User Guide

PAMS
UIF Module DU8
NHB–3
Technical Documentation
Original 26/97
Page 5–4
Figure 1. Flexi Outline
1
30
DU8C Style Flexi
Electronics
The following sections of circuitry are on the flexi:
– Microphone Circuit
– Speaker Circuit
– LCD Display Module
– LCD voltage divider & temperature compensation circuit
– Keyboard & Display lighting circuits
– Keyboard switch matrix
– SIM Card Reader