TROUBLESHOOTING
8-9
11) Adjust Back Light Threshold
This display can be used to calibrate the LCD back light
turn on and off threshold. Use the following steps to adjust
the back light threshold.
1. The “Lite = xxx” message displays the present ambient
light level incident on the face of the monitor. In a
brightly-lit room, the light reading should be above 130.
2. The user can shade the light sensor, which is located at
the upper left corner of the monitor, with their hand and
watch the light sensor reading. The light reading should
drop to less than 100. Press the [MODE] key one more
time, the display should show the message “Trip= 100”.
3. Use the [Y/+] or [N/-] key to increase or decrease the
trip value until it is 100. Press [MODE] to exit this
display. If the threshold value is changed, a message
“Save?” will appear. Press [Y/+] to confirm the change,
[N/-] or [MODE] to abandon the changes.
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