Sharp PN-455RUP PN-455 Operation Manual - Page 52

Troubleshooting Before calling for repair services, make sure following checks for possible remedies to the encountered symptoms. Problem There is no picture or sound. Check item • Is the AC cord disconnected? • Is the main power switch turned off or is the monitor in standby mode? • Make sure external equipment is connected properly. • Make sure correct INPUT is selected. • Make sure the connected external equipment is operating (playing back). Page 19 24 13 to 17 25 - There is no picture. • The signal may be incompatible. - Picture disappears. • Is the monitor in waiting mode? 24 Remote control does not work. • Are the batteries inserted with polarity ( , ) 12 aligned? • Are the batteries worn out? • Point the remote control unit toward the monitor's remote control sensor. • Is the menu display locked? 29 Sound from left and right speakers is reversed. Sound is heard from only one side. • Are audio cables connected properly? • Make sure audio cables for external speakers are connected properly: left and right cables may be reversed or one of the two cables may not be connected. 13 to 17 18 There is a picture but no sound. • Make sure the volume is not set to minimum. • Video, S-video, component and RGB terminals are for video only. Make sure audio cables are also connected. • Is the audio corresponding to the selected image being input? 25 13 to 17 13 to 17 • Check "Color" and "Tint" adjustments. Faint color or bad hue. • Make sure the connection sequence is correct. 31 to 32 13 to 17 E 52