Infocus inf4201 Verweisanleitung

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Problem 

Possible Solution 

No power 

•   Verify the power cord is properly connected to the power outlet and to the 

monitor. 

•   Verify the monitor power switch is ON (INF5501 and INF6501 only) and that 

the power button (all models) is ON. 

•   Plug another electrical device (like a radio) to the power outlet to verify that 

the outlet is supplying the proper voltage. 

No picture 

•  Verify that connections between the source and the monitor have been made 

correctly. 

•   Verify that the cables are in good condition. 
•   Verify the correct input source is selected and that the input signal is 

compatible with the monitor. 

No sound 

•   Verify that audio connections between the source and the monitor have been 

made correctly. 

•  MUTE may have been pressed, try pressing this button again. 
•  Press the VOLUME + on the remote control. 

Remote control 
does not 
function 
properly 

•   Verify the batteries in the remote are properly aligned. 
•   The batteries may be weak or dead. Replace batteries. 
•   There may be infrared interference from fluorescent lights or infrared 

equipment nearby. Move closer to the remote sensor on the monitor, or turn 
off items which may be interfering with the remote’s infrared signal. 

•   The path of the remote control beam may be blocked. Verify the path is clear 

and that the remote control is aimed at the remote control sensor on the 
monitor. 

•  Press POWER on the remote control to see if you can turn on the monitor. 
•  Press MENU on the remote control to see if a menu will display on the screen. 

Monitor 
shuts-down 
suddenly 

•   The Sleep Timer may be activated. Turn on the monitor and check the Sleep 

Timer setting. 

•   Verify that a source is active. 
•   The monitor may have overheated. Remove any objects blocking the vent and 

clean as necessary. 

Strange or faded 
colors, or color 
misalignment 

•   Ensure that the video cable is connected securely. 
•   The picture may appear dim in a brightly lit room. 
•   Adjust brightness, contrast, saturation (color), and tint. 
•   Check the input signal setting. 

Monitor will 
not power on 

•   Lightning, static electricity and other external events may cause the monitor 

to act abnormally. In this case, unplug the power cord and wait for 1 to 2 
minutes, then plug back in and attempt to power up the monitor again. 

•   Adjust the color saturation in the menu system. 

•  Noise can occur when infrared communication equipment (e.g., infrared 

cordless headphones) is used near the monitor. Move the infrared 
communication equipment away from the monitor to eliminate the noise. 

 
Caution:  
DO NOT attempt to repair a defective monitor yourself. If the above tips do not solve the problem, 
contact InFocus Corporation (

) for support/repair assistance.