Why Sharp Notevision XR-50S cooling fan becomes noisy?
- CCraig DavisSep 9, 2025
When the temperature inside your Sharp Projector increases, the cooling fan runs faster, which can cause it to become noisy.

Why Sharp Notevision XR-50S cooling fan becomes noisy?
When the temperature inside your Sharp Projector increases, the cooling fan runs faster, which can cause it to become noisy.
Why Sharp Notevision XR-50S Projector lamp needs much time to turn on?
The lamp will eventually need to be changed. While the remaining lamp life draws to a close, replace the lamp.
What does dark or bluish image on Sharp Notevision XR-50S mean?
Check that “Wall Color” is configured correctly.
What does unusual sound from Sharp Projector cabinet mean?
If you occasionally hear an unusual sound from the cabinet of your Sharp Projector, and the picture is normal, the sound is likely due to cabinet shrinkage caused by room temperature changes. This will not affect operation or performance.
What does green picture on Sharp Notevision XR-50S Projector mean?
Change the input signal type setting.
Assures full benefit of parts, service and labor warranty.
Ensures prompt receipt of safety notifications for inspection, modification, or recall.
Information on proper disposal or recycling of materials like tin-lead solder and mercury.
Device tested and found to comply with FCC limits for Class B digital devices.
Statement of compliance with FCC rules for Class B digital devices.
Precautions and warnings regarding the projector's mercury lamp.
Instructions for accessing projector manuals included on the CD-ROM.
Connect and set up the projector and computer using one example.
Covers projector placement, connections, image adjustment, and power operations.
Positioning the projector perpendicular to the screen for optimal image quality.
Details on projection modes and recommended ceiling mount setup.
Overview of projector input/output terminals for various equipment.
Connecting computers, video, and audio equipment to the projector.
Controlling projector via RS-232C and connecting the power cord.
Procedures for turning the projector on, off, and using the setup guide.
Adjusting focus, height, picture size, and correcting trapezoidal distortion.
Switching input modes, adjusting volume, and using AV Mute.
Using the remote for pointer, spot function, and Eco+Quiet mode.
Auto Sync, Freeze, Picture Mode, and image enlargement functions.
Using the remote control as a wireless mouse via USB connection.
Overview of Quick Start and Complete Menu structures.
In-depth settings for picture, signal, and screen adjustments.
Configuring various projector functions like Auto Sync, Fan Mode, and Locks.
Instructions for cleaning and replacing projector components.
Diagnosing problems using maintenance indicators and troubleshooting steps.
Pin assignments, RS-232C specifications, and communication commands.
Charts for computer signal compatibility and projector specifications.
Contact information for SHARP assistance and projector physical dimensions.











