Your guide to replacing the BenQ MP623 projector lamp

Written by
  • Shelagh M.
  • 12 years ago

BenQ_MP623_projector_BenQ_5J.Y1E05.001_projector_lampThis guide will help you replacing the BenQ MP623 projector lamp in just under 15 minutes.

When the  BenQ 5J.Y1E05.001 projector lamp is approaching end of life, the Lamp Indicator Light on the BenQ MP623 projector will light red. Messages warning about the  BenQ 5J.Y1E05.001 reaching end of life will also appear on screen in sequence.
If you notice your screen becoming dimmer or that the picture quality is poor with colors that are not accurate, this is also a sign that your BenQ 5J.Y1E05.001 projector lamp is approaching end of life. Replace the  BenQ 5J.Y1E05.001 immediately whenever you see these indications.

The importance of authentic  BenQ 5J.Y1E05.001 lamps

The Internet has been flooded with companies selling projector lamps. Many advertised their lamps as “generic and compatible” — a euphemism for a knock-off, copycat technology that produces an inferior and dangerous product. Don’t believe the cheap prices you see as there are hidden costs to installing generic lamps.
You get what you pay for and in the case of generic lamps it’s usually a long list of problems. Generic lamps look like a great bargain but these knock-off lamps are created with inferior materials making them susceptible to explosions when installed and they can damage the sensitive components in your BenQ MP623 projector. They’ve been created using toxic substances such as Krypton-85 (which is carcinogenic to humans). “Compatible” lamps also have a shorter life span so can actually cost more money in the long run.
Buying authentic guarantees a projector lamp created with genuine, non-hazardous materials by the original manufacturer. These lamps come with money-back guarantee and keeps your warranty entact. It’s worth the few extra dollars to eliminate potential problems and have a lamp built to work properly with your BenQ MP623 sensitive mechanisms. Learn more about spotting dangerous projector lamps by reading our article: 7 tips for spotting counterfeits.
Buy an authentic  BenQ 5J.Y1E05.001 projector lamp and save yourself unnecessary headaches.

Knowing when to replace: Warning Messages

The  BenQ 5J.Y1E05.001 projector lamp lamp has been in operation for 3000 hours. Install a new  BenQ 5J.Y1E05.001 projector lamp for optimal performance as soon as possible. If you have set the projector to run in Economic Mode, you can operate the projector with the current  BenQ 5J.Y1E05.001 projector lamp until the 3950 hour lamp warning screen appears.
The  BenQ 5J.Y1E05.001 projector lamp has been in operation for 3950 hours and is approaching end of life. A new  BenQ 5J.Y1E05.001 projector lamp should be fitted immediately. Scroll down for how-to instructions on replacing the BenQ 5J.Y1E05.001 projector lamp.
The  BenQ 5J.Y1E05.001 projector lamp has been in operation for 4000 hours and is approaching the end of its life. Replace the  BenQ 5J.Y1E05.001 projector lamp immediately if you notice the brightness level have diminished even before reaching hour 4000. When you see this screen warning you must replace the  BenQ 5J.Y1E05.001  lamp projector immediately.
Time is up! The  BenQ 5J.Y1E05.001 projector lamp is no longer functioning and must be replaced immediately in order for the BenQ MP623 projector projector to operate normally.

How to install a new BenQ 5J.Y1E05.001 projector lamp lamp

Before changing the BenQ 5J.Y1E05.001 projector lamp:

  • Reduce the risk of electrical shock by disconnecting the power cord on the MP623 projector.
  • Reduce the risk of severe burns by allowing the projector to cool for at least 45 minutes.


  • The lamp cover is found on the top of the projector. Using a screwdriver, loosen the screw holding the BenQ MP623 lamp cover in place.
  • Remove the lamp cover and place it to one side.


  • Be careful not to touch the inside of the BenQ MP623 projector where there is a sharp edge that can cut your fingers.



BenQ_MP623_projector_ lamp _installation_BenQ_5J.Y1E05.001_projector_lamp

  • Lower the new BenQ 5J.Y1E05.001 projector lamp first into the connector on the BenQ MP623 projector and then align the two holes on the projector.
  • BenQ_MP623_Lamp_Screw_Tightened_BenQ_5J.Y1E05.001_projector_lamp
  • Tighten the screw on the BenQ 5J.Y1E05.001 projector lamp.


  • Re-install the BenQ MP623projector  lamp cover
  • Tighten the screw.
  • Reset the total lamp operation timer.

NOTE: The BenQ 5J.Y1E05.001 projector lamp contains mercury and should not be thrown into regular garbage. Recycle your used lamps! If you bought from an authentic manufacturer they will recycle the lamp for you at no extra cost (another reason to buy authentic lamps).

Reset the lamp timer

It’s important to only reset the lamp timer when the BenQ 5J.Y1E05.001 projector lamp has been replaced. Resetting the lamp timer without changing the BenQ 5J.Y1E05.001 lamp can severely damage your BenQ MP623 projector.

  • Go to the Startup Logo and open the On-Screen Display menu (OSD).
  • Go to SYSTEM SETUP. Scroll down to ADVANCED. Press Enter.
  • The LAMP SETTINGS page will displays the Reset Lamp Timer screen
  • Highlight Reset and press ENTER.
  • The lamp time will be reset to ‘0’.

Do not reset if the lamp is not new or replaced as this could cause damage.

Extending the life of the BenQ 5J.Y1E05.001 projector lamp:

  • Keep your air filters clean to avoid overheating the projector.
  • Use the Lamp Power option on the BenQ MP623 and set to Economic Mode to reduce the amount of power used but extend lamp life.
  • Learn more with Top tips for extending DLP projector lamp life


An eco-friendly option

If you’re interested in saving some money and recycling, then try replacing just the BenQ 5J.Y1E05.001 bare bulb and re-using the plastic lamp cage. We have put together a step-by-step training video showing you just how easier it is to do.

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