Why Does My Overhead Projector Preserve Blowing Lamps?


Over the previous 25 years I’ve had the distinctive alternative to speak instantly with lots of the professionals and instructors who use Overhead Projectors as an integral a part of their career. The tales they’ve shared with me have given me direct perception to a number of the most typical issues skilled by house owners of immediately’s and yesterday’s Overhead Projectors.

I want to share this distinctive compilation of data with a sequence of articles derived instantly from a number of the most typical questions and complaints that I obtain from my shoppers within the Audio Visible Trade.

The very first thing that involves my thoughts is the query that I’m requested virtually on daily basis; “My Overhead Projector retains blowing lamps, what might be the issue?”

Most of immediately’s Overhead Projectors use projection lamps that require 82 volts to function. As a result of the AC outlet that you simply plug your Overhead Projector into is 120 volts, a particular digital element is required to create the 82 volts wanted to function the projection lamp. This digital element is named a diode (rectifier).

When the diode (rectifier) of your Overhead Projector turns into faulty, it permits the road voltage of 120 volts to go on to the 82 volt lamp. This extra voltage is an excessive amount of for the projection lamp to deal with, when the consumer turns the overhead projector on, the projection lamp will burn out in a matter of seconds because of this extreme voltage. In some instances the tip consumer will place a number of new lamps into the Overhead Projector earlier than they understand that the issue just isn’t a faulty projection lamp.

You probably have a primary information of Electronics or primary wiring the diode is one thing that the majority finish customers can substitute themselves, in any other case this drawback needs to be dealt with by an expert service technician.

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