Video Projector—Repair, Replace, or Upgrade?

You’ve properly maintained it, cleaning the filters regularly, changing the lamps before they degrade to the point of exploding — or, perhaps not? Either way, at some point it’s worth considering replacing rather than maintaining that aging projector.

Jim Kumorek  ·  March 12, 2018

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Linden also notes that laser projectors generate less heat, and thus don’t need to move as much air through them. Therefore, these projectors are quieter than traditional lamp-based projectors, which can be a big factor if your projector is positioned out over the heads of your congregation. Pendley adds, “Lamps don’t fail when they are turned off during the week.

They fail when they are on, which is during the service. A laser-phosphor projector can greatly reduce the potential of mid-service failures.” Another thing that one should consider when replacing a projection system is whether it’s worth looking at LED video walls.

However, these only make economic sense in spaces with large amounts of uncontrolled ambient light. It’s been stated that the cost of a projector bright enough to overcome the ambient light plus the first year or two of lamp changes equals the cost of a video wall. Both Linden and Pendley believe that laser-phosphor technology has swung that pendulum back in favor of projectors some, as the lamp changes are now eliminated when you compare costs.

While perhaps not as fast-changing as lighting and audio technologies, video projector technology has improved over time. As Linden commented, it’s always worth reviewing your needs and the ability of your system to meet


SDI: Serial Digital Interface. This is a professional-quality way to transmit video signals up to about 300 meters over co-ax cable.

HDbaseT: This is a way to transmit HD video signals over CAT5E/CAT6 Ethernet cable.

HDMI: This is the consumer level of cabling for connecting HD components together, such as a Blu-ray player to a television.

DisplayPort: A cabling mechanism developed by Dell and standardized by VESA. It’s primarily been adopted by computer manufactures.

Laser-Phosphor Lamps: This is a fairly new lamp technology in which blue laser diodes are used to excite phosphor. The combination of the blue light from the laser and the light from the phosphor is passed through the imaging chip. This is a low-heat and low-maintenance method of creating light.



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Jim Kumorek
Jim Kumorek is the owner of Spreading Flames Media, providing video/media production and writing services to the A/V/L, technology, architectural and hospitality industries. He has led audio, video and lighting teams in churches as both staff and a volunteer for over 10 years.
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By ellascott on March 16, 2018

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