Sony D-EJ250 - Page 14

14
14
D-EJ250
3.0 Vp-
p
5.7 µ sec
• IC BLOCK DIAGRAM
IC302 AN17020B-E1
3
4
7
5
6
8
9
10
15
16
1
2
14
13
12
11
+
–
+
–
MUTE
RF1
RF2
BEEP
HEADPHONE
/LINE
SWITCH
GA-R
BEEP
MUTE
HP/L
R-IN
GND
L-IN
RIP-F1
CR
VCC1
RIP-F2
VCC2
ROUT
GND
LOUT
GA-L
IC601 BU9354CKV
1
100
AVDD1 (2.0V)
2
LD
3
PD
4
VMON
5
VCHK
6
E
7
F
8
B
9
A
10
AVSS1
11
BIAS
12
N.C.
13
RFI
14
PKC
15
BTC
16
RFGO
17
DETI
18
ASYI
19
ASYO
20
MON1
22
ADPFO
23
ADPFI
24
FCO
25
PCO
75
FDOP
74
FDON
73
CLVOP
72
CLVON
71
CLKDRV
70
GFS
69
EXPLCK
68
TEST_S
67
EFM/YFLG
66
C2FX
65
FOK_O
64
63
62
61
60
59
58
DOCKO
DOUTAO
LRCKO
DOUTAI
LRCKI
57
TDO
TEST
DEFECT_O
56
TDI
55
TMS
54
TCK
53
CLK4M
52
XBUSY_O
51
DVDD (1.5V)
A3
99
A2
98
A1
97
A0
96
A4
95
A5
94
A6
93
A7
92
A8
91
A9
90
XRAS
88
D1
87
D0
86
DVDDIO2 (2.4V)
85
D3
84
D2
83
XCAS
82
A10/CAS2B
81
DVSSIO2
80
DVDDIO (2.0V)
79
SDOP
78
SDON
77
TDOP
76
TDON
28
RLINI
29
RDACO
26
AVSS2
27
RLINO
30
VCDACO
31
LDACO
32
LLINI
33
LLINO
34
AVDD2 (2.25V)
35
MUTE
36
DVDDIO (2.0V)
37
XIN
38
XOUT
39
DVSSIO
40
DVDD (1.5V)
41
DOCKI
42
DVSS1
43
SCOR
44
XRST
45
POFF
46
DVSSIO
47
SCLK
48
SRW
49
SDIN
50
SDOUT
ESP
SERVO CORE
APC
PWM
FLAG
21
MON2
89
XWE
A/D
D/A
PLL
1bit DAC
WINDOW ECC
CLOCK
GEN
SUB SIO
RF
AMP
•WAVEFORMS
IC403 qd DSW
2.0 Vp-p
5.7
µ sec
0.4 to 0.8Vp-p
2.0 Vp-
p
16.934 MHz
2
IC403 ef SYNC
VOL/DIV : 1 V AC
TIME/DIV : 2 µ sec
3
IC601 qd RFI
VOL/DIV : 0.5 V AC
TIME/DIV : 0.5 µ sec
4
IC601 ek XOUT
VOL/DIV : 1 V AC
TIME/DIV : 50 nsec
1
VOL/DIV : 1 V AC
TIME/DIV : 2 µ sec
5
IC601 td CLK4M
6
IC801 2 XIN
VOL/DIV : 1 V AC
TIME/DIV : 0.2 µ sec
VOL/DIV : 1 V AC
TIME/DIV : 0.2 µ sec
2.3 Vp-
p
0.237 µ sec
2.3 Vp-
p
0.237 µ sec
Ver 1.2
For Schematic Diagrams:
Note:
• All capacitors are in µF unless otherwise noted. pF µµF 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise specified.
• f : internal component.
• A : B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power supply
from battery terminal.
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production toler-
ances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler-
ances.
• Circled numbers refer to waveforms.
• Signal path.
E : CD PLAY
• Abbreviation
CND : Canadian model.
E18 : AC100-240 V Area in E model
EE : East European model
HK : Hong Kong model
TH : Thai model
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
For Printed Wiring Boards:
• X : parts extracted from the component side.
• a : Through hole.
• f : internal component.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Abbreviation
CND : Canadian model.
E18 : AC100-240 V Aarea in E model
EE : East European model.
HK : Hong Kong model.
TH : Thai model.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.