Garmin 74C User Manual

Page of 106
Solving Problems
75
Solving Problems with the Image or 
Sound
No image appears on the screen.
Check that the power light is green, not flashing, and the lens cap 
is off. 
The projector may be in standby or sleep mode. If the projector 
has not received any input signal for 30 minutes, it turns off the 
lamp to conserve the lamp life and save energy. If the power light 
is orange, press the P 
Power
 button to turn the projector on.
Press the 
A/V Mute 
button to make sure the picture has not been 
turned off temporarily. 
If the power was switched off and then on again, the projector 
may still be cooling down. Wait until the power light stops 
flashing and remains orange; then press the P 
Power
 button 
again.
Check the 
Video Signal
 or 
Input Signal
 setting in the Image 
menu to make sure it is correct for the selected source. See 
page 50 for more information.
Has the 
Message
 option in the Setting menu been set to 
OFF
?
Adjust the 
Brightness
 setting on the Image menu or select 
High
 
for the 
Brightness Control
 setting in the Advanced menu. See 
The attached computer may be in sleep mode or displaying a 
black screen saver. Try pressing a key on the computer.