NEC NEC MultiSync LCD1550X LCD1550X LCD1550X, Service Manual

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- 21 - Document No. VSPF-A028
Note 6: Example of “Distance between each sets of
E
” is as follows.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
: Bright dot Count Criteria
Υ
@
etc. NG
Note 7: Example of “Cluster of defect dots (
Σ
)” is as follows.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
@ @ @ @
: Bright dot
@ @ @ @
:Dark dot Count Criteria
When 2 or more defect dot (
Σ
Σ Σ
Σ
) exist in 5X5 pixels, the set of the dot
defect are counted as 1 cluster.
Φ
@
etc.
”
2 cluster
Note 8: Example of “Adjacent 2 dots (
@
,
A
)in 5X5 pixels” are as follows.
@ @ @ @
@ @ @ @ @ @ @ @
@ @ @ @
@ @ @ @
: Bright dot
@
@ @
@
:Dark dot Count Criteria
Χ
Allowed
Ψ
NG
R R
” 6.5mm
G G
” 6.5mm
”
10mm
Τ
Τ
Defect dots(
Σ
)
5X5 pixels
1 cluster
Adjacent 2 bright dots(
Ο
)
”
1set
5X5 pixels
RG
Adjacent 2 dark dots(
Π
)
”
1set
5X5 pixels
RG
Adjacent 2 bright dots(
Ο
)
•
2
sets
5X5 pixels
RG RG
Adjacent 2 dark dots(
Π
)
•
2
sets
5X5 pixels
RG RG