Canon REALiS LCOS WUX7500 WUX7500 WUX6700 WUX5800 Users Manual - Page 232
You Cannot Operate the Remote Control
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Troubleshooting ■ You Cannot Operate the Remote Control Cause Batteries are not installed properly or they have run out. You are operating the remote control from the outside of the remote control operating range. There is an obstacle between the projector and the remote control. You are operating the remote control in an unsuitable operating environment. The channel setting of the remote control does not match the setting of the projector. The key lock function is preventing operation of the remote control. Light from the room lights is entering the infrared remote receiver. Countermeasure Check whether batteries are installed correctly. If batteries are installed correctly, replace them with new batteries (P38). Check whether you are operating the remote control within the remote control operating range of the main unit of the projector (P39). Remove the obstacle between the infrared remote receiver of the main unit of the projector and the remote control or point the remote control in an obstacle-free path. Check whether the infrared remote receiver of the main unit of the projector is exposed to direct sunlight or strong light of lighting apparatus (P39). Check whether the channel setting of the remote control has been changed. You can check the [Remote control channel] setting in the [System settings] menu (P159). Check whether [Key lock] is enabled to disable the remote control operation. In the [System settings] menu, set [Key lock] to [Off] (P158). Block the light. 230