Display Test; Contrast Control - GE MAC 1200 Service Manual

Display Test

Contrast Control

Revision D
System Test Function: Display Test
After pressing the 1 key, the following menu appears.
Key Test Performed
1 Test pattern
2 Clear display
3 Restore menu
4 Display illumination
Contrast control
Shift + Cursor_Down

Shift + Cursor_Up

Terminate with any key.
Pressing any other key than one of those listed in the menu above leads back to the
initial display menu.
The contrast setting can always be adjusted as described above (cursor keys).
MAC 1200 resting ECG analysis system
2012250-095
Table 2. Display Test
Function
Pressing this key generates a vertical stripe
pattern. Each subsequent pressing generates the
inverse display of its predecessor.
All display pixels are inactive.
The initial display test menu is displayed.
The illumination is switched on or off by pressing
this key.
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