Hitachi CP-RS57 User Manual - Page 47

Troubleshooting Troubleshooting Related messages When the unit's power is on, messages such as those shown below may be displayed. When any such message is displayed on the screen, please respond as described below. If the same message is displayed after the treatment, or if a message other than the following appears, please contact your dealer or service company. Although these messages will be automatically disappeared around several minutes, it will be reappeared every time the power is turned on. Message Description NO INPUT IS DETECTED ON *** There is no input signal. Please confirm the signal input connection, and the status of the signal source. SYNC IS OUT OF RANGE ON *** fH *****kHz fV *****Hz 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. CHECK THE AIR FLOW The internal portion temperature is rising. Please turn the power OFF, and allow the unit 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? • If the same indication is displayed after the treatment, please set the HIGH at the FAN SPEED of the item SERVICE of the OPTION menu. REMINDER A note of precaution when cleaning the air filter. *** HRS PASSED AFTER THE Please immediately turn the power OFF, and clean or LAST FILTER CHECK. change the air filter by referring to the "Air Filter" section of FILTER MAINTENANCE IS ESSENTIAL this manual. After you have cleaned or changed the air filter, TO REMOVE WARNING MESSAGE, please be sure to reset the filter timer (40). RESET FILTER TIMER. SEE MANUAL FURTHER INFO. 47