Sharp XL-HP515 Service Manual - Page 16

Focus/tracking, Spin/sled Driver, Digital Signal Processor, Lc78648e, La6261

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Figure 4-3 BLOCK DIAGRAM (3/3) 4 - 3 PICKUP UNIT VCC VREF E A B F +B8 C TR+ FO+ FO- TR- TR- TR+ FO+ GND M1A SPINDLE M + MOTOR - M2A + SLED M MOTOR - SW1A PICKUP-IN 6 5 4 3 2 1 CNP3 +B8 13 VREF Q1 19 LDD 20 LDS 0.82µH 49 XVDD 1 AVDD1 26 AVDD2 27 DVDD 60 DVDD A 80 VVDD +5V 7 AIN 8 CIN 9 BIN 10 DIN 14 EIN 15 FIN XL1 16.9344 MHz 48 XOUT XIN 47 79 61 56 55 54 5 1 46 40 28 25 RCHO 44 LRVSS 43 LCHO 42 IC1 LC78648E CD DIGITAL SIGNAL PROCESSOR LVDD 41 RVDD 45 CE 62 CL 63 DI 64 DO 65 *WRQ 66 *RES 67 DRF 68 MOT_A-/CONT4 MOT_A+/CONT5 MO_SPEED/CONT6 MO_B+/CONT3 MO_B-/CONT2 SPDO SLDO TDO FDO CONT1 36 21 22 23 24 35 36 70 74 75 MO_SPEED +B8 +B4 30 26 7 25 27 9 28 IC2 LA6261 FOCUS/TRACKING/ SPIN/SLED DRIVER PVCC2 PVCC1 SVCC VREFIN PGND1 SGND PGND2 1 VO3+ 2 VO3- 35 VO4+ 36 VO4- 3 VO2+ 4 VO2- 5 VO1+ 6 VO1- 8 10 VO6+ VO6- VO5+ VO5- VCONT6 34 33 32 31 24 VIN1 VIN2 11 VIN3 13 VIN4 15 17 FWD6 REV6 22 23 FWD5 REV5 19 20 VCONT5 21 Q2 A +5V +B8 +B4 +B7 1 R-CH 2 AGND 3 L-CH 4 DGND 5 D_+5V 6 D_GND 7 +8V 8 A_+5V CNP2 CNP5 14 CD_RES 13 WRQ 12 DRF 11 DO 10 DI 9 CL 8 CE 7 DISC 6 CLAMP 5 TRAY_SW1 4 TRAY_SW2 3 PHOTO 2 D_GND 1 +5V FROM DISPLAY SECTION 1 D_GND 1 2 TRAY_SW2 2 3 TRAY_SW1 3 4 CLAMP 4 5 DISC 5 6 PHOTO 6 7 +5V 7 8 TR+ 8 9 TR- 9 10 CAM+ 10 11 CAM- 11 SW3 TRAY SW2 SW2 SW1 TRAY SW1 CLAMP SW4 RX1 DISC PHOTO + - INTERRUPTER M M1 TRAY GND MOTOR + - M2 M MAIN CAM MOTOR CNP4 CNB1 XL-HP515 TO MAIN SECTION

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XL-HP515
4 – 3
FOCUS/TRACKING/
SPIN/SLED DRIVER
+B7
RCHO
LRVSS
LCHO
LVDD
RVDD
GND
GND
TR–
TR+
TR+
FO+
FO+
FO–
F
C
B
A
E
VCC
PICKUP UNIT
TR–
VREF
MO_SPEED
CNP3
CNP5
CNP4
CNB1
CNP2
Q1
Q2
LDD
VREF
LDS
DVDD
XVDD
AVDD1
AVDD2
DVDD
VVDD
A
+5V
A
+5V
FIN
EIN
CIN
AIN
DIN
BIN
+B8
+B8
–
–
+
+
MO_SPEED/CONT6
MOT_A-/CONT4
TR–
TR+
CAM–
CAM+
+5V
PHOTO
DISC
CLAMP
TRAY_SW1
TRAY_SW2
D_GND
CD_RES
TRAY_SW2
PHOTO
D_GND
+5V
A_+5V
+B4
+B8
+B8
CONT1
0.82μH
CD
DIGITAL SIGNAL PROCESSOR
LC78648E
IC1
MOT_A+/CONT5
MO_B+/CONT3
MO_B-/CONT2
SLDO
SPDO
FDO
TDO
XIN
XOUT
DRF
*RES
*WRQ
DO
DI
CL
CE
FROM DISPLAY SECTION
TO MAIN SECTION
D_GND
16.9344 MHz
XL1
+B4
R-CH
AGND
L-CH
DGND
D_+5V
WRQ
DRF
CE
DO
DI
CL
CLAMP
DISC
TRAY_SW1
+8V
M
M
34
33
8
10
32
31
24
21
22
23
19
20
5
1
2
35
36
3
4
5
6
30
26
7
25
27
9
28
11
13
15
17
48
47
79 61 56 55 54
1
5
40
46
28 25
19
20
26
13
49
1
27
60
80
7
8
9
10
15
14
36
21
22 23
24
65
64
66
67
68
63
62
45
41
42
43
44
1
2
3
5
4
6
7
8
1
2
3
4
5
6
13
12
11
10
9
8
7
14
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
6
4
3
1
35 36 70
74 75
2
VCONT6
VCONT5
VREFIN
SVCC
PVCC1
VO4–
VO3+
VO3–
VO4+
PGND1
SGND
PGND2
VO1–
VO1+
VO2–
VO2+
VIN2
VIN1
VIN4
VIN3
VO6+
VO6–
VO5+
VO5–
LA6261
IC2
REV5
FWD5
REV6
FWD6
PVCC2
SLED
MOTOR
SPINDLE
MOTOR
PICKUP-IN
–
+
–
+
M
M
TRAY
MOTOR
DISC
CLAMP
TRAY SW1
TRAY SW2
MAIN CAM
MOTOR
PHOTO
INTERRUPTER
SW1A
M1A
M2A
M1
RX1
SW3
SW2
SW1
SW4
M2
Figure 4-3 BLOCK DIAGRAM (3/3)