Sony MDX-C6400R, MDX-C6500R, MDX-C6500RX Service Manual
MDX-C6400R/C6500R/C6500RX
SERVICE MANUAL
Ver 1.1 2001.05
Photo: MDX-C6500R
SPECIFICATIONS
AEP Model
MDX-C6400R/C6500R/C6500RX
UK Model
MDX-C6500R/C6500RX
Model Name Using Similar Mechanism NEW
Base Mechanism Type MG-164NZ-138
Optical Pick-up Name KMS-241C/J1NP
MD player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range 87.5 – 108.0 MHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),
Harmonic distortion at 1 kHz
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
MW/LW
Tuning range MW: 531 – 1,602 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW: 30 µV
72 dB (mono)
0.6 % (stereo),
0.3 % (mono)
LW: 153 – 279 kHz
LW: 40 µV
Power amplifier section
Outputs Speaker outputs
Speaker impedance 4 – 8 ohms
Maximum power output 50 W × 4 (at 4 ohms)
(sure seal connectors)
General
Outputs Audio outputs*
Tone controls Bass ±9 dB at 100 Hz
Power requirements 12 V DC car battery
Dimensions Approx. 178 × 50 × 183 mm
Mounting dimensions Approx. 182 × 53 × 162 mm
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and
*1Equipped with front and rear outputs:
MDX-C6500RX/C6500R only
Equipped with rear outputs: MDX-C6400R
2
MDX-C6500RX/C6500R only
*
U.S. and foreign patents licensed from Dolby
laboratories Licensing Corporation.
Design and specifications are subject to change
without notice.
Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
2
lead*
Treble ±9 dB at 10 kHz
(negative ground)
(w/h/d)
(w/h/d)
connections (1 set)
Front panel case (1)
1
9-870-051-12 Sony Corporation
2001E0500-1 e Vehicle Company
C 2001.5 Shinagawa Tec Service Manual Production Group
FM/MW/LW MINIDISC PLAYER
4-1. BLOCK DIAGRAM – SERVO Section –
SECTION 4
DIAGRAMS
100
EFMO
MDX-C6400R/C6500R/C6500RX
15
TX
IC301 (1/2)
ADDT
• SIGNAL PATH
23
: MD PLAY
OPTICAL PICK-UP BLOCK
05
F
C B
I J
D A
E
DETECTOR
LASER DIODE
LDPD
(KMS-241C)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
ILCC
PD
M901
(SPINDLE)
M902
(SLED)
FCS+
FCS–
TRK+
TRK–
FILI
59
PCO
58
61
FILTER
60
RF AMP,
FOCUS/TRACKING ERROR AMP
48 47
MORFI
MORFO
IC303
I
1
RF AMP
J
2
A
4
B
5
I-V
C
AMP
6
D
7
E
8
I-V
F
AMP
9
APC
PD
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
LD/PD
16PSB
3
4
29
30
19
18
14
15
11
10
AMP
SPFD
SPRD
RFO
B.P.F.
AT
AMP
12
46
3T
APCREF
IC306
WBL
B.P.F.
ABCD
AMP
WBL3TEQ
V-I
CONVERTER
F0CNT
20
APCREF
83
SFDR
92
SRDR
91
FFDR
88
FRDR
89
TFDR
86
TRDR
85
TEMP
ADFM
29 30
FOCUS
ERROR AMP
TRACKING
ERROR AMP
+3.3V
PWM GENERATOR
40
I
J
B
A
C
D
E
F
AUTOMATIC
POWER
CONTROL
Q302
