Sony CDX-T70MXDC Service Manual ▷ View online
CDX-T70MXDC/MP3 CDC 6
25
25
CDX-T70MXDC/MP3 CDC 6
5-9.
SCHEMATIC DIAGRAM – MAIN Board (2/3) –
R601
R604
C604
C613
C611
C612
C601
R618
C609
C606
R616
C607
R
6
15
C608
C605
R602
C603
C615
C516
R511
R502
R507
C504
C514
C510
R504
R506
C512
C511
R505
R501
C502
C513
D502
R
515
R
516
R
517
C509
C501
C506
R509
D501
C515
R510
R508
R512
C505
R503
C508
IC502
R514
C602
Q502
Q503
IC604
IC501
IC601
IC603
1k
100k
0.1
0.1
0.1
0.1
10
16V
1M
1000p
0.1
270
0.33
27
0
0.1
0.1
100
100p
0.1
10
16V
680
10k
10k
220p
1000p
10
16V
100
100k
100p
100p
100k
10k
0.1
100
16V
MM3Z5V1ST1
100
100
100
0.1
0.1
100 16V
10k
MM3Z5V1ST1
1000p
10k
10k
680
220p
100
10
16V
TLV2362IPWR
220
0.1
DTC314TK
DTC314TK
TC7SH08FU
PCM1748E-2K
CXD9684R-006
RN5RZ25BA
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
C
1
C
2
C
3
C
4
C5
C6
C7
CE
A5
A3
A4
A0
A1
IO2
IO3
IO4
IO5
IO6
IO7
A2
OE
A12
A11
A10
A9
A8
A7
A6
A13
A14
WR2
A16
A15
IO1
TC-XRDE
DECXRST
SDA
DECSTBY
DECINT
IO0
ML
MC
MD
SCL
IO2
IO3
IO4
IO5
IO6
IO7
VSSP
PDO
VCOI
VDDP
X1
X0
VSSX
MIMD
AD0
AD1
AD2
AD3
AD4
AD5
LRCKIA
BCKIA
SDI0
AD11
AD
12
CKS
TESTP
VRAR
RO
LO
VRAL
STANBY
VSS
IO1
IO0
AD15
AD16
AD14
AD13
VSS
AD6
AD7
AD8
AD9
AD10
VDDT(3.3V)
VDD(2.5V)
VDAL(2.5V)
VDAR(2.5V)
VDDT(3.3V)
VSS(2.5G
ND)
VSSL(2.5GN
D)
VSSR(2.5GND)
VDD(2.5V)
VD
DX(2.5V)
VC
O
M
V
O
U
T
L
A
G
N
D
V
O
U
T
R
Z
E
R
O
L
Z
ER
O
R
B
C
K
D
A
TA
L
R
C
K
D
G
N
D
V
D
D
V
C
C
S
C
K
M
L
M
C
M
D
(2/3)
MUTING
MUTING
VCC
GND
LOW-PASS
FILTER
V
G
GATE SWITCH
DIGITAL FILTER,
D/A CONVERTER
WR
REQ
SDO
CE
OE
I2C_SDA
I2C_SCL
RESET
XRD
E
CD-ROM DECODER,
MP3 DECODER
GND
NC
CE
+2.5V REGULATOR
O
REG
I
L
(Page 24)
(Page 26)
•
See page 28 for Waveforms.
•
See page 28 for IC Block Diagrams.
CDX-T70MXDC/MP3 CDC 6
26
26
CDX-T70MXDC/MP3 CDC 6
R409
R518
C405
C404
R417
R416
R418
FB501
C416
C415
IC402
C419
R419
R413
C420
C414
C413
C412
C411
R411
C410
C409
R410
C408
C406
R406
C407
R408
R405
R404
R403
R402
C403
R401
C421
C417
C402
C401
R407
C418
R412
CN202
IC401
X501
BP1
BP2
BP3
10k
330
220p
0.1
0
0
0
0.1
0.1
MSM51V17400F-10TK-FS
0.1
1k
100k
100p
0.1
0.1
0.1
0.01
100k
0.47
220p
1M
0.0015
1
1M
0.047
3.3k
470k
33k
100k
33k
220p
33k
22
6.3V
0.1
0.1
0.1
3.3k
0.0022
10k
22P
CXD3027R
16.9344MHz
B1
B2
B3
B4
C1
C2
C3
C4
C5
C6
C7
FOK
A
0
A
1
A
2
A
3
A
1
0
X
R
A
S
X
W
E
X
O
E
X
C
A
S
D
0
D
1
D
2
D
3
A4
A5
A6
A8
A9
A7
XWRE
XRDE
XQOK
SQSO
SQCK
XRST
CDDAT
CDLAT
CDCLK
SENS
SCLK
GFS
GRSCOR
M
D
P
S
F
D
R
S
R
D
R
T
F
D
R
T
R
D
R
F
F
D
R
F
R
D
R
FRDR
FFDR
TRDR
TFDR
MDP
SRDR
SFDR
SCOR
D3
D2
XCAS
XOE
A9
A8
A7
A6
A5
A4
D0
D1
XWE
XRAS
A10
A0
A1
A2
A3
SAVE_SW
R/RW_SEL
LIM_SW
LOADR
LOADF
RFAC
RFAC
RFDC
R
F
D
C
TE
TE
TE
FE
FE
8V
LIM_SW
TE
FE
VC
5V
SAVE_SW
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
MDP
GND(8V)
GND(5V)
DVCC(3V)
R/RW_SEL
RFAC
RFDC
LOADR
LOADF
(3/3)
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
D-RAM CONTROLLER
D-RAM
FLEXIBLE
BOARD
MAIN
5-10.
