Dell Daily Deal E1909W Руководство по эксплуатации - Страница 35
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Service Manual
5. Backlight on, key function and LED accurate indication ok but no
picture
Backlight on , key function and LED
accurate indication ok but no picture
IS the display is white and cannot
display OSD when press key?
Is display selftest picture at
VGA mode or DVI mode?
Is there DVI signal in U105 #9,
#10,#12,#13,#15,#16,#18 #19?
Change D202, D203, D204,
D205, D206, D207, D208,
D209
YES
YES
NO
VGA
DVI
YES
34
Check DC 5.0V on
CN101#1, #2
Is there RGB signal in
U105 #28, #25 #23?
Yes
Are there data output on
U105#77~#86
#91~#100
No
Change U105
END
NO
Is the panel enable
signal at 73# of
U105,if no check
Q104 circuit or change
U105,if yes Check
Q101 circuit
NO
Change D103,
D104 & D105
YES
Is the FFC cable
inserting ok,if no
reinsert else
change FFC cable