Planar Systems PXL2230MW 21.5" 16:9 Touchscreen LCD Monitor - Manual (Page 19)

17
Troubleshooting
No power

Make sure A/C power cord is securely connected to the power adapter and the power
supply is firmly connected to the TFT Touchscreen LED LCD monitor.

Plug another electrical device into the power outlet to verify that the outlet is supplying
proper voltage.

Make sure all signal cables are installed.
Power on but no screen image

Make sure the video cable supplied with the TFT Touchscreen LED LCD monitor is tightly
secured to the video output port on back of the computer. If not, tightly secure it.

Adjust brightness.
Wrong or abnormal colors

If any colors (red, green, blue) are missing, check the video cable to make sure it is securely
connected. Loose or broken pins in the cable connector could cause an improper
connection.

Connect the TFT Touchscreen LED LCD monitor to another computer.