How to fix the nut projector with only red light?

If the nut projector only has a red light, there may be the following reasons:

1. bulb failure: the bulb is a very important part when using the projector. If the light bulb is faulty or aging, the projector only emits red light. The solution is to replace the light bulb.

2. Lens problem: If the lens is dirty or damaged, it may also cause the projector to emit red light. You can clean the dirt on the lens or replace the lens.

3. Signal line failure: If the signal line is loose or damaged, the projector can't receive the signal normally, and only emits red light. You can try plugging and unplugging the signal line again or replacing the signal line.

4. Hardware problem: Sometimes the failure of the projector's motherboard or other hardware may also lead to this situation. The projector needs to be sent to a professional maintenance point to repair or replace the hardware.

In a word, to fix the problem that the nut projector only has a red light, it is necessary to analyze the reasons according to the specific situation and take corresponding measures to solve the problem. If you can't fix it yourself, you can consider seeking professional technical support.