Removing And Reinstalling The Main Parts; Block Diagram - Sharp CD-BP1450V Service Manual

2127 3545
ICV3
SDM4260C
DRAM
20
6
1
JK902
CNPV3 NJM2267M
VIDO OUT
6
OPERATION
2
M3
T/T
UP/DOWN
BI4 CNS4 CNP4
MOTOR
-
6 6 6
SW3 M
DISC
5 5 5
NUMBER
4 4 4
SW2
CLAMP
3 3 3
2 2
2
1 1 1
SW1
OPEN/
CLOSE
CNP12
GND 10
CLAMP SW 9
CD RES
8
CLK 7
DI 6
DO 5
CE
4
DRF
3
WRQ 2
CDINT 1
CNP11
5
+B3(+5V)
4
DGND
L-CH 3
AGND 2
1
R-CH
XV2
27MHz
14 13 10
73 MD8
DQ15 39
MD11
70
ICV2
36
DQ12
68 MD12
34
DQ11
D61012GC
65 MD15
31
DQ8
62
MD0 MPEG DECODER
26
A8
MD4
58
A4 22
56
MD5
A3 19
54 MD7
16
A0 53 MCAS
RAS 14 52 MWE
WE 13 49
MRAS
10 48
MA0
DQ7
DQ4 7 45
MA3
DQ3 5 42
MA4
DQ0 2 MA8
38
86 35 32 33 9597 98 99
ICV4
VIDEO
1
AMP.
7
+B3
56 55 54 35 57
40
30 CONT2
CONT3
31
Q2 32 CONT4
RCHO
48
RFEV
RVSS
47
46 LVSS SERVO/SIGNAL
45 LCHO
53
76 CONT7
75 CONT6
65 66 67 68 69 70 71 72
Figure 11 BLOCK DIAGRAM (1/3)
7 5 2
18
57
92
64
84
83
76
75
63
51
44
36
25
23
17
15
1
QV2
+B5
59 33 26 25 24 23
19
TE
16
FE 15
RFEV
14
HFL 7
IC2
3
LC78636E
50
XVDD
CONTROL
RVDD 49
44
LVDD
+3.3V
36
VDD
ADAVDD
18
VVDD
5
+5V
73
52 51
XL1
16.9344MHz
– 11 –
+B3
XV1
4.19MHz
10 24 35 40 41
HD0
50
HD7
45
42
33
ICV1
25
MPEG CONTROLLER
17
IX0352AW
16
14
9
7
15 18 19 20 22
QV3
35 29 22 21 14 8
27
39
26
38
16
IC3
42
M63001FP
15
FOCUS/TRACKING/
41
SPIN/SLED DRIVER
7
25
6
17
5
2
4
1
18 40 24 23 28
+5V
+3.3V
LASER
Q3
DRIVER
22
FE-
21
20 FE
LDD
19 TE-
IC1
TE
18
LA9235M
17 HFL
TIN2
SERVO AMP.
TIN1
FIN2
FIN1
30 23 11 9
Q1
CONSTANT
+3.3V
VOLTAGE
CD-BP1450V
SW4
PICKUP IN
M M
M2
M1
SLED
SPINDLE
MOTOR
MOTOR
TRACKING COIL
FOCUS COIL
8
7
PD
4
3
2
1
+5V