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
6
27
25
21
23
12
10
8
OUT4F
OUT4R
OUT2F
OUT2R
OUT1F
OUT1R
OUT3F
OUT3R
M
M
IC302
AGCI
RF AGC
& EQ
EQ
WBL
PEAK &
BOTTOM
ADIN
COMMAND
SERIAL/
PARALLEL
CONVERTER,
DECODER
XLAT
SCLK
SWDT
1716 18
PEAK HOLD
Q301
+3.3V
13
RECP
AUTOMATIC
POWER
CONTROL
DIGITAL
SERVO
SIGNAL
PROCESS
DIGITAL SERVO
SIGNAL PROCESSOR
IC301 (2/2)
RF
AUX
PEAK
BOTM
ADFG
ABCD
FE
TE
SE
ABCD
AUX1
38
33
37
36
32
35
34
26
28
7465647566 63
FE
TE
AUX2
ABCD
ANALOG MUX
A/D CONVERTER
FROM CPU
INTERFACE
AUTO
SEQUENCER
73 62
SE
PEAK
XLRF
CKRF
DTRF
51
52
55
78
79
BOTM
CLTV
FILO
ASYO
ASYI
COMPA-
RFI
RATOR
ADIP
ADFG
DEMODULATOR/
DECODER
F0CNT
X501
10MHz
80
81
82
PLL
EFM/ACIRC
ENCODER/DECODER
SUBCODE
PROCESSOR
SPINDLE
SERVO
SPFD
SPRD
DQSY11SQSY14XINT
XRST
94 93
10
12
59 62 55 54 52 45 51 64 26 27 28 29
MD-RST
31
EXTAL
XTAL
32
7 6
LOADING
MOTOR DRIVE
IC305
M903
(LOADING)
5 4
RIN FIN
OUT1 OUT2
1 7
SHOCK PROOF
MEMORY CONTROLLER
51331
LEVEL SHIFT
IC502
61242
SQSY
CC-XINT
EJECT
LOAD
M
ATRAC
CPU
INTERFACE
SENS
SRDT
SWDT
9 8 5 6 7
SWDT
SENS
MD-SI
MD-SO
MD MECHANISM CONTROLLER
ON: When the disc loading start
and the disc eject completion.
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
ENCODER/DECODER
INTERFACE
D-RAM
INTERNAL BUS
MONITOR
CONTROL
SCLK
XLAT
MNT0
1 2 3 4
13
LEVEL SHIFT
IC503
12
FOK
SCLK
XLAT
MNT0
MD-LAT
MD-CKO
IC501 (1/2)
C-SW
63
LOADING START/
EJECT END
DIN
DOUT
DADT
MNT1
MNT2
MNT3
135
246
SHOCK
XBUSY
SLOCK
MNT1
MNT2
MNT3
ON: When completion of
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M BIT D-RAM
21
22
24
LOADING
END
the disc loading.
IC301 (1/2)
BCK
LRCK
FS256
2526 27
LRCK
XBCK
FS256
CLOCK
GENERATOR
RESET
TH501
39
TEMP
E-SW
11 56
OSCI
OSCO
XOE
XWE
XRAS
XCAS
EMPHASIS
66
DEEMP
(LIMIT)
ON: When the optical pick-up is
inner position.
A-MUTE
16
17
D0 – D3A00 – A09
47, 46, 48, 49
32 – 29, 34 – 38, 43
41 22
45 3
44 4
42 23
LOCK
21
67
LIMIT-IN
DADT, BCK, LRCK, FS256
512FS OSC
IC304
D0 – D3
1, 2, 24, 25
A0 – A9
9 – 12, 14 – 18, 5
OE
WE
RAS
CAS
D-RAM
IC307
RESET, EMPHASIS
LOCK
MD-ATT
(Page 19)
A
X301
22.5792MHz
(Page 19)
B
C
(Page 19)
D
(Page 19)
1717
MDX-C6400R/C6500R/C6500RX
4-2. BLOCK DIAGRAM – TUNER Section –
J1
(FM/AM ANTENNA)
FM/AM TUNER UNIT
TU1
ANT-FM
2
ANT-AM
1
SDA (E2PROM)
SCL (E2PROM)
17
18
FM-AGC
4
S-METER
14
RDS-DET
9
11
5
VCC (8.5V)
VDD E2P (5V)
16
VDD (5V)
BU B+
TUNER +8.7V
TUNER +5.6V
SDA (12CBUS)
SCL (12CBUS)
12 13
DATA
CLOCK
19
IF-AM
MPX
AM-DET
10
MUTING
Q111
8
MUTING
Q121
MUTING
CONTROL SWITCH
D131
Q131
MPX
AM
IF-AM
DATA, CLOCK
E
F
G
I
(Page 19)
(Page 19)
(Page 19)
(Page 19)
DATA
CLOCK
9
10
