ViewSonic PJ658 PJ658 User Guide - Page 59

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 follow the instructions described below. If the same message is displayed after the remedy, 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  There is no input signal. Please confirm the signal input connection, and the status of the signal source. SYNC IS OUT OF RANGE  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 temperature is rising. 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? If the same indication is displayed after the remedy, please set FAN SPEED of the SERVICE item in the OPTION menu to HIGH. REMINDER *** HRS PASSED AFTER THE LAST FILTER CHECK. FILTER MAINTENANCE IS ESSEN- TIAL TO REMOVE WARNING MES- SAGE, RESET FILTER TIMER. 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 "Air Filter" section of this manual. After you have cleaned or changed the air filter, please be sure to reset the filter timer. SEE MANUAL FURTHER INFO. ViewSonic PJ658 55