NEC PX-42VP4A 42VP4/42VP4D - Page 50

Troubleshooting If the picture quality is poor or there is some other problem, check the adjustments, operations, etc., before requesting service. Symptom Checks Picture is disturbed. • Is a connected component set directly in Sound is noisy. front or at the side of the display? Remote control operates erroneously. The remote control does not work. • Are the remote control's batteries worn out? • Is IR REMOTE set to ON? • Has an ID number been set for the main unit? Monitor's power does not turn on when the remote control's power button is pressed. • Is the monitor's power cord plugged into a power outlet? • Are all the monitor's indicators off? Monitor does not operate when the remote control's buttons are pressed. The front panel buttons of the main unit do not function. No sound or picture is produced. Picture appears but no sound is produced. • Are the remote control's batteries worn out? • Is IR REMOTE set to ON? • Has an ID number been set for the main unit? • Is the remote control pointed at the monitor, or is there an obstacle between the remote control and the monitor? • Is direct sunlight or strong artificial light shining on the monitor's remote control sensor? • Are the remote control's batteries worn out? • The remote cable is plugged into the REMOTE IN terminal (Wired). • The front panel buttons do not function during Control Lock. • Is the monitor's power cord plugged into a power outlet? • Is the volume set at the minimum? • Is the mute mode set? • Are the speakers properly connected? • Is AUDIO INPUT set correctly? Poor picture with VIDEO signal input. Poor picture with RGB signal input. Tint is poor or colors are weak. Nothing appears on screen. Part of picture is cut off or picture is not centered. Image is too large or too small. Picture is unstable. POWER/STANDBY indicator is lighted in red. POWER/STANDBY indicator is blinking in red. POWER/STANDBY indicator is blinking in green and red, or green. • Improper control setting. Local interference. Cable interconnections. Input impedance is not correct level. • Improper control setting. Incorrect 15 PIN connector pin connections. • Are the tint and colors properly adjusted? • Is the computer's power turned on? • Is a source connected? • Is the power management function in the standby or off mode? • Is LOOP OUT set to ON? • Is the position adjustment appropriate? • Is the screen size adjustment appropriate? • Is the computer's resolution setting appropriate? • Horizontal and / or vertical sync signal is not present when the Intelligent Power Manager control is on. • The temperature inside the main unit has become too high and has activated the protector. ------ Remedy • Leave some space between the display and the connected components. • Replace both batteries with new ones. • Set IR REMOTE OFF on OPTION3 menu. • Set an ID number with the ID SELECT button, or set the ID number to ALL. • Plug the monitor's power cord into a power outlet. • Press the power button on the monitor to turn on the power. • Replace both batteries with new ones. • Set IR REMOTE OFF. • Set an ID number with the ID SELECT button, or set the ID number to ALL. • Point the remote control at the monitor's remote control sensor when pressing buttons, or remove the obstacle. • Eliminate the light by closing curtains, pointing the light in a different direction, etc. • Replace both batteries with new ones. • Unplug the remote cable from the monitor. • Set the Control Lock to OFF. • Plug the monitor's power cord into a power outlet. • Increase the volume. • Press the remote control's MUTE button. • Connect the speakers properly. • Set AUDIO INPUT on the AUDIO menu correctly. • Adjust picture control as needed. Try another location for the monitor. Be sure all connections are secure. • Adjust picture controls as needed. Check pin assignments and connections. • Adjust the tint and color (under PICTURE). • Turn on the computer's power. • Connect source to the monitor. • Operate the computer (move the mouse, etc.). • Set LOOP OUT OFF. • Adjust the IMAGE ADJUST properly. • Press the WIDE button on the remote control and adjust properly. • Set to the proper resolution. • Check the input signal. • Promptly switch off the power of the main unit and wait until the internal temperature drops. See*1. • Prompty switch off the power of the main unit. See *2. 43