Sony MDX-CA680 / MDX-CA680X Service Manual ▷ View online
21
MDX-CA680/CA680X
34
35
36
37
38
39
40
41
42
43
44
33 32 31
30
29
28
27
26
25
24 23
22
21
20
19
18
16
15
14
13
12
1 2
3 4 5 6
7 8 9 10
11
INPUT
MULTIPLEXER
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
SECOND SOURCE
SELECTOR
MAIN
PHONO
MAIN
CH0
AUX
AM
FM
IN-GAIN
+AUTO ZERO
+
LOUDNESS
SOFTMUTE
VOLUME
TREBLE
BASS
HP
LP
COMPANDER
VOICE
BANDPASS
MUTE
IN-GAIN
LOUDNESS
DIGITAL CONTROL
IIC-BUS
HIGH-CUT
S&H
25kHz
LP
DEMODULATOR
+STEREO ADJUST
+STEREO BLAND
MULTIPATH
DETECTOR
D/A
CONVERTER
PILOT
CANCELATION
PIL DET
PLL
AM/FM
NOISE BLANKER
BEEP
80kHz
LP
17
PULSE
FORMER
QUAL
SUPPLY
SECOND
MAIN
ACIN
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
SUBWOOFER
+PHASE
CONTROL
MIXER
OUTPUT
SELECTOR
FRONT
REAR
SW
VDD
SCL
SDA
GND
SM
QUAL
MPOUT
MPIN
LEVEL
MPX
AMIF
SEL
SER
FD1L+
FD1L
–
FD1R+
FD1R
–
FD2L+
FD2L
–
FD2R+
FD2R
–
AM
ACINLF
SWINR
SWINL
ACOUTR
ACOUTL
CREF
MUX
MD1
MD1G
MD2
MD2G
ACINLR
ACINRF
ACINRR
OUTLF
OUTLR
OUTRF
OUTRR
OUTSWL
OUTSWR
OUTSSL
OUTSSR
– MAIN Board –
IC401
TDA7402TR
22
MDX-CA680/CA680X
IC51
SAA6588T-118
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
IC505
BA8270F-E2
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
IC601
BA4908-V3
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
T
UNER8.7 ANT SW
TUNER5.6 SW
STB
VDD5.6V
AMP
VCC
ANT
COM8.7V
TUNER5.6V
TUNER8.7V
GND
MDX-CA680/CA680X
23
23
4-1.
BLOCK DIAGRAM – SERVO Section –
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
D
E
F
LD
PD
LASER DIODE
ILCC
RM
OPTICAL PICK-UP BLOCK
(KMS-241C)
AUTOMATIC
POWER CONTROL
Q302
APC
PD
APCREF
AT
AMP
B.P.F.
WBL
ADFM
ADIN
ADFG
ABCD
AMP
ABCD
FE
TE
SE
F0CNT
WBL
3T
EQ
COMMAND
SWDT
SCLK
XLAT
RFO
RF AGC
& EQ
AGCI
EQ
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC302
TEMP
MORFO
MORFI
3T
WBL
AUX
PEAK
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC303
OUT4F
OUT4R
M901
(SPINDLE)
OUT2F
OUT2R
M902
(SLED)
OUT1F
OUT1R
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
SPFD
SPRD
APCREF
SFDR
SRDR
FRDR
FFDR
TFDR
TRDR
PSB
PWM GENERATOR
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC301 (2/2)
RECP
ABCD
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CKRF
DTRF
1024FS OSC
IC304
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC301 (1/2)
2
4
6
8
18
16
14
12
11
13
15
17
9
7
5
3
SWDT
SCLK
XLAT
FOK
SHOCK
XBUSY
SLOCK
MD-SO
MD-CKO
MNT0
MNT1
MNT2
MNT3
MD-RST
SQSY
CC-XINT
SENS
MD-SI
EJECT
LOAD
RIN
FIN
OUT1
OUT2
LOADING
MOTOR DRIVE
IC305
M903
(LOADING)
D0 – D3
A00 – A09
OE
WE
RAS
CAS
D-RAM
IC307
MD MECHANISM CONTROLLER
