Sony MDX-C8900R Service Manual ▷ View online
MDX-C8900R
– 29 –
– 30 –
4-1.
BLOCK DIAGRAM – SERVO Section –
SECTION 4
DIAGRAMS
F
C
B
D
A
E
I
J
J
I
B
A
C
D
D
E
F
DETECTOR
1
2
J
I
4
5
6
7
A
B
C
D
D
8
9
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-241B/J2N)
AUTOMATIC
POWER
CONTROL
Q302
11
10
APC
PD
LD/PD
AMP
12
APCREF
I-V
AMP
I-V
AMP
AT
AMP
B.P.F.
29
30
WBL
ADFM
ADIN
32
ADFG
ABCD
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
35
34
26
28
ABCD
FE
TE
SE
V-I
CONVERTER
20
F0CNT
WBL
3T
EQ
+3.3V
SERIAL/
PARALLEL
CONVERTER,
DECODER
COMMAND
17
16
18
SWDT
SCLK
XLAT
RF AMP
B.P.F.
46
RFO
40
RF AGC
& EQ
AGCI
EQ
38
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC302
TEMP
48 47
MORFO
MORFI
3T
PEAK &
BOTTOM
WBL
33
AUX
73 62
37
PEAK
36
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC303
6
8
OUT4F
OUT4R
M
M901
(SPINDLE)
27
25
OUT2F
OUT2R
M
M902
(SLED)
21
23
OUT1F
OUT1R
12
10
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
3
4
IN4R
IN4F
29
30
IN2F
IN2R
19
18
IN1F
IN1R
14
15
IN3F
IN3R
SPFD
SPRD
IC306
92
91
88
89
86
85
83
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
16
PSB
PWM GENERATOR
AUTOMATIC
POWER
CONTROL
DIGITAL
SERVO
SIGNAL
PROCESS
74
65
64
75
66
63
ANALOG MUX
A/D CONVERTER
AUTO
SEQUENCER
13
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC301 (2/2)
RECP
PEAK HOLD
Q301
+3.3V
ABCD
AUX1
AUX2
ABCD
FE
TE
SE
PEAK
BOTM
81
80
82
XLRF
CKRF
DTRF
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
PLL
FILTER
59
58
61
60
FILI
PCO
CLTV
FILO
100
EFMO
23
ADDT
IC301 (1/2)
15
TX
COMPA-
RATOR
51
52
55
ASYO
ASYI
RFI
ADIP
DEMODULATOR/
DECODER
78
ADFG
SPINDLE
SERVO
79
F0CNT
94 93
SPFD
SPRD
SUBCODE
PROCESSOR
24
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
22
21
DIN
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M BIT D-RAM
IC301 (1/2)
DADT
INTERNAL BUS
D-RAM
CLOCK
GENERATOR
25
26
27
512FS OSC
IC304
XBCK
LRCK
FS256
BCK
LRCK
FS256
X301
22.5792MHz
22.5792MHz
16
OSCI
17
OSCO
CPU
INTERFACE
MONITOR
CONTROL
CONTROL
10
XRST
12
DQSY
11
SQSY
14
XINT
9 8
5 6 7
SENS
SRDT
SWDT
SCLK
XLAT
LEVEL SHIFT
IC502
5
13
3 1
6
12
4 2
LEVEL SHIFT
IC503
1
2
3
4
MNT0
MNT1
MNT2
MNT3
13
1
3
5
12
2
4
6
FOK
SHOCK
XBUSY
SLOCK
SWDT
SCLK
XLAT
59
62
55
54 52
45 51 64
26 27 28 29
MNT0
MNT1
MNT2
MNT3
67
A-MUTE
21
LOCK
39
TEMP
MD-RST
SQSY
CC-XINT
SENS
MD-SI
MD-SO
MD-CKO
MD-LAT
7
6
EJECT
LOAD
5
4
05
1
7
M
RIN
FIN
OUT1 OUT2
LOADING
MOTOR DRIVE
IC305
M903
(LOADING)
63
C-SW
LOADING START/
EJECT END
EJECT END
E-SW
LIMIT-IN
(LIMIT)
LOADING
END
END
ON: When the disc loading start
and the disc eject completion.
