BenQ Fp91gx User Manual

							31 Troubleshooting  
The image is distorted, flashes or flickers:
Read the How to adjust the screen resolution section and then select the correct resolution, 
refresh rate and make adjustments based on these instructions.
The image is displaced in one direction:
Read the How to adjust the screen resolution section and then select the correct resolution, 
refresh rate and make adjustments based on these instructions..
Need More Help?
If your problems remain after checking this manual, please contact your place of purchase or 
e-mail us at: [email protected]
 
						

							  32   Supported operating modes
Supported operating modes
•Modes not listed in the table may not be supported. For an optimal picture, we recommended you 
choose a mode listed in the table above.
•There are 22 available modes that are compatible with Windows. 
•Image disruption may occur as a result of signal frequency differences from VGA cards which do 
not correspond with the usual standard. This is not, however, an error. You may improve this 
situation by altering an automatic setting or by manually changing the phase setting and the pixel 
frequency from the “Geometry” menu.
•If you switch off the monitor, interference lines can occur on your screen. But do not be concerned 
about this, as it is normal. 
•To extend the service life of the product, we recommend that you use your computers power 
management function. 
11
110
Incoming display mode (Input timing)
ResolutionHorizontal 
Frequency (KHz)Ve r t i c a l  
Frequency (Hz)Pixel 
Frequency (MHz)Comment
640x350 31.47(P) 70.08(N) 25.17 DOS
720x400 31.47(N) 70.08(P) 28.32 DOS
640x480 31.47(N) 60.00(N) 25.18 DOS
640x480 35.00(N) 67.00(N) 30.24 Macintosh
640x480 37.86(N) 72.80(N) 31.50 VESA
640x480 37.50(N) 75.00(N) 31.50 VESA
800x600 35.16(P) 56.25(P) 36.00 VESA
800x600 37.88(P) 60.32(P) 40.00 VESA
800x600 48.08(P) 72.19(P) 50.00 VESA
800x600 46.87(P) 75.00(P) 49.50 VESA
832x624 49.72(N) 74.55(N) 57.29 Macintosh
1024x768 48.36(N) 60.00(N) 65.00 VESA
1024x768 56.48(N) 70.10(N) 75.00 VESA
1024x768 60.02(P) 75.00(P) 78.75 VESA
1152x864 67.50(P) 75.00(P) 108.00 VESA
1152x870 68.68(N) 75.06(N) 100.00 Macintosh
1152x900 61.80(N) 66.00(N) 94.50 SUN 66
1152x900 71.81(N) 76.14(N) 108.00 SUN
1280x1024 64.00(P) 60.00(P) 108.00 VESA
1280x1024 75.83(N) 71.53(N) 128.00 IBMI
1280x1024 80.00(P) 75.00(P) 135.00 VESA
1280x1024 81.18(N) 76.16(N) 135.09 SPARC2
 
						

							
33 Specifications   
Specifications
BenQ FP91GP
11
111
ModelFP91GP
Display type 
Viewable diagonal 
Native (maximum) resolution
Colors
Contrast / Brightness
Response time *
Viewing angle (left/right, up/down)  19.0 , active, TFT
480 mm
1,280X1,024
16.7 million
1000:1 / 250 cd/m
2
20 ms (Typ.)
  8 ms (GTG)
170, 170 (CR=10)
178, 178 (CR=5)
Line frequency 
Image frequency 31 - 81 kHz Multi- 
frequency monitor
56 - 76 Hz modes within these parameters
Image checks 
Controls 
Functions Digital, OSD Technology,
 iKey  (automatic image 
setting)  
5 buttons and  iKey.
Contrast, brightness, ve rt. & hor. image position, 
phase, pixel clock, color  balance, color palette, 
multiple-language OSD, OSD position, status 
indicator
Power Management
Max. power consumption 
Power saving mode VESA DPMS, EPA
40 Watt
<
 1 Watt, 120 V
<
 2 Watt, 240 V
Input signal  PC
Synchronisation RGB analog 0.7 Vpp/75 Ohm positive 
Digital: DVI-D (optional)
TTL separate signal connection 15-pin mini D-sub 
cable
 
Temperature (operating) 
Air humidity (operating) 0 °C - 40 °C
10% - 90%
Certifications TCO 03/99, TÜ V/Ergonomics, TÜV/ GS, FCC 
Class B, ISO 13406-2, VC CI,  CB Report, CE, 
C-Tick, BSMI, Fimko,  GOST, CSA, CCC
 
