AOC Comprehensive Troubleshooting Guide for D2757PH Car Video System

Troubleshoot

Problem & Question	Possible Solutions
Power LED Is Not ON	Make sure the power button is ON and the Power Cord is properly connected
	to a grounded power outlet and to the monitor.
	Is the power cord connected properly?
	Check the power cord connection and power supply.
	Is the cable connected correctly?
	(Connected using the D-sub cable)
	Check the DB-15 cable connection.
	(Connected using the DVI cable)
	Check the DVI cable connection.
	* DVI input is not available on every model.
	If the power is on, reboot the computer to see the initial screen (the login
	screen), which can be seen.
No images on the screen	If the initial screen (the login screen) appears, boot the computer in the
	applicable mode (the safe mode for Windows ME/XP/2000) and then change
	the frequency of the video card.
	(Refer to the Setting the Optimal Resolution)
	If the initial screen (the login screen) does not appear, contact the Service
	Center or your dealer.
	Can you see "Input Not Supported" on the screen?
	You can see this message when the signal from the video card exceeds the
	maximum resolution and frequency that the monitor can handle properly.
	Adjust the maximum resolution and frequency that the monitor can handle
	properly.
	Make sure the AOC Monitor Drivers are installed.
	Adjust the Contrast and Brightness Controls.
Picture Is Fuzzy & Has	Press to auto adjust.
	Make sure you are not using an extension cable or switch box. We
Ghosting Shadowing Problem
	recommend plugging the monitor directly to the video card output connector
	on the back .
Picture Bounces, Flickers Or	Move electrical devices that may cause electrical interference as far away
	from the monitor as possible.
Wave Pattern Appears In The
	Use the maximum refresh rate your monitor is capable of at the resolution
Picture
	your are using.
	The Computer Power Switch should be in the ON position.
	The Computer Video Card should be snugly fitted in its slot.
Monitor Is Stuck In Active	Make sure the monitor's video cable is properly connected to the computer.
	Inspect the monitor's video cable and make sure no pin is bent.
Off-Mode"
	Make sure your 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 no pin is damaged.
colors (RED, GREEN, or
	Make sure the monitor's video cable is properly connected to the computer.
BLUE)
Screen image is not centered	Adjust H-Position and V-Position or press hot-key (AUTO).
or sized properly
Picture has color defects	Adjust RGB color or select desired color temperature.
(white does not look white)
Horizontal or vertical	Use Windows 95/98/2000/ME/XP shut-down mode Adjust CLOCK and
	FOCUS.
disturbances on the screen
	Press to auto-adjust.

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