ViewSonic TD2240, User Manual

7

Using the LCD Display

Setting the Timing Mode

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 

1024 x 768) and 

refresh rate

 (or vertical frequency; example 60 Hz). After setting 

the timing mode, use the OSD (On-screen Display) controls to adjust the screen 

image.

For optimal picture quality, please use the recommended timing mode specific to 

your LCD display listed on the “Specification” page.

To set the Timing Mode:

• 

Setting the resolution:

 Access "Appearance and Personalization" from Control 

Panel via the Start Menu, and set the resolution.

• 

Setting the refresh rate:

 See your graphic card’s user guide for instructions.

IMPORTANT: 

Please make sure that your graphics card is set to 60Hz vertical 

refresh rate as the recommended setting for most LCD displays. Choosing a non-

supported timing mode setting may result in no image being displayed, and a 

message showing “Out of Range” will appear on screen.

OSD and Power Lock Settings

• 

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 3 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 3 seconds. With or without this setting, after a power failure, your LCD 

display’s power will automatically turn ON when power is restored.

• 

Power Button Unlock:

 Press and hold [1] and the down arrow ▼ again for 10 

seconds.