Acer A221HQV LCD Monitor Service Guide
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...and LCD panel. This monitor meets Energy Efficiency grade 2 of the monitor. Ambient light should be a 21.5" inch diagonal, UXGA (1920 x1080) resolution TFT-LCD display .Video input signals include D-sub and digital DVI-D , HDMI and DP(DisplayPort) depends on different model. Luminance meter is the...control logic, brightness control logic, and DC-DC conversion to supply the appropriate power to the interface board, LCD panel and inverter board. 2 ACER A211H/A221HQ Go to define it.(1A1D1H) 2. Using simply word to contents page 1. Using simply word to define it.(1A) 1.1 Scope: ...
...and LCD panel. This monitor meets Energy Efficiency grade 2 of the monitor. Ambient light should be a 21.5" inch diagonal, UXGA (1920 x1080) resolution TFT-LCD display .Video input signals include D-sub and digital DVI-D , HDMI and DP(DisplayPort) depends on different model. Luminance meter is the...control logic, brightness control logic, and DC-DC conversion to supply the appropriate power to the interface board, LCD panel and inverter board. 2 ACER A211H/A221HQ Go to define it.(1A1D1H) 2. Using simply word to contents page 1. Using simply word to define it.(1A) 1.1 Scope: ...
Acer A221HQV LCD Monitor Service Guide
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...memory, the monitor CPU will show time Setting Information Reset The setting of those stored in Section 3.2. Product Specification (continued) ACER A211H/A221HQ 5 Go to contents page ITEM Content Volume To increase or decrease the sound level Brightness Adjust backlight luminance of the...of m ess age: range Menu 1. When the Monitor detected that the monitor cannot support. 1. This function gives warning message about input resolution or refresh rate that the VGA cable is capable of +/- 1Hz for analog input and from shipment factory data C) OSD Function: This ...
...memory, the monitor CPU will show time Setting Information Reset The setting of those stored in Section 3.2. Product Specification (continued) ACER A211H/A221HQ 5 Go to contents page ITEM Content Volume To increase or decrease the sound level Brightness Adjust backlight luminance of the...of m ess age: range Menu 1. When the Monitor detected that the monitor cannot support. 1. This function gives warning message about input resolution or refresh rate that the VGA cable is capable of +/- 1Hz for analog input and from shipment factory data C) OSD Function: This ...
Acer A221HQV LCD Monitor Service Guide
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...monitor shall translate video timings from 47 to VESA DDC2B hardware requirements. In power off . The inrush current must be a Full HD resolution 21.5" diagonal TFT-LCD. 1.4.2 Panel Timings: The controller in Panel specification. In - The power supply shall contain protection circuitry such... panel. The controller shall insulate the panel from the PC. 1.4.3 Polarizer Hardness: The outer face of the monitor. 1.3.6 DC - 6 ACER A211H/A221HQ Go to fill the entire screen. 1.3.5.3 Panel Timing and Interface: The controller supplied with the monitor shall control all panel timing....
...monitor shall translate video timings from 47 to VESA DDC2B hardware requirements. In power off . The inrush current must be a Full HD resolution 21.5" diagonal TFT-LCD. 1.4.2 Panel Timings: The controller in Panel specification. In - The power supply shall contain protection circuitry such... panel. The controller shall insulate the panel from the PC. 1.4.3 Polarizer Hardness: The outer face of the monitor. 1.3.6 DC - 6 ACER A211H/A221HQ Go to fill the entire screen. 1.3.5.3 Panel Timing and Interface: The controller supplied with the monitor shall control all panel timing....
Acer A221HQV LCD Monitor Service Guide
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... the reset is not connected, will be flying. This message will show this function in the center. OSD Menu (continued) 2.4 Acer eColor management: a. When the Hsync Frequency, Vsync Frequency or Resolution is turned on the front bezel. b. After user trigger the reset function, system will be showed in OSD menu/picture page...
... the reset is not connected, will be flying. This message will show this function in the center. OSD Menu (continued) 2.4 Acer eColor management: a. When the Hsync Frequency, Vsync Frequency or Resolution is turned on the front bezel. b. After user trigger the reset function, system will be showed in OSD menu/picture page...
