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BenQ PB8250 - XGA DLP Projector, Руководство по обслуживанию

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Temp Warning Light 

When the Temperature warning light is on, it is warning you of the following possible problems: 

1.

 

The internal temperature is too high. 

2.

 

Air Filters are clogged. 

3.

 

The fans are not working. 

Turn the projector off , check that the air filters are clean. If the problem persists, contact qualified 
service personnel for further help. 

For more detailed information, please refer to the following section. 

Indicators 

Illustration - table legend. 

 

 

57

Содержание PB8250 - XGA DLP Projector

Страница 1: ...and operation 17 Shipping Contents 17 Projector Description 18 Remote Control Description 21 Installation 24 Operation 30 Packing Description 47 Appearance Description 52 Lamp Replacement 55 Shutdown...

Страница 2: ...Chapter 1 Engineering Specifications 1...

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Страница 7: ...ther than the projector 3 All measurements shall be made on flat screens that do not provide any advantage to the performance of the unit 4 All measurements shall be made at standard color temperature...

Страница 8: ...of the white rectangles Average lux value of the black rectangles Contrast Ratio shall be determined from illuminance values obtained from a black and white chessboard pattern consisting of 16 equal...

Страница 9: ...V Distortion are recommended for Rear Projection Display A9 THROW RATIO Throw ratio projection distance the width of the projected image A10 ZOOM RATIO Zoom ratio maximum minimum image diagonal size a...

Страница 10: ...ove projection lens optical axis Total image height x 100 Note Optical engine should be kept horizontal attitude A17 BLUE EDGE INSPECTION CRITERIA The blue edge must invisible with blue pattern 171 R...

Страница 11: ...asure Lateral Color for whole screen with Pattern 5 and record the maximum number Example if 0 6 pixel lateral color A20 LAMP LIFETIME TEST PROCEDURE 50 lamp brightness maintenance under 3 5hr ON 0 5h...

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Страница 16: ...10 31 J9401 011 NAME PLATE AL PB8250 11 42 J9406 001 REAR C PC Y5003A PB8240 12 44 J7601 003 CTN AB PB7100 BENQ VI 13 47 J8104 001 BAG CARRY PB8250 8240 8140 14 50 72920 011 C A MIN DIN 4P S VIDEO W S...

Страница 17: ...ASSY SUB U C PB8240 32 60 J9420 001 ASSY SUB L C PB8240 33 60 J9420 002 ASSY SUB LOWER CASE PB8240 34 65 J7603 111 CW DIA46 DEG110 PB2240 PRODIS 35 65 J9301 001 PL ZOOM PB8240 COSINA 36 71 07XGA B01 I...

Страница 18: ...Contents The projector is shipped with the cables required for connection to a PC and to video equipment Carefully unpack and verify that you have all of the items shown below If any of these items a...

Страница 19: ...Optional Accessories 1 Macintosh adapter 2 250W 300W lamp module 3 Ceiling mount kit 4 Wireless Pro 5 Presentation Pro 6 DVI I cable Projector Description 18...

Страница 20: ...19...

Страница 21: ...Controls and Functions 20...

Страница 22: ...Remote Control Description 21...

Страница 23: ...cated on the front and the back of the projector The remote control must be held at an angle within 30 degrees of the projector s IR remote control sensors to function correctly The distance between t...

Страница 24: ...Installing or Replacing the Batteries 23...

Страница 25: ...e If you place the projector above or below the screen you have to tile it down or up to center the image on the screen in these situations image distortion will occur Use the Keystone function to cor...

Страница 26: ...gh Definition TV display modes Some of these sources are Most of these sources will provide an analog component video output a standard VGA output or a YPbPr default format The projector is capable of...

Страница 27: ...to Video or S Video Devices Connecting to Display Devices If you want to monitor your presentation close up on a monitor as well as on the screen you can connect the RGB signal output port on the pro...

Страница 28: ...Height The projector is equipped with 2 quick release adjuster feet Screen Size Place the projector at the required distance from the screen according to the required picture size see the table on the...

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Страница 31: ...projector and into a wall socket 3 Turn on the wall socket switch where fitted 4 Turn the main power switch on The Power indicator lights orange 5 Press and hold Power on the remote control or projec...

Страница 32: ...ut source detected one of six messages will be displayed on the screen continuously Analog RGB Searching DVI A Searching DVI D Searching Analog YPbPr Searching S Video Searching and Composite Video Se...

