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6-2
Chapter Six
Projector
PROBLEM LIKELY CAUSE POSSIBLE SOLUTION(S)
No image projected No power to projector Turn power ON
Check AC cord
Check power to electrical outlet
Lamp not on Turn lamp ON
Lamp burned out Replace lamp assembly
Circuit breaker tripped Correct overload situation; press
circuit breaker reset button
Over-temperature indication Allow projector to cool; turn
projector OFF and then ON
No computer image Loose cable Check and secure cable
projected connections
No power to computer Turn on computer
Incompatible video system If possible, check computer with
another monitor
No video image Video source(s) Check video source(s)
projected
Loose/improper cabling Check and secure cabling
between video source(s) and
projector
REPLACE LAMP Burned-out lamp Replace lamp
indication
Displayed image Projector not placed at a Adjust position of the
not square proper angle to projection projector and the screen
(keystoning) screen
Projected image Projection lens not focused Adjust the focus
out of focus
Projected image Projector too far from screen Move projector closer to screen
larger than screen Zoom not set correctly on Adjust power zoom
zoom model