User manual ACER P216HV

[. . . ] The AC adapter isolates this equipment from the AC supply. Unplug this product from the wall outlet before cleaning. Use a soft cloth to clean the monitor housing and a tape to stick dust and fingerprints on the screen panel. Slots and openings on the back or top of the cabinet are provided for ventilation. [. . . ] The scale can be adjust from maximum (100) to minimum (0). Press the "Exit" to save and leave OSD operation. 3. Main Menu Mode Control Functions Available in Main Menu 1. Brightness Press "Enter" to enter adjustment menu. Use fly wheel to adjust brightness and then press "Exit" to return to main menu. Or you can roll the fly wheel right to find this function. 2. Contrast Press "Enter" to enter adjustment menu. Use fly wheel to adjust contrast ratio and then press "Exit" to return to main menu. Or you can roll the fly wheel left to find this function. English 36 Benq LCD Color Monitor User's Guide 3. Horizontal Position Press "Enter" to enter adjustment menu. Use fly wheel to adjust horizontal display position and then press "Exit" to return to main menu. 4. Vertical Position Press "Enter" to enter adjustment menu. Use fly wheel to adjust vertical display position and then press "Exit" to return to main menu. 5. Phase Press "Enter" to enter adjustment menu. Use fly wheel to adjust phase and then press "Exit" to return to main menu. English 37 Benq LCD Color Monitor User's Guide 6. Clock Press "Enter" to enter adjustment menu. Use fly wheel to adjust pixel clock and then press "Exit" to return to main menu. 7. Color Press "Enter" to enter selection menu. hIt can happen that the image is disrupted. This can occur as a result of a signal frequency from the VGA card, which does not correspond with the usual standard. You can improve this situation by altering an automatic setting or by manually changing the phase setting and the pixel frequency from the "Geometry" menu. hIf you switch off the monitor, interference lines can occur on your screen. But do not be concerned about this, as it is normal. hTo extend the service life of the product, we recommend that you use your computer's power management function. English 43 Benq LCD Color Monitor User's Guide Specifications Model Display type Viewable diagonal Native (maximum) resolution Colors Contrast / Brightness Response time Viewing angle (left/right, up/down) Dot Pitch Line frequency Image frequency Image checks 17. 0", active, TFT 43. 18 cm 1280 x 1024 16. 7 million 400:1 / 250 cd/m² 45 ms 60/60, 45/70 0. 264 mm 31. 47 - 60. 24 kHz Multi- frequency monitor 56. 25 - 75. 0 Hz modes within these parameters Digital, Screen OSD Technology, iKey (automatic image setting) mains switch, 2 buttons, one fly-wheel OSD, iKey. image position, phase, pixel clock, color balance, color palette, choice of language (6 language OSD), OSD position, status indicator VESA DPMS, EPA 50 Watt Max < 3 Watt RGB analog 0. 7 Vpp/75 Ohm positive TTL separate 15-pin mini D-sub cable 5 °C - 40 °C 20% - 85% TCO 99 (Optional), TÜV/Ergonomics, CSA, TÜV/GS, IEC950, FCC Class B, DSNF, ISO 13406-2, VCCI, UL, CB Report, CE, C-Tick, BSMI Automatic switched mode power supply, 90-264 V, 47-63Hz 422 x 451 x 207. 97 mm 6. 8 kg P216HV Controls iScreen functions Power Management max. power consumption Power saving mode Input signal Synchronisation Signal connection Temperature (operating) Air humidity (operating) Certifications Operating voltage Dimensions (W x H x D) Weight English 44 Benq LCD Color Monitor User's Guide Appendix: An Introduction to LCD Technology Principles of LCD Technology The functionality of LCD (Liquid Crystal Display) screens is based on the special physical properties of liquid crystals. Their rod shaped molecules arrange themselves similarly to the molecules of crystals - always uniformly and in one particular direction. Yet liquid crystals are not set in this orientation, but behave like a liquid: They can be manipulated by applying an electric voltage. The layers of the liquid crystal molecules can therefore be longitudinal or diagonal to the polarising direction of the light and thereby have a varying effect on the course of light waves. LIQUID CRYSTALS POLARISE INCIDENT LIGHT An LC display consists of two polarising filters, a control layer, the respective colour filters and the liquid crystal layer. [. . . ] Pixel errors Pixel errors are (unfortunately) unavoidable with today's production methods, if you want to manufacture displays at an economically sensible price. A display with a resolution of 1024x768 dots therefore has 786432 pixels. Each pixel consists of the three sub-pixels for red, green and blue. That makes 2, 359, 296 individual control transistors. [. . . ]