Sharp VL-A111UL Service Manual - Page 45

Lens Drive Block Diagram

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7-5. LENS DRIVE BLOCK DIAGRAM VL-A111U/AH131U VL-AH151U/AH161U ZOOM LENS IC1 CCD SENSOR MASTER LENS MASTER LENS POSI IC101 CDS AGC IC151 A/D IC401 42 DSP 49 41 DATA 48 IC706 SYSTEM CONTROL LENS DATA2 CS 2 12 DATA CLK 34 IRIS, FOCUS, ZOOM CONTROL 124 10 160 IRIS METER IC553 M 4.9V OP-AMP (DRIVE (+)) 7 6 IC552 3 H (HALL IN (+)) 14 OP-AMP 8 (HALL IN (-)) 13 DEVICE IC551 LENS DRIVER (PHIRF) 21 22 17 20 19 18 (HALL OFFSET) 6 (IRIS OFFSET) 5 (IRIS L )4 (IRIS H )3 IC102 D/A (HALL OUT) ZOOM LENS POSI FOCUS MOTOR M (FO2-) 16 (FO2+) 14 (FO1+) 10 (FO1-) 12 FOCUS MOTOR DRIVE 35 (CLK) 34 (DATA) 33 (LATCH) 32 (VD) (PHIRZ) ZOOM MOTOR M (ZO1+) 28 (ZO1-) 30 (ZO2+) 26 (ZO2-) 24 ZOOM MOTOR DRIVE 45

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45
VL-A111U/AH131U
VL-AH151U/AH161U
7-5. LENS DRIVE BLOCK DIAGRAM
IC1
CCD SENSOR
42
49
IC401
DSP
41
48
IC706
DATA
SYSTEM CONTROL
160
21
22
20
19
2
12
3
4
6
17
18
5
4
3
IC102
D/A
4.9V
(PHIRF)
(HALL OFFSET)
(HALL IN (–))
(DRIVE (+))
(IRIS OFFSET)
(IRIS L
)
(IRIS H
)
IC151
A/D
IC101
CDS
AGC
ZOOM LENS
MASTER LENS
IRIS
METER
DEVICE
M
IC551
LENS DRIVER
(FO2+)
(FO2-)
(FO1+)
(FO1-)
M
FOCUS
MOTOR
MASTER
LENS
POSI
ZOOM
LENS
POSI
ZOOM
MOTOR
M
(ZO1+)
(ZO1-)
(ZO2+)
(ZO2-)
16
14
10
12
(CLK)
(DATA)
35
34
(LATCH)
(VD)
33
32
ZOOM MOTOR
DRIVE
(PHIRZ)
(HALL OUT)
28
30
26
24
IRIS, FOCUS, ZOOM CONTROL
LENS
DATA2
DATA
CLK
CS
(HALL IN (+))
FOCUS MOTOR
DRIVE
124
10
IC553
OP-AMP
6
7
IC552
OP-AMP
8
3
13
14
H