3M MP7640I User Manual - Page 35

WHAT TO DO WHEN YOU THINK A MACHINE DEFECT HAS OCCURRED 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. Message Description CHANGE THE LAMP Lamp usage time is approaching 2,000 hours. (Note 2) AFTER REPLACING LAMP, RESET THE LAMP TIMER. Preparation of a new lamp, and an early lamp change, is recommended. After you have changed the lamp, please be (Note 1) sure to reset the lamp timer. CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER. Lamp usage time is approaching 2,000 hours. A lamp change within ˎˎ hours is recommended. (Note 2) When lamp usage reaches 2,000 hours, the power will automatically be turned OFF. Please change the lamp by THE POWER WILL TURN OFF referring to "THE LAMP". 29 After you have AFTER ˎˎ hr. changed the lamp, please be sure to reset the lamp (Note 1) timer. 28 CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER. As lamp use has reached 2,000 hours, the power will soon be automatically turned OFF. (Note 2) Please immediately turn the power OFF, and follow the instructions in the "THE LAMP", 29 THE POWER WILL TURN OFF AFTER 0 hr. After you have changed the lamp, please be sure to reset the lamp timer. 28 CLEAN THE AIR FILTER AFTER CLEANING AIR FILTER, RESET THE FILTER TIMER. A note of precaution when cleaning the air filter. After cleaning the filter, operate FILTER TIME of the OPTION Menu, and perform reset of the filter timer. 28 NO INPUT IS DETECTED ON ˎˎˎ There is no input signal. Please confirm the signal input connection, and the status of the signal source. SYNC IS OUT OF RANGE ON ˎˎˎ fH ˎˎˎˎˎkHz fV ˎˎˎˎˎHz The horizontal or vertical wavelength of the inputted signal is outside of the response parameters of this unit. Please confirm the specs for this unit 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 for approximately 20 minutes. After having confirmed the following items, then please resent the power to ON. • Is there blockage of the air passage aperture? • Is the air filter dirty? • Does the peripheral temperature exceed 35°C? NOTES Note 1: Although this message will be automatically disappeared after around 3 minutes, it will be reappeared every time the power is turned ON. Note 2: Lamps have a finite product life. Lamps are characterized by the fact that, after long hours of usage, a lamp will no longer light up, or the lamp will break or burst, etc. This unit is equipped with an automatic shut-down function, such that the power will automatically be turned OFF when lamp usage time has reached 2,000 hours. Please be aware, however, that among lamp types, there are major differences in product lifetimes; a lamp may thus fail to light even prior to the functioning of the automatic shut-down function of this unit. 34