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First and foremost, an user manual of Acer AL2051 should contain:
- informations concerning technical data of Acer AL2051
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- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Acer AL2051 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 AL2051, 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 AL2051.
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Table of contents for the manual
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Page 1
TABLE OF CONTENTS FOR YOUR SAFETY -------------------------------------------------- 1 SAFETY PRECAUTIONS -------------------------------------- 2 SPECIAL NOTES ON LCD MONITORS ------------------- 3 BEFORE YOU OPERATE THE MONITOR --------------------- 3 FEATURES -------------------------------------------------------- 3 PACKING LIST ---------------[...]
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1 manual should be retained for future reference. F CC Class B Ra di o F re qu e n cy I n terfere n ce Stateme n t W A RNING: (FOR FCC CERTIFIED MODELS) NOTE: T his equipment has been tested and found to comply w ith the limits for a Class B digital device, pursuant to P a rt 15 of the F CC R u les. T hese limits are designed to provide reasonable [...]
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2 z F or use only w ith the attached po w er adapter (Output 12Vdc) w h ich have UL, CSA listed license PREC A U TIONS z Do not use the monitor near w a ter, e.g. near a bathtub, w ashbo w l, kitchen sink, laundry tub, s w imming pool or in a w e t basement. z Do not place the monitor on an unstable cart, stand, or table. If the monitor falls, it c[...]
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3 SPECI A L NOTES ON LCD MONITORS T he follo w ing s y mptoms are normal w ith LCD monitor and do not indicate a problem. NOTES • Due to the nature of the fluores c ent light, the screen may flicker during initial use. T u rn off the Po w e r S w i t ch and then turn it on again to make sure the flicker disappears. • You may find slightly uneve[...]
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4 POWERCORD Po w e r Source: 1. Make sure that the po w er cord is the correct t y pe required in y our area. 2. T h is LCD monitor has an External univer s al po w er supply that allo w s operation in either 100/120V AC or 220/240V AC v o ltage area (No user adjustment is required.) NOTES A certified po w er supply cord has to be used w ith this e[...]
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5 CONTROLS A ND CONNECTORS C A BLE CONNECTIONS T u rn off y our computer befo r e performing the procedure belo w . 1. Connect the po w er adapter dc cab l e to the DC-In port on the back of the monitor. 2. Conne c t one end of t he 15 - pin D - S ub c able t o t he ba c k of t he monitor and connect the other end to t he computer’s D-Sub port. 3[...]
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6 • F o r optimal vie w ing it is recommended to look at the full face of the monitor, then adjust the monitor ’ s angle to y our o w n preference. • Hold the stand so y ou do not t opple the monitor w hen y ou change the monitor’s angle. F igure 2 NOTES • Do not touch the LCD screen w hen y ou change the angle. It may cause damage or bre[...]
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7 OPER A T ING INSTRUCTIONS GENERAL INSTRUCTIONS Press the po w er button to turn the mon i tor on or off. T he other control buttons are located at front panel of the monitor (See F igure 3). By changing these settings, the picture can be adjus t ed to y our personal preferences. • T he po w er cord should be connected. • Connect the video cab[...]
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8 FRONT P A NEL CONTROL • Po w e r Button: Press this button to turn the monitor ON or O FF , And display the monitor’s state. • Po w e r Indi ca tor: Blue — Po w e r On mode. Orange — Po w e r off. • MENU / ENTER : Activate OSD menu w hen OSD is O F F or activate/de-activate adjustment function w hen OSD is ON or Exit OS D menu w hen i[...]
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9 1. Press the MENU-button to activate the OSD w indo w . 2. Press < or > to select the desired function. 3. Press the MENU-button to select the function that y ou w ant to adjust. 4. Press < or > to change the s e ttings of the current function. 5. T o exit and save, select the exit f unction. If y ou w ant to adjust any other function[...]
