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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of BenQ PB8250, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of BenQ PB8250 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of BenQ PB8250. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of BenQ PB8250 should contain:
- informations concerning technical data of BenQ PB8250
- name of the manufacturer and a year of construction of the BenQ PB8250 item
- rules of operation, control and maintenance of the BenQ PB8250 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of BenQ PB8250 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of BenQ PB8250, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the BenQ service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of BenQ PB8250.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the BenQ PB8250 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
We l c o m e PB8140 / PB8240 / PB8250 Digital Pr ojector Installation Series Us e r ’s Ma n u a l[...]
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Page 2
Copy ri gh t Copyright 2005 by BenQ Corporation. All rights rese rved. N o part of this publication may be repro- duced, transmitted, transcr ibed, stor ed in a retrieval syst em or translated into a ny languag e or com- puter language, i n any f orm or by an y means, electronic, mechanical, magnetic, optical, chemical, manual or otherw ise, w ith [...]
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Page 3
Table of Contents iii T able of Cont ents Important Safety Instructions ............................... 1 Introduction ........................................................... 5 Projector Features ......................................................................... 5 Shipping Contents ........................................................[...]
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Page 4
Table of Contents iv Laser Pointer Operation .................................................... ......... 22 Mouse Function Operation ........................................................ 23 Zoom In + / Zoom Out - ............................................................ 23 Volume Adjustment .................................................[...]
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Page 5
Table of Contents v Supported timing for PC (inc luding DVI-I) input .................................... 47 Supported timing for YPbPr input .............................................................. 47 Supported timing for Video and S-Video inputs ...... ................................. 47 Dimensions .........................................[...]
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Page 6
Table of Contents vi[...]
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Page 7
Important Safety In stru ctio ns 1 Important Safet y Instructions Y our Ben Q projector is des igned a nd tested to meet th e latest standards for s afety of infor- mation technology equipment. Ho wever , to ensure safe use of this product, it is important that you follo w the instructions mentioned in this manual an d mar ked on the produc t. Caut[...]
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Page 8
Important S afety Instructio ns 2 Safety I nstructio ns 1. The lamp be comes e xtremely hot during operation. A llow the pr ojec- tor to coo l for app roxim atel y 45 minut es prior to r emoving the lamp assembly for replacement. 2. Do not oper ate lamps beyond the rated lamp life. Ex cessive operation of lamps beyond the rated life could cause the[...]
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Page 9
Important Safety In stru ctio ns 3 Safety Instructions (Continued) 7. Do not place this pr ojector in any of the following en v ironments. - Space that is poorly v entilated or confined. Allo w at least 50 cm clearance from walls and free flo w of air around the projector . - Locations where temperatures ma y becom e excessive ly hi gh, such as th [...]
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Page 10
Important S afety Instructio ns 4 Safety Instructio ns (Continued) 11. Do not step on the proj ector or plac e any objects upon it. Besides probable physical damage to the projector , doing so may result in ac cidents and possible inju r y . 12. Do not block the projection lens with any objects when the projector is under operation a s this could c[...]
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Page 11
Introducti on 5 I ntr oduction Pr ojec tor F eatures The projector integ rates high -performa nce optical engine projecti on and a user-friendly des ign t o del iv er high r eliabi lity and e ase o f us e. The projector offers t he following features: • Ful l- fun ct ion rem ote co nt rol w i th l ase r po in ter/ remo te m ous e f unc ti on • [...]
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Page 12
Introduction 6 Shipping Contents The project or is shipped with the cables re quir ed fo r connecti on to a PC and t o video equip- ment. Carefully unpack and v e rify that you ha ve all of the items shown below . If any of these items are missing, please contact y our place of purchase. Projector Soft Carr y Case U ser’ s Manual Batt eries 3-2 P[...]
