Sharp CD-BP90W Service Manual page 31

R94
+B
10K
R95
10K
C23
R12
047
680
R79
1.5M
C24
2.2/50
+B
C21
0.1
VSS
8
7
1
22
80 79
R11
12K
1 PD01
2 PD02
R10
3 VVSS
7K
PCKIST
4
5 VVDD
R14
FR
6
1.2K
7 HFL
R80
8 SLCIST
1M
15
SLCO
9
0K
10 EFMIN
JITTV
11
C26
C27
0.047
12 JITTC
0.1
13 BH
14 PH(RFENV)
15 FE
TE
16
17 VREF
ADAVDD
18
19 ADAVSS
20 PHREF
BHREF
21
22 TBLO
TDO
23
24 FDO
R44
1K
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
2 1
6
R22
D22
470
1SS133
Q2
KRC102 M
2
D21 1V
R21
1SS133
1 0V
470
• The numbers 1 to 13
7
3
C71 100P
C72 100P
C73 100P
C74 100P
C75 100P
C76 100P
C77 100P
C78 100P
78 77 76 75 74 73 72 71 70 69 68 67
IC2
LC78641E
SERVO/SIGNAL
CONTROL
C31
100/10
C30
0.1
3
0V
are waveform numbers shown in page 41.
8
Figure 31 SCHEMATIC DIAGRAM (12/12)
R71 1K
R72 1K
R73 1K
R74 1K
R75 1K
R76 1K
R77 1K
R78 1K
L62
2.2µH
C45
100/10
66 65
64
SBCK
12 C44
63
PW
0.1
62
SBSY
11
61
SFSY
60
16M
10
59
DATA
58
DATACK
57
LRSY
56
ASDFIN
55
ASDACK
54
ASLRCK
C57
53
XVSS
30P
R20
52
XOUT
220
51
XIN
50
XVDD
0.0015
49
RVDD C38
10/16
48
RCHO
47
RVSS R82
2.2K
46
LVSS
45
LCHO
R81
C39
2.2K
10/16
44
LVDD
43
MUTER
C34
0.022
42
MUTEL
41
EMPH
C56
470/6.3
R19
9
47
5V
3.3V
Q1
L61
KTC3203 Y
0.82µH
4V
R58
220
C64
ZD61
47/10
DZ3.9BSB
9 10
– 31 –
CD-BK100W/CD-BP90W
DRF
RES
WRQ
INT
DO
DI
CL
CE
R-CH
1
AGND
2
L-CH
3
DGND
FROM MAIN PWB
4
+B +5V
5
R84 R83
10K 10K
C43
0.0015
C40
INT
1
WRQ
2
DRF
3
CE
4
DO
C83
5
0.022
DI
6
FROM DISPLAY PWB
CLK
7
+B
RES
8
CLAMP SW
9
GND
10
+B
O/C
1 1
2 2
GND(D)
3 3
DISC_ON
4 4
M+
5 5
M–
6 6
11
P20 1 - B
CNS601
P29 12 - B
CNS702
CD LOADING
MOTOR PWB-G
BI4
SW1
1
OPEN
CLOSE
2
SW2
CLAMP
3
SW3
4
DISC
NUMBER
5 +
M
6
–
M3
T/T UP/DOWN
LOADING
12