Sony MDXC-6400-R 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
TABLE OF CONTENTS
1. GENERAL
Location of controls ........................................................ 3
Installation....................................................................... 4
Connections ..................................................................... 5
2. DISASSEMBLY ......................................................... 9
3. ELECTRICAL ADJUSTMENTS
Test Mode........................................................................ 16
MD Section ..................................................................... 16
Tuner Section .................................................................. 16
4. DIAGRAMS
4-1. Block Diagram – SERVO Section – ............................... 17
4-2. Block Diagram – TUNER Section – .............................. 18
4-3. Block Diagram – MAIN Section – ................................. 19
4-4. Block Diagram – BUS CONTROL/
POWER SUPPLY Section – ........................................... 20
4-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 21
4-6. Printed Wiring Boards
– SERVO Board (Component Side)/
SENSOR Board –............................................................ 22
4-7. Printed Wiring Board
– SERVO Board (Conductor Side) – .............................. 23
4-8. Schematic Diagram – SERVO Board (1/2) – ................. 24
4-9. Schematic Diagram – SERVO Board (2/2) – ................. 25
4-10. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 26
4-11. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 27
4-12. Schematic Diagram – MAIN Board (1/3) – ................... 28
4-13. Schematic Diagram – MAIN Board (2/3) – ................... 29
4-14. Schematic Diagram – MAIN Board (3/3) – ................... 30
4-15. Printed Wiring Board – SUB Board – ............................ 32
4-16. Schematic Diagram – SUB Board – ............................... 33
4-17. Printed Wiring Board – KEY Board –............................ 34
4-18. Schematic Diagram – KEY Board – .............................. 35
4-19. IC Pin Function Description ........................................... 40
5. EXPLODED VIEWS................................................ 50
6. ELECTRICAL PARTS LIST ............................... 54
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
Never look into the laser diode emission from right avove when
checking it for adustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(KMS-241C/J1NP).
The laser diode in the optical pick-up block may suffer electrostatic break-down easily. When handling it, perform soldering
bridge to the laser-tap on the flexible board. Also perform m easures
against electrostatic break-down suff iciently before the operation.
The flexible board is easily damaged and should be handled with
care.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
Location of controls
Setting the clock
The clock uses a 24-hour digital indication.
Example: To set the clock to 10:08
1
Press (MENU), then press either side of
(DISC/PRST) repeatedly until “CLOCK”
appears.
1 Press (ENTER).
The hour indication flashes.
2 Press either side of (DISC/PRST) to set
the hour.
3 Press the (+) side of (SEEK/AMS).
The minute indication flashes.
4 Press either side of (DISC/PRST) to set
the minute.
2
Press (ENTER).
The clock starts.
After the clock setting is completed, the
display returns to normal play mode.
Tip
You can set the clock automatically with the RDS
feature (see page 17).
Note
In the initial setting, the clock indication appears
while the unit is turned off.
When the D.INFO mode is set to ON, the time is
always displayed (page 24).
SECTION 1
GENERAL
This section is extracted from
instruction manual.
MENU
SOUND
P
R
S
T
-
-
OFF
Refer to the pages listed for details.
1 Volume control dial 19
2 MENU button 8, 10, 12, 13, 14, 15, 16,
18, 19, 21, 24
3 DISC/PRST +/– (cursor up/down) buttons
8, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21, 24
During CD/MD playback:
Disc change 10, 13
During radio reception:
Preset stations select 16
4
Z (eject) button (located on the front
side of the unit behind the front panel)
9
5 DSPL/PTY (display mode change/
programme type) button 9, 10, 12, 17,
20
6 LIST button 12
List-up 13
7 SOURCE (TUNER/CD/MD) button
8, 9, 10, 13, 15, 16, 19
8 Display window
9 OPEN button 7, 9, 26
q; D-BASS button 25
qa SOUND button 23
qs Reset button (located on the front side
of the unit behind the front panel) 7
qd OFF button* 7, 8, 9
S
C
I
D
SOURCE
D
I
S
C
PTY
+
DSPL
-
P
R
S
T
+
LIST
-
SEEK/AMS
ENTER
–
MODE
REP SHUF
1 2 3 4 56
MDX-C6500RX/C6500R
/C6400R
OPEN
D-BASS
TA
AF
qf SEEK/AMS –/+ (cursor left/right) buttons
8, 10, 12, 14, 16, 18, 19, 21, 23, 24
Automatic Music Sensor 10, 14
Manual Search 10
Seek 15, 16, 18
qg ENTER button 8, 10, 12, 13, 14, 15, 16,
18, 19, 20, 21, 24
qh MODE button 19
During CD or MD playback:
CD/MD unit select 9, 13
During radio reception:
BAND select 15, 16
qj Receptor for the card remote
commander
qk Number buttons
During radio reception:
Preset number select 15, 16, 18, 19
During CD/MD playback:
(1) REP 11
(2) SHUF 11
ql AF button 17, 18, 19
w; TA button 18, 19
* Warning when installing in a car
without ACC (accessory) position on
the ignition key switch
Be sure to press (OFF) on the unit for two
seconds to turn off the clock display after
turning off the engine.