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Page 13
Introducti on 7 Optional A ccessories Proje c tor Ex ter i or V ie w Front / Upp er View Back V iew Bottom V iew 1. Macintosh adapt er 2. 250W / 300W lamp module 3. Ceiling mount kit 4. Wireless Pr o 5. Pr esentation Pro 6. DVI-I cable External control panel (See page 9 for detailed information.) K ensington lock slot Front adjuster butt on Project[...]
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Page 14
Introduction 8 Connector P anel RGB s i g na l in p ut (PC/ YPbPr/ Y CbCr) USB connector RGB sig nal output S-V ideo jack A udio/ Vi deo connector PC A udio jack DVI- I con nector RS 232 co ntrol port For ex ternal contr ol system s and used by service personnel.[...]
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Page 15
Introducti on 9 Controls and F unctions External Control P anel 1 2 3 9 8 4 11 10 5 7 6 12 13 1. P ower (R efer to page 18 for more infor- mation.) T urns the projector on or off. 2. Source (R efer to page 21 for more information.) Sequentially selects the input signal RGB, DV I, YP b P r, S-V ideo or Vi de o . 3. 3 Left 4. Right 4 When the on-scre[...]
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Page 16
Introduction 10 Re mote Contr ol Descr iption Front View Notes on Remote Control Ope ration Make sure that there are no obstacles between the remote control and t he IR sensors on the projector that might obstruct the infra-red beam. 6 Down/ Menu ( 26 ) 3 Left/ Keystone - 4 Right/ Keystone + ( 20 ) Au to ( 21 ) L-Click/ R -click ( 23 ) Z oom in +/ [...]
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Page 17
Introducti on 11 Rem o te C on t ro l E ff e c t ive R a n ge Infra Red (IR) remote co ntrol sensors are located on the front and the back of the projector . The remot e contro l must be held at an angle within 30 degrees of the pr ojec tor’ s IR remote control sensors to function correctly . The distance between the remote c ontrol and the sen- [...]
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Page 18
Introduction 12 Installing or Replacing the Batteries Avoi d excessive heat and humidity . There may be danger of an explosion if the batteries are incorrectly replac ed. Replace only with the same or equivalent type rec ommended by the manufacturer . Dispose of the used batteries ac cording to the manufacturer’s inst ructions. Push an d op en t [...]
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Page 19
Setting Up Your Projector 13 Setting U p Y our P r ojector Choo sing a Loc ation Y our projector is designed to be installed in the four installatio n configurations shown here: Floor front, Ceiling fr ont, Floor rear , Ceiling re ar . Y our room layout or person al preference will dictate which installation c onfigur ation y ou use. For further in[...]
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Page 20
Setting Up Your Projector 14 Connecting to a Laptop or Desk top Co mputer A Mac adapter (an optional accessory) may be necessary if you are connecting to an older Macintosh computers. The USB cable is required i f you intend using mouse functions on the remote control . Connecting Equipment to the C omponent V ideo Input The project or is capable o[...]
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Page 21
Setting Up Your Projector 15 Connecting to V ideo or S-Vid eo Dev ices If the selected video im age is not displayed af ter the projector is turned on and the correct video source has been selected, check that the video source is turned on and operating cor- rectly . Also check that the signal cables have been connected correctly . Connecting to Di[...]
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Page 22
Setting Up Your Projector 16 A d justing the H eig ht The pr ojector is equipped with 2 quic k-release adjuster feet. 1. Lift the projector up and press the adjuster butt on to r elease the adjuster . The adju ster wil l drop into position and be locke d. 2. Screw the r ear adjuster feet t o fine-tune t he pr ojection angle. If the screen and the p[...]
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Page 23
Setting Up Your Projector 17 The recommended focus range is from 1. 5 ~ 8 meters (6 ~ 32 feet). There is 3% ~ 5% toleran ce among these numbers due to opt ical component variations. * 1 m = 3.28 feet, 1 foot = 0.305 m, 1 m = 100 cm, 1 foot = 12 inches Scre en si ze cha r t (4 :3 a spe ct r at io) Dist ance from screen Diagonal measurement Dist ance[...]
