BenQ Th681 Digital Projector User Manual
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Maintenance 51 The Lamp Settings page appears. Highlight Reset Lamp Timer. A warning message appears asking if you want to reset the lamp timer. Highlight Reset 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.
Maintenance 52 Indicators LightStatus & Description Powe r ev e n t s Orange Off OffStand-by mode. Green FlashingOff OffPowering up. Green Off OffNormal operation. Orange FlashingOff OffNormal power-down cooling Red Off OffDownload Green Off RedCW start fail Red Flashing Off OffScaler shutdown fail (data abort) Lamp events Off Off RedLamp1 error in normal operation Off OffOrange FlashingLamp is not lit up Thermal events Red Red OffFan 1 error (the actual fan speed is +25% outside the desired speed) RedRed FlashingOffFan 2 error (the actual fan speed is +25% outside the desired speed) Red Green OffFan 3 error (the actual fan speed is +25% outside the desired speed) RedGreen FlashingOffFan 4 error (the actual fan speed is +25% outside the desired speed) Green Red OffTemperature 1 error (over limited temperature) GreenRed FlashingOffThermal Sensor 1 open error Green Green OffThermal Sensor 1 short error GreenGreen FlashingOffThermal IC #1 I2C Connection error Green FlashingRed OffTemperature 2 error (over limited temperature) Green FlashingRed FlashingOffThermal Sensor 2 open error Green FlashingGreen OffThermal Sensor 2 short error Green FlashingGreen FlashingOffThermal IC #2 I2C Connection error
Troubleshooting 53 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 cord.Plug the power cord into the AC power jack 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. The lens cover is still closed. Open the lens cover. 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 projector if necessary. The lens cover is still closed. Open the lens cover. CauseRemedy The battery is out of power. Replace the battery with new ones. There is an obstacle between the remote control and the projector.Remove the obstacle. You are too far away from the projector. Stand within 8 meters (26 feet) of the projector. CauseRemedy You do not remember the password.Please see Entering the password recall procedure on page 23 for details.
Specifications 54 Specifications Projector specifications All specifications are subject to change without notice. Optical Resolution 1920 (H) x 1080 (V) Display system 1-CHIP DMD Lens F/Number F = 2.59 ~ 2.87, f = 16.88 ~ 21.88 mm Lamp 210 W lamp Electrical Power supply AC100–240V, 3.1 A, 50–60 Hz (Automatic) Power consumption 315 W (Max); < 0.5 W (Standby) Mechanical Weight 2.8 Kg (6.39 lbs) Output terminals RGB output D-Sub 15-pin (female) x 1 Speaker (Stereo) 10 watt x 1 Audio signal output PC audio jack x 1 Control RS-232 serial control 9 pin x 1 IR receiver x 2 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 Analog - Component (through RGB input) Digital - HDMI x 1 Audio signal input Audio in RCA audio jack (L/R) x 2 PC audio jack x 1 USB port (Mini-B 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)
Specifications 55 Dimensions 311.81 mm (W) x 104.7 mm (H) x 244.12 mm (D) Ceiling mount installation 311.81 244.12 104.7 Unit: mm 626.11 582.2 537.9 25 95.21 168.59 239.77 111.28 311.58 137160 115 127.7 80 Ceiling Mount screw: M4 (Max L = 25 mm; Min L = 20 mm) Unit: mm
