Display Segment Test; Functional Block Diagram / Description; Functional Block Diagram - KERN 440...N Service Manual

4 Display Segment Test

Whenever the scale is power on, all segments of the LCD will be turn on for approx.
5 seconds. Check for any missing segment.

5 Functional Block Diagram / Description

5.1 Functional Block Diagram

Keyboard
Battery
or
Adaptor
Load cell
(Sensor)
440...N-SH-e-0840
L C D
Power control /
Regulator &
Low battery
detector
Amplifier
External
Computer /
Printer
RS232 Serial
Interface
Microprocessor
digital signal
A/D Converter
analog
signal
5