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Page 24
Operat ion 18 Operation Start U p 1. Switc h all of the conn ected equipmen t on. 2. Plug the po wer cor d into the projecto r and into a wall soc ket. 3. T urn on the wall sock et sw itch (wher e fitted). 4. T urn the main power switch o n. The Pow e r i n d i c a t o r lights orange. 5. Press and hold Pow e r on th e rem ote cont rol o r proj ec [...]
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Page 25
Operation 19 contin uously: “ Analog RGB Searc hing ”, “ DV I-A S earc hin g ”, “ DVI-D Se arch in g ”, “ Analog YPbPr S earching ”, “ S-Video Se arching ”, “ Composite Video Sear ching ”. 8. Y ou can also press Sour ce on the pr ojector o r remote control to select y our desir ed input signal. For mor e information, refer t[...]
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Page 26
Operat ion 20 Digital K eystone C or r ection K e yston ing refers to the situation wher e the project ed image is notic eably wider at either the top or bottom. It occurs when the projector is not p erpendicu lar to the screen. T o correct this, beside s adjusting the height of the pr ojector , you will need to manuall y correct it follo w- ing ON[...]
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Page 27
Operation 21 Sourc e Selection T o sequentially select input sources, press Sourc e on the pr ojector c ontrol panel or the rem ote co nt rol . It m ay ta ke you a fe w se c- onds when the projector is sear ching for input signals. The selected sour ce will be displayed at the bottom r ight of the screen for 3 seconds. Au t o A d j u s t m e n t I [...]
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Page 28
Operat ion 22 Blank In order to draw the audience’ s ful l atten- tion to the presen ter , you can use Blank to hide the s creen imag e. Pr ess Blank again to restore the ima ge. A word “ BLANK ” app ear at the bottom right corner of the screen when the image is hidd en. Zoom / Focusi ng Adjust the pr ojected image to y our desired size using[...]
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Page 29
Operation 23 Mo u s e F u n c t i o n O p e r a t i o n Connect the p roject or to y our PC or notebook with a USB cable prior to using these functions. The Mou se Pad can ta ke ov er the PC or notebook mouse func tion. When the displayed image is mag- nified, use the Mo u se Pad to mov e around the dis- play ar eas. The L-Click and R -Click act as[...]
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Page 30
Operat ion 24 Fr eeze The imag e is frozen when Free ze is pressed. An icon will appear in the lower right corner of the screen. T o release the function, press Fr eeze again, Ret ur n or Source (this will change the inpu t source and release the pa use function). Pres e t Mod e S el e c t io n Press P reset t o select a operation mode that suits y[...]
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Page 31
Operation 25 M enu Ope ration Me n u Sy s t e m Please note t hat the OSD men us vary accor ding to the signal type selected. Functions available when r eceiving different signal t ype s... Sub-Menu Analog RGB / DVI-A DVI-D YPbPr (480p/ 576p/ 720p/ 1080i) YCbCr (480i/ 576i) / S-Video / Video Display Ke y s t o n e Brightness Con tr ast Phase H Size[...]
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Page 32
Operat ion 26 Us i n g t h e m e n u s The pr ojector is equipped with on- screen di splay (OSD) menus f or making various adjust- ments and settings. There ar e 10 different m enu languag es. (Refer t o page 33 for more details.) The followi ng example descr ibes the adjust ment of the keystone. 1. Press Menu on the projector or remote control to [...]
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Page 33
Operation 27 1. Display M enu Analog R GB/ DVI-A/ YPbPr (480p , 576p, 720p , 1080i) signal input DVI -D sig n al inp ut FUNCTION DESCRIPTION Keystone Corrects an y keystoning o f the image. Refer t o page 20 for more infor- mation. Brightness Adjusts the brig htness of the image. T he higher the valu e, the brigh ter the image. And lower the settin[...]
