NEC PX803UL-WH User Manual page 193

4. Tighten the two screws on both sides of the slot.
• Be sure to tighten the screws.
This will complete installation of the optional board.
To select the optional board source, select SLOT as the
input.
NOTE:
• Mounting the optional board may cause the fans to run in the standby mode for the purpose of cooling depending on the optional
board. The fan speed may also increase in order to cool the projector properly. Both of these instances are considered normal
and not a malfunction of the projector.
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9. Appendix