JVC GM-552DU Instruction Manual - Page 31

Trouble Shooting Solutions to common problems related to the monitor are described here. If none of the solutions presentedhere solves the problem, unplug the monitor and consult an authorized dealer or service center. Symptom No power supply No picture with the power on No sound "NO SYNC" appears. Wrong color The picture becomes blurred. Buttons on the monitor do not work. Probable cause and corrective action Page • Firmly insert the AC power plug. 11 • Select the correct input with INPUT SELECT buttons. • Connect the signal cable firmly. • Turn on the power of the connected component and set the output correctly. • Check if the input signal format is acceptable on the monitor. 11,12 13,14 • Adjust the volume level. • Select MUTING OFF by AUDIO SETTING menu or Press MUTING button on REMOCON. • Connect the signal cable firmly. • Turn on the power of the connected component and set the output correctly. 15,21 • Select the correct input with INPUT SELECT buttons. 11 • Connect the signal cable firmly. • Turn on the power of the connected output video signals. Or, check if the video output of the component (video output setting of the VCR or graphic board of the computer) is set correctly. • Adjust the items of "COLOR TEMP ADJ.". 17 • Adjust the picture contrast or brightness by using the 17 adjustment buttons on the front panel. • Set "KEY UN-LOCK" in OSD MENU or push KEY LOCK on REMOTE CONTROL. 14,15 - 30 -