Your DYI guide to installing a new BenQ SP831 projector lamp

Written by
  • Shelagh M.
  • 12 years ago

BenQ_SP831_projector_BenQ_5J.J1Y01.001_projector_lampFollow our easy guide to a new BenQ 5J.J1Y01.001 projector lamp for your BenQ SP831 projector.

STEP 1: Buy the right projector lamp

It can be confusing trying to find the proper BenQ 5J.J1Y01.001 projector lamp for you BenQ SP831 projector. The Internet has been flooded with companies offering “compatible” generic lamps at bargain prices. These are NOT authentic lamps and should be avoided.

Generic lamps look like a great bargain but have a shorter life span so can actually cost more money in the long run. Knock-off “compatible” lamps are created with inferior materials making them susceptible to explosions when installed. They can also damage the sensitive components in your BenQ SP831 projector and expose you to toxic substances such as Krypton-85 (which is carcinogenic to humans).

Buying authentic guarantees a projector lamp created with genuine, non-hazardous materials by the original manufacturer. These lamps come with money-back guarantee and keep your warranty entact. It’s worth the few extra dollars to eliminate potential problems and hassles. Learn more about spotting dangerous projector lamps by reading our article: 7 tips for spotting counterfeits.
Say yourself hassles and protect your health — buy an authentic BenQ 5J.J1Y01.001 projector lamp.

BenQ-_5J.J1Y01_projector_lamp_bulb_replacementGo green

Looking for the less expensive, eco-friendly option? Want more information? Watch our step-by-step video on replacing only the BenQ 5J.J1Y01.001 bulb instead of the entire projector lamp housing.

STEP 2: Know when to replace

You can expect up to 4,000 hours of lamp life before you need to replace the projector lamp.
When it’s time to replace the projector BenQ 5J.J1Y01.001 lamp you notice the Lamp Indicator begins to blink red.
Warning messages will also begin appearing on screen letting you know how much longer you have before you must replace the BenQ 5J.J1Y01.001 projector lamp.

To obtain the projector lamp hour information:

BenQ_SP83_ lamp_hour_information_BenQ_5J.J1Y01.001_projector_lamp
1. Press MENU. Press the arrow key to highlight the Advanced Setup menu.
2. Highlight the Lamp option. Press ENTER to display the Lamp page.
3. Scroll down to highlight Lamp Hours. Press ENTER to display the Lamp Hours information page.
4. To leave the menu, press MENU.

Warning Messages

As the BenQ 5J.J1Y01.001 projector lamp reaches its end of life, warning messages will also begin appearing on screen letting you know how much longer you have before you must replace the BenQ 5J.J1Y01.001 projector lamp.
BenQ _SP831_Lamp_Warning_1_BenQ 5J.J1Y01.001_projector_lamp

First Warning Screen:

The BenQ 5J.J1Y01.001 lamp projector has been in operation for 3000 hours and a new lamp should be installed as soon as possible. If you have set the projector lamp on ECO mode you can continue using the projector until the 3950 hour lamp warning is shown.
BenQ SP831 second lamp warning screen, BenQ 5J.J1Y01.001 lamp

Second Warning Screen:

The BenQ 5J.J1Y01.001 lamp has been in operation for 3950 hours. It is strongly recommended that you replace the lamp especially if you notice that the brightness level has diminished drastically.
BenQ SP831 final lamp warning, BenQ 5J.J1Y01.001 lamp

Final Warning Screen:

The BenQ 5J.J1Y01.001 lamp has reached its end of life. The projector will shut down and not operate until a new BenQ 5J.J1Y01.001 lamp has been installed.

Step 3: Replacing the BenQ 5J.J1Y01.001 lamp

Before replacing the BenQ 5J.J1Y01.001 lamp:

  • Reduce the risk of electrical shock by disconnecting the power cord on the BenQ SP831 projector.
  • Reduce the risk of severe burns by allowing the projector to cool for at least 45 minutes. The BenQ SP831 operates under high temperatures.

BenQ SP831 lamp cover screw, BenQ 5J.J1Y01.001 lamp

  • Protect the BenQ SP830 projector’s top surface by placing it face down on a soft surface. Turn the projector over and loosen the screws on the lamp cover.

BenQ SP831 lamp cover off, BenQ 5J.J1Y01.001 lamp

  • Remove the lamp cover. Put the cover to one side making sure not to loose the screw.

BenQ SP831 lamp screw out, BenQ 5J.J1Y01.001

  • Loosen the screw holding the BenQ 5J.J1Y01.001 lamp in place. A magnetic-head screwdriver will make it easier to remove the screw.

BenQ SP831 lamp out, BenQ 5J.J1Y01.001

BenQ SP831 lamp connectors, BenQ 5J.J1Y01.001

  • Hold the new BenQ 5J.J1Y01.001 lamp and align the two locators on the lamp with the holes on the projector. Once aligned, then insert the lamp
    all the way into the projector.

BenQ SP831 lamp screw out, BenQ 5J.J1Y01.001

  • Tighten the screw that secures the BenQ 5J.J1Y01.001 lamp. A loose screw may cause a bad connection while a over tightened screw may cause the lamp to not work. Ensure the wire handle is fully flat and locked in place.

BenQ SP831 lamp cover on, BenQ 5J.J1Y01.001

  • Replace the lamp cover on the BenQ SP830 projector.
  • Tighten the screws that secure the lamp cover and restart the projector to reset the lamp timer.

NOTE: The BenQ 5J.J1Y01.001 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 timer

It’s important to set the lamp timer so the BenQ SP831 can accurately track the life of the newly installed BenQ 5J.J1Y01.001 lamp.
BenQ SP830 lamp reset menu, BenQ 5J.J1Y01.001

  • After the startup logo, press MENU and then press the down arrow key until the Advanced Setup menu is highlighted.
  • Scroll down to highlight Lamp and press ENTER. The Lamp page will display.


  • Scroll down to highlight Reset Lamp Timer and press ENTER.
  • A warning message displays asking if you want to reset the lamp timer.

BenQ SP830 lamp reset message, BenQ 5J.J1Y01.001

  • 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.


Extend the life of the BenQ 5J.J1Y01.001 lamp:

  • Keep your air filters clean to avoid overheating the BenQ SP831 projector.
  • Setting Lamp Power to Economic Mode. To set the Econo Mode: Go into the SYSTEM SETUP: Advanced > Lamp Settings > Lamp Mode.
  • Learn more with Top tips for extending DLP projector lamp life.


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