Sharp CD-BA250 Service Manual page 21

C34
100P
C33
100P
C32
100P
C30
100P
C28
100P
C27
0.022
C5
47(ML)
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
1 SLCO
2 SLCIST
2
3 EFMIN
5
RF
4
C8
8
5 RFVDD
7
047
RSVSS
6
7
FIN1 A
TP1
8
FIN2 B
IC1
TIN1 E
9
LC78645E
TIN2 F
10
C10
VREF
11
CD SERVO
10/50
REF1
12
FE
13
C11
TEC
14
0.22/50
TE
15
4
6
RFMON
16
JITTC
17
P
ADAVDD
18
ADAVSS
19
TDO
20
FDO
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
2
1
R20
10K
4 3 2 1
R46
470
D2
DS1SS133
3
1
39 40 41 42
LD_M+
LD_M–
• The numbers 1 to 12
7
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3
12
DATA
60
59
DATACK
LRSY
58
10
ASDFIN
57
ASDACK
56
ASLRCK
55
IGMOUT
54
EFLG
53
C2F
52
XVSS
51
FSX/16MIN
50
R43
XIN
49
100
XOUT
48
XVDD
47
RVDD
46
RCHO
45
RVSS
44
LVSS
43
LCHO
42
41
C44
0.001
9
R45
470
D1
DS1SS133
2
Q3
KRC102 M
R49
1
are waveform numbers shown in page 38.
8 9
Figure 21 SCHEMATIC DIAGRAM (2/9)
R38 1K
R37 1K
R36 1K
R35 1K
R34 1K
R33 1K
R32 1K
R29
2.2K
R28
2.2K
11
XL1
33.8688MHz
R22
100
ZD1 DZ3.3BSB
C24
C17
10/50
0.022
R25
LVDD
2.2K
C16
330/6.3
C26
C23
0.0015
10/50
R24
R27
C48
2.2K
10K
0.022
C25
0.0015
R26
10K
KTC3203 Y
R30
8.2K
R19
15K
CNP4
10
– 21 –
CD-BA250/CD-BA2600
WRQ
1
DRF
2
CE
3
DO
4
DI
5
CL
6
CD RES
7
CLAMP SW
8
O/C, DISC NO
9
CNP8
C51
0.022
R-CH
1
AGND
2
L-CH
3
DGND
4
+5V
5
+5V
6
CNP7
Q2
R47
100
ZD2
DZ3.9BSB
SW1
OPEN/CLOSE
1 1 1
2 2 2
SW2
3 3 3 CLAMP
4 4 4
SW3
DISC NO.
5 5 5
M M3 T/T
6 6 6 UP DOWN
LOADING
CNS4
CD LOADING
MOTOR PWB-E
11
CNS8
FROM
DISPLAY PWB
P27 8-A
CNS601
FROM
MAIN PWB
P22 1-A
12