242.4 Front Panel Control Knobs1. VOL + VOL +: Press to increase the sound volume level.2. VOL - VOL -: Press to decrease the sound volume level.3. CH ▲ CH ▲: Press to select the next higher Programme number.4. CH ▼ CH ▼: Press to select the next lower Programme number.5. MENU Menu key: Press to open or exit the OSD (on-screen display) menu.6. INPUT Input key: Press to select the input source.7. POWER Power key: Press to turn on / off (standby) the TV set. (Press to turn on TV after thepower on status, LED had changed to the Blue colour and stopped flashing.)