Sony CDX-T70MXDC Service Manual ▷ View online
CDX-T70MXDC/MP3 CDC 6
17
17
CDX-T70MXDC/MP3 CDC 6
9 SDO
12 SDIO
13 BCKIA
14 LRCKIA
62 X1
63 X0
60 XRDE
A
B
C
SDI
BCK
LRCK
TCXRDE
XTAL-IN
CD-ROM DECODER
MP3 DECODER
IC601
39
REQ
19
STANBY
1
RESET
5
I2C SDA
6
I2C SCL
73
DECINT
3
DECSTBY
2
DECXRST
80
SDA
81
SCL
IC604
18
DAC-DATA
19
DAC-CLK
20
DAC-LAT
16
CE
43
WR
17
OE
30 CS1
5 WE
32 OE
20
−
13, 3, 2, 31, 1,
12, 4, 11, 7, 10
3, 4, 7, 10, 11, 15,
38
−
36, 34
−
31, 41,
42, 45, 44
46, 47, 49
−
51,
53
−
55
21
−
23, 25
−
29
IO1
−
IO8
A0
−
A16
AD0
−
AD16
IO0
−
IO7
2
DATA
1
BCK
3
LRCK
SERIAL
INPUT
INTERFACE
13
MC
14
15
ML
FUNCTION
CONTROL
INTERFACE
MD
SCK
16
SYSTEM
CLOCK
MANAGER
8 TIME OVER
SAMPLING
DIGITAL FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTI-LEVEL
DELATA-SIGMA
MODULATOR
D/A
CONVERTER
OUTPUT AMP
AND
LOW-PASS
FILTER
7
VOUTL
10
VCOM
VOUTR
SYSTEM
CLOCK
DIGITAL FILTER,
D/A CONVERTER
IC501
S-RAM
IC602
MC
ML
MD
LOW-PASS
FILTER
IC502
MUTING
Q502, 503
8
MUTING
CONTROL
SWITCH
Q501
26
MUTE
MD
MC
ML
SYSTEM CONTROLLER
IC301 (2/3)
31
PCTX
5
4
3
32
PCRX
68
FL BOOT
CN1
(FOR PC)
CN902 (1/2)
(L)
(R)
SIGNAL PATH
: CD PLAY
6
D
RES
5-2. BLOCK DIAGRAM – MAIN Section (1/2) –
(Page 16)
(Page 16)
(Page 16)
(Page 18)
CDX-T70MXDC/MP3 CDC 6
18
18
CDX-T70MXDC/MP3 CDC 6
RESET
SWITCH
8
DATA
CLK
BUSON
RST
6
5
4
7
B. UP
CN902 (2/2)
52
MCK
50
EHS
53
VREF
EVON
RV302
ELEVATOR HEIGHT
(ADDRESS)
RV301
ELEVATOR HEIGHT
SENSOR
30
+8V
REGULATOR
IC202
DRIVER +8V
BUCHK 92
BATTERY
CHECK
Q202, 203
D210
59
CDON 29
EJECT 75
B. UP +3.3V
BUS INTERFACE
(FOR SONY BUS)
IC201
+5V
REGULATOR
IC203
+3.3V
REGULATOR
Q201, 205
SERVO +5V
SW303
72 MGLK-SW
36 ELVF
37 ELVR
SW302
MAGAZINE IN/OUT
DETECT
ON : When magazine
is set
is set
3
4
9
7
MOTOR
DRIVE
IN1
IN2
OUT1
OUT2
ELEVATOR
MOTOR DRIVE
IC302
M
M104
(ELEVATOR)
SYSTEM CONTROLLER
IC301 (3/3)
RES
10
6
9
11
4
1
12
13
2
8
7
D. O
D. I
CLK. O
BUON. O
B. ON
RST
B. DATA
14
B. CLK
L. OFF
BUONI
RST. I
77
76
78
91
65
SI
SO
SCLK
BUSON
VCC
RESET SIGNAL
GENERATOR
IC204
PS901
79
82
EEDATA
EECLK
5
6
SDA
SCL
EEPROM
IC303
+3.3V
REGULATOR
IC205
SERVO +3.3V
EXTAL
63 XTAL
X301
12.288MHz
+2.5V
REGULATOR
IC603
CD-ROM/MP3
DECODER
(IC601)
B+
SW301, 302
25 MAG-SW
SW301
MAGAZINE
DETECT
D
RES
5-3. BLOCK DIAGRAM – MAIN Section (2/2) –
(Page 17)
CDX-T70MXDC/MP3 CDC 6
19
19
CDX-T70MXDC/MP3 CDC 6
•
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C
: panel designation.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• A
: B+ Line.
• H
: adjustment for repair.
•
Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
supply from CD changer controller.
•
Voltages and waveforms are dc with respect to ground in
CD play mode.
no mark : CD PLAY
CD play mode.
no mark : CD PLAY
•
Voltages are taken with a VOM (Input impedance 10 MW).
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
J
: CD PLAY
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
CDX-T70MXDC/MP3 CDC 6
20
20
CDX-T70MXDC/MP3 CDC 6
5-4. PRINTED WIRING BOARDS – RF Board –
: Uses unleaded solder.
Q101
Q102
IC201
IC101
CN101
R215
C209
R216
R218
R201
C217
R202
R222
R223
R127
R103
R111
R110
C112
R113
R112
R116
R119
C111
R128
R118
C113
R117
C116
R109
R106
C114
C119
R120
R121
R212
R220
R211
C204
R205
R203
C203
R204
R206
R210
R208
R209
R207
C206
C205
C208
R214 R213
R219
C211
C108
C107
C115
C110
SW102
C117
C109
C202
C201
A
MAIN
FLEXIBLE
BOARD
MAIN
BOARD
CN202
(CHASSIS)
1-680-829-
13
(13)
RED
BLK
M
M101
(SLED)
16
CN102
1
OPTICAL
PICK-UP
BLOCK
KSS-721A
OP FLEXIBLE
BOARD
RED
BLK
M
M103
(CHUCKING)
RED
BLK
M
M102
(SPINDLE)
TP
(TE)
TP
(RFAC)
TP
(VC)
RF BOARD
(COMPONENT SIDE)
SW101
(LIMIT)
SW102
(CHUCKING END DETECT)
1-680-829-
13
(13)
RF BOARD
(CONDUCTOR SIDE)
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
(Page 22)
• Semiconductor
Location
Ref. No. Location
IC101
C-5
IC201
F-6
Q101
D-6
Q102
E-5
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