Nortel Networks IP Phone 1100 manual Display Diagnostics menu, Full Contrast

20Chapter 2 Introduction

Display Diagnostics menu

Use the Up/Down navigation keys on your IP Phone to scroll the diagnostics menu and to access the following diagnostic operations for your IP Phone and expansion module.

•Full Contrast

•LED Test

•Character Test

Instructions are displayed in the LCDs of the IP Phone and the expansion module. The line/feature key display areas are blank.

Full Contrast

The IP Phone and the expansion module display areas are set to maximum (dark) contrast, including the line/feature key areas. All LEDs are off.

LED Test

The IP Phone and the expansion module LEDs are set to on. The display areas clear, including the line/feature key display areas.

Character Test

The IP Phone and the expansion module LEDs are set to off. The available character set is displayed across all writable areas of the display, including the line/feature key display areas. The telephone on-hook icon is displayed for all line/feature keys.

Table 4 on page 20 shows the diagnostic operation on the IP Phone and the expansion module.

Table 4 Display diagnostic operation on the IP Phone and the expansion module

Diagnostic step	IP Phone line/feature key LCD	Expansion module LCD
Initial screen	Blank	Blank
Full Contrast	Set to highest contrast	Set to highest contrast
LED Test	Blank	Blank
Character Test	Characters appear across the	Characters appear across the display
	display areas and the telephone	areas and the telephone on-hook icon
	on-hook icon is displayed.	is displayed.

NN40050-118