BenQ Mx661 Users Manual

Maintenance 91
Indicators
LightStatus & Description
POWERTEMPLAMP
System messages
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 
FlashingOff OffScaler shutdown fail (data abord)
Red Off RedScaler reset fail (video projector only)
Off Red OffLAN download fail
Off Green OffLAN download processing
Burn-in message
Green Off OffBurn-in ON
Green Green GreenBurn-in OFF...

Maintenance
92
Green
FlashingGreen OffThermal Sensor 2 short error
Green
FlashingGreen
FlashingOffThermal IC #2 I2C Connection error
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Troubleshooting 93
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
94
Specifications
All specifications are subject to change without notice. 
Lamp life results will vary depending on environmental conditions and usage.
OpticalResolution
1024 x 768 XGA
Display system
1-CHIP DMD
Lens F/Number
F = 2.51 to 2.69, 
f = 21.95 to 24.18 mm
Offset
130%
Zoom ratio
1.1X
Lamp
210 W lamp
ElectricalPower supply
AC100–240V, 2.6 A, 
50-60 Hz (Automatic)
Power consumption
285 W (Max); < 0.5 W (Standby)
MechanicalWe i g h t
2.3 Kg (5.1 lbs)
Output terminalsRGB output
D-Sub...

Specifications 95
Dimensions
326.5 mm (W) x 126.0 mm (H) x 230.1 mm (D)
Ceiling mount installation
326.5
230.1
126.0
77.1
74.1
Ceiling mount screws:
M4 x 8 (Max. L = 8 mm)Unit: mm
149.5
14.0
242.0 65.584.0
112.2 119.281.2
87.5
327.4 21.1 537.9
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Specifications
96
Timing chart
Supported timing for PC input
• *Supported timing for 3D signal with Frame Sequential, Top Bottom and Side by Side 
format.
**Supported timing for 3D signal with Frame Sequential format.
***Supported timing for 3D signal with Top Bottom and Side by Side format.
• 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.
ResolutionModeVe r t i c a l  
Frequency 
(Hz)Horizontal...

Specifications 97
Supported timing for HDMI (HDCP) input
• *Supported timing for 3D signal with Frame Sequential, Top Bottom and Side by Side 
format.
**Supported timing for 3D signal with Frame Sequential format.
***Supported timing for 3D signal with Top Bottom and Side by Side format.
ResolutionModeVe 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 85.008 43.269...

Specifications
98
• 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 with Frame Sequential format.
**Supported timing for 3D signal with Top Bottom and Frame Packing format.
***Supported timing for 3D signal with Side by Side format.
TimingResolutionVe r t i c a l  
Frequency 
(Hz)Horizontal 
Frequency 
(kHz)Pixel 
Frequency 
(MHz)Remark
480i* 720 x 480 59.94 15.73 27 HDMI...

Specifications 99
Supported timing for Component-YPbPr input
• *Supported timing for 3D signal with Frame Sequential format.
• Displaying a 1080i(1125i)@60Hz or 1080i(1125i)@50Hz signal may result in slight image 
vibration.
Supported timing for Video and S-Video input
*Supported timing for 3D signal with Frame Sequential format.
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...

Specifications
100
Supported 3D signal for HDMI (HDCP) input
Video timing
PC timing
ResolutionTimingHorizontal 
frequency 
(KHz)Ve r t i c a l  
frequency 
(Hz)3D Field 
Sequential3D frame 
packing3D top 
bottom3D 
side by 
side
720 (1440) x 
480480i 15.73 59.94
◎
720 x 480 480p 31.47 59.94
720 (1440) x 
576576i 15.63 50
720 x 576 576p 31.25 50
1280 x 720 720/50p 37.5 50
◎◎
1280 x 720 720/60p 45 60
◎◎
1920 x 1080 1080/
24P27 24
◎◎
1920 x 1080 1080/
25P28.13 25
1920 x 1080 1080/
30P33.75 30
1920 x 1080...