Read Sony CDX-T70MXDC Service Manual online
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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