5x1 HDMI / HDBT Multimedia Presentation Switch Installation Guide© MuxLab Inc. 2015 155. Operations5.1 Operations of Front Panel ButtonsFront panel buttons can be used for adjusting output resolution, switching operations,software updating, volume adjusting and other operations in the menus.5.1.1 Adjusting ResolutionThere are two modes available: auto-adjust and manual-adjust. Press and hold theResolution/Auto button for 7 seconds or more to switch between auto-adjust andmanual-adjust modes.Note:1) In auto-adjust mode, the 500435 will choose the resolution of the display device atthe far-end as the preferred resolution. If you need to choose the resolution of alocal HDMI display device, follow the steps below:• Turn off the power of the 500435 and disconnect the HDMI Extender PoC/PoEReceiver.• Turn on the power of the 500435.• The 500435 gets the resolution of the local HDMI output device.• Connect the HDMI Extender PoC/PoE Receiver to the 500435.2) In auto-switch mode, the front panel button control is not active, but it is possible toswitch modes from the IR or RS232 controls.5.1.2 Switching OperationsVideo signals support auto-switching and manual-switching. Press and holdSource/Auto button for 7 seconds or more to enter the auto-switching or themanual-switching mode.The display result is showed as below:The display result will be showed for 2 seconds.IN: HDMI1 MANUAL1280 X 720IN: HDMI1 AUTO1280 X 720