What to do if the projector does not turn on

These very expensive products are designed to broadcast various images on the screens. Often they are used to showcase products at presentations, training materials at seminars and conferences. Sometimes an unforeseen situation happens: the projector does not turn on, which jeopardizes the event. What should I do in this case, and what malfunctions of the projectors are encountered especially often?

Common faults and their causes

As the statistics show, often the malfunctions of the projectors are associated with violations of the temperature mode of the lamp, with which the image is projected onto a large screen canvas. This is due to the fact that the lamp heats up quite strongly, and the cooling system of the device does not cope - temperature sensors are triggered, the signal to turn on the lamp is blocked,The image on the screen disappears. Such a nuisance can occur with any technique, be it Benq or InFocus projectors.

All models have an independent diagnostic system - it constantly monitors the stability of all components and parts, instantly blocking the supply of electricity to the lamp when the temperature rises.

Consider the most common problems with projectors and possible solutions.

1. The projector has been working for a long time, and then did it turn off on its own? Accumulated foreign particles interfere cooling system work productively. It is necessary to clean this system and optics, carefully remove dust from the motherboard - an embedded computer that controls all the main processes.
   

2. When you turn on the product, an image appears on the screen, but it looks dim and a bit blurry around the edges, and then the signal disappears - the problem is in the lamp, you need to change it.
3. If the projector began to work incorrectly, does not show, or rather, does not transfer the picture to the screen, then the reason lies in ballastwhich provides high voltage to the incandescent lamp. By the way, the latter is also worth checking out.
4. Appear on a colored or white background. color spots - This is the first signal that the optical system of the product must be cleaned. It is impossible to delay with this - you may need to repair the projector, which is usually expressed in the replacement of the lamp, and its cost is rather big. So, for a BenQ MS500 projector, the cost starts from 5 thousand rubles, and for InFocus 4805 - from 8 thousand. The state of the environment has a strong influence on the state of optics. It must be remembered that projectors are very gentle devices, dust, and especially cigarette smoke, have a strong influence on their systems, so where they often smoke and rarely vacuum clean, these products often fail.
   

Do not forget that different laptops are connected to the projector, which may have different image settings - so the final image on a large canvas may be of poor quality.

To ensure that the product works stably, never forget about the prevention of individual components and systems.

Methods of self-diagnostics device

Quite often there are cases when a properly-looking device, when connected to a home electrical outlet, is not going to get involved in work: the indicator is off, the product does not show signs of "life".The reasons for this behavior are different:

• happened mechanical damage to the protective cover projection lamp - this can happen when replacing or self-repair;
• similar changes to internal parts or assemblies;
• violations in the built-in computer or motherboard.

When there is a failure of the projectors described above, different devices may behave differently: the indicator LEDs flash, the fans are noisy, then everything stops and the projector turns off. Before calling the diagnostic center or decide to show the projector to the master - try to make a simple check yourself.

1. The buttons do not respond to touch? Examine the cable and the power filter: you may have closed the lamp cover loosely.
2. The fan works, but the product does not work, while lamp is on - Thermal sensor is broken.
3. The product itself informs about malfunctions and generates error signals when there is no connection, blocks the lamp - the guarantee of safe operation is over.
4. If the product is working, and then suddenly shut down, then overheating or malfunction has occurred. temperature sensor. It is possible that dust and impurities interfere with the operation of the cooling system; cleaning of filters is required.

Quite often, similar equipment does not work due to incorrect operation by users or power surges in the urban power grid. Elimination of any complex problems should be carried out only with the help of qualified specialists. Intervention by non-professional craftsmen, self-dismantling of expensive equipment causes mechanical damage to internal components and parts - the cost of subsequent repairs can increase significantly. If you have any incomprehensible problems, then immediately call the service center, experts will arrive, diagnose and eliminate the causes of the failure.