Canon EOS 50 E - 2.2 Electronic Circuitry and Power Source

Part 2: Technical Information
2.2 Electronic Circuitry and Power Source
1) Overview
Table 2-11 Components
Toe EOS 828's electronic circuitry centers on the main CPU
and consists of 14 LSis and ICs, quartz oscillators, display ele-
ments, and other components.
Except for the exposure metering and some interface func-
tions, most operations are digital. AF calculations and camera
sequencing are controlled by a rapid 16MHz clock.
AEIC
Motor-Driver --------,
Operational Switches 1---------,~
Orientation Switches
AF llluminator
1st Shutter Curtain
DATE
Module
MPU
Flash Board
Unit
EFIC
LSI, IC
Motors
Magnets
Displays
Emmiters
Sensors
AF BASIS
Y(EYE)
BASIS
EEPROM
Electronic
14
1
2
2
19
5
Dedicated
S eedlite
Mount Interface ____ _
2nd Shutter Curtain
Buzzer
Operational Switches
Top-deck LCD
Viewfinder LCD
Remote Receiver IC
Remote Control Transmitter
LCD
Driver
To Circuits
Battery
2CR5(6.0 V)
Fig. 2-23 Block Diagram
2-29
Film Transport
Photoreflector
Red-eye Reduction
Lamp
Y-LED
Driver
Viewfinder LED
Superimpose
LED
EF Lens