122 TroubleshootingEnterprise Edge Feature Programming Telephone Guide P0908510 Issue 02Testing the telephone displayUse a display test if you suspect that one of the indicators on the telephone is notworking.1. Press ƒ°‚fi. The display reads Display test.2. Press TEST or ˙ to go ahead with a display test.3. Adjust the contrast for the telephone display so you are able to see the testresults clearly. Enter a number to change the contrast or press DOWN and UP.4. Press OK or ˙ to go ahead with the test.During the test, the display should be filled with solid, dark blocks and all theindicators next to the buttons on the telephone should be turned on. Any Busy LampField (BLF) or CAP modules that are attached to the telephone should becompletely lit. You lose any information that was showing on the BLF before thetest started.Pressing any button ends the test.Testing the telephone buttons1. Press ƒ°‚fi, then £ or NEXT.2. Press TEST or ˙ to go ahead with a button test.3. Press button to see its function. If the button you pressed uses an indicator, itshould turn on when you test the button.4. Pressing the ® button puts Rls button on the display briefly and returns youto the Button test display.Testing the speaker in the telephone handsetThe handset test is not available if you have a headset plugged into the telephone.1. Press ƒ°‚fi, then £ or NEXT twice. The display reads Handset test.2. Press TEST or ˙ to go ahead with a handset test.3. Pick up the handset and listen. You should hear dial tone through the handsetat a maximum volume. The volume is reset to maximum only while the test isgoing on.Pressing any button or hanging up ends the test.