8.1 TroubleshootingMonitor display (lobby station images)Problem Cause & Solution PageImages appear distorted. R Images may appear distorted because of the characteristics of thecamera lens. This is not a malfunction. –The image of the subjectis displayed in black andwhite (or bluish-purple).R At night or when there is poor light in the area around the lobby station,the image of the subject may be displayed in black and white (orbluish-purple).– The lobby station's LED lights may be turned off.Turn on the LED lights when it is dark.9The background appearsgreenish.R At night or when there is poor light in the area around the lobby station,lights or white objects near the lobby station may appear greenish. Thisis not a malfunction.–Images at night are darkand faces cannot beidentified.R Even when the lobby station's LED lights are lit, because the light fromthe LED lights cannot illuminate the edges of the visible area (the areasdirectly next to the lobby station), faces of people may not beidentifiable even when they are close to the lobby station.→ We recommend installing extra lights in the area around the lobbystation.–The images of people'sfaces are dark.R Images of people's faces appear dark when there is strong sunlight ora backlight in the area around the lobby station.→ Use the backlight compensation function.9Images are dirty orunclear.R Images are not infocus.R There is dirt on the surface of the lobby station's lens.→ Wipe the lens with a soft, dry cloth. 15R There is water condensation on the surface of the lobby station's lens.→ Wait for the condensation to evaporate. –Images are white orblack.R The brightness of the display is not correctly adjusted.→ Adjust the brightness when images are displayed. 9Images are white, orwhite lines or circles areshown on the display.R Strong light such as sunlight is shining into the lens of the lobby stationcausing images to be difficult to see on the display. (This is not amalfunction.)→ Locating the lobby station away from direct sunlight or changingthe angle that the lobby station is installed may help reduce thisproblem.–There is a small black dotin the background.R If the sun can be seen, its centre appears as a black dot. This is not amalfunction. –Images are flickering. R AC (alternating current) lights such as fluorescent lights are used nearthe lobby station.→ AC (alternating current) lights such as fluorescent lights may causeflickering in dark environments. (This is not a malfunction.)–RingtoneProblem Cause & Solution PageThe ringtone for the lobbystation does not sound.R The ringtone volume is muted.→ Activate the sound for the ringtone. 11168. . Troubleshooting8. Troubleshooting