46Power does not come on.• Power plug disconnect from power outlet?• Monitor and TUNER connected?• If power cannot be turned on by remote control, confirmthat the power switch of the monitor is ON.• Power adapter connected to the TUNER?98129TROUBLE SHOOTINGIf you cannot solve the problem by following the list below, remove the power plug andcontact your dealer or a local service centre.General (TV·AV/PC)Symptoms Check See pagesRemote control not functioning.• Power switch of the monitor switched on?• Battery in remote control exhausted?Replace battery or use the controls on the TUNER panel.• Battery inserted with correct polarity?• Remote control sensor window exposed to strongexternal light?• Remote control sensor window or sending window soiled?• Are you using the remote control designed for this unit?• Are monitor and TUNER connected?No sound from headphones. • Connect correctly to headphones jack. 27Picture displayed, but no sound. • Is muting (MUTE) activated?• Is volume (VOL) set to minimum?• Is the audio cable connected correctly?22, 3311, 12, 31 -3326, 27, 30Picture too dark. • Adjust backlight (only PC mode), contrast, and brightness. 14, 36No picture displayed.• Power supply turned OFF?• Monitor and TUNER connected?• Signal cable correctly connected?• If in PC mode, cancel power management mode. (Movethe mouse or press a button on the keyboard. For details,refer to the computer instruction manual.)• Check input selection (INPUT).12, 3289, 26 - 274311,12, 31, 32Power indicator does not go off. • Press the power switch again. 12, 32Power indicator does notlight.• Power plug disconnect from power outlet?• Monitor and TUNER connected?• Press power switch.• Power adapter connected to the TUNER?9812, 329Red, blue or green dots, or dotswith wrong color on the screen.• The LC-display may contain pixels that do not light or arealways illuminated. 0.005% of total effective pixels maybe permanently dark or illuminated. This does notrepresent a defect.–12,3268