Linearity - NEC FP1355 Service Manual

High resolution display monitor
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No.
9.
Distortion
Must be within the following frame.
(Note, excluding ROTATION)
x
10.
Picture position
Display picture
Phosphors surface
2.5.1.9

Linearity

Measure the linearity with a 17 horizontal line x 13 vertical line crosshatch.
Horizontal linearity : fH=30-40kHz
Vertical linearity
Calculation expression : (Xmax - Xmin)
* If any doubts arise about the judgment, judge with the horizontal/vertical width tolerance
of ±3mm, picture position: |L1-L2|≤3.0mm and |L3-L4|≤3.0mm.
Item
y
x
y
Specified H width
L3
L1
L4
fH=40-60kHz
fH=60-130kHz whole : 10% or less, adjacent : 7% or less
:
(Xmax + Xmin)/2
L2
Specified
V width
whole : 15% or less, adjacent : 7% or less
whole : 12% or less, adjacent : 7% or less
whole : 10% or less, adjacent : 7% or less
x 100(%)
2 - 28
Judgement reference value
Input signal
y
2.0mm
Crosshatch
x
2.0mm
pattern
|L1-L2| 5.0mm
|L3-L4| 3.0mm
Full white

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