Страница 33: ...Source Selection Auto Adjustment 32...

Страница 34: ...Blank Zoom Focusing Adjust the projected image to your desired size using the lens zoom ring Then focus the image by rotating the focus ring 33...

Страница 35: ...tion When the displayed image is magnified use the Mouse Pad to move around the display areas The L Click and R Click act as the Left L and Right R buttons of a computer mouse The Drag toggles between...

Страница 36: ...In Picture Operation By pressing the PIP Source PIP Pos and PIP Size hot keys you can enable the PIP Picture In Picture function and choose the position and size of the PIP image Freeze Preset Mode S...

Страница 37: ...Menu Operation Menu System Please note that the OSD menus vary according to the signal type selected 36...

Страница 38: ...enus The projector is equipped with on screen display OSD menus for making various adjustments and settings There are 10 different menu languages The following example describes the adjustment of the...

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Страница 48: ...Packing Description 47...

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Страница 53: ...Appearance Description 52...

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Страница 56: ...and in some instances the lamp may explode Lamp Replacement To reduce the risk of electrical shock always turn the projector off and disconnect the power cord before changing the lamp To reduce the r...

Страница 57: ...and or compromising image quality by touching the lens do not touch the empty lamp compartment when the lamp is removed This lamp contains mercury Consult your local hazardous waste regulations and di...

Страница 58: ...al temperature is too high 2 Air Filters are clogged 3 The fans are not working Turn the projector off check that the air filters are clean If the problem persists contact qualified service personnel...

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Страница 61: ...Shutdown 60...

Страница 62: ...It control whole system operation and with crucial role of this system Include fan speed inter lock SW 1 3 block as Lamp Fan1 POWER SUPPLY Module Lamp Power 12V 5V 2 5V AC IN 12V Lamp Fan Power Fan E...

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Страница 64: ...MD driver board that transfer PW166 scaler output RGB888 signal to DMD chip acceptable signal for driving DMD mirror operation The relate diagram as below 3 Whole system block diagram is show as below...

Страница 65: ...le EMI Filter Ballast DC DC A D Converter Video Decoder Video Input S video Input D Sub Input DVI Input Main Board Fan DMD Driver Overview The Main Board of PB8250 is mainly composed of an ADC convert...

Страница 66: ...stores the system information such as brightness contrast which ensure the system operates under the most user friendly circumstance The Flash memory stored the Software Program which control the sys...

Страница 67: ...Horizontal Synchronization signal to Image Processor GVS Providing the Vertical Synchronization signal to Image Processor GRE GGE GBE Digital data stream to Image Processor which is higher than SXGA 7...

Страница 68: ...nformation for user friendly Flash Memory System software was stored in this chip the memory size is 8M bits DDP1000 The DDP1000 transfer signal from PW166 to DMD for driving DMD mirror operation Dire...

Страница 69: ...to DMD BD The CWINDEX shall indicate the beginning of the red light on the DMD device The phase of the display data on the DMD based on the CWINDEX signal It can be configured to delay the CWINDEX for...

Страница 70: ...dure 1 Watch DMD Bias Voltage Bin Label Example 8060 7bbc DDDD XXXXXXX M 2 Switch the DIP switch H8 on Chip board according to the red character on the DMD chip 0 0 ON 00 E 01 D 10 C 11 B 2 Color Whee...

Страница 71: ...uare 9 Do not adjust too much let the signal get ahead if it happens go back to step 7 and do it again 10 Change the input to pure blue and repeat the above procedures again Ahead Exact Lag 3 PC Color...

Страница 72: ...ng 480i 60Hz Pattern 80 Gray pattern 3 Adjust R G B 9300K Gain to match spec b Get spec for YpbPr current source is S video 1 Change Timing and Pattern of pattern generator Timing 480i 60Hz Pattern 25...

Страница 73: ...ll increase to meet the spec Decrease Pb offset until the x value x2 1 2Dx Now the reading of the Lux meter x3 y3 and x3 will x0 y3 will y0 Case y y0 The value note x2 y2 Dx x2 x0 Case x1 x0 y1 y0 Inc...

Страница 74: ...Chapter 6 Trouble Shooting Common Problems Solutions 73...

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Страница 84: ...83 Chapter 7 Schematics drawing...

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