Hanns.G HN Series user manual Technical Support FAQ, For General Defective

User’s Manual

TECHNICAL SUPPORT (FAQ)

Q & A FOR GENERAL DEFECTIVE

PROBLEM & QUESTION	POSSIBLE SOLUTION
Power LED is not on	*Check if the Power Switch is in the ON position
	*Power Cord should be connected
	*Check if the PC system is Plug & Play compatible
No Plug & Play	*Check if the Video Card is Plug & Play compatible
	*Check if the D-15 plug pin of Video Cable is bent
Picture is fuzzy	*Adjust the Contrast and Brightness Controls.
Picture bounces or a wave	*Move electrical devices that may cause electrical
pattern is present in the
	interference.
picture
	*Computer Power Switch should be in the ON position.
	*Computer Video Card should be snugly seated in its slot
	*Make sure monitor’s video cable is properly connected
The power LED is ON	to the computer.
	*Inspect monitor’s video cable and make sure none of
(orange) but there’s no
	the pins are bent.
video or no picture.
	*Make sure computer is operational by hitting the CAPS
	LOCK key on the keyboard while observing the CAPS
	LOCK LED. The LED should either turn ON or OFF after
	hitting the CAPS LOCK key.
Missing one of the primary	*Inspect the monitor’s video cable and make sure that
colors (RED, GREEN, or
	none of the pins are bent.
BLUE)
Screen image is not centered	*Adjust pixel frequency CLOCK and FOCUS or press
or sized properly.	hot-key (AUTO)
Picture has color defects	*Adjust RGB color or select color temperature
(white does not look white)
Horizontal or vertical	*Use win 95/98/2000/NT/ME/XP shut-down mode Adjust
disturbances on the screen	CLOCK and FOCUS or perform hot- key (AUTO).

ƒCLOCK (pixel frequency) controls the number of pixels scanned by one horizontal sweep. If the frequency is not correct, the screen shows vertical stripes and the picture has not correct width.

ƒFOCUS adjusts the phase of the pixel clock signal. With a wrong phase adjustment the picture has horizontal disturbances in light picture.

ƒFor FOCUS and CLOCK adjustment use “dot-pattern” or win 95/98/2000/NT/ME/XP shut-down mode pattern.

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