Essilor AKR 550 - Block Diagram

5
4 Block Diagram
LCD
Motor
Motor
Operation Switch
RS-232C
Interface
Focus Motor
Position Sensor
Target Motor
Position Sensor
Potentiometer
Measurement Start Switch
Main Control
Circuit Unit
EEPROM
Printer
Printer Control Circuit Unit
CMOS Camera
CMOS Camera
Ranging Sensor
Kerato LED
Target LED
Ref LED
Ranging LED
Fuse
Power Switch
Power
Inlet
Switching Supply
Basic Insulation
Reinforced Insulation
Between Primary and
Secondary
Metallic Portion with Protective Earth (Chassis)
Reinforced Insulation
LCD Relay
Circuit Unit
Headrest
Chinrest
DC 12V (SELV)
DC 5V (SELV)
AC100－240V 50/ 60Hz