Hitachi X253 User Manual - Page 55

Troubleshooting Phenomena that may be easy to be mistaken for machine defects About the phenomenon confused with a machine defect, check and cope with it according to the following table. Phenomenon Cases not involving a machine defect The electrical power cord is not plugged in. Correctly connect the power cord. Power does not come on. The main power source has been interrupted during operation such as by a power outage (blackout), etc. Please disconnect the power plug from the power outlet, and allow the projector to cool down at least 10 minutes, then turn the power on again. Either there is no lamp and/or lamp cover, or either of these has not been properly fixed. Please turn the power off and disconnect the power plug from the power outlet, and allow the projector to cool down at least 45 minutes. After the projector has sufficiently cooled down, please make confirmation of the attachment state of the lamp and lamp cover, and then turn the power on again. The signal cables are not correctly connected. Correctly connect the connection cables. Neither sounds Signal source does not correctly work. nor pictures are Correctly set up the signal source device by referring to the outputted. manual of the source device. The input changeover settings are mismatched. Select the input signal, and correct the settings. The signal cables are not correctly connected. Correctly connect the audio cables. Sound does not come out. The MUTE function is working. Restore the sound pressing the MUTE or VOLUME button on the remote control. The volume is adjusted to an extremely low level. Adjust the volume to a higher level using the menu function or the remote control. The AUDIO setting is not correct. Correctly set the AUDIO in the SETUP menu. No pictures are displayed. The lens cover is attached. Remove the lens cover. The signal cables are not correctly connected. Correctly connect the connection cables. (continued on next page) Reference page 10 10, 13 48 8 - 14, 15 8 14 14 32 13 8 55