| 摘要 |
A projection display device includes light source device including a plurality of lamp units; a plurality of lamp covers for covering a plurality of lamp apertures through which respective lamp units are taken in and out; a plurality of lamp power source units for driving respective lamp units; temperature switch for detecting the temperature of light source device; and main control unit. When at least one lamp unit is turned off during operation by opening of corresponding lamp cover, main control unit continues the operation. When at least one lamp unit is turned off during operation by temperature detection of temperature switch or abnormal operation of lamp power source unit, the main control unit stops the operation. |
