Lens Drive Block Diagram - Sharp VL-A10U Service Manual

VL-H875T
VL-H890T

7-5. LENS DRIVE BLOCK DIAGRAM

IC1
CCD SENSER
ZOOM LENS MASTER LENS
Master
Lens
POSI
FOCUS
MOTOR
M
ZOOM
LENS
POSI
ZOOM
MOTOR
M
IC101
IC151
CDS
A/D
AGC
IRIS
IC553
METER
4.9V OP-AMP
M
(DRIVE (+)) 7
IC552
OP-AMP
(HALL IN (+))
H 14
(HALL IN (–))
13
Device
IC551 LENS DRIVER
(FO2-)
16
(FO2+) FOCUS MOTOR
14
DRIVE
(FO1+)
10
(FO1-)
12
(ZO1+) 28
(ZO1-) 30
ZOOM MOTOR
DRIVE
26
(ZO2+)
(ZO2-) 24
42 41 DATA
IC401
DSP
49 48
LENS
DATA2
(PHIRF) 17
(HALL OFFSET) 6
6
(IRIS OFFSET) 5
(IRIS L )
4
(IRIS H ) 3
3
(HALL OUT)
8
35 (CLK)
(DATA)
34
33 (LATCH)
(VD)
32
(PHIRZ)
43
VL-A10U/UC/UA/UW/T/K
VL-AH30U/UC/T
IC706 SYSCON
DATA IRIS, FOCUS, ZOOM CONTROL
CS CLK
2 12 3 4 124 10
21 22 20 19
18
IC102
D/A
160