Operation
PCD7.D250
Page 5-10
SAIA-Burgess Electronics Ltd.
(D25-05-E.DOC)
26/770 E1
5.3.5
Display test
This is a comprehensive test of the LCD display, the character set and the
LCD controller’s internal RAM.
Press any key
to exit.
5.3.6 Keyboard
test
The display reproduces individual keys on its left-hand side and below
(arranged as on the keyboard). When a key is activated the relevant field
turns black.
Press Shift + F4
to exit the keyboard test.
5.3.7
LED test
This test allows each separate LED to be checked individually. Each
LED in sequence is turned on for 500 ms, and the display shows a “1” for
the LED which should be on:
Press any key
to end the test and return to Setup/Test mode.
LED
1
LED
2
LED
3
LED
4
LED
5
LED
6
LED
7
LED
8
