5-2 Function and Performance Checking Method
5.3 General exam
5.3.1 Check Flow
Control panel
Display
DVD-R/W
Peripheral devices
I/O ports
5.3.2 Checking Content
5.3.2.1 Check Control Panel
Check the functions of all keys and knobs
Follow the direction: left to right, and up to down.
All keys and knobs are effective.
Function checking of the trackball
Press the <Freeze> key to enter the Freeze
status.
Press <Measure> to enter into measure
status, do vertical and horizontal
measurement, or do other trackball
operations.
The trackball can be rotated easily and
smoothly, the cursor responds sensitively, the
rotation direction is the same as the direction of
the cursor.
5.3.2.2 Check the Display
Adjust LCD brightness
Adjust LCD contrast
Display color temperature
adjustment
Click “Cold” or “Warm” in the
[General] page in System Preset
screen.
Press “<Fn>+< >”, the brightness increases; and press
“<Fn>+< >”, the brightness decreases.
Press “<Fn>+< >”, the contrast increases; and press
“<Fn>+< >”, the contrast decreases.
The LCD color temperature changes correspondingly.
Click each functional button, the LCD responds correctly,
the standard is as follows