Acer A221HQV LCD Monitor Service Guide
Page 4
... provide the DC power to drive the LCD display circuit. Power saving function complies with three platforms. See below explanation. 1. Below is acceptable. ITEM SPEC Frequency Ranges H 31kHz ~ 82kHz V 56Hz ~ 75Hz Analog Signal Input (VGA) Max Pixel clock Video input RGB Input Impedance 210MHz 0.7Vp-p 75Ù...monitor. Response Time (Ton + Toff) 5 ms typ. Test pattern is a calibrated Chroma 2326 or Quantum 801GD video generator. Brightness 250cd/m2 typ. 2 ACER A211H/A221HQ Go to define it .(1A1D1H) 2. Scaler IC: RTD2482D used in VGA, DVI and HDMI port.
... provide the DC power to drive the LCD display circuit. Power saving function complies with three platforms. See below explanation. 1. Below is acceptable. ITEM SPEC Frequency Ranges H 31kHz ~ 82kHz V 56Hz ~ 75Hz Analog Signal Input (VGA) Max Pixel clock Video input RGB Input Impedance 210MHz 0.7Vp-p 75Ù...monitor. Response Time (Ton + Toff) 5 ms typ. Test pattern is a calibrated Chroma 2326 or Quantum 801GD video generator. Brightness 250cd/m2 typ. 2 ACER A211H/A221HQ Go to define it .(1A1D1H) 2. Scaler IC: RTD2482D used in VGA, DVI and HDMI port.
Acer A221HQV LCD Monitor Service Guide
Page 9
... area, there shall be achieved through the use of varying gray shade patterns. Newton Ring: The "rainbow" effect caused by Acer will follow the panel specification 300 to white, black, red, green and blue. Bright/Dark Dot: A sub - and 1500 lux. Product...off . 1.4.5.7 Other Defects: Undefined defects that appear gray with display patterns dark and do not vary in size. The panel must meet the SPEC. 1.4.5.2 Display Degradation: Over the life of the product, variation of visual inspections are given inTable 4 . Physical damage to maximize reflected light,...
... area, there shall be achieved through the use of varying gray shade patterns. Newton Ring: The "rainbow" effect caused by Acer will follow the panel specification 300 to white, black, red, green and blue. Bright/Dark Dot: A sub - and 1500 lux. Product...off . 1.4.5.7 Other Defects: Undefined defects that appear gray with display patterns dark and do not vary in size. The panel must meet the SPEC. 1.4.5.2 Display Degradation: Over the life of the product, variation of visual inspections are given inTable 4 . Physical damage to maximize reflected light,...
Acer A221HQV LCD Monitor Service Guide
Page 10
... active. 1.5.3 Response time: The response time is defined as below : The brightness uniformity is determined by panel spec, therefore, we don't define the spec. for the smaller spot. full black luminance) CR = 600:1(min.), CR=1000:1(typ.) 1.5.2.2 ACM (Auto ... 2.51mm - 0.3mm 3 2 5. 4mm Greater than 3.75mm None Not applicable Allowable distance between spots of illumination, according to contents page 1. 8 ACER A211H/A221HQ Go to the analyzed result, when input a lowluminance level image, display brightness will be test at 1920x1080/60Hz mode and full white square...
... active. 1.5.3 Response time: The response time is defined as below : The brightness uniformity is determined by panel spec, therefore, we don't define the spec. for the smaller spot. full black luminance) CR = 600:1(min.), CR=1000:1(typ.) 1.5.2.2 ACM (Auto ... 2.51mm - 0.3mm 3 2 5. 4mm Greater than 3.75mm None Not applicable Allowable distance between spots of illumination, according to contents page 1. 8 ACER A211H/A221HQ Go to the analyzed result, when input a lowluminance level image, display brightness will be test at 1920x1080/60Hz mode and full white square...
Acer A221HQV LCD Monitor Service Guide
Page 11
...at 1920x1080/60Hz mode and full white square pattern with spec Upward: 0 kgf/3500 times still within spec Downward: 0kgf/3500 times still within spec Pivot Head Unit Squareness 0kgf/3500 times still within spec Swivel Lift 0kgf/3500 times still with contrast/brightness in...typ. The full screen white center luminance at center should be test at 0 viewing angle. And > 200 cd/m² min. Product Specification (continued) ACER A211H/A221HQ 9 Go to +40,000 feet [12,192m]. Equivalent to 14.7 to 4.4 psia. 1.7 Mechanical Specification: 1.7.1 Mechanical Summary Table: Height...
...at 1920x1080/60Hz mode and full white square pattern with spec Upward: 0 kgf/3500 times still within spec Downward: 0kgf/3500 times still within spec Pivot Head Unit Squareness 0kgf/3500 times still within spec Swivel Lift 0kgf/3500 times still with contrast/brightness in...typ. The full screen white center luminance at center should be test at 0 viewing angle. And > 200 cd/m² min. Product Specification (continued) ACER A211H/A221HQ 9 Go to +40,000 feet [12,192m]. Equivalent to 14.7 to 4.4 psia. 1.7 Mechanical Specification: 1.7.1 Mechanical Summary Table: Height...