Lenovo C190 manual Troubleshooting, Signal OUT, Check Signal

Troubleshooting

If you have a problem setting up or using your monitor, you may be able to solve it yourself. Before calling your retailer or Lenovo you should try the suggested actions that are appropriate to your problem.

Problem	Possible Cause	Suggested Action		Reference
Screen is blank and	No power to monitor.	•	Ensure the electrical	Connecting you
power indicator is off.			outlet and the monitor	monitor starting
			are both switched on.	on page4.
		•	Check power cord is
			firmly plugged into the
			monitor and the
			electrical outlet.
		•	If the power cord plug
			has a removable fuse,
			replace it.
		•	Try another power
			cord.
		•	Try another electrical
			outlet.
Screen is blank and	Brightness and	•	Adjust brightness and	User controls
power indicator is	Contrast may be too		contrast.	section starting
steady green.	low.			on page 10.
SIGNAL OUT OF	Display mode of the	•	Reconfigure the	Further
RANGE message is	computer is outside		computer to use a	information
displayed.	the range of the		supported display	section starting
	monitor.		mode.	on page 15.
CHECK SIGNAL	Video cable	•	Check the signal
CABLE message is	connection.		cable is firmly
displayed.			connected to the
			computer.
		•	Check no pins are
			bent in the signal
			cable connector.
Screen is blank and	The monitor is in	•	Press any key on the
power indicator is	Power Management		keyboard or move the
amber.	Standby/Suspend or		mouse to restore
	Off state.		operation.
	No video signal from	•	Check the computer is
	the computer.		powered on.
		•	Check the signal
			cable is firmly
			connected to the
			computer.
		•	Check no pins are
			bent in the signal
			cable connector.
Image appears to be	The monitor is	•	Reconfigure the	Further
flickering.	operating in an		computer to use a	information
	interlaced or low		non-interlaced display	section starting
	refresh rate display		mode with a refresh	on page 15.
	mode.		rate of at least 75 Hz.

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