Philips 190B5CB/00, Руководство по обслуживанию

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190B5 LCD Electrical Instructions
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D ot rate (MHz) H. F re q (KHz) M o d e R esolution V. F re q (Hz)
36.000 43.269 V E SA 640 * 480 85.008
56.250 53.674 V E SA 800 * 600 85.061
94.500 68.677 V E SA 1024 * 768 84.997
3. POW E R SUPPLY (B u y in p o w er b oar d)
3.1 S etu p t h e AC I /P at 90VAC, a dd 2.6A loa d in g to +12V O/P
an d DC O/P v olta g e is 12V +/- 1.2V, 1A loa d in g to 3.3V O/P
an d DC O/P v olta g e is 3.3V +/- 0.165V, 1.5A loa d in g to 5V
O/P an d DC O/P v olta g e is 5V +/- 0.5V (B).
3.2 Ch ec k v olta g e at 3.3V O/P s h oul d b e w it h in t h e ran g e 3.3V
+/- 0.165V.
5.0V O/P s h oul d b e w it h in t h e ran g e 5.0V +/- 0.5V.
12V O/P s h oul d b e w it h in t h e ran g e 12V +/- 1.2V (B)
4. D is p la y Adj ust m ent
A ccess to f actor y m o d e (RS232) in auto - ali g n m ent s y ste m
Th e co mm unication p rotocol s w itc h to RS232 .
4.1 A uto color a dj ust m ent (B)
App l y a 640 * 480 / 60Hz si g nal w it h 16 le v el g re y test
p attern , set b ri gh tness control at 100%, an d contrast control
at 70%. Adj ust t h e R. G. B o ff set , an d g ain to cali b rate t h e
color s m oot h l y an d 64-g re y le v el d istin g uis h a b le .
4.3 Adj ust m ent o f WH I T E -D (B)
App l y a 1280*1024 / 60Hz si g nal w it h wh ite p attern , set
b ri gh tness control at 100%, an d contrast control at 70%.
Adj ust t h e R, G, B S u b-G ain , f or t h e screen center , t h e
1931 C IE c h ro m aticit y (X, Y) co - or d inates s h all b e :
U se M inolta CA-110 f or color coor d inates an d lu m inance
c h ec k.
Luminance is > 200 Nits in the center of the
screen when brightness at 100% and
contrast set to
100%.
4.4 Adj ust m ent o f s RGB
App l y a 1280*1024/ 60Hz si g nal w it h wh ite p attern , set
b ri gh tness control at 100%, an d contrast control at 70%.
Adj ust t h e R, G, B S u b-G ain , f or t h e screen center , t h e
1931 C IE c h ro m aticit y (X, Y) co - or d inates s h all b e :
s RGB
x( center ) 0.313
±
0.008
y( center ) 0.329
±
0.008
Y nits 180
±
10
9300
°
K 6500
°
K
x ( center ) 0.283
±
0.008 0.313
±
0.008
y ( center ) 0.297
±
0.008 0.329
±
0.008
4.5 EE PROM p resettin g (B)
Af ter f inis h in g all t h e a dj ust m ent , set :B ri gh tness control t
100% C ontrast control to 70% OSD p osition at m i dd le o f
screen COLOR ADJUST to 6500K color .
4.6 Wh en a dj ust m ent is f inis h e d, m onitor s h oul d b e set to
6500K color .