Wiki contribuído por estudante
Uma equipe incrível de estudantes do nosso programa de educação fez esta wiki.
Dark Bands on the Screen
Dark bands can occur across or on the edge(s) of the projected screen.
Dust in Bulb Compartment
Over time dust can build up on the projector and can cause an obstruction. To clean this gently use a soft micro-fabric cloth to clear out the dust.
A Collapsed or Damaged Light Tunnel
If there are dark lines running across the screen then there might be a damaged light tunnel you may need to change out the tunnel or make repairs to said damage. To see how to do this, visit InFocus Sp 4805 Light Tunnel Replacement guide.
Spots on Screen
There are spots on the screen when the device is on and running.
Dirty Lens
If you are experiencing spots on your screen, then the odds are the lens needs cleaning. In order to resolve this take a micro-fabric clothe to the lens. Make sure all dust is cleaned off.
Broken Lens
If the lens is clean yet spots are still being displayed, the lens might be broken or chipped. To solve this you have to replace the lens, see InFocus Sp 4805 Lens Replacement guide.
No Color is Displayed on Screen
Device is projecting a black and white image.
Wrong Settings
If the image is black and white the cause might be the setting being wrong. If the color is set on “off,” image will be grey scale. In the User Control, reset the color to be “on.”
Bad Cable Connection
S-video is made of two signals. Luminance which is grey scale and chrominance also known as color. When the chrominance level isn’t retrieved, the image will be black and white. Having the wrong connector may be the result of this problem. To fix this, check to make sure you have the correct connector.
Damaged Color Wheel
A tremendous amount of noise from inside of the device paired with a black and white image on the screen. The color wheel is ultimately damaged; the noise is coming from disc being off balance. Solution to this would be a replacement for the color wheel.
No Image
The projector is turned on and the can be heard running, but no image is displayed.
Bulb Needs Replacing
If the projector is on and running, the bulb might need a replacement (OwnerIQ, Inc., 2017). Shine a flashlight behind the lens, if an image is displayed try replacing the bulb, see InFocus Sp 4805 Bulb Replacement.
Malfunctioning Motherboard
If you have checked the bulb and/or replaced it yet no image is displayed, you might have a malfunctioning motherboard. To fix this problem you have to take the old motherboard out and replace it with a new, functioning one. Visit InFocus Sp 4805 Motherboard Replacement to receive instructions.
Audio isn’t Working
The projector is on and running, but no sound is played.
Loose Cables
If your audio is not working correctly, you might have loose cables. To fix this, make sure all cables are plugged in correctly. Go to the settings menu to ensure the settings on are correct as well.
Malfunctioning Motherboard
If the problem with the audio persists after checking cables and settings, you might have a malfunctioning motherboard. To fix this you have to replace the motherboard with a new one. VisitInFocus Sp 4805 Motherboard Replacement for instructions.
Device Turning Off
The projector will turn off randomly while running.
Overheating
If your device is turning off randomly it might be overheating. To resolve this, make sure nothing is resting against the back of the projector where the vents are. Turn off the projector and allow it cool for one minute before turning it back on.
Clogged Lamp Housing
If your device is still overheating when its vents are not blocked, the lamp housing might be clogged. To clean the lamp housing, first, remove the lamp housing. Examine the dust filter screens on the lamp housing. If necessary, use a vacuum cleaner set on low power to clean the screens. Be careful not to disturb any internal components when cleaning screens. Make sure you do not use any liquids while cleaning. Replace the lamp housing and lamp door.
No Audio
No sound or fuzzy sound.
Disconnected HDMI Cable
Reassure the HDMI cable is connected.
Volume Control
If you made sure the cable is connected, you may have accidentally set the volume setting on "mute." Access your control panel and make sure the volume is on "loud" instead of "mute."
Hardware
If there is broken fuzzy sound, the speaker could be physically damaged and may be in need of replacement. Visit InFocus Sp 4805 Mono Speaker Replacement for instructions.
2 comentários
It's in protection mode.
crystal cradle - Responder
It is in protection mode
crystal cradle - Responder