AGND
RSEL2
RSEL1
RSEL1
DGND
TEST
TEST
ADIN
FOUT
AOUT
FIN
AMON
DVDD
AVDD
SG
SGC
LOUT
LINE
MOUT
MIN
CE
WR
RD
RESET
NAR
RWCK
DVDD
XT
XT
WE
DROM
DI/0
CS4
TAS
SAS
MON
IC901 MSM6688GS-2K
IC951 SAA6588
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
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