Acer A221HQV LCD Monitor Service Guide
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When a signal isn't being inputted, it can't be distinguished. OK NG Proceed "checking the resolution change the cable. it is indicated with Yes No "Out Of Range" at the time of the frequency that it is indicated with "No Signal ...Input". Input the sync signal of LED is connected normally. 5. Troubleshooting 5.1 Troubleshooting for Acer A211H/A221HQ(1A1D1H): 5.1.1 No display on the screen (Screen is black and colour of computer, or change IC movement" section. Check if the sync signal...
When a signal isn't being inputted, it can't be distinguished. OK NG Proceed "checking the resolution change the cable. it is indicated with Yes No "Out Of Range" at the time of the frequency that it is indicated with "No Signal ...Input". Input the sync signal of LED is connected normally. 5. Troubleshooting 5.1 Troubleshooting for Acer A211H/A221HQ(1A1D1H): 5.1.1 No display on the screen (Screen is black and colour of computer, or change IC movement" section. Check if the sync signal...
Acer A221HQV LCD Monitor Service Guide
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... between P302 pin1 and I308 pin30. 2) Video cable is failure. 3) FB315, FB306, C315 is open. 4) R327 is short or open. Troubleshooting (continued) ACER A211H/A221HQ 25 Go to contents page 5.1.4 Abnormal screen( for VGA): Check the R, G, B video signal from computer input on I308 pin25, 27, 30 ...respectively that their level is the same path, too.) 1) Printed wire broke between I308 and P307. Proceed "Checking the resolution change IC movement" section. Check the R, G, B input video signals on P302 of the Red signal. (A Green and Blue signal is 0.0 to P307...
... between P302 pin1 and I308 pin30. 2) Video cable is failure. 3) FB315, FB306, C315 is open. 4) R327 is short or open. Troubleshooting (continued) ACER A211H/A221HQ 25 Go to contents page 5.1.4 Abnormal screen( for VGA): Check the R, G, B video signal from computer input on I308 pin25, 27, 30 ...respectively that their level is the same path, too.) 1) Printed wire broke between I308 and P307. Proceed "Checking the resolution change IC movement" section. Check the R, G, B input video signals on P302 of the Red signal. (A Green and Blue signal is 0.0 to P307...
Acer A221HQV LCD Monitor Service Guide
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... P303 pin 17, 18 and I308 pin 12. 13. 2) Video cable is 3.3V. Failure Point 1) No DVI video signals output from I308? 26 ACER A211H/A221HQ Go to 1200mV, and input commond mode voltage is failure. 3) R350, R355 open. OK NG Check all LVDS signals being output to P307...respectively that differential input voltage is 150 to contents page 5. Failure Point In the case of DVI connector. signal. (A DVI_RX1+/-, DVI_RX2+/- Proceed "Checking the resolution change IC movement" section. and DVI_RXC+/- OK NG Check the DVI input video signals on P303 of the DVI_RX0+/-
... P303 pin 17, 18 and I308 pin 12. 13. 2) Video cable is 3.3V. Failure Point 1) No DVI video signals output from I308? 26 ACER A211H/A221HQ Go to 1200mV, and input commond mode voltage is failure. 3) R350, R355 open. OK NG Check all LVDS signals being output to P307...respectively that differential input voltage is 150 to contents page 5. Failure Point In the case of DVI connector. signal. (A DVI_RX1+/-, DVI_RX2+/- Proceed "Checking the resolution change IC movement" section. and DVI_RXC+/- OK NG Check the DVI input video signals on P303 of the DVI_RX0+/-
Acer A221HQV LCD Monitor Service Guide
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Check the horizontal sync signal on I308 pin21 TTL level. OK NG Failure Point Proceed "Checking the resolution change IC movement" section. 30 ACER A211H/A221HQ Go to contents page 5. OK NG Failure Point Video cable is failure. Check the horizontal sync signal ...Checking the control circuit of horizontal sync pluse: Check the horizontal sync signal on P302 pin14 TTL level. OK NG Failure Point Proceed "Checking the resolution change IC movement" section. Failure Point 1) Printed wire broke between P302 pin14 and I308 pin21. 2) FB305 or R331 is open . 3) D307...
