Envision EN9110, Руководство по обслуживанию

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II. (B) The screen had the Vertical Straight Line, may be stuck in Red, Green or Blue
That symptom is cause by bad Panel issue (might be the Source IC from Panel is cold
soldered or open looped) so replace the panel and try it.
III.ALL SCREEN HAS INTERFERENCES OR NOISE, CAN’T BE FIXED BY AUTO KEY
** NOTE:
There are so many kinds of interferences,
1). One is caused by some VGA-CARD that not meet VESA spec or power grounding too
bad that influence the circuit.
2). Other is cause by external interferences, move the monitor far from electronic
equipment. (Rarely happened)
Use DOT-pattern, or win98/99 shutdown
mode pattern, press
“
AUTO
”
key, was the
interferences disappear??
Adjust
“
FOCUS
”
step by step, until the
horizontal interferences disappear
Does your signal-cable have an additional
cable for extension??
END
END
Put away the additional cable
May be the additional cable grounding is
not quite good.
Does your noise only exist in one mode only?
(Ex: only at 1280x1024 @ 85 Hz, other is normal)
OK
OK
Yes, has extension
NG, interferences still exist
NG
No additional extension
cable
That was caused by you VGA-CARD setting, your VGA
card timing back porch / front porch exceed vesa timing
too far, for some new AGP-VGA-CARD such situation
always happened
So in your
control-panel icon, select monitor, setting,
advance, screen-adjust, at
Size icon,
increase step by step slowly, and press,
“
AUTO
”
key every step you increase the SIZE repeat
the procedure (increase/decrease SIZE one-step and press
AUTO) until the interferences disappear, press
“
APPLY
”
to save in your VGA
Yes, only happened on one mode
Change the Signal-cable to new one or
Try other brand VGA-CARD
(Make sure just only that brand VGA-
CARD has this problem)
NO, all mode