"To extend LED life (rated for 20,000 hours), use 'Standby' rather than power cycling when the system is idle for less than 4 hours. Frequent full power cycles degrade the mainboard capacitor array."
Here’s the for finding and using the correct 2021-relevant manual: Olympus Cv-290 Manual 2021
I couldn’t locate an official because the CV-290 is part of Olympus’s EVIS EXERA III series, and the core processor manual was originally released earlier (circa 2014–2016). However, the same manual remained in effect for 2021 —only minor addenda for new compatible scopes (like GIF-H290Z, CF-HQ290I) were issued. "To extend LED life (rated for 20,000 hours),
Supports HDTV 16:9 and 16:10; Digital outputs include DVI and HD-SDI Data Storage Supports HDTV 16:9 and 16:10; Digital outputs include
For the endoscopist, the manual is a guide to visual optimization. The CV-290 is renowned for its image quality, but that quality is dependent on correct settings.