SCHEMATIC DIAGRAM – MAIN Board (3/3) –
•
See page 28 for Waveforms.
(Page 24)
(Page 25)
(Page 21)
•
See page 28 for IC Block Diagrams.
CDX-T70MXDC/MP3 CDC 6
27
27
CDX-T70MXDC/MP3 CDC 6
: Uses unleaded solder.
5-11.
PRINTED WIRING BOARD – JACK Board –
CN902
1
10
JACK BOARD
(CONDUCTOR SIDE)
13
1-683-528-
12
B
JACK FLEXIBLE
BOARD
MAIN BOARD
CN201
(CHASSIS)
5
4
8
7
6
2
1
3
(FOR SONY BUS)
(R)
(L)
(12)
1-683-528-
12
(12)
JACK BOARD
(COMPONENT SIDE)
1
2
3
4
5
6
7
A
B
C
D
E
FB902
FB901
FB903
CN902
CN901
PS901
10P
13P
5A
32V
CLK
RST
DATA
BUSON
GND
GND
GND
B.UP
B.UP
B.UP
LCH
AGND
RCH
CLK
RST
DATA
BUSON
GND
GND
B.UP
LCH
AGND
RCH
FLEXIBLE
BOARD
JACK
(CHASSIS)
(L)
(R)
MAIN
BOARD
(1/3)
CN201
5-12.
SCHEMATIC DIAGRAM – JACK Board –
(Page 22)
(Page 24)
CDX-T70MXDC/MP3 CDC 6
28
28
CDX-T70MXDC/MP3 CDC 6
IC101
CXA2581N-T4
•
Waveforms
•
IC Block Diagrams
– RF Board –
wa
IC101
qg
(RFAC)
500 mV/DIV, 5 ms/DIV
1 to 1.7 Vp-p
wd
IC101
qk
(TE)
200 mV/DIV, 5 ms/DIV
Approx.
250 mVp-p
250 mVp-p
ws
IC101
qh
(FE)
100 mV/DIV, 5 ms/DIV
Approx.
100 mVp-p
100 mVp-p
1
IC301
yg
(EXTAL)
1 V/DIV, 50 ns/DIV
81.4 ns
2.2 Vp-p
4
IC601
ys
(X1)
1 V/DIV, 20 ns/DIV
59.1 ns
3.3 Vp-p
7
IC501
qh
(SCK)
1 V/DIV, 20 ns/DIV
59.1 ns
3.3 Vp-p
qa
IC401
of
(XTAO)
1 V/DIV, 20 ns/DIV
59.1 ns
3.3 Vp-p
2
IC601
qd
(BCKIA)
1 V/DIV, 200 ns/DIV
472 ns
3.3 Vp-p
22.7
µ
s
3.3 Vp-p
3
IC601
qf
(LRCKIA)
1 V/DIV, 10
µ
s/DIV
22.7
µ
s
3.3 Vp-p
9
IC401
ih
(LRCK)
1 V/DIV, 10
µ
s/DIV
5
IC501
1
(BCK)
1 V/DIV, 200 ns/DIV
472 ns
3.3 Vp-p
q;
IC401
o;
(BCK)
1 V/DIV, 200 ns/DIV
472 ns
3.3 Vp-p
22.7
µ
s
3.3 Vp-p
6
IC501
3
(LRCK)
1 V/DIV, 10
µ
s/DIV
8
IC401
rd
(MDP)
1 V/DIV, 1
µ
s/DIV
3.8
µ
s
2 Vp-p
– RF Board –
– MAIN Board –
RW/ROM
RW/ROM
EQ ON/OFF
VOFST
VOFST
DVC
VC
VC
VC
RW/ROM
VC
DVC
30
29
28
+
–
+
–
DVC
VCC
DVC
27
26
25
24
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
C
A
A
A
B
C
C
D
B
C D
D
+
–
1
2
APC AMP
5
6
7
8
9
4
RFAC
SUMMING
AMP
RW/ROM
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11
GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ IN
LD
PD
GND
A
B
C
D
AC SUM
E
F
DVCC
DVC
RFAC
SW
DC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
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