When you press (OFF) only momentarily,
the clock display does not turn off and this
causes battery wear.
3
45678
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
SUB PANEL ASS’Y
4 two claws
5 sub panel ass’y
3 screw
(PTT2.6 × 8)
1 screw
(PTT2.6 × 5)
2 cover
3 two screws
(PTT2.6 × 8)
MECHANISM DECK (MG-164NZ-138)
3 two screws
(PTT2.6 × 5)
5 mechanism deck
(MG-164NZ-138)
4 claw
6 flexible flat cable (CNP811)
3 screw
(PTT2.6 × 8)
4 bracket (MD)
1 screw
(PTT2.6 × 5)
2 connector
(CN101)
1 screw
(PTT2.6 × 5)
9
SERVO BOARD
d
)
1 sensor flexible board
2 two screws
(BVTT2 × 4)
2 two screws
(BVTT2 × 4)
3 servo board
(CN102)
1 flexible boar
(CN103)
MAIN BOARD
1 three ground point
screws
2 three screws
(PTT2.6 × 10
3 main board
10
MD COVER ASS’Y
)
3 MD cover ass’y
cassette holder
1 four screws
(B2 × 3)
shaft (MD cover guide)
HEAT SINK
A
2 Pushing the Cassette Holder in the direction of the arrow A with a
screwdriver, etc., disengage the Shaft (MD Cover Guide) from
the slot in the MD Cover Assy.
Note: Take care not to scratch the optiocal Pick-up when pushing
the Cassette Holder with a screwdriver. etc.
1 three screws
(PTT2.6 × 10)
3 heat sink
2 two screws
(PTT2.6 × 12)
1 screw
C6500R/C6500RX
(PTT2.6 × 10)
1 two screws
(PTT2.6 × 10
11
FLOAT BLOCK
)
3 Pushing an arrow A part, raise the float block
up ward at the front to release a lock.
float block
A
lever (lock R)
lever (lock L)
1 tension spring (FLOAT B)
1 tension spring (FLOAT B
2 two tension springs (FLOAT F)
LO MOTOR ASS’Y (LOADING) (M903)
4 Remove the bracket (LO)
in the direction of the arrow A.
1 Remove solders of motor (M903)
A
5 LO motor ass’y (loading)
(M903)
2 tension spring (rack)
3 claw
12
bracket (LO)
– bottom view –
LEVER (LE) ASS’Y
2 stopper washer
2 lever (LE) ass’y
3 roller (GEAR E)
1
HOLDER ASS’Y
2 type-E stopring 1.5
1 spring (CHKG)
2 type-E stopring 1.5
3 lever (lock R)
4 Remove the holder ass’y in the
direction of the arrow.
2 type-E stopring 1.5
3 lever (lock L)
2 type-E stopring 1.5
1 spring (CHKG)
13
CHUCKING ARM ASS’Y
y
holder ass’y
1 Remove the chucking arm ass’y
in the direction of the arrow.
OPTICAL PICK-UP (KMS-241C/J1NP)
7 optical pick-up
(KMS-241C/J1NP)
1 two screws
(K2 × 3)
2 guide shaft (OPT L)
4 screw
(B2 × 3)
6 bearing (SL)
5 feed screw ass’
3 screw
(K2 × 3)
14
SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901)
4 screw
(P1.7 × 1.8)
5 bracket (SL)
9 two screws
(P1.7 × 1.8)
0 bracket (SP)
qa SP motor ass’y
(spindle) (M901)
7 screw
(B2 × 3)
2 two screws
(2 × 8)
3 sensor board
1 Remove solders of motors
(M901, M902)
8 base (SL)
6 SL motor ass’y
(sled) (M902)
15
SECTION 3
ELECTRICAL ADJUSTMENTS
TEST MODE
This set have the test mode function.
<Set the Test Mode>
1. Turn ON the regulated power supply. (The clock is displayed)
Note: Press the [OFF] button, if the clock is not displayed.
2. Push the preset [4] button.
3. Push the preset [5] button.
4. Press the preset [1] button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the [OFF] button.
MD SECTION
MD section adjustments are done automatically in this set.
TUNER SECTION
Tuner section adjustments are done automatically in this set.
16
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
M
M
OUT4F
8
OUT4R
27
OUT2F
25
OUT2R
21
OUT1F
23
OUT1R
12
OUT3F
10
OUT3R
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+
D702
D701
2
6
4
1
3
RST
DATA
CLK
BUS ON
OUT
BATT
SIRCS BUFFER
Q704
RESET SIGNAL
GENERATOR
IC652
SONY BUS INTERFACE
IC701
RESET
SWITCH
DATA IN
DATA OUT
CLK IN
ON IN
BUS ON
SWITCH
BU IN
BATTERY
SWITCH
BATTERY
DETECT
Q701
RST
BUS
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
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