BenQ Mx815st/mx815st+/mx816st/mw817st Digital Projector User Manual

Maintenance 51
Indicators
LightStatus & Description
Pow e r  eve n t s
Off Off OrangeStand-by mode.
Off OffGreen
FlashingPowering up.
Off Off GreenNormal operation.
Off OffOrange
Flashing
•  The projector needs 90 seconds to cool down as it was 
abnormally shut down without the normal cooling down 
process.
•  The projector needs to cool for 90 seconds after the 
power is turned off.
•  The projector has shut down automatically. If you try to 
re-start the projector, it will shut down again. Please...

Troubleshooting 52
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....

Specifications 53
Specifications
Projector specifications
All specifications are subject to change without notice.
Optical
Resolution
(MX815ST/MX815ST+/MX816ST)
1024 x 768 XGA
(MW817ST)
1280 x 800 WXGA
Display system
1-CHIP DMD
Lens F/Number
F = 2.6
Lamp
210 W lamp
Electrical
Power supply
AC100–240V, 3.2 A, 50-60 Hz 
(Automatic)
Power consumption
295 W (Max); < 1 W (Standby)
Mechanical
Weight
2.8 Kg (6.17 lbs)
Output terminals
RGB output
D-Sub 15-pin (female) x 1
Speaker
(Stereo) 10 watt x 1
Audio signal...

Specifications 54
Dimensions
287.3 mm (W) x 114.4 mm (H) x 232.6 mm (D)
Ceiling mount installation
287.3
232.6
114.4
6262
445.95
397.90
364.40
83.38
141.88
232.6 123.0 78
287.3
207.6
77
76.5
34.5
199.6
Ceiling Mount screw: M4 
x 8 (Max L = 8 mm)
Unit: mm 

Specifications 55
Wall mount installation
Minimum installation requirements
Computer 
Resolution: 
XGA 
Image 
Resolution: 
XGA
Diagram 
ReferenceSMART 
Board 
660Smart 
Board 
680Promethean 
ActivBoard 
164Promethean 
ActivBoard 
178RM 
ClassBoard2 
77.5Hitachi 
StarBoard 
FX-63StarBoard 
FX-77
Image 
Diagonal 
(inches)D6477 64 78 78 63 77
Image 
Height 
(mm)H 975 1173 975 1189 1181 960 1173
Image 
Width 
(mm)W 1300 1565 1300 1585 1575 1280 1565
Distance 
from floor 
to bottom 
of image 
(mm)
f 900 900...

Specifications 56
Computer Resolution: 
WXGA 
Image Resolution: WXGADiagram 
ReferenceSMART 
Board 
685Promethean 
ActivBoard 
387Hitachi 
FX-TRIO-
88WHitachi 
FX-DUO-
88W
Image Diagonal (inches)D87 87 88 88
Image Height (mm)H 1171 1171 1181 1181
Image Width (mm)W 1874 1874 1887 1887
Distance from floor to 
bottom of image (mm)f 900 900 900 900
Distance from screen surface 
to projector lens (mm)a 916 916 926 926
Distance from top case to 
the top of image (mm)b 6.8 6.8 7.5 7.5
Distance from top of wall...

Specifications 57
Minimum Ceiling Height (mm) = f + H + b + 60 + 274+ c
•  The dimensions are based on the BenQ wall mount (P/N: 5J.J4R10.001).
•  All measurements are approximate and may vary from the actual sizes. BenQ recommends that if you 
intend to permanently install the projector, you should physically test the projection size and distance 
using the actual projector in situ before you permanently install it, so as to make allowance for this 
projectors optical characteristics. This will help you...

Specifications
58
Timing chart
Supported timing for PC input
•  *Supported timing for non-3D and 3D signal with  Frame Sequential and Top-Bottom  format. 
** Supported timing for non-3D  and 3D signal with Frame Sequential  format.
*** Supported timing for non-3D and 3D signal with  Top-Bottom format.
ResolutionMode
Ve r t i c a l  
Frequency  (Hz)Horizontal 
Frequency  (kHz)Pixel 
Frequency (MHz)
640 x 480 VGA_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...

Specifications 59
•  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 non-3D and 3D signal with  Frame Sequential and Top-Bottom  format. 
** Supported timing for non-3D  and 3D signal with Frame Sequential  format.
*** Supported timing for non-3D and 3D signal with  Top-Bottom format.
ResolutionModeVe r t i c a l  
Frequency 
(Hz)Horizontal...

Specifications 60
•  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.
Displaying a 1080i(1125i)@60Hz or 1080i(1125i)@50Hz signal may result in slight image vibration.
**Supported timing for non-3D and 3D signal with Frame Sequential format.
Supported timing for Component-YPbPr input
Displaying a 1080i(1125i)@60Hz or 1080i(1125i)@50Hz signal may result in slight image vibration.
**Supported timing for...