						

							
  34
   Specifications
*   Response Time: The time it takes to switch a pixel off and then on and then off again (or from black 
to white and back to black).  A low response time is desirable for the display of moving images 
without ghosting. The Response Time quoted for ma ny LCD monitors is specific to transitions 
from black to white and back again, it does not specify the time required to switch between the 
many gray levels or colors that make up an image. 
Gray to Gray or GTG Response Time:  “Real world” video content contains a combination of 
grayscale images. It generally takes longer for a pixel to transition to an intermediate level of 
intensity (i.e. a gray or color level)  than it does for it to turn completely black or completely white.  
For example the Gray to Gray response time of an LCD panel may generally be 30 to 40 ms while 
the Response Time is 12 ms .  BenQs AMA technology greatly reduces the GTG response time 
so moving parts of the image are clearer, no matter what the image content is. With Advanced 
Motion Acceleration (AMA), the average GTG response time can be as low as 8 ms.  
 
For a more detailed explanation, visit BenQs AMA web page at 
http://www.benq.com/InfoPage/index.cfm?id=1 
Operating voltage 
Dimensions (H x W x D) 
Weight Automatic switched mode power supply, 
90-264 V, 47-63 Hz
410.1 x 422.2 x 168 mm
5.1 kg
 
						

							
35 Specifications   
BenQ FP91GX
ModelFP91GX
Display type 
Viewable diagonal 
Native (maximum) resolution
Colors
Contrast / Brightness
Response time *
 
Viewing angle (left/right, up/down)  19.0 , active, TFT
480 mm
1,280X1,024
16.2 million
550:1 / 270 cd/m
2
8 ms (Typ.)
4 ms (GTG)
140, 135 (CR=10)
160, 160 (CR=5)
Line frequency 
Image frequency 31 - 81 kHz Multi- 
frequency monitor
56 - 76 Hz modes within these parameters
Image checks 
Controls 
Functions Digital, OSD Technology,
 iKey  (automatic image 
setting)  
5 buttons and  iKey.
Contrast, brightness, ve rt. & hor. image position, 
phase, pixel clock, color  balance, color palette, 
multiple-language OSD, OSD position, status 
indicator
Power Management
Max. power consumption 
Power saving mode VESA DPMS, EPA
40 Watt
<
 1 Watt, 120 V
<
 2 Watt, 240 V
Input signal  PC
Synchronisation RGB analog 0.7 Vpp/75 Ohm positive 
Digital: DVI-D (optional)
TTL separate signal connection 15-pin mini D-sub 
cable
 
Temperature (operating) 
Air humidity (operating) 0 °C - 40 °C
10% - 90%
Certifications TCO 03/99, TÜ V/Ergonomics, TÜV/ GS, FCC 
Class B, ISO 13406-2, VC CI,  CB Report, CE, 
C-Tick, BSMI, Fimko,  GOST, CSA, CCC
 
						

							
  36
   Specifications
*   Response Time: The time it takes to switch a pixel off and then on and then off again (or from black 
to white and back to black).  A low response time is desirable for the display of moving images 
without ghosting. The Response Time quoted for ma ny LCD monitors is specific to transitions 
from black to white and back again, it does not specify the time required to switch between the 
many gray levels or colors that make up an image. 
Gray to Gray or GTG Response Time:  “Real world” video content contains a combination of 
grayscale images. It generally takes longer for a pixel to transition to an intermediate level of 
intensity (i.e. a gray or color level)  than it does for it to turn completely black or completely white.  
For example the Gray to Gray response time of an LCD panel may generally be 30 to 40 ms while 
the Response Time is 12 ms .  BenQs AMA technology greatly reduces the GTG response time 
so moving parts of the image are clearer, no matter what the image content is. With Advanced 
Motion Acceleration (AMA), the average GTG response time can be as low as 4 ms.  
 
For a more detailed explanation, visit BenQs AMA web page at 
http://www.benq.com/InfoPage/index.cfm?id=1 
Operating voltage 
Dimensions (H x W x D) 
Weight Automatic switched mode power supply, 
90-264 V, 47-63 Hz
410.1 x 422.2 x 168 mm
5.1 kg