How to replace the projector lamp in the BenQ MP720 projector

Written by
  • Shelagh M.
  • 12 years ago

BenQ MP720 projector, BenQ 5J.J1S01.001 lampReplace the BenQ 5J.J1S01.001 projector lamp in your BenQ MP720 projector by following our guide.

When the BenQ MP720 is in operation, the number of hours of lamp life is automatically calculated by the built-in timer. You can expect up to 3,000 hours from the BenQ 5J.J1S01.001 before it needs to be replaced.

Purchase authentic lamps

Be sure the purchase an authentic BenQ 5J.J1S01.001 projector lamp for your BenQ MP720 projector. Although generic lamps seem like a bargain, you avoid knock-off “compatible” lamps. You get what you pay for and in the case of generic lamps it’s usually a long list of problems:

Save yourself unnecessary headaches and buy an authentic BenQ 5J.J1S01.001 projector lamp from a recognized dealer. You’ll be getting a far superior product with a replacement guarantee and tech support

Looking for the less expensive, eco-friendly option? Want more information? Watch our step-by-step video on replacing only the BenQ 5J.J1S01.001 bulb instead of the entire lamp housing.

When to replace

You’ll have plenty of notice when it’s time to replace the BenQ 5J.J1S01.0011 lamp. When it approaches end of  life the BenQ MP720 projector’s lamp indicator will light red and the following warning messages will appear on screen.
BenQ MP720 projector, BenQ 5J.J1S01.001 warning Message-1
First Warning: TheBenQ 5J.J1S01.001 lamp has been in operation for 2800 hours. If you have turned on Economy Mode, on your BenQ MP720 projector, you can continue using the lamp until it reaches 2950 hours of usage.
BenQ MP720 projector, BenQ 5J.J1S01.001 warning Message-2
Second Warning: The BenQ 5J.J1S01.001 lamp has been in operation for 2950 hours. Replace the lamp as soon as possible to keep the BenQ MP720 projector working at optimum levels.
BenQ MP720 projector, BenQ 5J.J1S01.001 warning Message-3
Third warning: The BenQ 5J.J1S01.001 lamp has been in operation for 3000 hours. You’ll see this message for 30 seconds along with the LAMP indicator lighting up red for 40 seconds. Replace the lamp immediately before using the BenQ MP720 projector.
BenQ MP720 projector, BenQ 5J.J1S01.001 warning Message-FINAL
Final warning: You’re out of time! The BenQ 5J.J1S01.001 has reached end of life. The projector will shutdown in 40 seconds. The lamp MUST be replaced immediately before the BenQ MP720 projector will turn back on.

How to install the new BenQ 5J.J1S01.001 lamp

Before changing the lamp:

  • Reduce the risk of electrical shock by disconnecting the power cord on the BenQ MP720 projector lamp.
  • Reduce the risk of severe burns by allowing the projector to cool for at least 45 minutes. The BenQ MP720 projector operates under extremely high temperatures and there is the risk of burning yourself if you don’t allow it to cool down.

BenQ MP720 cover screw, BenQ 5J.J1S01.001projector lamp

  • The lamp cover is found on the bottom of the projector. Turn the projector over onto soft surface to protect the top of the projector. Loosen the screw  holding the BenQ MP720 lamp cover in place. (Use a magnetic screwdriver to make the whole process easier.)

BenQ MP720 lamp cover off, BenQ 5J.J1S01.001 lamp

  • Remove the lamp cover and place it to one side.

BenQ MP720 lamp connectors out, BenQ 5J.J1S01.001 lamp

  • Gently disconnect the lamp connectors by pinching on the top and pulling them out. pulling on them

BenQ MP720 lamp unscrewed, BenQ 5J.J1S01.001

  • Loosen the screw on the BenQ 5J.J1S01.001 lamp. Be sure not to loose the screw as the projector will not turn on unless the lamp is properly secured into the projector. Using a magnetic-head screwdriver will ensure you don’t accidentally drop the screw into the projector!

BenQ MP720 lamp out, BenQ 5J.J1S01.001 lamp

BenQ MP720 lamp installed, BenQ 5J.J1S01.001 lamp

  • Hold the new BenQ 5J.J1S01.001 lamp by the sides and align the two locators on the bottom of the lamp with the holes in the BenQ MP720 projector lamp (they look like little feet). Push the BenQ 5J.J1S01.001 lamp down all the way into the  projector.

BenQ MP720 lamp connectors in, BenQ 5J.J1S01.001 lamps

  • Re-connect the lamp connectors to the BenQ MP720 projector.

BenQ MP720 lamp cover on, BenQ 5J.J1S01.001 projector

  • Re-install the BenQ CP120C lamp cover and tighten the lamp cover screw screw.
  • Reset the total lamp hour timer.

NOTE: The BenQ 5J.J1S01.001 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!

Resetting the Lamp Hour Timer

It’s important to only reset the lamp timer when the BenQ 5J.J1S01.001 lamp has been replaced. Resetting the lamp timer without changing the BenQ 5J.J1S01.001 lamp can cause significant harm to your BenQ MP720 projector.
BenQ CP220 Lamp Reset, BenQ 5J.J1S01.001 lamp

  • Press and hold the Exit 5 button on the BenQ MP720 projector for 5 seconds to display the total used lamp time.
  • Press Auto on the projector or on the remote control to reset the Lamp Hour to “0”.
  • Wait about 5 seconds to let the on screen display (OSD) disappear.
  • Only reset the Lamp Hour when a new lamp has been installed in order that the life BenQ 5J.J1S01.001 can be properly tracked and prevent the projector shutting down unexpectedly.


Extending the life of the BenQ 5J.J1S01.001 lamp:

  • Keep your air filters clean to avoid overheating the projector.
  • Use the Lamp Power option on the BenQ MP720 projector 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.


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