ON: When completion of
the disc loading.
ON: When the optical pick-up is
inner position.
31
32
EXTAL
XTAL
X501
10MHz
TH501
66
DEEMP
47, 46, 48, 49
1, 2, 24, 25
D0 – D3
32 – 29, 34 – 38, 43
9 – 12, 14 – 18, 5
A0 – A9
D0 – D3
A00 – A09
41
22
45
3
44
4
42
23
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC307
(Page 33)
A
DADT, BCK, LRCK, FS256
(Page 33)
C
LOCK, MD-ATT
(Page 33)
B
EMPHASIS
MD MECHANISM CONTROLLER
IC501 (1/2)
• SIGNAL PATH
: MD PLAY
11
56
RESET, EMPHASIS
RESET
– 31 –
– 32 –
MDX-C8900R
4-2.
BLOCK DIAGRAM – TUNER Section –
1
4
2
FM-ANT
AM-ANT
6
VCO
21
FM-IF
11
AM-IF
5
9
16
13
6
1
5
20
4 2
25
26
27 28
18
7
VT
24
DOUT
DIN
CLK
XIN
XOUT
CE
PLLSI
PLLSO
PLLCKO
PLLCE
WIDE
AF SEEK
1
53
VSM
40
SD-IN
4
ST-MONO
5
TU-ATT
60
TIR-PLAY
FM OSC
15
AM OSC
IF IN
PD1
NARROW
13
SEEK
14
VDDA
7
VDDD
19
S-METER
S-METER
(RDS)
20
SD
22
18
16
12
4
1
3
2
5
13
15
ST/MONO
FM L-OUT
FM R-OUT
AM DET
23
FM DET
LOW-PASS
FILTER
Q6
TIME CONSTANT
SWITCH
IC7
X1
7.2MHz
FM/AM PLL
IC4
05
• SIGNAL PATH
: FM
: AM
MUTING
Q11
MUTING
Q9
BUFFER
Q4
MUTING
CONTROL SWITCH
Q15
R-CH
R-CH
D500
IC2 (1/2)
IC704
AM/TIR SIGNAL SELECT
SWITCH
IC2
AF ATTENUATOR
SWITCH
IC2
(2/2)
Q702
Q703
D7
D
(Page 33)
CSV
E
(Page 33)
FM
F
(Page 33)
AM/TIR
FM/AM TUNER UNIT
TU1
MASTER CONTROLLER
IC500 (1/4)
+
LO/DX
LO/DX
FM/AM SIGNAL
METER BUFFER
Q5
B+ SWITCH
Q701
SEEKOUT
CN1
ANT
8
FM +B
FM B+
FM B+
10
AM +B
AM B+
AM B+
Q16
TUNER B+
TUNER B+
TUNER B+
9
+B (FM/AM)
WIDE/NARROW
SWITCH
Q13
3
2
R-CH
Q14
WIDE/NARROW
SWITCH
FORCED WIDE/
NARROW
52
MTP
70
RDSSI
71
RDSCKO
75
DAVN
RDS DECODER
IC701
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X701
4.332MHz
4
8
5
OSCI
OSCO
10
9
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
TRAFFIC INFORMATION REPLAY
IC703
SERIAL REGISTER
IC702
L.P.F.
AM
ON
FOUT
AOUT
LIN
FIN
ADIN
A/D
CONVERTER
D/A
CONVERTER
CPU INTERFACE
STATUS
REGISTER
TIMING
CONTROLLER
OSC
DATA I/O
ADPCM
ANALYZER/
SYNTHESIZER
ADDRESS
CONTROLLER
REGISTER
CONTROLLER
CS
SAD
DIN
DOUT
SADX
CE
TIR CE
XTIR CE
TIR RD
TIR WR
TIR D0 –
TIR D3
DI/O
RESET
XT
D0 – D3
BUSY
X702
4.19MHz
1 – 4
82 – 85
97
TIR-CE
95
TIR-BUSY
100
TIR-RES
98 101 96
TIR-D0
–
TIR-D3
CS1
CS2
SAS
RWCK
WE
TAS
RD
WR
CE
PDWN
XT
TAS
SAS
WE
RWCK
RWCK
TIR-CE
TIR-WR
TIR-RD
99
TIR-PDOWN
FM RDS
S-METER
RV1
+
2
1
7
5
6
3
40
41
39
37
36
46
50
17
23
18
22
16
2
11
15
44
47
48
35
53
5
54
55
56
11
17
18
20
26
19
16
MDX-C8900R
– 33 –
– 34 –
4-3.
