BenQ Projector MX726 User Manual
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Maintenance61 Timing of replacing the lamp When the Lamp indicator lights up red or a message appears suggesting it is time to replace the lamp, please install a new lamp or consult your dealer. An old lamp may cause a malfunction in the projector and in some instances the lamp may explode. Go to http://www.benq.com for a replacement lamp. The Lamp indicator light and Temperature warning light will light up if the lamp becomes too hot. Turn the projector off and let the projector cool for 45 minutes. If the lamp or Temp indicator still lights up after turning the power back on, please contact your dealer. See Indicators on page 65 for details. The following lamp warning displays will remind you to change the lamp. The warning messages below are for reference only. Please follow the actual on-screen instructions to prepare and replace the lamp. StatusMessage Install a new lamp for optimal performance. If the projector is normally run with Economic selected (See Setting Lamp mode as Economic or SmartEco on page 60), you may continue to operate the projector until the next lamp warning appears. Press MODE/ENTER to dismiss the message. It is strongly recommended that you replace the lamp at this age. The lamp is a consumable item. The lamp brightness diminishes with use. This is normal lamp behavior. You can replace the lamp whenever you notice that the brightness level has significantly diminished. Press MODE/ENTER to dismiss the message. The lamp MUST be replaced before the projector will operate normally. Press MODE/ENTER to dismiss the message.
Maintenance 62 Replacing the lamp • If lamp replacement is performed while the projector is suspended upside-down from the ceiling, make sure that no one is underneath the lamp socket to avoid any possible injury or damage to the human eyes caused by fractured lamp. • To reduce the risk of electrical shock, always turn the projector off and disconnect the power cord before changing the lamp. • To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before replacing the lamp. • To reduce the risk of injuries to fingers and damage to internal components, use caution when removing lamp glass that has shattered into sharp pieces. • To reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp compartment when the lamp is removed. • This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a proper manner. • To assure optimal performance from the projector, it is recommended that you purchase a BenQ projector lamp for lamp replacement. • Ensure good ventilation when handling broken lamps. We recommend that you use respirators, safety glasses, goggles or face shield and wear protective clothing such as gloves. 1. Turn the power off and disconnect the projector from the wall socket. If the lamp is hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled. 2. Loosen the captive screws from the left and rear side. 3. Remove the lamp compartment cover as shown. 4. Disconnect the lamp connector from the projector as illustrated.
Maintenance63 5. Loosen the two captive screws that secure the lamp. • Do not turn the power on with the lamp cover removed. • Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries. 6. Lift the handle so that it stands up. Use the handle to slowly pull the lamp out of the projector. • Pulling it too quickly may cause the lamp to break and scatter broken glass in the projector. • Do not place the lamp in locations where water might splash on it, children can reach it, or near flammable materials. • Do not insert your hands into the projector after the lamp is removed. If you touch the optical components inside, it could cause color unevenness and distortion of the projected images. 7. Insert the new lamp into the lamp compartment and make sure it fits in the projector. • Ensure the connectors are aligned. • If you experience resistance, lift the lamp and start again. 8. Tighten the screws that secure the lamp. 9. Ensure the handle is fully laid flat and locked in place. • Loose screw may cause a bad connection, which could result in malfunction. • Do not over tighten the screw.
Maintenance 64 12. Restart the projector. Do not turn the power on with the lamp cover removed. Resetting the lamp timer 13. After the startup logo, open the On-Screen Display (OSD) menu. Go to the SYSTEM SETUP: Advanced > Lamp Settings menu. Press MODE/ENTER. The Lamp Settings page displays. Highlight Reset lamp timer. A warning message displays asking if you want to reset the lamp timer. Highlight Ye s and press MODE/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. 10. Connect the lamp connector properly and place as drawing before lamp compartment cover installation back. • Lamp connector must be installed flush with the connector base as shown in the image below. A gap between the lamp connector and the connector base will cause damage to the projector. The following images illustrate correct and incorrect lamp connector installations. 11. Replace the lamp compartment cover on the projectorand tighten the captive screw. No gap Gap Correct Incorrect
Maintenance65 Indicators LightStatus & Description Pow e rTe m pLamp Pow e r ev e n t s Orange Off OffStand-by mode Green FlashingOff Off Powering up Green Off OffNormal operation Orange FlashingOff Off Projector is cooling. Lamp events Off Off Orange FlashingThe lamp ignition is not lit up. Off Off Red1. The projector needs 90 seconds to cool down. Or 2. Please contact your dealer for assistance. Thermal events Red Red Off The fans are not working.The projector has shutdown automatically. If you try to re-start the projector, it will shutdown again. Please contact your dealer for assistance. Red Red FlashingOff Red Green Off Red Green FlashingOff Green Red OffTemperature 1 error (over limited temperature). Green Red FlashingOff Thermal sensor 1 open error. Green Green OffThermal sensor 1 short error. Green Green FlashingOff Thermal IC #1 I2C connection error. Green Red RedThermal break error.
