Epson H842b Projector Manual [updated] -

Epson H842B is commonly referred to by its consumer model name, the Epson EB-S41

  1. Point directly at the IR receiver on the front or rear.
  2. Replace the battery (CR2025 coin cell).
  3. Check "Remote Receiver" in the Extended menu is not set to "Off."

The Rear Connector Panel (Critical for Setup)