BLOCK DIAGRAM – MAIN Section –
DATA BUS
ADDRESS BUS
DATA BUS
ADDRESS BUS
104 LOCK
109 MD-ATT
67
VOLCKO/SUBCKO
66
VOLSO/SUBSO
68
SUBCE
64
VOLCE
20 CSV-SI
21 CSV-SO
23 CSV-CE
117 CSV-NAR
9
CSV-RST
22
36
38
37
35
39
CSV-CKO
CLK
DATA
SUBCE
VOLCE
62
SUB-SW0
D0 – D7
D0 – D7
D0 – D7
A0 – A18
A0 – A15
61
SUB-SW1
65
ATT
POWON
79
TEL-ATT
58
118
120
LED-ON
LOW-PASS
FILTER
IC100
05
• SIGNAL PATH
: MD PLAY
: FM
: AM
C
(Page 30)
LOCK,
MD-ATT
MD-ATT
H
(Page 38)
LED-ON
STB
I
(Page 37)
G
(Page 38)
RESET
CSV
D
(Page 31)
MASTER CONTROLLER
IC500 (2/4)
MIC AMP
IC905 (1/3)
BUFFER
IC905 (2/3)
BUFFER
IC904
B+ SWITCH
Q533, 534
BUFFER
IC905 (3/3)
NOISE
SHAPER
INPUT
INTERFACE
D/A
CONVERTER
MODE
CONTROL
CLK
CONTROL
DIGITAL FILTER,
D/A CONVERTER
IC101
CSV
IC901
FLASH
MEMORY
IC902
PROGRAM
ROM
IC903
12
9
VOUTL
VOUTR
DAC
P01
P03
P00
P02
P02
P04
20
19
XI1
X901
14.3MHz
XO1
R-CH
BATTERY OFF
MUTE DRIVER
Q400
MUTING
CONTROL SWITCH
Q401
MUTING
CONTROL SWITCH
Q402
RESET SWITCH ON
MUTING DRIVER
Q535
MUTING
CONTROL SWITCH
Q403
6
5
4
1
15
51
48
28
26
45
11
17 16
DATA
BCK
LRCK
XTI
RSTB
AN0
50 AN1
27 P14
A-1
A0
A1 – A19
A0 – A15
D0 – D7
D0 – D7
D0 – D7
45
32 P07
33 P06
DM1
DM0
BCK
DADT
LRCK
FS256
A
(Page 30)
DADT,
BCK,
LRCK,
FS256
BCK,
LRCK,
FS256
B
(Page 33)
E
(Page 32)
F
(Page 32)
EMPHASIS
DIGITAL
FILTER
RESET,
EMPHASIS
EMPHASIS
FM
AM/TIR
RESET
COM +8V
BATT B+
D406
D407
D402
D403
CN602 (2/2)
FRONT AUDIO OUT
(L)
(R)
CN601 (1/2)
REAR AUDIO OUT
(L)
(R)
CN601 (2/2)
SUB WOOFER OUT
(L)
(R)
MUTING
Q200
MUTING
Q300
MUTING
Q201
MUTING
Q301
FL+
1
11
14
9
7
OUT1+
OUT1–
21
23
OUT4+
OUT4–
IN1
IN4
12
5
3
OUT2+
OUT2–
IN2
15
22
17
19
OUT3+
OUT3–
IN3
MUTE
4
STBY
LEVEL SHIFT
Q509
CNP500 (1/2)
(POWER CONNECTOR)
POWER AMP
IC600
FL–
9
FR+
4
FR–
12
RL+
2
RL–
10
RR+
3
RR–
11
TEST MODE
15
TEL-ATT
13
MUTING
Q204
MUTING
Q305
MUTING
Q304
MUTING
Q205
AUX-IN-L
MD-IN-L
FM-IN-L
AM-IN-L
41
42
40
39
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
31
VR1
IN
IN
VOUT1
33
32
INAO1
(L)
(R)
R-CH
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC400 (1/2)
