High Voltage Regulation; Blinking Image; Settling Time - Nokia 445PRO Service Manual

6.14 High voltage regulation

With a full load white field, at nominal input power supply voltage, brightness at minimum, from the
minimum to maximum contrast settings, the size shall not change more than 0,5 % .

6.15 Blinking image

Image motion shall be defined as the displacement of the active display when changed from a no
load pattern to a full load pattern at a 1.0 Hertz rate.
The change in position between full load and no load displays is measured at the edge along the
center points on the top, bottom, left --- and right ---hand edges.
The maximum change in position at any of the measurement points must be less than 0,5 mm /
edge.
Character distortion (tilting, bending, etc) shall not be noticeable for any text or graphic combination.
6.16 External magnetic field
When this colour monitor is placed at a distance of 30 cm, from another monitor with equal or lower
magnetic leakage fields, the colour monitor will fulfill all the requirements stated under clause 8
(image performance) even if the monitors are working with different timings.

6.17 Settling time

When a new timing mode has been initiated, the monitor will automatically adjust the image perfor-
mance to meet the requirements of this specification with a settling time < 2 s.
During the settling time the display will be blank, showing no distorted or zooming picture.
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