NEC PX-50M5A 5000W - Page 58

Troubleshooting If the picture quality is poor or there is some other problem, check the adjustments, operations, etc., before requesting service. Symptom Checks Remedy Picture is disturbed. Sound is noisy. Remote control unit operates erroneously. The remote controller does not work. Monitor's power does not turn on when the remote controller's power button is pressed. Monitor does not operate when the remote controller's buttons are pressed. No sound or picture is produced. Picture appears but no sound is produced. 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. • Is a connected component set directly in front or at the side of the display? • Are the remote controller's batteries worn out? • Is the monitor's power cord plugged into a power outlet? • Are all the monitor's indicators off? • Are the remote controller's batteries worn out? • Is the remote controller pointed at the monitor, or is there an obstacle between the remote controller and the monitor? • Is direct sunlight or strong artificial light shining on the monitor's remote control sensor? • Are the remote controller's batteries worn out? • 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? • Are the tint and colors properly adjusted? • Is the computer's power turned on? • Is a source connected? • Is the power manager function in the standby or off mode? • Is the position adjustment appropriate? • Is the screen size adjustment appropriate? • Is the computer's resolution setting appropriate? • Leave some space between the display and the connected components. • Replace both batteries with new ones. • 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. • Point the remote controller 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. • Plug the monitor's power cord into a power outlet. • Increase the volume. • Press the remote controller's mute button. • Connect the speakers properly. • Adjust the tint and color (under "PIC- TURE"). • Turn on the computer's power. • Connect source to the monitor. • Operate the computer (move the mouse, etc.). • Adjust the "RGB ADJ." properly. • Press the "WIDE/AUTO WIDE" button on the remote controller and adjust properly. • Set to the proper resolution. 51