ViewSonic VA1912W Service Manual page 10

2.6 FRONT PANEL CONTROLS AND INDICATORS
Front Panel Hardware Controls
Power Switch (Front Head)
Power LED (Front Head)
Front Panel Controls (Head)
[ X] [ 1 ] [▼] [▲] [ 2 ] [ ]
Reaction Time
Short Cuts Function from the button(s)
[1]
[2]
[▼] or [▲]
[▼] + [▲]
[1] + [2]
[1] + [▼] + [▲]
[1] + [▼]
[1] + [▲]
[ X]
Remark : All the short cuts function are only available while OSD off
Function descriptions
OSD Lock short cuts function for the buttons
The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)" for 10 seconds. If the user
then tries to access the OSD by pressing any of the buttons "1", "▼", "▲", "2" a message will appear on the screen
for 3 seconds showing "OSD Locked". The OSD lock will be deactivated by pressing the front panel control
buttons "(1), & (▲)" again for 10 seconds.
Note1: When the OSD is locked will lock all functions, including "Volume" and "Mute"
Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate "OSD
Locked"
Note 3: OSD Lock should not lock Power Button and Power Lock function
Power Lock short cuts function for the buttons
The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for 10 seconds.
Locking the power button means that the user won't be able to turn off the LCD while the power button is locked.
If the user presses the power button while it is locked, a message will appear on the screen for 3 seconds showing
"Power Button Locked". It also means that with the power button locked, the LCD would automatically turn back
"On" when power is restored after a power failure. If the power button is not in the locked mode, then power
should return to it's previous state when power is restored after a power failure. The power button lock will be
deactivated by pressing the front panel control buttons "(1), & (▼)" again for 10 seconds.
Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate
"Power Button Locked"
Note 2: Power should only be lockable in the "On State"
ViewSonic Corporation
Power Control, soft Power Switch.
Green – ON
Orange – Active Off
Dark = Soft Power Switch OFF
[ ] Power
[ 1 ] Button 1
[ 2 ] Button 2
[▲] Up arrow button
[▼] Down arrow button
[ X] AUDIO MUTE ON/OFF
Note: Power Button, Button 1 and Button 2 and Mute
Button must be one-shot logic operation. (i.e. there should
be no cycling)
OSD must fully appear within 0.5s after pushing Button 1
Main Menu
Input toggle (Analog or Digital)
To immediately activate Contrast menu. It should be change to Brightness
OSD by push button [2]
Recall both of Contrast and Brightness to default
Toggle 720x400 and 640x400 mode when input 720x400 or 640x400
mode
White Balance. (Not shown on user's guide)
Power Lock
OSD Lock
Audio Mute on /off
7
Confidential - Do Not Copy
VA1912W/Wb