Specifications 56 Timing chart Supported timing for PC input • *Supported timing for 3D signal in Frame Sequential, Top Bottom and Side by Side formats. **Supported timing for 3D signal in Frame Sequential format. ***Supported timing for 3D signal in Top Bottom and Side by Side format. ResolutionMode Ve r t i c a l Frequency (Hz)Horizontal Frequency (kHz)Pixel Frequency (MHz) 640 x 480VGA_60* 59.940 31.469 25.175 VGA_72 72.809 37.861 31.500 VGA_75 75.000 37.500 31.500 VGA_85 85.008 43.269 36.000 720 x 400 720 x 400_70 70.087 31.469 28.3221 800 x 600SVGA_60* 60.317 37.879 40.000 SVGA_72 72.188 48.077 50.000 SVGA_75 75.000 46.875 49.500 SVGA_85 85.061 53.674 56.250 SVGA_120** (Reduce Blanking)119.854 77.425 83.000 1024 x 768XGA_60* 60.004 48.363 65.000 XGA_70 70.069 56.476 75.000 XGA_75 75.029 60.023 78.750 XGA_85 84.997 68.667 94.500 XGA_120** (Reduce Blanking)119.989 97.551 115.5 1152 x 864 1152 x 864_75 75 67.5 108 1024 x 576BenQ Notebook_timing60.0 35.820 46.966 1024 x 600BenQ Notebook_timing64.995 41.467 51.419 1280 x 720 1280 x 720_60* 60 45.000 74.250 1280 x 768 1280 x 768_60* 59.87 47.776 79.5 1280 x 800WXGA_60* 59.810 49.702 83.500 WXGA_75 74.934 62.795 106.500 WXGA_85 84.880 71.554 122.500 WXGA_120** (Reduce Blanking)119.909 101.563 146.25 1280 x 1024SXGA_60*** 60.020 63.981 108.000 SXGA_75 75.025 79.976 135.000 SXGA_85 85.024 91.146 157.500 1280 x 9601280 x 960_60*** 60.000 60.000 108.000 1280 x 960_85 85.002 85.938 148.500 1360 x 768 1360 x 768_60*** 60.015 47.712 85.5 1440 x 900 WXGA+_60*** 59.887 55.935 106.500 1400 x 1050 SXGA+_60*** 59.978 65.317 121.750 1600 x 1200 UXGA*** 60.000 75.000 162.000 1680 x 1050 1680x1050_60*** 59.954 65.29 146.25 640 x 480@67Hz MAC13 66.667 35.000 30.240 832 x 624@75Hz MAC16 74.546 49.722 57.280 1024 x 768@75Hz MAC19 74.93 60.241 80.000 1152 x 870@75Hz MAC21 75.060 68.680 100.000
Specifications 57 • The timings showing above may not be supported due to EDID file and VGA graphic card limitations. It is possible that some timings cannot be chosen. Supported timing for HDMI (HDCP) input • *Supported timing for 3D signal in Frame Sequential, Top Bottom and Side by Side formats. **Supported timing for 3D signal in Frame Sequential format. ***Supported timing for 3D signal in Top Bottom and Side by Side formats. ResolutionModeVe r t i c a l Frequency (Hz)Horizontal Frequency (kHz)Pixel Frequency (MHz) 640 x 480VGA_60* 59.940 31.469 25.175 VGA_72 72.809 37.861 31.500 VGA_75 75.000 37.500 31.500 VGA_85 85.008 43.269 36.000 720 x 400 720 x 400_70 70.087 31.469 28.3221 800 x 600SVGA_60* 60.317 37.879 40.000 SVGA_72 72.188 48.077 50.000 SVGA_75 75.000 46.875 49.500 SVGA_85 85.061 53.674 56.250 SVGA_120** (Reduce Blanking)119.854 77.425 83.000 1024 x 768XGA_60* 60.004 48.363 65.000 XGA_70 70.069 56.476 75.000 XGA_75 75.029 60.023 78.750 XGA_85 84.997 68.667 94.500 XGA_120** (Reduce Blanking)119.989 97.551 115.5 1152 x 864 1152 x 864_75 75 67.5 108 1280 x 768 1280 x 768_60* 59.87 47.776 79.5 1024 x 576@60HzBenQ Notebook Timing60.00 35.820 46.996 1024 x 600@65HzBenQ Notebook Timing64.995 41.467 51.419 1280 x 720 1280 x 720_60*60 45.000 74.250 1280 x 768 1280 x 768_60*59.870 47.776 79.5 1280 x 800WXGA_60* 59.810 49.702 83.500 WXGA_75 74.934 62.795 106.500 WXGA_85 84.880 71.554 122.500 WXGA_120** (Reduce Blanking)119.909 101.563 146.25 1280 x 1024SXGA_60*** 60.020 63.981 108.000 SXGA_75 75.025 79.976 135.000 SXGA_85 85.024 91.146 157.500 1280 x 9601280 x 960_60*** 60.000 60.000 108 1280 x 960_85 85.002 85.938 148.500 1360 x 768 1360 x 768_60*** 60.015 47.712 85.500 1440 x 900 WXGA+_60*** 59.887 55.935 106.500 1400 x 1050 SXGA+_60*** 59.978 65.317 121.750 1600 x 1200 UXGA*** 60.000 75.000 162.000 1680 x 1050 1680x1050_60*** 59.954 65.290 146.250 640 x 480@67Hz MAC13 66.667 35.000 30.240 832 x 624@75Hz MAC16 74.546 49.722 57.280 1024 x 768@75Hz MAC19 75.020 60.241 80.000 1152 x 870@75Hz MAC21 75.06 68.68 100.00
