InFocus Projector Lp790hb Specifications

							33
MAINTENANCE & TROUBLESHOOTING
 
	

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							34
Maintenance & Troubleshooting
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IGURE 25
Removing the dust filter
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FIGURE 26
Cleaning the filter  
						

							35
Replacing the Projection Lamp
WARNING: To avoid burns, 
allow the projector to cool for at 
least 60 minutes before you 
replace the lamp. Never extract 
the lamp housing while the projec-
tor is operating.
 


	

	
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WARNING: Be extremely careful 
when removing the lamp housing. 
In the unlikely event that the bulb 
ruptures, small glass fragments 
may be generated. The lamp mod-
ule is designed to contain these 
fragments, but use caution when 
removing the lamp module.
F
IGURE 27
Removing the screw on the lamp door
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							36
Maintenance & Troubleshooting
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IGURE 28
Loosening the screws on the lamp housing
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FIGURE 29
Removing the lamp housing
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WARNING: Do not drop the
lamp module or touch the glass
bulb! The glass may shatter and
cause injury.
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							37
Replacing the Batteries in the Remote Control
 
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FIGURE 30
Replacing the batteries in the remote
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FIGURE 31
Installing the security lock 
						

							38
Maintenance & Troubleshooting
Tr o u b l e s h o o t i n g
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							39
Problem: Only the start-up screen displays
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							40
Maintenance & Troubleshooting
Problem: Image is too wide or narrow for screen
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Problem: Projected image is distorted
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							41
 
	
	
		
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[email protected] 
						

							42
Maintenance & Troubleshooting