Sharp CD-BA120 Service Manual page 19

CD SIGNAL
8
7
C23
R12
0.047
680
PD01
1
R79
R13
1.5M
680
PD02
C24
2
2.2/50
VVSS
3
PLL
C21 C81
VCEC
0.1 0.022
C22
4
PCKIST
100P R11
12K
VVDD
5
R14
R10 R80 FR
6
27K 1M
1.2K
HFL
7
C20 SLCIST
8
0.1
R15
SLCO SLICE
R8 9
LEVEL
330 CONTROL
10K
EFMIN
10
C17
C27
JITTV 11
0.0047
C42 0.1
JITTC
68P
12
BH
13
PH(RFENV)
14
FE
15 SW
TE
16
VREF
17
ADAVDD
18
C29
C82 +
C28
0.1
0.022
47/10
-
ADAVSS
19
C41
PHREF
100/10
20
2
BHREF 21
TBLO
22
TDO
23
R44
R43
D93 FDO
1K 24
220K
DS1SS133
25
R35
1
1K
13
R38
270
6
LD_M+
LD_M-
VCC4 +B
LOADING M+
LOADING M-
R21
470
C47
D21
100/16 DS1SS133
GND
VCC3
SP-
SP+
SPO SPDO
VCC2(SPN)
+B
• The numbers 1 to 13 are waveform numbers shown in page 14.
7
3
C71 100P
C72 0.01
C73 100P
R94
C74 100P
10K
C75 100P
C76 100P
R95
10K
C77 100P
C78 100P
+B
+B
DEFECT
C80
0.1
EFMO
VDD5V
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
GENERAL
IC2
LC78641E
SERVO/SIGNAL
CONTROL
FRAME SYNC
DEFECT,PROTECT
EFM DECODE
CLV
CONTROL
JITER
DEFECT
CONTROL
SW
AUTO
SERVO
ADJUST
PROCESSEROR
A/D
GENERAL
S/H
D/A
ERROR
AUDIO
CORRECT OUT
FSX
26 27 28 29 30 31 32 33 34 35 36 37 38
R39
470
C31
100/10
+B
+B
R16
10K
+B
R22
470
D22
DS1SS133
2 3
Q2
1
KRC102M
+B
8 9
Figure 19 SCHEMATIC DIAGRAM (2/10)
R71 1K
R72 1K
R73 1K
R74 1K
R75 1K
R76 1K
R77 1K
R78 1K
L62
2.2µH
C44
0.1
COMMAND
INTERFACE
C45
100/10
SBCK
64
SUBCODE 63 PW
DECODE
CRC
62 SBSY
12
61 SFSY
16M
60 11
DATA
59
10
58 DATACK
57 LRSY
XL1
16.9344MHz
ASDFIN
56
ASDACK
55
ASLRCK
54
XVSS
53
R20
52
XOUT 220
XIN
51
+B
XVDD
C34
50
0.022
RVDD +B
49
RCHO
48
R82
RVSS
47 2.2K
LVSS
46
LCHO
45
R81
C39
LVDD
44 2.2K
10/16 +B
43 MUTER
C56
42
MUTEL
330/6.3
41 EMPH
39 40
TEST
+B +B
C30
9
0.1
CONSTANT VOLTAGE
L61
0.82µH
Q1
2SC3203Y
+B
ZD61
DZ3.9BSB
10
– 19 –
CD-BA120/125
DRF
RES
WRQ
INT
DO
DI
CL
CE
+B
R-CH
1
AGND
2
P20 1 - B
L-CH
CNS601
3
DGND
TO MAIN PWB
4
+5V
5
+B
CNP11
C83
0.022
+B
+B
INT
1
CDINT
WRQ
2
WRQ
DRF
3 DRF
CE
4
CE
DO P27 12 - B
5 DO
+B
CNS702
DI
6 DI
TO DISPLAY PWB
CL
CLK
7
RES
8 CD RES
9 CLAMP SW
10
GND
CNP12
CNS4
BI4
SW1
O/C
OPEN/
1 1 1
CLOSE
2 2 2
SW2
GND(D)
CLAMP
3 3 3
DISC_NO
4 4 4
NUMBER
M+
+
5 5 5
M
M-
6 6 6
- UP/DOWN
LOADING
CNP4
CD LOADING
MOTOR PWB-E
11 12
SW3
DISC
M3
T/T