E2P SIO
51
E2P CKO
FMAGC
RDS DECODER
IC51
PATH
OUT
SC
MPTH
CIN
19
MPTH
CLOCKED
COMPARATOR
OSCILLATOR
& CLOCK
OSCI
OSCO
4
5
X51
4.332MHz
MASTER CONTROLLER
18
2
52
MPX
LVIN
57 kHz
BAND-PASS
FILTER
MULTI
DETECTOR
16
20
53
VSM
IC501 (1/3)
SIGNAL
QUALITY
DECODER
RDS/RDBS
DEMODULATOR
& DECODER
DAVN
8
64
DAVN
5
4
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
SDA
SCL
9
10
BUFFER
Q1
BAND-PASS
FILTER
IC90
Q90
NOISE DET
DISCHARGE
SWITCH
50
QUALITY
32
NS MASK
S-METER
56
TUNATT
H
(Page 19)
• SIGNAL PATH
: FM
05
: MW/LW
1818
4-3. BLOCK DIAGRAM – MAIN Section –
MDX-C6400R/C6500R/C6500RX
(Page 17)
(Page 17)
(Page 18)
(Page 18)
(Page 18)
(Page 18)
(Page 18)
(Page 17)
CNJ151 (1/2)
DM0
NOISE
AUDIO IN
SHAPER
DADT,
BCK,
LRCK,
FS256
A
LRCK
FS256
RESET,
EMPHASIS
B
AM
F
IF-AM
G
MPX
E
I
S-METER
H
LOCK
C
RESET
EMPHASIS
DATA, CLOCK
DATADADT
5
BCKBCK
6
4
1
15
84
LRCK
XTI
RSTB
LOCKIN
INPUT
CLK
CONTROL
INTERFACE
CONTROL
FILTER
DIGITAL
MODE
DM1
17 16
(L)
BUS
(R)
VOUTL
D/A
VOUTR
COMVERTER
DIGITAL FILTER,
D/A CONVERTER
IC101
R-CH
12
9
R-CH
MASTER CONTROLLER
IC501 (2/3)
INPUT SELECT,
ELECTRICAL VOLUME, FM MPX
3
1
11
12
13
DATA
CLOCK
FD1L
SEL
AM
AMIF
MPX
IC151
BLANKER
L.P.F.
DIGITAL
CONTROL
IIC BUS
SDA
20
70 71
I2C SIO
INPUT
MULTIPLEXER
AM/FM
NOISE
SCL
21
I2C CKO
PLL
LOUDNESS/
VOLUME
PILOT
CANCELATION
PILOT
DET
SOFT
MUTE
DEMODULATOR
+STEREO ADJUST
+STEREO BLEND
SM
18
57
VOLATT
TONE
CONTROL
LOUDNESSMUTE
MONO
FADER
OUTPUT
SELECTOR
L.P.F. S & H HIGH-CUT
D/A
CONVERTER
LEVEL
14
MIXER
OUTLF
OUTLR
R-CH
CNJ151 (2/2)
30
29
R-CH
R-CH
D621
BEEP
AMPATT
AMPON
MUTING
Q171
MUTING
Q271
MUTING
Q181
MUTING
Q281
POWER AMP
IC611
12
FL-IN
14
FR-IN
RL-IN
11
15
RR-IN
16
60
59
16
AUX IN
MUTE
22
4
STNBY
(L)
(R)
(L)
(R)
FL+
FL–
FR+
FR–
RL+
RL–
RR+
RR–
AUDIO OUT
FRONT
(C6500R, C6500RX)
AUDIO OUT
(C6500R, C6500RX)
AUDIO OUT
(C6400R)
(POWER CONNECTOR)
5
3
21
23
9
7
17
19
REAR
CN601 (1/2)
1
9
4
12
2
10
3
11
FRONT L (+)
FRONT L (–)
FRONT R (+)
FRONT R (–)
REAR L (+)
REAR L (–)
REAR R (+)
REAR R (–)
REMOTE IN
(Page 17)
05
J501
RCIN1
KEYIN0
RCIN0
48 46 47 36 37 76 6785 12 587473929315141335 79 81
LSW901 – 917,
S901 – 904
D653
KEYIN1
D501
LSW810,
REIN0
REIN1
ROTARY
ENCODER
RE901
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
KEYACK
KEY ACTIVE
SWITCH
Q651, 652
U-COM +5V
AD-ON
SW504
(NOSE DETECT)
NOSESW
DOORSW
14
MAIN BODY SIDE
1
FRONT PANEL SIDE
CN500
CN901
OSC
C953, R957
LCDSO
LCDCKO
LCDCE
X1
X0
X1A
X501
3.68MHz
6263
64
DI
CL
SE
LIQUID CRYSTAL
OSC
DISPLAY DRIVER
–
S51 COM1
S04
–
4
51
IC901
–
COM4
–
52
55
60
X502
32.768kHz
X0A
D502
ATT
BACK-UP B+
TEST IN
