Adjusting Procedure - ViewSonic VA2013wm-4 Service Manual

5. Adjustment Procedure
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 1600 x 900) 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 the best picture quality set your LCD display timing mode to:
VESA 1600 x 900 @ 60Hz.
To set the Timing Mode:
1. Set the resolution: Right-click on the Windows desktop > Properties > Settings > set the resolution.
2. Set the refresh rate: See your graphic card's user guide for instructions.
WARNING: 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 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.
5.1 White balance, Luminance adjustment
Approximately 2 Hours should be allowed for warm up before proceeding White-Balance adjustment.
Before started adjust white balance, please setting the Chroma-C7120 MEM. Channel 0 to9300K colors, MEM.
Channel 1 to 7500K colors, MEM. Channel 2 to 6500K MEM. Channel 3 to 5000K MEM. Channel 4 to sRGB
(our 9300 parameter is x=283±12, y=297±1;7500 parameter is x=299±12, y=315±12; 6500 parameter is x =313±12,
y=329±12; and 5000 parameter is x = 347 ±12, y = 349 ±12; sRGB parameter is x=313±12, y=329±12)
How to setting MEM.channel you can reference to Minolta-CA210 user guide or simple use " SC" key and " NEXT"
key to modify x, y, Y value and use "ID" key to modify the TEXT description Following is the procedure to do
white-balance adjust
Enter into Burn/in mode:
AC ON the monitor with no signal ,and press "power" button to DC OFF the monitor, then press"1" and "power"
button at the same time to enter Burn/in mode;
Enter into the factory mode:
AC ON the monitor with signal connected, and press "power" button to DC OFF the monitor, then press"1" and
"power" button at the same time to enter factory mode;
21