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Page 34
Operat ion 28 Y CbCr (480i, 576i)/ S-V ideo/ Video signal input FUNCTION DESCRIPTION Keystone As ab ove. Brightness As a bove . Contrast As a bove . Color Incr eases or decr eases the c olor intensity of the imag e. Ti nt Adjusts the color tones of t he image. The hi gher the value, the more r ed- dish the i mage beco mes. The lo wer the value, the[...]
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Page 35
Operation 29 2. Image M enu Analo g RGB/ DVI- A sig nal i nput *About c olor temperatures: There are many different shades that are considered to be “w hite” for various pur poses. One of the common methods of representing w hite color is known as the “c olor temperature” . A white color with a low color temperature appear s to be reddish w[...]
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Page 36
Operat ion 30 YPbPr (480p , 576p, 720p, 1080i) signal input Y CbCr (480i, 576i)/ S-V ideo/ Video signal input FUNCTION DESCRIPTION Ratio U sers ha ve 2 options for the image ratio . 1. 4 : 3 2. 16 : 9 H Position As above. V Position As a bove. Color Incr eases or decr eases the color i ntensity of the image. Tin t Adjusts the color t ones of the im[...]
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Page 37
Operation 31 3. Source M enu FUNCTION DESCRIPTION Mirror The projector can be instal led on a ceiling or b ehind a screen, or w ith on e or mor e mirror s. Contact y our dealer for t he ceilin g mount brack et (optional ac cessor y) if y ou need t o install the pr ojector on your ceiling. • Floor front: Select this setti ng with the projector set[...]
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Page 38
Operat ion 32 Bass Adjusts the bass level. (-5 ~ 5) Mute Off On[...]
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Page 39
Operation 33 4. Control Menu FUNCTION DESCRIPTION Language Language s ets the lang uage for th e OSD c ontrol menus. Us e t h e 3 / 4 key to select the desired language from among English, French, German, Italian, Spanish, Russi an, T r aditional Chinese, Simplified Chinese, J apanese and K orean. OSD OSD P os. Selects a de sired OSD position. OSD [...]
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Page 40
Operat ion 34 Preset Mode Pr eset modes ar e pr ovided so y ou can optimiz e yo ur project or image set- up to suit y our p rogram type. PC/ DVI Signal input 1. Pr esentation M ode : Is designed for presenta tions. The br ight ness is emphasized in this m ode. 2. Viv i d Mo d e : Is perfect for playing games. The color saturation and brightness are[...]
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Page 41
Operation 35 5. PIP (Pict ure I n Pictur e) Men u Y our projector is capable of displaying images simultaneously from two input sources, which enhances your presentation in a more effective way . These func tions are available only when the input source is PC and the PI P source is V ideo or S-Video . FUNCTION DESCRIPT ION PIP Source Selects the so[...]
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Page 42
Maintenance 36 M aintenanc e Y our projecto r needs little maint enance. Things y o u hav e to do on a regular basis ar e keep the lens clean and clean the air filter to prevent o verheating . Never r em ove an y par ts of the projector except the lamp and air filter . Contact your dealer if other parts needs replacing. Cleaning the lens Clean the [...]
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Page 43
Maintenance 37 4. U se a small vacuum c leaner designed for c omputers and other office e quipment to clean the filters. Or use a soft brush (such as a clean ar tist’ s paintbrush) to gently sweep the dust awa y . If the dirt is difficult t o remo ve or the filt ers are brok en, co ntact your plac e of pur chase to r eplace them. 5. Replace the f[...]
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Page 44
Maintenance 38 Lamp Informatio n U se and Replac ement of the Lamp When the Lamp Indicator lights up red or a message appears suggesting it is time to replace the lamp , please install a new lamp o r consult y our dealer . An old lamp ma y cause a mal- function in the projector and in some instances the lamp may explode. For mor e detailed informat[...]
