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How To Replace The Lamp/Bulb On My Projector

Bulb replacement of a projector

With projection technology becoming so common nowadays in many different settings e.g. professional, educational and home entertainment, there are some technicalities and maintenance aspects that you may have to deal with, especially if you have a multimedia or home theatre projector.

The light bulb of the projector is an essential component for its functionality. When the projector goes off and burns out, it’s not just the wiring and case system that fail but its bulb too, which is responsible for activating the displayed image. In the majority of cases, you will know when it’s time to replace your projector’s bulb by an indicator/sign that notifies you to replace your lamp soon before it burns out completely. This is possible through an internal timer, which is found in most of the latest models launched over the past few years. Another possible indicator that you may need to replace your projector’s lamp is when the images appear darker and less bright. If you are still not sure, you may call an expert to check your device and replace your lump if necessary.

Now, many folks wonder if they need to replace only their old lamp or the entire plastic housing unit that hosts the lamp. Most experts agree that if you are going DIY and your projector model has a housing unit for the lamp, it’s more efficient and easier to replace the entire housing bulb unit. In this case, the process for replacing your bulb housing unit is as follows:

No.1: Make sure your projector is switched off and cool down (if you have used it a few moments before) before starting, you’ll risk damaging the unit.

No.2: Locate the bulb cover on the projector, loosen up the screws, and take off the housing’s cover. Use preferably a matching screwdriver to release the screws that link the housing unit with the projector. You don’t have to take them all off, just the ones attached to the unit.

No.3: Take out the metal or plastic handle of the housing unit.

No.4: Hold the device firmly and carefully release the bulb housing by moving its handle. In case that it doesn’t come out easily, use a screwdriver to loosen it.

No.5: Prepare your new bulb hosting unit. If you have gotten a bulb only without a housing unit, you need to attach the light bulb to its old housing first.

No.6: Wipe the glass layer of the housing unit with a small wet cloth and the exposed part of the bulb (if it’s exposed).

No.7: Attach the new housing into the projector’s original housing spot. Make sure that its handle is fixed in its original spot as well.

No.8: Tighten and set the screws that keep the bulb hosting unit steadily in place.

No.9: Attach the cover on the bulb housing and seal/fasten in place. This step is crucial as without the cover being set in place, the projector will simply fail to start.

No.10: Readjust the bulb’s hours of operation (the lamp counter) to zero. You may find how to do this by checking the instruction manual of your model or by googling your model to get instructions.

No.11: Plug the device on (if you plan to use it right away) or keep it switched on.

The steps involved may appear many, but if you have some experience doing similar electronic replacement jobs, it’s a matter of 5 minutes.

Now in case you just want to replace a bare bulb only (in old housing), the process is as follows:

  1. Detach the original bulb housing so you can remove the original lamp. Wipe off any dust or debris.
  2. Examine the way connectors are attached to the original lamp.
  3. Dismantle the original power supply wires from the previous bulb. If you can’t unscrew them, you must trim them off as close to the lamp as possible.
  4. Take off the original bulb and set the new bulb in place securely.
  5. Connect the new power cables to the new bulb. In case you have trimmed them off previously, you have to attach an electrical eyelet to the end of the power cable and screw it into the lug that it comes with a fitting screw.
  6. Assemble the lamp housing unit and keep it in place, according to the steps for replacing the entire unit above.

Given that everything is in place, your projector will now be totally functional and its lamp will last up to 2000 hours (depending on the model). This means that on average and given that you use your projector on a semi-regular basis (2~3 a week), you won’t need to replace your lamp for 3+ years.