CN602 (1/2)
BUS
AUDIO IN
TESTIN
TONE
CONTROL
CIRCUIT
30
26
TIN1
TCO1
BUFFER
IC401
CENTER VOLTAGE
GENERATOR (FOR BIAS)
IC402
LINE
DRIVER
IC200
FADER
CONTROL
CIRCUIT
25
17
FDIN1
SHIFT
REGISTER &
LATCH
23
24
FNTO1
R-CH
R-CH
VCT
REO1
16 21 22
DATA
CLK
CE
CLK
DATA
VOLCE
R-CH
ELECTRICAL
VOLUME
IC400 (2/2)
COM +8V
BUFFER
IC404
49 VRSW
SUB CUT
SWITCH
Q206, 207
R-CH
D+5V
BACKUP +5V
R-CH
21
RST
VOLUME
CONTROL
CIRCUIT
20
17
INP1
BUFFER
16
VRIN1
INAO1
15
OUT1
ZC
DET
R-CH
ELECTRICAL VOLUME
(FOR SUBWOOFER)
IC403
SHIFT
REGISTER &
LATCH
8 9 7
DATA
CLK
CE
CLK
DATA
SUBCE
MUTING
Q202
MUTING
Q203
29, 31, 33, 35, 38, 40, 42, 44
64 –
5
7
25 – 18, 8 – 1, 48, 17, 16
21 – 23, 25 – 29
OE
CE
WE
32
6
10
OE
A16
A17
RESET
WRD
42
RDC
P15
44
RDD
A0 – A15
A16
IC908 (1/2)
IC908 (2/2)
A17
A0 – A15
18 – 11, 8 – 1
P10 – P13
31 – 28
A16 – A19
12
CNJ501
MIC
7
2
1
3
5
6
IC906
4
1
2
IC907
4
1
2
20 – 13, 3, 2, 31
1, 12, 4, 5, 11
26
– 35 –
– 36 –
MDX-C8900R
4-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
Q903
LSW900, 901, 903,
LSW904, 906 – 910,
LSW912 – 918
LED900 – 907,
LSW902, 905, 911
05
35
RE-IN1
KEYACK
AMBER
76
12
BEEP
15
TIR-IND
31
LCDANG
41
2
LCD-DATA
18
LCD-CLK
17
21
20
LCD-CE
OSC-OUT
OSC-IN
19
KEYIN1
RE-IN0
36 37
KEYIN0
X1
X0
X1A
X0A
RC-IN0
RC-IN1
46
47
48 72
93
92
73
LCD SO
13
LCD CKO
14 16
LCD-INH
14
LCD CE
32
74
KEY ACTIVE
SWITCH
Q523
BUZZER
DRIVE
Q526
OSC
D503
VOL+
VOL–
D505
Q902
VLC0 – VLC5
GREEN
1
LED DRIVE
Q900
LED DRIVE
Q529
CONTRAST
SWITCHING
Q503, 504
AD-ON
80
NOSESW
DOORSW
J
(Page 38)
DOOR SW
LSW701, 900 – 918,
S900
SW503
(NOSE DETECT)
ROTARY
ENCODER
RE900
BACKUP +5V
CN900
FRONT PANEL SIDE
BZ501
(BUZZER)
CN500
MAIN BODY SIDE
P-ON +10V
LCD +10V
LCD +10V
11
10
LED DRIVE
Q901
11 – 6
X500
3.68MHz
X501
32kHz
R952
MASTER CONTROLLER
IC500 (3/4)
LIQUID CRYSTAL DISPLAY DRIVER
IC900
26 – 90
SEG101 – SEG165
100 – 93
COM100 – COM107
LIQUID CRYSTAL DISPLAY
LCD900
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
RE900
CNJ500
REMOTE IN
LED701
TIR
LCDINH
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