Before powering on, you should carefully check whether the connection line is normal, and you must ensure that all interfaces are connected normally. Common fault judgment and processing methods are as follows:
1: No image after connecting PC and LCD-TV, projector
First, make sure that the cable itself is fine, whether the source of LCD-TV and projector is in HDMI state, and whether the signal output by the PC is a mode supported by the back-end display device (some display devices do not support the high-resolution mode of VGA output, it is recommended that PC The output is first set to 1024X768/60HZ), if it is a laptop, determine whether to switch to the external display state.
2: After connecting the LCD-TV, there are black borders on the top and bottom of the screen
Generally, the resolution of the PC output does not match the optimal display mode of the LCD-TV
3: If the refresh rate is too high, the screen will flicker, and the resolution must be re-adjusted.
4: Note. If the voltage is too high, it will burn out the protection circuit of the chip, making the host unusable.
5: Reasons for no power
First check whether the power plug is correctly inserted into the power outlet. Then check whether the power is turned on
6: After connecting to the TV, the display does not appear, or the screen shifts?
Because there are many VGA manufacturers and drivers, some of the resolution output of some graphics cards cannot meet the standard. We recommend re-selecting other graphics card resolutions based on our listed resolutions.
7: How to adjust the VGA output resolution?
Win7 - Right-click on the desktop and select "Screen Resolution".
XP - Right-click on the desktop, select "Properties" - "Settings".
8: After the notebook is connected, it cannot be displayed normally?
When the notebook is powered on and detects that the VGA output is not connected, it will automatically turn off the VGA output to save power. We need to activate the VGA output. generally
XP - right click on the desktop - properties - settings. Select the second monitor, set the output.
WIN7 - Right-click on the desktop, select "Screen Resolution" to detect, and set the output.
Notebooks generally have shortcut keys for VGA output (FN+F1~F12 graphic logos), such as FN+F7 for IBM.
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