Philips 107T50/00 Service Manual page 57

17" auto scan colour monitor chassis:v30
Table of Contents

Advertisement

El] cc
iq Go to cover page
General Troubleshooting Guide
General Troubleshooting Guide
Es
l¢¢ Go to cover page
o)
: Moiris a natural effect or phenomenon of CRT that has the appearance of a wavy pattern
which is repetitive and superimposed on the screen as ripple images. , not just Philips monitor had.
The moire level on the screen can be reduced.
:
YES
MOIR3
A fringe pattern arising from the interference between two superimposed line patterns.
In a monitor it comes from the interference between the shadow mask pattern
and the video information (video moir:, and between the shadow mask
and the horizontal line pattern (scan moir.. It shows itself as wavy pattems
on the screen and becomes more noticeable as monitor resolution increases.
Since the video signals varies continuously, little can be done about video moir:
Scan moir.depends on the horizontal scanning frequency and can be alleviated
by appropriate choice of this frequency. Autoscan (MultiSync) monitors, however,
which operate over a range of scanning frequencies,
may sometimes exhibit moir:in certain video modes.
Several sources can act as a catalyzer to produce Moire. They are : The CRT,
shadow mask, the electron beam spot size, the resolution, video patterns,
and the horizontal and vertical size.

Advertisement

Table of Contents
loading

This manual is also suitable for:

107t51/00

Table of Contents