Hitachi CPD10WALLARM Operating Guide - Page 58

Troubleshooting Related messages When some message appears, check and cope with it according to the following table. Although these messages will be automatically disappeared around several minutes, it will be reappeared every time the power is turned on. Message Description There is no input signal. Please confirm the signal input connection, and the status of the signal source. The horizontal or vertical frequency of the input signal is not within the specified range. Please confirm the specs for your projector or the signal source specs. An improper signal is input. Please confirm the specs for your projector or the signal source specs. The interior temperature is too high, or has increased or decreased in a short term. Please turn the power off, and allow the projector to cool down at least 20 minutes. After having confirmed the following items, please turn the power on again. • Is there blockage of the air passage aperture? • Is the air filter dirty? • Does the peripheral temperature exceed 35°C? • Does warm or cool air from an air conditioner or similar unit blow on the projector directly? If the same indication is displayed after the remedy, please set FAN SPEED of the SERVICE item in the OPTION menu to HIGH. A note of precaution when cleaning the air filter. Please immediately turn the power off, and clean or change the air filter referring to the "Cleaning and replacing the air filter" section of this manual. After you have cleaned or changed the air filter, please be sure to reset the filter time ( 43). The button operation is not available ( 6). 58