IC501 (1/2)
DATA, BCK,
LRCK, 256FS
DATA
BCK
LRCK
ATT
•
SIGNAL PATH
: MD PLAY
11
9
8
4
1
2
48
47
46
40
33
38
37
36
32
35
34
26
28
18
17
16
20
12
30
29
5
6
7
10
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
92
91
88
89
86
85
81
80
83
13
67 65 66 75 74 63 64
82
27
25
21
23
12
10
14
15
19
18
29
30
3
4
16
M
M
M
AUTOMATIC
POWER
CONTROL
DIGITAL SERVO
SIGNAL
PROCESS
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
PEAK HOLD
Q301
10
LEVEL SHIFT
IC502 (2/2)
62
55
52
54
51
EXTAL
31
59
XTAL
32
26
64
27 28 29
45
XRST
1, 2, 24, 25
9 – 12, 14 – 18, 5
B
D
EJKT
C
A
7
6
5
4
1
7
6
M
MD-LAT
A-MUTE 67
63
11
56
+3.3V
TEMP
39
X501
10MHz
TH501
CHUCKING
DETECT
(LIMIT)
LIMIT-IN
E-SW
C-SW
57
EJT-OK
LOADING
DETECT
VREF
REFERENCE VOLTAGE
REGULATOR
Q303
LOAD+6V
PLL
FILTER
60
59
62
61
FILI
PCO
CLTV
FILO
100
EFMO
25
ADDT
22
DATAI
15
TX
53
54
57
ASYO
ASYI
RFI
ADIP
DEMODULATOR/
DECODER
78
ADFG
SPINDLE
SERVO
F0CNT
94 93
SPFD
SPRD
SUBCODE
PROCESSOR
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
DADT
INTERNAL BUS
CLOCK
GENERATOR
XBCK
LRCK
FS256
OSCI
OSCO
CPU
INTERFACE
MONITOR
CONTROL
CONTROL
12
DQSY
11
SQSY
14
XINT
9 8
5 6 7
SENS
SRDT
SWDT
SCLK
XLAT
MNT0
MNT1
MNT2
MNT3
49, 48, 50, 51
34 – 31, 36 – 40, 45
D0 – D3
A00 – A09
43
47
46
44
22
3
4
23
XOE
XWE
XRAS
XCAS
DIN1
79
16
17
COMPA-
RATOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
26
28
21
20
19
29
27
24
XBCKI
23
LRCKI
1 2 3 4
LEVEL SHIFT
IC502 (1/2)
256FS
X301
45MHz
MD-RST,
DEEMP
66
DEEMP
MD-RST
DEEMP
DEEMP
ON : When a disc loading start
and a disc eject completion
and a disc eject completion
ON : When completion
of a disc loading
of a disc loading
(Page 25)
(Page 25)
(Page 25)
(Page 25)
MDX-CA680/CA680X
24
24
4-2.
BLOCK DIAGRAM – TUNER Section –
1
2
ANT-FM
ANT-AM
2
VSM
14
S-METER
10
MPX
8
AM-DET
9
RDS-DET
FM/AM TUNER UNIT
TU10
SYSTEM CONTROLLER
IC501 (1/3)
17
SDA (EEPROM)
J10
(FM/AM ANTENNA IN)
5
VCC (8.5V)
TUNER +8.7V
16
VDD (5V)
TUNER +5.6V
11
VDD EEP (5V)
86
8
MPTH
27
DAVN
RDS DECODER
IC51
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X51
4.332MHz
4
8
5
OSCI
OSCO
SDA
SCL
DAVN
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16
18
19
MPX
CIN
4
5
SC
OUT
MULTI
PATH
DETECTOR
20
2
LVIN
MPTH
7
QUALITY
90
NS MASK
BAND-PASS
FILTER
IC20
Q22
NOISE DET
DISCHARGE
SWITCH
DATA
CLOCK
DATA, CLOCK
MPX
E
AM
F
S-METER
H
BU B+
EEP SIO
• SIGNAL PATH
: FM
: MW/LW
18
SCL (EEPROM)
87
EEP CKO
SDA (IICBUS)
SCL (IICBUS)
BUFFER
Q21
DATA
12 13
CLOCK
9
I
10
(AEP, UK)
(Page 25)
(Page 25)
(Page 25)
(Page 25)
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