5-2 Function and Performance Checking Method
5.3 General Exam
5.3.1 Check Flow
Check the control
panel
Check the monitor
Check the touch
panel
Check DVD-R/W
Check peripherals
Check I/O ports
Check ECG module
5.3.2 Checking Content
5.3.2.1 Check Control Panel
Procedure Checking Standard
Check all buttons, 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
cursor responds sensitively, the rotation
direction is the same as the direction of
the cursor.