ViewSonic VA902B Service Manual - Page 24

Burn-in pattern, Auto Color Automatically calibrate chip ADC parameter by using chip internal DAC - no signal

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3.3 Power lock Menu function Power Lock Menu Function Check Item Method Activate Power Lock [1] + [▼] 10S Phenomenon Can not turn off the LCD; Press the power button will appear "Power Button Locked" OSD 3s; LCD would automatically turn back "On" when power is restored after a power failure Deactivate Power Lock [1] + [▼] 10S(again) NOTICE: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate "Power Button Locked" Power should only be lockable in the "On State" 3.4 Resolution notice function Item Activate Notice Menu Resolution Notice Menu Method Resolution Notice OSD should show Resolution on screen after changing to non-native mode for 30 sec, And it should disappear after 10s or by pushing button [1] or [2] Phenomenon ------ Deactivate Push button [2] under Resolution Resolution Notice Menu Notice OSD, select Disable ------- 3.5 Factory Mode Introduction When input the signal, press "power key" to turn off the monitor. Press at the same time so as to enter factory mode. After power on, press ''Menu[1]'' key, you can see the Factory menu. INL V2 050526 Auto Color Color Temperature : Currently using panel model name : Currently using firmware version information. : Automatically calibrate chip ADC parameter by using chip internal DAC : The R, G, B of 9300K and 6500K and 5400K and User Mode Colors are all generated from scaling back end. 4. Burn-in pattern If it is a new monitor, and in factory mode, if no VGA signal input, Burn-in pattern will self generate automatically. Burn in patterns are: full Red, Green, Blue, White and Black. You can not escape from Burn-in pattern until plug in VGA Cable, and then press the power key. Turn the monitor off and then turn it on. 5. Auto Color (Automatically calibrate chip ADC parameter by using chip internal DAC) If it is a new-built set and it is first time to do the "auto color", please confirm the following steps: -Connect the VGA cable with the standard video pattern generator and display 16-gray pattern on the monitor. - Press "Power" to power off the monitor. - Press simultaneously to enter factory mode. - Press ''Menu[1]'', then press ''Auto[2]'' to execute Auto color item. - After the "Auto Color" process finished, please press "Power" to restart monitor. ViewSonic Corporation Confidential - Do Not Copy VA902/b 21

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3.3 Power lock Menu function
Power Lock Menu Function Check
Item
Method
Phenomenon
Activate Power Lock
[1] + [
▼
] 10S
Can not turn off the LCD;
Press the power button will appear
"Power Button Locked" OSD 3s;
LCD would automatically turn back
"On" when power is restored after a
power failure
Deactivate Power Lock
[1] + [
▼
] 10S(again)
NOTICE:
Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate “Power
Button Locked”
Power should only be lockable in the “On State”
3.4 Resolution notice function
Resolution Notice Menu
Item
Method
Phenomenon
Activate
Resolution
Notice Menu
Resolution Notice OSD should show
on screen after changing to non-native
mode for 30 sec,
And it should disappear after 10s
or by pushing button [1] or [2]
------
Deactivate
Resolution Notice Menu
Push
button
[2]
under
Resolution
Notice OSD, select Disable
-------
3.5 Factory Mode Introduction
When input the signal, press “power key” to turn off the monitor. Press”
[
▼
] +[
▲
] +[
]
“at the same time so as to
enter factory mode. After power on, press ‘’Menu[1]’’ key, you can see the Factory menu.
INL
: Currently using panel model name
V2 050526
: Currently using firmware version information.
Auto Color
: Automatically calibrate chip ADC parameter by using chip internal DAC
Color Temperature
: The R, G, B of 9300K and 6500K and 5400K and User Mode
Colors are all generated from scaling back end.
4. Burn-in pattern
If it is a new monitor, and in factory mode, if no VGA signal input, Burn-in pattern will self generate automatically. Burn
in patterns are: full Red, Green, Blue, White and Black. You can not escape from Burn-in pattern until plug in VGA Cable,
and then press the power key. Turn the monitor off and then turn it on.
5. Auto Color (Automatically calibrate chip ADC parameter by using chip internal DAC)
If it is a new-built set and it is first time to do the “auto color”, please confirm the following steps:
-Connect the VGA cable with the standard video pattern generator and display 16-gray pattern on the monitor.
- Press “Power” to power off the monitor.
- Press”
[
▼
] +[
▲
] +[
]
“simultaneously to enter factory mode.
- Press ‘’Menu[1]’’, then press ‘’Auto[2]’’ to execute Auto color item.
- After the “Auto Color” process finished, please press “Power” to restart monitor.
21
ViewSonic Corporation
Co
nfidential - Do Not Copy
VA902/b