Specifications 58 • The timings showing above may not be supported due to EDID file and VGA graphic card limitations. It is possible that some timings cannot be chosen. *Supported timing for 3D signal in Frame Sequential format. **Supported timing for 3D signal in Top Bottom, Frame Packing and Side by Side formats. ***Supported timing for 3D signal in Frame Sequential, Top Bottom, Frame Packing and Side by Side formats. ****Supported timing for 3D signal in Side by Side format. *****Supported timing for 3D signal in Top Bottom format. Supported timing for Component-YPbPr input • *Supported timing for 3D signal in Frame Sequential format. • Displaying a 1080i(1125i)@60Hz or 1080i(1125i)@50Hz signal may result in slight image vibration. TimingResolutionVe r t i c a l Frequency (Hz)Horizontal Frequency (kHz)Pixel Frequency (MHz) 480i* 720 x 480 59.94 15.73 27 480p* 720 x 480 59.94 31.47 27 576i 720 x 576 50 15.63 27 576p 720 x 576 50 31.25 27 720/50p** 1280 x 720 50 37.5 74.25 720/60p*** 1280 x 720 60 45.00 74.25 1080/50i**** 1920 x 1080 50 28.13 74.25 1080/60i**** 1920 x 1080 60 33.75 74.25 1080/24P** 1920 x 1080 24 27 74.25 1080/25P 1920 x 1080 25 28.13 74.25 1080/30P 1920 x 1080 30 33.75 74.25 1080/50P***** 1920 x 1080 50 56.25 148.5 1080/60P***** 1920 x 1080 60 67.5 148.5 TimingResolutionVe r t i c a l Frequency (Hz)Horizontal Frequency (kHz)Pixel Frequency (MHz) 480i* 720 x 480 59.94 15.73 13.5 480p* 720 x 480 59.94 31.47 27 576i 720 x 576 50 15.63 13.5 576p 720 x 576 50 31.25 27 720/50p 1280 x 720 50 37.5 74.25 720/60p* 1280 x 720 60 45.00 74.25 1080/50i 1920 x 1080 50 28.13 74.25 1080/60i 1920 x 1080 60 33.75 74.25 1080/24P 1920 x 1080 24 27 74.25 1080/25P 1920 x 1080 25 28.13 74.25 1080/30P 1920 x 1080 30 33.75 74.25 1080/50P 1920 x 1080 50 56.25 148.5 1080/60P 1920 x 1080 60 67.5 148.5
Specifications 59 Supported timing for Video and S-Video inputs *Supported timing for 3D signal in Frame Sequential format. Video modeHorizontal Frequency (kHz)Ve r t i c a l F r e q u e n c y (Hz)Color sub-carrier Frequency (MHz) NTSC* 15.73 60 3.58 PAL 15.63 50 4.43 SECAM 15.63 50 4.25 or 4.41 PAL-M 15.73 60 3.58 PAL-N 15.63 50 3.58 PAL-60 15.73 60 4.43 NTSC4.43 15.73 60 4.43
Warranty and Copyright information 60 Warranty and Copyright information Limited warranty BenQ warrants this product against any defects in material and workmanship, under normal usage and storage. Proof of purchase date will be required with any warranty claim. In the event this product is found to be defective within the warranty period, BenQs only obligation and your exclusive remedy shall be replacement of any defective parts (labor included). To obtain warranty service, immediately notify the dealer from which you purchased the product of any defects. Important: The above warranty shall be void if the customer fails to operate the product in accordance with BenQs written instructions, especially the ambient humidity must be in- between 10% and 90%, temperature in-between 0°C and 35°C, altitude lower than 4920 feet, and avoiding to operate the projector in a dusty environment. This warranty gives you specific legal rights, and you may have other rights which vary from country to country. For other information, please visit www.BenQ.com. Copyright Copyright 2013 by BenQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Corporation. Disclaimer BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Further, BenQ Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation to notify any person of such revision or changes. *DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments. Others are copyrights of their respective companies or organizations. Patents This BenQ projector is covered by the following patents: U.S. patents 6,837,608; 7,275,834; 7,181,318. TW patents 202690; 205470; I228635; I259932. China patents (中国发明专利) ZL01143168.7; ZL03119907.0; ZL200510051609.2