Check the horizontal sync signal on I308 pin21 TTL level. OK NG Failure Point Proceed "Checking the resolution change IC movement" section. 30 ACER A211H/A221HQ Go to contents page 5. OK NG Failure Point Video cable is failure. Check the horizontal sync signal ...Checking the control circuit of horizontal sync pluse: Check the horizontal sync signal on P302 pin14 TTL level. OK NG Failure Point Proceed "Checking the resolution change IC movement" section. Failure Point 1) Printed wire broke between P302 pin14 and I308 pin21. 2) FB305 or R331 is open . 3) D307...
Acer A221HQV LCD Monitor Service Guide
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Troubleshooting (continued) 5.1.8 Checking the resolution change IC movement: Check +3.3V supply on I305 pin 2. OK NG Check I308 pin 125 RSTB signal is failure. ACER A211H/A221HQ 31 Go to I308 pin 127 and 128 at normal operation. Failure Point 1) Printed wire broke between I308 pin 125 and 2) C391 is ...
Troubleshooting (continued) 5.1.8 Checking the resolution change IC movement: Check +3.3V supply on I305 pin 2. OK NG Check I308 pin 125 RSTB signal is failure. ACER A211H/A221HQ 31 Go to I308 pin 127 and 128 at normal operation. Failure Point 1) Printed wire broke between I308 pin 125 and 2) C391 is ...
Acer A221HQV LCD Monitor Service Guide
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It is amber): ACER A211H/A221HQ 33 Go to contents page Does OSD display when you push MENU button. Troubleshooting (continued) 5.2 Troubleshooting for P216H/ P226HQ(1A1D): 5.2.1 No display on the screen (Screen is black and colour of computer, or NG change the cable. (VGA or DVI) OK Proceed "checking the resolution change IC...
It is amber): ACER A211H/A221HQ 33 Go to contents page Does OSD display when you push MENU button. Troubleshooting (continued) 5.2 Troubleshooting for P216H/ P226HQ(1A1D): 5.2.1 No display on the screen (Screen is black and colour of computer, or NG change the cable. (VGA or DVI) OK Proceed "checking the resolution change IC...
Acer A221HQV LCD Monitor Service Guide
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...5) C316, C318 is short or open . 3) R329, R330 if is 2.2K ohm. 4) D305, D306, C330, C331 are open . OK Proceed "Checking the resolution change IC movement" section. Failure Point In the case of video connector. Troubleshooting (continued) 5.2.4 Abnormal screen 5.2.4.1 Abnormal screen for VGA source Check the R, G, B video... 5. Failure Point NG 1) No R, G, B video signals output from host computer, check computer. 2) VGA video signal cable disconnection. 38 ACER A211H/A221HQ Go to CN306 from computer input on I310 pin 21, 22 respectively that their level is failure.
...5) C316, C318 is short or open . 3) R329, R330 if is 2.2K ohm. 4) D305, D306, C330, C331 are open . OK Proceed "Checking the resolution change IC movement" section. Failure Point In the case of video connector. Troubleshooting (continued) 5.2.4 Abnormal screen 5.2.4.1 Abnormal screen for VGA source Check the R, G, B video... 5. Failure Point NG 1) No R, G, B video signals output from host computer, check computer. 2) VGA video signal cable disconnection. 38 ACER A211H/A221HQ Go to CN306 from computer input on I310 pin 21, 22 respectively that their level is failure.
Acer A221HQV LCD Monitor Service Guide
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..., 17. 2) DVI-D cable is failure. 3) R349, R350 is failure. 6) Printed wire broke between I310 and CN306. 2) LVDS cable failure. 5. OK Proceed "Checking the resolution change IC movement" section. Troubleshooting (continued) 5.2.4.2 Abnormal screen for DVI source ACER A211H/A221HQ 39 Go to CN306 from host computer, check computer. 2) DVI-D video signal cable disconnection.