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Page 45
Maintenance 39 T o reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp com pa rtment when the lamp is removed. This lamp contains mercury . Consu lt y our lo cal hazardous waste regulations and dispose of this lamp in the prop er man ner . Step 1. T urn the power off and disconn[...]
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Page 46
Maintenance 40 Step 7. Reset the l amp counter i. Press and hold Exit on th e projector for 3 seconds to displa y the total used lamp time. ii. Press Menu on the projector or on the remote control to access the lam p hour time r . An adjus tment messag e will appear . iii. Pr ess W or X to reset lamp hours and press EXIT to leave. Te m p Wa r n i n[...]
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Page 47
Maintenance 41 LED St atus & Descr iption Power Te m p Lamp Power events The projector has just been connected to a power outlet. -- Stand-by mode. -- (1) The projector needs 90 seconds to cool do w n as it was abnormally shut do wn w ithout the normal cool ing down process. Or (2) The projector needs to cool for 90 seconds after t he power is [...]
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Page 48
Maintenance 42 The projector h as shutdown automatical ly . If you tr y to re- start the project or , it will shutdown again. Please contact your dealer for assistance. The projector h as shutdown automatical ly . If you tr y to re- start the project or , it will shutdown again. Please contact your dealer for assistance. - The projector h as shutdo[...]
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Page 49
Maintenance 43 Ser v ice I nformation A cc essories (included in the standard package) Optional Ac cessories (not included in the standard package) Or de rin g P arts or G etti ng I nfo rma tio n For p roduct inf ormation, product assistance, se rv ice information, or to or der accessories, please v isit the BenQ Corpora tion website at http:/ /www[...]
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Troubleshooting 44 T r oubleshooting Common P roblems & Solutions THE PROJECT OR DOES NOT TURN ON. NO PICTURE BL URRED IMAGE REMOTE CONTR OL D OES NOT W ORK Cause Remedy There is no power from the power cable. Plug the power cord into the AC inle t on the projector , and plug the power cord into the power outlet. If the power outlet has a switc[...]
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Page 51
Specifications 45 Specificat ions Pr ojector Specifications T echnical Specifications All specifications are subject to change without notice. General Pr oduct name Digital Projecto r Model name PB8240 1024 x 768 X GA PB8140 800 x 600 SV GA PB8250 1024 x 768 X GA Optical Displa y system 1-CHIP DMD Lens F/N umb er F/2.4 Lamp PB8140 / PB8240 250W lam[...]
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Page 52
Specifications 46 Control RS-232C 9-pin x1 Environment al Requirements Oper ating temper ature 0 °C ~ 40°C at sea l evel Opeating relati ve humidity 10% ~ 90% (without condensation) Opeating altitude 6000 feet at 30°C 6000 ~ 10000 feet at 23°C[...]
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Page 53
Specifications 47 Tim i n g C h ar t Supported timing for PC (including D VI-I) input Supported timing for YP b P r input Supported timing for V ideo and S-Video inputs Resolution Horizont al Frequency (kHz) Ve r t i c a l Frequency (Hz) Pixel Frequency (MHz) Mode 720 x 400 37.927 85.039 35.500 720 x 400_85 640 x 480 31.469 59.940 25.175 V GA_60 37[...]
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Dimensions 48 Dimensions Un i t: m m[...]
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Page 55
Warranty 49 Wa r r a n t y Limited W ar rant y BenQ warrants this pr oduct against any defects in material and wo rkmanship, un der normal usage and storage. Proof of p urcha se da te wi ll be requ ired w it h any war r ant y cla im. In t he e vent thi s prod - uct is found to be defectiv e within the warr anty period, BenQ’ s only obligation and[...]
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Page 56
Regulation Stat ement s 50 R egulation Statements FCC Stateme nt CLASS B : This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in acc ordance with the instructions, may cause harmful int er- ferenc e to radio communications. H ow ever , there is no guarantee that inte rference will not occur in a par[...]