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10 III. Dual-Input Model, Digital Signal Input ADJUSTING THE PICTURE T he descriptions for function control LEDS Main M e nu I c on Sub M e nu I c on Sub M e nu Item Descri p ti o n Contrast Adjusts the con t rast bet w een the foreground and background of the screen image. Brightness Adjusts the background brightness of the screen image. Focus Adj[...]
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11 N/A language Multi-language selection. H. Position Adjust the hori z ontal position of the OSD. V. Position Adjust the vert ical position of the OSD. OSD T imeout Adjust the OSD timeout. (only Analog- input Model) N/A Auto Config Auto Adjust the H/V Position, F o cus and Clock of picture. N/A Analog Select input signal from analog (D-Sub) (only [...]
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12 PLUG AND PLAY Plug & Play DDC2B Feature T his monitor is equipped w ith VESA DDC2B capabilities according to the VESA DDC S T ANDARD. It allo w s the monitor to inform the host s y stem of its identity and, depending on the level of DDC used, communicate additional information about its display capabili t ies. T he DDC2B is a bidirectional d[...]
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13 TECHNIC A L SUPPORT (F A Q ) Problem & Question Possible Solution Po w e r LED is not on *Check if the Po w e r S w itch is in the ON position *Po w er Cord should be connected No Plug & Play *Check if the PC s y stem is Plug & Play compatible * Check if the Video Card is Plug & Play compatible *Check if the D-15 plug pin of Vide[...]
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14 Screen image is not centered or sized properl y . * Adjust pixel frequency (CLOCK) and FO CUS or press hot-key (AU T O) Picture has color defects ( w hite does not look w h ite) * Adjust RGB color or select color temperature Horizontal or vertical disturbances on the screen * Use w in 95/98 shut-do w n mode Adjust CLOCK and FO CUS or perform hot[...]
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15 ERROR MESS A GE & POSSIBLE SOLUTION C A BLE NOT CONNECTED : 1. Check that the signal-cable is p r operly connected, If the connector is loose, tighten the connector’s scre w s. 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 to display mode [...]
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16 A PPENDIX SPECIFIC A T IONS Driving s y stem T F T Color LCD LCD Panel Size 51 cm( 20 ") Pi x e l pitch 0.2 58 mm( H )x 0.2 58 mm( V ) Brightness 300cd/ m2 ( T y p ical) Contrast 8 00:1( T y pical) Vie w able angle 1 76 ° (H) 1 76 ° (V) Response time 8ms Gray to Gray R,G,B Analog Interface Video Digital interface(Only Dual-Input Model) H-[...]
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17 S w itch • Auto Adjust Key • </V o l u me • >/ V o l u me • Po w e r Button • MENU External Controls: F unctions • Contrast • Brightness • Focus • Clock • H.Position • V.Position • Input signal Selection (Only Dual-Input Model) • Language • Auto configuration (only Analog-input Model) • (Warm) Color • (Cool)[...]
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VESA MODES Horizontal Vertical Resolution Total Nominal Frequenc y +/- 0.5kHz Syn c Polarity Nominal Freq. +/- 0.5kHz Syn c Polari ty Nominal Pixel Clock(M Hz) 640 X 48 0 @ 60 Hz 80 0 X5 2 5 31.4 6 9 N 59.9 4 0 N 25.1 7 5 640 X 48 0 @ 72 Hz 83 2 X5 2 0 37.8 6 1 N 72.8 0 9 N 31.5 0 0 640 X 48 0 @ 75 Hz 84 0 X5 0 0 37.5 0 0 N 75.00 N 31.5 0 0 640 X 4[...]
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19 15 6 10 11 15 15 - Pin Color Display Signal Cable PIN NO. DESCRIP T ION PIN NO. DESCRIP T ION 1. Red 9. + 5 V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-return 13. H-S y nc 6. R-Ground 14. V-S y nc 7. G-Ground 15. DDC-Serial Clock 8. B-Ground (Dual-Input Model) 24 - Pin Color Display Signal [...]