BenQ Projector MX768 User Manual

Troubleshooting 91
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...

Specifications
92
Specifications
All specifications are subject to change without notice.
Lamp life results will vary depending on environmental conditions and usage.
Optical
Resolution
(MX768)
1024 x 768 XGA
(MW769)
1280 x 800 WXGA
Display system
1-CHIP DMD
Lens F/Number
(MX768)
F= 2.58~3.4  
f=  15.94mm~25.5mm
(MW769)
F= 2.42~2.98  
f=  20.77mm~31.13mm
Offset
(MX768): 130%
(MW769): 125%
Zoom ratio
(MX768)1.6X
(MW769)1.5X
Lamp
310 W lamp
Electrical
Power supply
AC100–240V, 4.20 A,
50-60 Hz (Automatic)...

Specifications 93
Dimensions
329 mm (W) x 137.2 mm (H) x 248.7 mm (D)
Ceiling mount installation
329
248.7
137.2
62.577.4
75.0
221.0
100.0
146.0
329.0 163.762.5
127.7
329.0 163.762.5
577.7625.95
537.9
25
132.16115.1 72.87
Ceiling mount screw: M4
(Max L = 25 mm; Min L = 20 mm)
Unit: mm 

Specifications
94
Timing chart
Supported timing for D-SUB input
PC timing
ResolutionModeVe r t i c a l  
Frequency 
(Hz)Horizontal 
Frequency 
(kHz)Clock
 (MHz)
720 x 400 720 x 400_70 70.087 31.469 28.3221
640 x 480VGA_60*
159.940 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
800 x 600SVGA_60*
160.317 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*
2
(Reduce Blanking)119.854 77.425 83.000...

Specifications 95
*1Supported timing for 3D signal with Field Sequential, over-under and side-by-side format.
*2Supported timing for 3D signal with Field Sequential format.
*3Supported timing for 3D signal with over-under and side-by-side format.
There 3D timing showing depend the EDID file and VGA display card. It is possible that user 
cannot choose the above 3D timings on VGA display card.
Supported timing for HDMI input
PC timing
ResolutionModeVe r t i c a l  
Frequency 
(Hz)Horizontal 
Frequency...

Specifications
96
*1Supported timing for 3D signal with Field Sequential, over-under and side-by-side format.
*2 Supported timing for 3D signal with Field Sequential format.
*3 Supported timing for 3D signal with over-under and side-by-side format.
There timing showing depend the EDID file and VGA graphic card limitation. It is possible that 
user cannot choose the above timings on VGA display card.
Supported timing for HDMI (HDCP) input
Video timing
*1Supported timing for 3D signal with Field Sequential...

Specifications 97
Supported timing for Component Video Input
*Supported timing for 3D signal with Field Sequential format.
Supported timing for Video and S-Video inputs
*Supported timing for 3D signal with Field Sequential format.
TimingResolutionHorizontal 
Frequency 
(kHz)Ve r t i c a l  
Frequency 
(Hz)Dot Clock 
Frequency 
(MHz)
480i* 720 x 480 15.73 59.94 13.5
480p* 720 x 480 31.47 59.94 27
576i 720 x 576 15.63 50 13.5
576p 720 x 576 31.25 50 27
720/50p 1280 x 720 37.5 50 74.25
720/60p* 1280 x 720...

Specifications
98
Supported 3D signal for HDMI (HDCP) input
Video timing
PC timing
TimingResolutionHorizontal 
frequency 
(KHz)Ve r t i c a l  
frequency 
(Hz)3D Field 
Sequential3D 
frame 
packing3D 
over-
under3D 
side by 
side
480i 720 (1440) x 480 15.73 59.94
◎
480p 720 x 480 31.47 59.94
◎
576i 720 (1440) x 576 15.63 50
576p 720 x 576 31.25 50
720/50p 1280 x 720 37.5 50
◎◎◎
720/60p 1280 x 720 45 60
◎
◎◎◎
1080/24P 1920 x 1080 27 24
◎◎◎
1080/25P 1920 x 1080 28.13 25
1080/30P 1920 x 1080 33.75 30...

Specifications 99
Supported 3D signal for D-SUB input
PC timing
1280 x 800WXGA_60 59.81 49.702
◎◎◎
WXGA_75 74.934 62.795
WXGA_85 84.88 71.554
WXGA_120
(Reduce Blanking)119.909 101.563
◎
1280 x 1024SXGA_60 60.02 63.981
◎◎
SXGA_75 75.025 79.976
SXGA_85 85.024 91.146
1280 x 9601280 x 960_60 60 60
◎◎
1280 x 960_85 85.002 85.938
1360 x 768 1360 x 768_60 60.015 47.712
◎◎
1440 x 900WXGA+_60
(Reduce Blanking)60 55.469
◎◎
WXGA+_60 59.887 55.935
◎◎
1400 x 1050 SXGA+_60 59.978 65.317
◎◎
1600 x 1200 UXGA 60 75
◎◎...

Specifications
100
Supported 3D signal for Video and S-Video input
1280 x 7201280 x 720_60 60 45
◎◎◎
1280 x 720_120 120 90
◎
1280 x 7681280 x 768_60
(Reduce Blanking)60 47.396
◎◎◎
1280 x 768_60 59.87 47.776
◎◎◎
1280 x 800WXGA_60 59.81 49.702
◎◎◎
WXGA_75 74.934 62.795
WXGA_85 84.88 71.554
WXGA_120
(Reduce Blanking)119.909 101.563
◎
1280 x 1024SXGA_60 60.02 63.981
◎◎
SXGA_75 75.025 79.976
SXGA_85 85.024 91.146
1280 x 9601280 x 960_60 60 60
◎◎
1280 x 960_85 85.002 85.938
1360 x 768 1360 x 768_60 60.015...