Acer AM501, Service Manual

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15
4.10 Visual Characteristics
All factory preset resolutions must guarantee the right display dimension and centering. Other
resolutions can be adjusted correctly with the external controls as per section 2.5.
In all resolution must be possible to adjust the monitor in full screen (overscan mode) by external
controls. The viewing eye angle while performing any dimensional measurement is parallel to the axis of
the picture tube.
4.10.1 Test Conditions
Resolution: any of preset modes
Input level: 700 mV
Pattern: crosshatch after setting full white pattern with
20FL luminance.(Except otherwise indicated)
Brightness control: cutoff position
Contrast control: position after setting full white pattern with 20FL luminance.
Unless otherwise specified, the display shall meet the requirements of this section under any
combination of the following operating ranges:
Image duty cycle: 10% to 90%
Input power: As per section 3.1
Operating temperature: As per section 6.2
Humidity: As per section 6.2
Magnetic field: Horizontal=0 Gauss
Vertical=0.4 Gauss
4.10.2 Display Dimensions
The dimensions of the data area for all presetting mode listed in part 2.3.1,measured along the
horizontal and vertical axes of the screen, shall be as follows:
Horizontal=260
±
2.5mm
Vertical=195
±
2mm
The external control ranges of the data area, shall be as follows:
Maximum horizontal size: overscan the screen
Minimum horizontal size:
≦
250mm
Maximum vertical size: overscan the screen
Minimum vertical size: 175.5mm