Maintenance 66 System events Green Off Red The projector has shutdown automatically. If you try to re- start the projector, it will shutdown again. Please contact your dealer for assistance. Red FlashingOff Off Red Off Red Off Green RedLamp door is open. Please check if the lamp door is open or not closed properly. Green Off OrangeLamp life exhausted. Red Off OffDownload. Off Red OffLAN download fail. Off Green OffLAN download processing.
Troubleshooting67 Troubleshooting The projector does not turn on. No picture. Blurred image. Remote control does not work. The password is incorrect. CauseRemedy There is no power from the power cable.Plug the power cord into the AC inlet on the projector, and plug the power cord into the power outlet. If the power outlet has a switch, make sure that it is switched on. Attempting to turn the projector on again during the cooling process.Wait until the cooling down process has completed. CauseRemedy The video source is not turned on or connected correctly.Turn the video source on and check that the signal cable is connected correctly. The projector is not correctly connected to the input signal device.Check the connection. The input signal has not been correctly selected.Select the correct input signal with the SOURCE key on the projector or remote control. CauseRemedy The projection lens is not correctly focused.Adjust the focus of the lens using the focus ring. The projector and the screen are not aligned properly.Adjust the projection angle and direction as well as the height of the unit if necessary. The lens cover is still closed. Open the lens cover. CauseRemedy The battery is out of power. Replace the battery with new one. There is an obstacle between the remote control and the projector.Remove the obstacle. You are too far away from the projector. Stand within 7 meters (23 feet) of the projector. CauseRemedy You do not remember the password.Please see Entering the password recall procedure on page 31 for details.
Specifications 68 Specifications Projector specifications All specifications are subject to change without notice. Optical Resolution MX726 1024 x 768 MW727 1280 x 800 Display system Single-chip DLP™ system Lens F/Number F=2.59 to 2.91, f=16.87 to 21.87mm Lamp 280W lamp Electrical Power supply AC100-240V 50-60 Hz (Automatic) 3.9A Power consumption 390W (Max); < 0.5W (Standby) Mechanical Weight 7.28 lbs (3.3 Kg) Output terminals Speaker (Mono) 10 watt x 1 Audio signal output PC audio jack x 1 Monitor Out D-Sub 15-pin (female) x1 USB TYPE-A (5V/1.5A) Control USB MINI-B RS-232 serial control 9 pin x 1 IR receiver x 2 12V TRIGGER 12VDC (Max. 0.5 A) x 1 LAN control RJ45 x 1 Input terminals Computer input RGB input D-Sub 15-pin (female) x 2 Video signal input S-VIDEO Mini DIN 4-pin port x 1 VIDEO RCA jack x 1 SD/HDTV signal input Digital - HDMI-2 x 1 Digital - HDMI-1/MHL x 1 Audio signal input Audio in PC audio jack x 1 RCA audio jack (L/R) x 1 MIC PC audio jack x 1 Environmental Requirements Operating temperature 0°C–40°C at sea level Operating relative humidity 10%–90% (without condensation) Operating altitude 0–1499 m at 0°C–35°C 1500–3000 m at 0°C–30°C (with High Altitude Mode on)
Specifications69 Dimensions 314.2 mm (W) x 116 mm (H) x 216.3 mm (D) 314.2 216.3314.2 51.2116.065.2 45.6 76.0 109.0 71.090.5 537.9577.7636.9 81.8 314.2216.3 Ceiling Mount Installation*Ceiling Mount Screws: M4 (Max. L=25, Min. L=20)Unit: mm
Specifications 70 Timing chart Supported timing for PC input Resolution ModeRefresh rate (Hz)H- frequency (kHz)Clock (MHz)3D Field Sequential3D over- under3D side- by-side 800 x 600 640 x 480720 x 400 1024 x 768 1152 x 864 1024 x 576 1024 x 600 1280 x 720 1280 x 768 1280 x 800 1280 x 1024VGA_60 VGA_72 VGA_75 VGA_85 720 x 400_70 SVGA_60 SVGA_72 SVGA_75 SVGA_85 XGA_60 XGA_70 XGA_75 XGA_85 1152 x 864_75 BenQ NB Timing BenQ NB Timing 1280 x 720_60 1280 x 768_60 WXGA_60 WXGA_75 WXGA_85 SXGA_60 SXGA_75 SXGA_85 SVGA_120 (Reduce Blanking) XGA_120(Reduce Blanking) WXGA_120(Reduce Blanking) 59.940 72.809 75.000 85.008 70.087 60.317 72.188 75.000 85.061 119.854 60.004 70.069 75.029 84.997 119.989 75.00 60.00 64.995 60 59.870 59.810 74.934 84.880 119.909 60.020 75.025 85.02431.469 37.861 37.500 43.269 31.469 37.879 48.077 46.875 53.674 77.425 48.363 56.476 60.023 68.667 97.551 67.500 35.820 41.467 45.000 47.776 49.702 62.795 71.554 101.563 63.981 79.976 91.14625.175 31.500 31.500 36.000 28.3221 40.000 50.000 49.500 56.250 83.000 65.000 75.000 78.750 94.500 115.500 108.000 46.996 51.419 74.250 79.5 83.500 106.500 122.500 146.25 108.000 135.000 157.500 èèè èèè è èèè èèè èèè è èèè èè è