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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Acer AL1721, 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 Acer AL1721 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 Acer AL1721. 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 Acer AL1721 should contain:
- informations concerning technical data of Acer AL1721
- name of the manufacturer and a year of construction of the Acer AL1721 item
- rules of operation, control and maintenance of the Acer AL1721 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 Acer AL1721 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 Acer AL1721, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Acer 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 Acer AL1721.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Acer AL1721 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
41L1700-786-7A 英文 . TABLE OF CONTENTS FOR YOUR SAFETY -------------------------------------------------- 1 SAFETY PRECAUTIONS -------------------------------------- 2 SPECIAL NOTES ON LCD MONITORS ------------------- 3 BEFORE YOU OPERATE THE MONITO R --------------------- 3 FEATURES -------------------------------------------------------- 3 PAC[...]
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Page 2
41L1700-786-7A 英文 1 Before operating the monitor, pleas e read this manual thoroughly. This manual should be retained for future reference. FCC Class B Radio Frequ ency Interference Statement WA RNING: (FOR FCC CERTIFIED MODELS) NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Pa[...]
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Page 3
41L1700-786-7A 英文 2 PRECA UTIONS z Do not use the monitor near water, e.g. near a bathtub, w ashbow l, kitchen sink, laundry tub, sw imming pool or in a wet basement. z Do not place the monitor on an unstable cart, stand, or table. If the monitor falls, it can injure a person and c ause serious damage to the appliance. Use only a cart or stand [...]
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Page 4
41L1700-786-7A 英文 3 SPECIA L NOTES ON LCD MONITORS The following symptoms are normal w ith LCD monitor and do not indicate a problem. NOTES • Due to the nature of the fluoresc ent light, the screen may flicker during initial use. Turn off the Power Sw it ch and then turn it on again to make sure the flicker disappears. • You may find slight[...]
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Page 5
41L1700-786-7A 英文 4 INSTA LLA TION INSTRUCTIONS POWERCORD Pow er Source: 1. Make sure that the power cord is the correct type required in y our area. 2. This LCD monitor has an External universal pow er supply that allow s operation in either 100/120V AC or 220/240V AC voltage area (No user adjustment is required.) 3. Connect the AC-power cord [...]
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Page 6
41L1700-786-7A 英文 5 CONTROLS A ND CONNECTORS CA BLE CONNECTIONS Turn off your computer befor e performing the procedure below . 1. Connect the power adapter dc cabl e to the DC-In port on the back of the monitor. 2. Connect one end of the 15-pin D-Sub c able to the back of the monitor and connect the other end to t he computer’s D-Sub port. 3[...]
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Page 7
41L1700-786-7A 英文 6 • For optimal view ing it is recommended to look at the full face of the monitor, then adjust the monitor’ s angle to your ow n preference. • Hold the stand so y ou do not t opple the monitor w hen you change the monitor’s angle. • You are able to adjust the monitor’s angle from -5 ° to 15 ° . Figure 2 NOTES ?[...]
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Page 8
41L1700-786-7A 英文 7 OPERA TING INSTRUCTIONS GENERAL INSTRUCTIONS Press the power button to turn the moni tor on or off. The other control buttons are located at front panel of the monitor (See Figure 3). By changing these settings, the picture can be adjust ed to your personal preferences. • T he pow er cord should be connected. • Connect t[...]
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Page 9
41L1700-786-7A 英文 8 FRONT PA NEL CONTROL • / Pow er Button: Press this button to turn the monitor ON or OFF, And display the monitor’s state. • Pow er Indic ator: Blue — Pow er On mode. Orange — Power saving. Light blue — Off mode. • / MENU / ENTER : Activate OSD menu when OSD is OFF or activate/de-activate adjustment function whe[...]
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Page 10
41L1700-786-7A 英文 9 1. Press the MENU-button to activate the OSD window . 2. Press < or > to select the desired function. 3. Press the MENU-button to select the function that you w ant to adjust. 4. Press < or > to change the se ttings of the current function. 5. To exit and save, select the exit f unction. If you want to adjust any[...]
