Sharp CD-BK260V Service Manual page 30

CD-BK260V/CD-BK2700V/CD-BK280V
A
PICKUP UNIT
VCC
7
B
VREF
6
E
5
A
4
B
3
F
2
C
1
C
D
E
TR–
1
TR+
2
TR+
FO+
3
FO+ FO–
4
FO–
5
PD
TR–
6
VR
7
LD
8
GND
F
CD MOTOR PWB-F
M1
+
SPINDLE
M
1
G MOTOR
–
2
M2
+
3
SLED
M
MOTOR
4
–
5
SW4
6
PICKUP IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.
1
CD VIDEO PWB-C (1/2)
CNP9
7
7 7
6
6 6
R51 68K
5
5 5
R52 56K
4
4 4
R53 56K
3
3 3
R54 68K
2
2 2
R56
56K
1 1
1
C53
47/6.3
0.001
Q3
KTA1504 GR
LASER
DRIVER
C52
0.01
CNP10
1 1
TR–
1
2 2
TR+
2
3 3
FO+
3
4 4
FO–
4
5 5
GND
5
6 6
PD
6
7 7
VR
7
8 8
LD
8
CNP3
SP+
6
1 6
SP–
5
2 5
SL+
4
3 4
SL–
3
4 3
PUIN
2
5 2
GND(D)
1
6 1
2
Figure 30 SCHEMATIC DIAGRAM (9/13)
R50
47
+B
TIN1
FIN1
FIN2
TIN2
R55
56K
FIN1
1
REF
FIN2
2
REF
TIN1
3
REF
TIN2
4
REF
C6 100/10
REF1
5
VREF
C8
6
0.1
7
APC
LDD
8
GND
9
LDON
10
C51
ODRV
11
AGON
AGCON
12
REF
R25 EFBL
13
10K
TEST0
R47
14 LPF
3
TES1
REF
15
LA9235M
+B
SERVO AMP.
C88
1000/6.3
C19
0.022
TDO
FDO
C46
0.022
+B
R48
6.8K
C50
100/10
C49 100/10
FOCUS/TRACKING/SPIN/SLIDE DRIVER
3 4
– 30 –
C18
C11
47/6.3 6P(CH)
C12
VCC +B
30
0.022
ODRV
RFSW
29
REF R42
56K R5
AGCON
39K
RF–
28
C20
R6
27K 0.1
RF
REF
PH 27
C13
26
0.01
PH
25
0.0047
C14
DH
BH
24
0.33
ODRV
23
RFEV
PH/BH 22
R3 47K
FE–
REF
21
LPF
FE
REF
20
REF
R4
TE–
LPF 19
10K
TE
REF 18
HFL
17
REF
REF
16 TEST
4
IC1
13
+B
1
42
+
–
+
–
2
41
3 +
+ 40
+
4 39
5
38
6
37
7
36
8
35
9 34
10 33
11 32
31
12
13 30
14
29
+B
15 28
16 27
+
17 26
+
18 + 25
+
+ +B
19 + 24
+B
20
23
–
–
21 22
+B
IC3
M63001FP
5
IC2
LC78636E
SERVO/SIGN
CONTROL
8
7
C23
R12
0.047
680
PD01
1
R79 1.5M
R13
680
PD02
C24
2
2.2/50
VVSS
3
C21 C81 0.022
0.1
PCKIST
C25
4
0.022
R11
+B
VVDD
12K
5
R10 R14 FR
R80
6
27K 1.2K
1M
HFL
7
R15
SLCIST
8
10K
SLCO
R8
9
330
EFMIN
10
JITTV
C27
C17
11
0.1
C42
JITTC
12
68P(CH)
BH
13
PH(RFENV)
14
FE
15
TE
16
VREF
17
+B
ADAVDD
18
C82
C28
0.022
47/10
ADAVSS
19
PHREF
C29
20
0.022
BHREF
4
21
TBLO
22
TDO
23
2
FDO
24
R35
SPDO
1K
4
R38
270
R37
1.5K
+B
R2
47
C47
100/10
+B
6