Monitorului LCD
Ave
ţ
i urm
ă
toarea problem
ă
? Verifica
ţ
i punctele men
ţ
ionate:
Pozi
ţ
ie incorect
ă
a imaginii
Monitorul identific
ă
un mod de lucru înc
ă
nesetat.
►
Executa
ţ
i autoajustarea ecranului (prin intermediul
tastei AUTO, dac
ă
exist
ă
, sau prin meniul OSD).
►
Seta
ţ
i corect pozi
ţ
ia imaginii prin intermediul
meniului OSD.
Imagine tremurat
ă
►
Verifica
ţ
i strângerea
ş
uruburilor fi
ş
elor cablului de
transmitere a datelor la mufa calculatorului.
►
Executa
ţ
i autoajustarea ecranului (prin intermediul
tastei AUTO, dac
ă
exist
ă
, sau prin meniul OSD).
Perturba
ţ
ii ale imaginii (dungi
verticale)
►
Executa
ţ
i autoajustarea ecranului (prin intermediul
tastei AUTO, dac
ă
exist
ă
, sau prin meniul OSD).
Perturba
ţ
ii ale imaginii
(dungi orizontale, granula
ţ
ie)
►
Executa
ţ
i autoajustarea ecranului (prin intermediul
tastei AUTO, dac
ă
exist
ă
, sau prin meniul OSD).
Imagine prea luminoas
ă
sau prea
întunecat
ă
►
Executa
ţ
i autoajustarea ecranului (prin intermediul
tastei AUTO, dac
ă
exist
ă
, sau prin meniul OSD).
►
Dac
ă
autoajustarea nu duce la un rezultat
mul
ţ
umitor, seta
ţ
i corect contrastul
ş
i luminozitatea
corect
ă
prin intermediul meniului OSD.
Puncte luminoase sau întunecate pe ecran
Conform nivelului actual al tehnicii de fabrica
ţ
ie, o redare a imaginii absolut lipsit
ă
de deficien
ţ
e nu
poate fi garantat
ă
. Este posibil
ă
existen
ţ
a câtorva puncte constant luminoase sau constant
întunecate pe ecran. Num
ă
rul maxim admisibil de asemenea puncte defectuoase pe ecran este
stabilit prin severul normativ interna
ţ
ional ISO 13406-2 (clasa II).
Exemplu: Un monitor plat cu dimensiunea de 17"/19“ cu rezolu
ţ
ia 1280 x 1024 are 1280 x 1024 =
1310720 elemente de imagine (pixel). Fiecare element de imagine const
ă
din trei puncte (ro
ş
u,
verde
ş
i albastru), astfel încât rezult
ă
aproape 4 milioane de puncte de ecran (subpixeli/dots).
Conform ISO 13406-2 (clasa II) se admit maximum 6 elemente de ecran -
ş
i suplimentar alte 7 -
puncte defecte, respectiv în total 25 puncte defecte.
Un monitor plat cu dimensiunea de 22" cu rezolu
ţ
ia 1680 x 1050 are 1680 x 1050 = 1764000
elemente de imagine (pixel). Fiecare element de imagine const
ă
din trei puncte (ro
ş
u, verde
ş
i
albastru), astfel încât rezult
ă
aproape 5 milioane de puncte de ecran (subpixeli/dots). Conform ISO
13406-2 (clasa II) se admit maximum 8 elemente de ecran -
ş
i suplimentar alte 10 - puncte defecte.
8 - Român
ă
Edi
ţ
ia 2
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Summary of Contents for D22W-1
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