IBM T86A - Manual (Page 27)

16
The image is already optimized for many display modes, however the user
controls can be used to adjust the image to your liking.
The settings are saved after adjustment and when exiting the OSD, and will
be effective thereafter
.
CONTROLS LOCK / UNLOCK
This feature allows you to secure the current control settings, so that they
cannot be inadvertently changed. Note: This does not include brightness and
contrast.
Push and hold the enter button [
] for 10 seconds; the message “Controls
Locked” appears.
You can unlock the OSD controls at any time by pushing the enter button [
]
for 10 seconds; the message “Controls Unlocked” will appear.