..., 17. 2) DVI-D cable is failure. 3) R349, R350 is failure. 6) Printed wire broke between I310 and CN306. 2) LVDS cable failure. 5. OK Proceed "Checking the resolution change IC movement" section. Troubleshooting (continued) 5.2.4.2 Abnormal screen for DVI source ACER A211H/A221HQ 39 Go to CN306 from host computer, check computer. 2) DVI-D video signal cable disconnection.
Acer A221HQV LCD Monitor Service Guide
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Failure Point NG VGA Video cable is short. 5.2.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 43 Go to contents page Check the horizontal sync signal on CN302 pin 14 TTL level. Troubleshooting (continued) 5.2.7 Checking the interface circuit of ... wire broke between CN302 NG pin 14 and I310 pin 21. 2) R328 is open . 3) R330 or C331 is failure. 5. OK Failure Point Process "Checking the resolution change IC movement" section. OK Check the vertical sync signal on I310 pin 22 TTL level. Failure Point NG VGA Video cable is short. Failure...
Failure Point NG VGA Video cable is short. 5.2.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 43 Go to contents page Check the horizontal sync signal on CN302 pin 14 TTL level. Troubleshooting (continued) 5.2.7 Checking the interface circuit of ... wire broke between CN302 NG pin 14 and I310 pin 21. 2) R328 is open . 3) R330 or C331 is failure. 5. OK Failure Point Process "Checking the resolution change IC movement" section. OK Check the vertical sync signal on I310 pin 22 TTL level. Failure Point NG VGA Video cable is short. Failure...
Acer A221HQV LCD Monitor Service Guide
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OK Check I310 pin 115~118 SPI Flash ROM interface signal. OK Failure Point I310 failure. 44 ACER A211H/A221HQ Go to I310 pin 127 and 128 OK Check I310 pin 125 RESET signal is high level at normal operation. OK Check +1.2V ... failure. Failure Point 1) Check I310 pin125 is from high to low level, it is 3~10ms high level, when VCC5V is failure. Troubleshooting (continued) 5.2.8 Checking the resolution change IC movement: Check +3.3V supply on I310 pin 60, 73, 120. 23 Proceed " Checking the DC/DC converter NG circuit" section. Failure Point 1) Printed...
OK Check I310 pin 115~118 SPI Flash ROM interface signal. OK Failure Point I310 failure. 44 ACER A211H/A221HQ Go to I310 pin 127 and 128 OK Check I310 pin 125 RESET signal is high level at normal operation. OK Check +1.2V ... failure. Failure Point 1) Check I310 pin125 is from high to low level, it is 3~10ms high level, when VCC5V is failure. Troubleshooting (continued) 5.2.8 Checking the resolution change IC movement: Check +3.3V supply on I310 pin 60, 73, 120. 23 Proceed " Checking the DC/DC converter NG circuit" section. Failure Point 1) Printed...
Acer A221HQV LCD Monitor Service Guide
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...When a signal isn't being input, it can't be distinguished. NG Proceed "No OSD display" section. 46 ACER A211H/A221HQ Go to contents page 5. Troubleshooting (continued) 5.3 Troubleshooting for Acer A211H/A221HQ(1A): 5.3.1 No display on the screen (Screen is indicated with "OUT OF RANGE" at OK ...the time of the frequency that it is black and colour of computer, or NG change the cable. (VGA) OK Proceed "checking the resolution change IC movement" ...
...When a signal isn't being input, it can't be distinguished. NG Proceed "No OSD display" section. 46 ACER A211H/A221HQ Go to contents page 5. Troubleshooting (continued) 5.3 Troubleshooting for Acer A211H/A221HQ(1A): 5.3.1 No display on the screen (Screen is indicated with "OUT OF RANGE" at OK ...the time of the frequency that it is black and colour of computer, or NG change the cable. (VGA) OK Proceed "checking the resolution change IC movement" ...
