H651AI – Genuine Auto Iris Assembly for Epson CH-TW6300 TW6700 TW6700W TW6800
The H651AI Auto Iris assembly is a genuine original replacement part designed for select Epson 3LCD projectors, including the CH-TW6300 TW6700 TW6700W TW6800. This item without detection board.
This auto iris is a mechanical component that automatically adjusts the aperture to regulate light output. When it fails, the projector may exhibit:
- Random flickering or pulsing brightness
- A persistent clicking or grinding noise during operation
- Stuck iris causing constant over‑ or under‑exposure, resulting in an image that is either too bright or too dim
- Error codes or automatic shutdown related to the iris mechanism
Replacing a faulty H651AI auto iris with this genuine original assembly restores proper dynamic contrast and stable brightness control. Installation requires disassembly of the optical engine and mechanical expertise; this repair is recommended for experienced technicians only.
Before ordering: Confirm your projector model (CH-TW6300 TW6700 TW6700W TW6800) and that the auto iris assembly matches H651AI. If unsure, send us a clear photo of your existing assembly – we will verify compatibility for you.
