How to change the BenQ MX812 projector lamp

Changing the BenQ MX812 projector lamp is a snap when you follow this guide.

Start off on the right foot with authentic

Start off this whole procedure with buying an authentic BenQ MX812 projector lamp. Generic prices are tempting but they end up causing you lots of problems including:

• shorter lamp life than original lamps
• no safeguards to protect your eyesight
• created with toxic materials including carcinogenic Krypton-85
• prone to explosions
• no calibrated properly so can damage the sensitive optics in your projectors
• no guarantee or refunds – you’re on your own with no technical support or refunds

Protect your health and keep your BenQ MX812 projector working at its optimum level. Always use an authentic BenQ 5J.J3J05.001 projector lamp.

Find this lamp on Amazon from these authorized dealers:

• BENQ 5J.J3J05.001 / Replacement Lamp
• BENQ 5J.J3J05.001 / Replacement Lamp
• BenQ 5J.J3J05.001 Replacement Lamp for MX760/MX761/MX812ST Projector
• BenQ 5J.J3J05.001 Projector lamp – 300 Watt – 2000 hour(s) (standard mode) / 3000 hour(s) (economic mode) – for BenQ MX760, MX761, MX812ST
• BenQ 5J.J3J05.001
• BenQ 5J.J3J05.001 Projector Cage Assembly with Ori

Know when projector lamp end of life is coming

To check how many hours the BenQ MX812  projector lamp has left, do the following:

• Press MENU/EXIT and then press MODE/ENTER to highlight the SYSTEM SETUP: Advanced
• Press to highlight Lamp Settings and press MODE/ENTER. The Lamp Settings page is displayed.
• You will see the Equivalent Lamp Hour information appearing on the menu.
• To leave the menu, press MENU/EXIT.
• You can also get the lamp hour information on the INFORMATION menu.

Setting the projector to economic mode will extend the projector lamp life.
A flashing orange light on BenQ MX812 projector indicates that the the BenQ 5J.J3J05.001 projector lamp is reaching end of life.  As the projector lamps gets closer to end of life, warning messages will begin to appear. You may also notice the image deteriorating or the color looking off. Change the projector lamp immediately when the final warning screen appears  or the projector will simply shut down.

Replacingthe BenQ 5J.J3J05.001 projector lamp

Before changing the lamp:

• Reduce the risk of electrical shock by disconnecting the power cord on the BenQ MX812 projector.
• Reduce the risk of severe burns by allowing the projector to cool for at least 45 minutes.

 
Loosen the screw holding the lamp cover onto the BenQ MX812 projector.

Lift up the cover. Remove and dispose of the lamp protection film. Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries.
 

Disconnect the projector lamp connector from the projector (Step #2 in diagram). Loosen the screw that secures the BenQ 5J.J3J05.001 projector lamp.
Slowly and gently pull the BenQ 5J.J3J05.001 projector lamp out of the projector. Pulling too quickly can cause the bulb to shatter. Learn what to do should the bulb shatter.
NOTE: The BenQ 5J.J3J05.001 projector lamp contains mercury and should not be thrown into regular garbage. Recycle your used lamps!
 
 
Insert the new BenQ 5J.J3J05.001 projector lamp first into the connector on the projector and reconnect the lamp connector.

Make sure the handle is fully locked. Tighten the projector lamp screw. If the screw is too loose or too tight, the projector may not turn on.
 
Re-install Epson MX812 lamp cover and tighten the screw.
Reset the total lamp operation timer
 

Reset the projector lamp counter

When the BenQ 5J.J3J05.001 projector lamp in the BenQ MX812 projector has been changed the projector lamp timer must be reset:

• Turn on the BenQ MX812ST projector.
• After the startup logo, open the On-Screen Display (OSD) menu.
• Go to the SYSTEM SETUP.
• Scroll over to Advanced > Lamp Settings menu.
• Press MODE/ENTER to display Lamp Settings page is displayed.
• Highlight Reset lamp timer. A warning message is displayed asking if you want to reset the lamp timer.
• Highlight Reset and press MODE/ENTER. The lamp time will be reset to “0”.

Extend the life of the BenQ 5J.J3J05.001 projector lamp last longer with the following tips:

• Keep your air filters clean to avoid overheating the projector.
• Use the Lamp Power option on the BenQ MX812ST projector lamp 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.

Green your BenQ MX812 projector lamp

The BenQ MX812 projector lamp has the option of replacing only the bulb instead of the entire BenQ 5J.J3J05.001 unit. You re-use the plastic cage and reduce waste. You can green your projector while saving money. Our instructional video shows you how step-by-step.