ViewSonic PJ452 Service Manual - Page 31

6-11 Regarding the indicator lamps Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP indicator have the meanings as described in the table below. Please respond in accordance with the instructions with in the table. POWER LAMP TEMP indicator indicator indicator Description Lighting Turned Turned The projector is in a standby state. In Orange off off Blinking Turned Turned The projector is warming up. In Green off off Please wait. Lighting Turned Turned The projector is in an on state. In Green off off Ordinary operations may be performed. Blinking Turned Turned The projector is cooling down. In Orange off off Please wait. Blinking In Red (discretionary) (discretionary) The projector is cooling down. A certain error has been detected. Please wait until the POWER indicator finishes blink, and then perform the proper response measure using the item descriptions below as reference. Blinking In Red or Lighting In Red Lighting In Red Turned off The lamp does not light, and there is a possibility that interior portion has become heated. Please turn the power off, and allow the unit to cool down at least 20 minutes. After the projector has sufficiently cooled down, please make confirmation of the following items, and then 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 change the lamp by referring to the section "Lamp" Blinking In Red or Lighting In Red Blinking In Red Turned off The lamp cover has not been properly fixed (attached). Please turn the power off, and allow the unit to cool down at least 45 minutes. After the projector has sufficiently cooled down, please make confirmation of the attachment state of the lamp cover. After performing any needed maintenance, turn the power on again. Blinking In Red or Lighting In Red Turned off Blinking In Red The cooling fan is not operating. Please turn the power off, and allow the unit to cool down at least 20 minutes. After the projector has sufficiently cooled down, please make confirmation that no foreign matter has become caught in the fan, etc. and then turn the power on again. If the same indication is displayed after the treatment, please replace a fan. Blinking In Red or Lighting In Red Turned off Lighting In Red There is a possibility that the interior portion has become heated. Please turn the power off, and allow the unit to cool down at least 20 minutes. After the projector has sufficiently cooled down, please make confirmation of the following items, and then 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. Lighting In Green Alternative blinking in Red There is a possibility that the interior portion has become overcooled. Please use the unit within the usage temperature parameters (5°C to 35°C). After the treatment, resent the power to ON. If the same indication is displayed after the treatment, please make sure the wire connection of the connectors E301 and E302 on the PWB assembly MAIN. Lighting In Green Simultaneous blinking in Red It is time to clean the air filter. Please immediately turn the power OFF, and clean or change the air filter by referring to the section "Air Filter". After cleaning or changed the air filter, please be sure to reset the filter timer. After the treatment, resent the power to ON. NOTE • When the interior portion has become overheated, for safety purposes, the power source is automatically turned off, and the indicator lamps may also be turned off. In such a case, press the " " (OFF) side of the power switch, and wait 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. ViewSonic Corporation Confidential - Do Not Copy PJ452 28