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Page 11
41L1700-786-7A 英文 10 III. Dual-Input Model, Digital Signal Input ADJUSTING THE PICTURE The descriptions for function control LEDS Main Menu Icon Sub Menu Icon Sub Menu Item Description Contrast Adjusts the cont rast between the foreground and background of the screen image. Brightness Adjusts the background brightness of the screen image. Focus[...]
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Page 12
41L1700-786-7A 英文 11 N/A English N/A 繁體中文 N/A Deutsch N/A Français N/A Español N/A Italiano N/A 简体中文 N/A 日本語 Multi-language selection. H. Position Adjust the horiz ontal position of the OSD. V. Position Adjust the vert ical position of the OSD. OSD Timeout Adjust the OSD timeout. (only Analog- input Model) N/A Auto Confi[...]
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Page 13
41L1700-786-7A 英文 12 HOW TO OPTIMIZE THE DOS-MODE PLUG AND PLAY Plug & Play DDC1/2B Feature This monitor is equipped with VESA DDC1/2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display [...]
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Page 14
41L1700-786-7A 英文 13 TECHNICA L SUPPORT (FA Q) Problem & Question Possible Solution Power LED is not on *Check if the Powe r Switch is in the ON position *Power Cord should be connected No Plug & Play *Check if the PC system is Plug & Play compatible *Check if the Video Card is Plug & Play compatible *Check if the D-15 plug pin [...]
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Page 15
41L1700-786-7A 英文 14 Screen image is not centered or sized properly. *Adjust pixel frequency (CLOCK) and FOCUS or press hot-key (AUTO) Picture has color defects (white does not look w hite) *Adjust RGB color or select color temperature Horizontal or vertical disturbances on the screen *Use win 95/98 shut-dow n mode Adjust CLOCK and FOCUS or per[...]
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Page 16
41L1700-786-7A 英文 15 ERROR MESSAGE & POSSIBLE SOLUTION CA BLE NOT CONNECTED : 1. Check that the signal-cable is pr operly connected , If the connector is loose, tighten the connector’s screws. 2. Check the signal -cable connection pins for damage. INPUT NOT SUPPORT : Your computer has been set to unsuitabl e display mode ,set the computer[...]
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Page 17
41L1700-786-7A 英文 16 A PPENDIX SPECIFICA TIONS Driving system T FT Color LCD LCD Panel Size 43.2cm(17.0") Pixel pitch 0.264mm( H )x 0.264mm( V ) Brightness 260cd/m 2 (Typical) Contrast 450:1(Typical) Viewable angle 140 ° (H) 140 ° (V) Response time 16 ms(Tr+T f)Tr=4ms/Tf=12ms R,G,B Analog Interface Video Digital interface(Dual-Input Mode[...]
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Page 18
41L1700-786-7A 英文 17 Switch • Auto Adjust Key • </Volume • >/ Volume • Power Button • MENU/ Exit External Controls: Functions • Contrast • Brightness • Focus • Clock • H.Position • V.Position • Input signal Selection (Dual model only) • Language • Auto configuration (Analog model only) • (Warm) Color • (Coo[...]
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Page 19
41L1700-786-7A 英文 18 Preset Display Modes STANDARD RESOLUTION HORIZONT AL FREQUENCY(KHz) VERTICAL FREQUENCY(Hz) 640 × 480 31.469 59.940 VGA 640 × 480 37.500 75.000 800 × 600 37.879 60.317 SVGA 800 × 600 46.875 75.000 1024 × 768 48.363 60.004 1024 × 768 56.476 70.069 XGA 1024 × 768 60.023 75.029 1280 × 1024 64.000 60.000 VESA SXGA 1280 ?[...]
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Page 20
41L1700-786-7A 英文 19 15 6 10 11 15 15 - Pin Color Display Signal Cable PIN NO. DESCRIPTION PIN NO. DESCRIPTION 1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-return 13. H-Sy nc 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground (Dual-Input Model) Pin Meaning Pin M[...]