Sharp CD-DD4500 Service Manual page 25

C34 100P
C33 100P
C32 100P
C30 100P
C28 100P
C27 0.022
80 79 78 77 76 75 74 73 72 71
1 SLCO
2 SLCIST
EFMIN
3
RF
4
5
7
RFVDD
5
7
78 FR
RSVSS
6
FIN1 A IC1
7
TP1
8 LC78645NE
FIN2 B
9
CD SERVO
TIN1 E
10
TIN2 F
C10
11
VREF
0/50
12
REF1
13
FE
4
21 FDO
14
TEC
SPDO
22
15
TE
SLDO
23
16 RFMON
17 JITTC
ADAVDD
18
ADAVSS
19
TDO
6
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
3 2 1
R20
10K
R46
470
D2
D1SS133
3
1
KRC102 M
40 41 42
LD_M+
LD_M–
• The numbers 1 to 12
7
8
12
70 69 68 67 66 65 64 63 62 61
11
DATA 60
DATACK 59
10
LRSY 58
ASDFIN 57
3
ASDACK 56
ASLRCK 55
IGMOUT 54
EFLG 53
C2F 52
XVSS 51
FSX/16MIN 50
XIN 49
R43
48
XOUT
220
XVDD 47
42
LCHO
46
RVDD
41 LVDD
RCHO 45
44
RVSS
LVSS 43
42
41
9
R45
470
D1
D1SS133
2
Q3
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
R49
1
are waveform numbers shown in page 50.
8
Figure 25 SCHEMATIC DIAGRAM (2/14)
R38 1K
R37 1K
R36 1K
R35 1K
R34 1K
R33 1K
R32 1K
R29
2.2K
R28
2.2K
C20
15P
C19
15P
R22
100
C17
0.022
ZD1
DZ3.3BSB
C16
10/16
R19
15K
9 10
– 25 –
1 WRQ
2 DRF
CE
3
4 DO
5 DI
6 CL
CD RES
7
CLAMP SW
8
O/C,
9
DISC NO
CNP8
1
DGND
+5V
2
+5V
3
BI7
C51
0.022
DGND
1
DIGITAL
2
OUT
C48
0.022
Q2
KTC3203 Y
R47
100
ZD2
DZ3.9BDB
R30
SW1
8.2K
OPEN/CLOSE
1 1 1
2 2 2
3
3 3
4 4 4
5
5 5
M
6
6 6
UP DOWN
LOADING
CNP4
CNS4
CD LOADING
MOTOR PWB-E
11
CD-DD4500
BI703
CNS703
1 9
2 8
3 7
FROM
4 6 DISPLAY
PWB
5 5
P29 7-H
6 4
7 3
8 2
9 1
CNS606
FROM
MAIN PWB
P26 6-H
CNS7
1
2
CNP501
TO
DOLBY PWB
P32 1-B
SW2
CLAMP
SW3
DISC NO.
M3 T/T
12