[. . . ] BDL4771V www. publicsignagesolutions. philips. com EN User manual Cleaning and troubleshooting User Manual BDL4771V SAFETY AND TROUBLESHOOTING INFORMATION Safety precautions and maintenance WARNING: Use of controls, adjustments or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards and/or mechanical hazards. Read and follow these instructions when connecting and using your display: Operation: • Keep the display out of direct sunlight and away from stoves or any other heat sources. • Remove any object that could fall into ventilation holes or prevent proper cooling of the display’s electronics. • When positioning the display, make sure the power plug and outlet are easily accessible. [. . . ] 16:9 pictures sometimes have a black band at the top and bottom of the screen (letterbox format). The following zoom modes are available: • Full - This mode restores the correct proportions of pictures transmitted in 16:9 using the full screen display. • Normal - The picture is reproduced in 4:3 format and a black band is displayed on either side of the picture. • Dynamic - Fill the entire screen by stretching 4:3 pictures non-proportionally. • Custom - Choose to apply the custom zoom settings in the Custom zoom submenu. • Real - This mode displays the image pixel-by-pixel on screen without scaling the original image size. RETURN TO THE CONTENTS User Manual BDL4771V • 21:9 - The picture is enlarged to 21:9 format. This mode is recommended when displaying pictures that have black bands at the top and bottom (letterbox format). Custom zoom Note: This item is only available when Zoom mode is set to Custom. Use this function to further customize the zoom settings to suit the image you want to display. Use the UP/DOWN button to toggle between the following items, and use the PLUS/MINUS button to adjust. • Zoom - Expands the horizontal and vertical sizes of the image simultaneously. • H zoom - Expands the horizontal size of the image only. • V zoom - Expands the vertical size of the image only. • H position - Moves the horizontal position of the image left or right. • V position - Moves the vertical position of the image up or down. Select Reset and press the SET button to restore settings to factory preset values. Press the EXIT button to cancel and return to the previous menu. RETURN TO THE CONTENTS User Manual BDL4771V 4. 2. 3. Audio MENU Speaker Set the display to play audio using the built-in (internal) speaker, external speakers or external audio devices (if connected). Use the UP/DOWN button to toggle between • Internal • External • Line-out Volume Adjust to increase or decrease the audio output level. Audio source Select the audio input source – toggle between audio input, DISPLAYPORT, and HDMI. Audio 3 Audio 1 Audio 2 DisplayPort HDMI • DisplayPort Use the UP/DOWN button to toggle between • Audio 1 • Audio 2 RETURN TO THE CONTENTS User Manual BDL4771V • Audio 3 • HDMI Audio reset Reset all settings in the Audio menu. Select Reset and press the SET button to restore settings to factory preset values. Press the EXIT button to cancel and return to the previous menu. RETURN TO THE CONTENTS User Manual BDL4771V 4. 2. 4. Configuration 1 MENU Switch on state Set the display to turn on or remain off when the power cord is connected to a wall outlet. Use the UP/DOWN button to toggle between • Last status - The display will return to the previous power status (on/off/standby) when removing and replacing the power cord. [. . . ] • If the surface becomes dirty, soak a soft, lint-free cloth in a mild detergent solution. • Do not scratch or hit the surface of the panel with fingers or hard objects of any kind. • Do not use volatile substances such as sprays, solvents and thinners. Cabinet Cleaning Instructions • If the cabinet becomes dirty, wipe with a soft, dry cloth. [. . . ]