Viewsonic VP191 ユーザーズマニュアル

Setting the timing mode is important for maximizing the quality of the 
screen image and minimizing eye strain. The timing mode consists of the 
resolution 

(example 1280 x 1024) and refresh rate (or vertical frequency; 

example 75 Hz). After setting the timing mode, use the OnView

®

 controls 

to adjust the screen image. 
For the best picture quality set your 

LCD display timing mode to: 

VESA 1280 x 1024 @ 60Hz.
To set the Timing Mode:

Set the resolution: Right-click on the Windows desktop > Properties > 
Settings

 > set the resolution.

Set the refresh rate: See your graphic card's user guide for instructions.

Do not set the graphics card in your computer to exceed the 

maximum refresh rate of 75Hz; doing so may result in permanent damage to 
your 

LCD display .

• OSD Lock: Press and hold [1] and the up arrow 

▲

 for 10 seconds. If any 

buttons are pressed the message OSD Locked will display for 5 seconds.

• OSD Unlock: Press and hold [1] and the up arrow 

▲

 again for 10 seconds.

• Power Button Lock: Press and hold [1] and the down arrow 

▼

 for 10 

seconds. If the power button is pressed the message Power Button Locked 
will display for 5 seconds. With or without this setting, after a power failure, 
your 

LCD display’s power will automatically turn ON when power is 

restored.

 Press and hold [1] and the down arrow 

▼

 again for 10 

seconds.

ViewSonic        VP191/VP191b/VP191s        7