LG Electronics 42SH7DB Projector Accessories User Manual


 
18
ENGLISH
TROUBLESHOOTING
No image is displayed
Problem Action
Is the product power cord connected? y Check if the power cord is correctly plugged into the power
outlet.
Does the Out of range message
appear?
y The signal from the PC (video card) is out of the vertical or
horizontal frequency range of the product. Adjust the frequency
range by referring to the Specifications in this manual.
* Maximum resolution: 1920 x 1080 (60 Hz)
Does the “No Signal” message appear? y The signal cable between PC and product is not connected.
Check the signal cable.
y Press the INPUT menu in the remote Control to check the input
signal.
The Unknown Product message appears when the product is connected.
Problem Action
Did you install the driver? y Check if the Plug & Play function is supported by referring to the
video card user manual.
The screen image looks abnormal.
Problem Action
Is the screen position wrong? y Check if the video card resolution and frequency are supported
by the product. If the frequency is out of range, set to the
recommended resolution in the Control Panel Display Setting
menu.
The screen is displayed abnormally. y The proper input signal is not connected to the signal port.
Connect the signal cable that matches with the source input
signal.
After-image appears on the product.
Problem Action
After-image appears when the
product is turned off.
y If you use a fixed image for a long time, the pixels may be
damaged. Use the screen-saver function.
y When a dark image is displayed on the screen after an image
with high contrast (black and white or gray), this may cause
image sticking. This is normal for LCD screen products.