Answer
Aug 31, 2025 - 09:07 PM
Yep, those Hitachi projection TVs do use a Fresnel lens as part of the screen assembly — it’s layered with a lenticular lens to help spread and focus the image from the projection system across the full screen surface. So if you're dealing with issues like hot spots, poor brightness uniformity, or screen damage, the Fresnel might be involved.
As for capacitors — absolutely, there are plenty in there. The power supply board, convergence circuit, and deflection board all rely on capacitors, and over time, they can go bad. In fact, bulging or leaking caps are a common failure point in older projection TVs like these. If you're troubleshooting power issues, flickering, or weird image distortion, caps are definitely something to inspect.
The service manual covers both optical and electrical systems in detail — so if you're digging into repairs or replacements, it's a solid resource.
