Original Epson CB‑G7400U / G7500U / G7900U / G7905U Light Route – H733 (LCD Block Not Included)
H733 Light Route only – no LCD panels. This is a genuine Epson optical light path assembly (model H733) for CB‑G7400U, G7500U, G7900U and G7905U projectors.
The assembly is brand new, original Epson spare part. It is factory‑calibrated for correct light transmission and polarisation. If your projector has suffered from light tunnel damage, burnt polarisers, or haze inside the optical path, this is the correct replacement – without buying a full LCD block.
| Compatible Models | Epson CB‑G7400U, CB‑G7500U, CB‑G7900U, CB‑G7905U (high‑brightness installation / professional series) |
|---|---|
| Model / Part Number | H733 (Light Route – without LCD panels) |
| Condition | Brand New – 100% Original Epson Spare Part |
| Included | Optical light path assembly only, LCD block is NOT included. |
Why you might need the light path assembly (H733) alone
Over thousands of hours, high‑brightness Epson projectors can develop optical issues that are not related to the LCD panels. Common problems include:
- Burnt or hazy polarisers – light becomes dim or uneven, with colour shifts.
- Light tunnel / integrator rod damage – visible patterns or lines in the projected image.
- Dust or smoke contamination inside the sealed optical path – spots that cannot be cleaned without disassembly.
- Yellowing or browning of prisms – aged adhesive or coating failure.
If your LCD block is still good (no dead pixels or panel damage), replacing only the light path assembly restores optical performance without the cost of a full LCD block.
What this assembly does
The H733 light path sits between the lamp / laser source and the LCD block. It splits white light into red, green and blue channels, polarises each channel, and directs the light to the corresponding LCD panel. After the light passes through the LCD panels, this same assembly recombines the three colours and projects the image through the lens. If any polariser, mirror, or prism surface is damaged, the final image will suffer. This new H733 restores factory‑clean optics.
Restore your G‑series installation projector to factory optical condition
CB‑G7400U, G7500U, G7900U and G7905U are expensive WUXGA installation projectors. If the light path has degraded but the LCD block is still good, this genuine H733 assembly gives you a cost‑effective way to restore brightness, uniformity, and colour accuracy. Buy only if you understand the complexity of the repair.
Tip: Before ordering, verify that your issue is indeed in the light path (dim / uneven / discoloured image) and not in the LCD block (dead pixels, colour banding). Send us photos of your current optical issue if you need help diagnosing.
