BenQ EL2870U User Manual - Page 54

Audio No sound can be heard from the built-in speakers. • Check whether the desired cable to input audio signals is properly connected. See Connect the audio cable. (Selected models only) on page 16 for details. • Increase the volume (volume may be muted or too low). • Remove your headphone and/or external speakers. (If they are connected to the monitor, the built-in speakers are automatically muted.) No sound can be heard from the connected external speakers. • Remove your headphone (if the headphone is connected to the monitor). • Check whether the headphone jack is properly connected. • If the external speakers are USB-powered, check whether the USB connection is OK. • Increase the volume (volume may be muted or too low) on the external speakers. • If USB-C™ connection is established, make sure the appropriate audio output setting on your laptop has been selected. You may look for options similar to "USB headphone." Sensors The light sensor of the monitor does not work well. The light sensor is located at the front bottom of the monitor. Please check: • If you have removed the sensor protection sticker. • If the Bright Intelligence / Bright Intelligence Plus function has been turned on. Check Eye Care > Bright Intelligence / B.I.+ (Bright Intelligence Plus). • If there are any obstacles in front of the sensor that keep the sensor from detecting the light properly. • If there are any objects or clothing in bright colors in front of the sensor. Bright colors (especially white and fluorescent colors) reflect light and the sensor cannot detect the main light sources. HDR (models with HDR feature) There is a message HDR: Emulated showing on the screen. This means the input content is not HDR-compatible and the monitor is in HDR-emulated mode. Refer to Working with HDR technology (Models with HDR feature only) on page 32 to check if a supported player, content, and the certified cable are used. 54 Troubleshooting