TELATT
D622
MUTING
CONTROL SWITCH
Q622
BATTERY OFF
MUTE DRIVER
Q621
LEVEL SHIFT
Q571
(C6500R, C6500RX)
D571
• SIGNAL PATH
: MD PLAY
15
TEST
13
TEL-ATT
: FM
LCD901
LIQUID CRYSTAL DISPLAY
MD-ATT
D
D302
: MW/LW
: BUS AUDIO IN
1919
MDX-C6400R/C6500R/C6500RX
4-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
CN701
BUS CONTROL IN
(FOR SONY BUS)
SIRCS
RESET
DATA
CLK
BUS ON
BATT
BACK-UP B+
3
2
5
4
6
7
BUS ON SWITCH
Q705
TH701
D708
BU B+
2
6
4
1
3
D702
D701
SIRCS BUFFER
Q704
RESET SIGNAL
GENERATOR
IC652
SONY BUS INTERFACE
IC701
RST
RESET
SWITCH
DATA
CLK
BUS ON
OUT
BATT
BATTERY
DETECT
Q701
BUS ON
SWITCH
BATTERY
SWITCH
DATA IN
DATA OUT
CLK IN
RST
BUS
ON IN
BU IN
REMOTE CONTROL
RECEIVER
IC951
SW503
RESET
13
9
8
11
12
10
D301
MASTER CONTROLLER
IC501 (3/3)
24
SIRCS
RSTX
90
86
HSTX
11
SYSRST
UNISO
18
17
UNISI
19
UNICKO
20
UNICKI
3
BUSON
BUIN
77
PW ON
TUNON
ILLON
ACC IN
CN601 (2/2)
BACK-UP B+
POWER AMP
(IC611) B+
FU601
(POWER CONNECTOR)
6
ANT-R
AMP-R
5
16
+B
7
ACC
D673
D674
6
AMP+B
8
ANT+B
REGULATOR
TUNER +8.7V
TUNER +5.6V
RDS DECODER
(IC51) B+
COM +8V
(AUDIO CIRCUIT B+)
BU B+
PULL UP +5V
U-COM +5V
120
1
7
82
REGULATOR
CONTROL SWITCH
Q633
D677
LED901-904,
LED910-915,
LSW901-917
11
D2
10
D1
D676
LCD DRIVER
(IC901) B+
ACCESSORY CHECK
9
5
LCD B+
TU8.7V
TU5.6V
COM8V
BU+B
Q661
IC671
STB
4
VCC
8.7VON SW
5.6VON SW
23
REGULATOR
7
Q631
D662
29
DOORIND
LO- +12V
MD MECHANISM CONTROLLER
IC501 (2/2)
MDMON
65MD-ON
REGULATOR
10
CONTROL SWITCH
Q363
REGULATOR
CONTROL SWITCH
Q250
60
BU-IN
BUS-ON
61
30
RESET
UNISI
49
48
UNICKIO
LEVEL SHIFT
Q706
05
50
46
UNISO
LINKOFF
LOADING MOTOR
DRIVER (IC305) B+
+3.3V
LED810
(MD DISC SLOT)
LSW810
Z
VCC
+3.3V
REGULATOR
IC401, Q401
LED810,
LSW810
B+ SWITCH
Q402, 403
DRIVER +5V
MOTOR/COIL DRIVER
(IC303) B+
REGULATOR
Q551
+12V
REGULATOR
Q361
+5V
REGULATOR
Q362
2020
MDX-C6400R/C6500R/C6500RX
4-8. SCHEMATIC DIAGRAM – SERVO Board (1/2) –• See page 31 for Waveforms. • See page 36 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD PLAY
: Impossible to measure
∗
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
2424
4-9. SCHEMATIC DIAGRAM – SERVO Board (2/2) –• See page 31 for Waveforms. • See page 36 for IC Block Diagram.
MDX-C6400R/C6500R/C6500RX
(Page
29)
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD PLAY
: Impossible to measure
∗
2525
MDX-C6400R/C6500R/C6500RX
4-12. SCHEMATIC DIAGRAM – MAIN Board (1/3) –• See page 31 for Waveform. • See page 36 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(): MW
[]: LW
(Page 30)
(Page 29)
2828
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