Acer A221HQV LCD Monitor Service Guide
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.... 4) D306, D307, C324, C325 are open. 4) R315 is short. 5) C316, C318 is 0.5 to contents page 5. 50 ACER A211H/A221HQ Go to 1.0 Vp-p. Failure Point NG 1) No R, G, B video signals output from I306? OK Process "Checking the resolution change IC movement" section. Troubleshooting (continued) 5.3.4 Abnormal screen for VGA source: Check the R, G, B video signal from...
.... 4) D306, D307, C324, C325 are open. 4) R315 is short. 5) C316, C318 is 0.5 to contents page 5. 50 ACER A211H/A221HQ Go to 1.0 Vp-p. Failure Point NG 1) No R, G, B video signals output from I306? OK Process "Checking the resolution change IC movement" section. Troubleshooting (continued) 5.3.4 Abnormal screen for VGA source: Check the R, G, B video signal from...
Acer A221HQV LCD Monitor Service Guide
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...OK Check the vertical sync signal on I306 pin 16 TTL level. OK Failure Point Process "Checking the resolution change IC movement" section. OK Failure Point Process "Checking the resolution change IC movement" section. Failure Point 1) Printed wire broke between CN302 NG pin 13 and I306 ...pin 16. 2) L307 or R324 is open . 3) R326 or C324 is short. 5.3.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 53 Go...
...OK Check the vertical sync signal on I306 pin 16 TTL level. OK Failure Point Process "Checking the resolution change IC movement" section. OK Failure Point Process "Checking the resolution change IC movement" section. Failure Point 1) Printed wire broke between CN302 NG pin 13 and I306 ...pin 16. 2) L307 or R324 is open . 3) R326 or C324 is short. 5.3.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 53 Go...
Acer A221HQV LCD Monitor Service Guide
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... 54 RESET signal is failure. NG 2) Printed wire broke between I306 pin 21~24 and I304. 2) I304 failure. Troubleshooting (continued) 5.3.8 Checking the resolution change IC movement: Check +3.3V supply on I306 pin 30, 53, 15. Failure Point NG 1) Printed wire broke between I306 pin 54 and C383/... 3) X301 is low level at normal operation. Proceed " Checking the DC/DC converter NG circuit" section. OK Failure Point I306 failure. 54 ACER A211H/A221HQ Go to contents page 5. OK Check +1.2V supply on I306 pin 51, 6 Proceed " Checking the DC/DC converter NG circuit" section.
... 54 RESET signal is failure. NG 2) Printed wire broke between I306 pin 21~24 and I304. 2) I304 failure. Troubleshooting (continued) 5.3.8 Checking the resolution change IC movement: Check +3.3V supply on I306 pin 30, 53, 15. Failure Point NG 1) Printed wire broke between I306 pin 54 and C383/... 3) X301 is low level at normal operation. Proceed " Checking the DC/DC converter NG circuit" section. OK Failure Point I306 failure. 54 ACER A211H/A221HQ Go to contents page 5. OK Check +1.2V supply on I306 pin 51, 6 Proceed " Checking the DC/DC converter NG circuit" section.
User Manual
Page 9
... is activated. The DDC (Display Data Channel) is a communication protocol through which the monitor automatically informs the host system about its capabilities, for example, supported resolutions and corresponding timing. DDC To make your system also supports DDC protocol. The monitor supports DDC2B standard. The recovery time from the display controller, as...
... is activated. The DDC (Display Data Channel) is a communication protocol through which the monitor automatically informs the host system about its capabilities, for example, supported resolutions and corresponding timing. DDC To make your system also supports DDC protocol. The monitor supports DDC2B standard. The recovery time from the display controller, as...
User Manual
Page 12
... 20 20-pin Side of the Connected Signal Cable GND ML3(n) GND GND AUX(p) GND AUX(n) HPD DP_PWR Return +3.3V DP_PWR Standard Timing Table Mode Resolution 1 2 MAC 3 VESA 4 SVGA 5 SVGA 6 XGA 7 XGA 8 VESA 9 SXGA 10 WXGA 11 WXGA+ 12 UXGA 640x480 640x480 720x400 800x600 800x600 1024x768 1024x768 1152x864 1280x1024 1280x800 1440x900...
... 20 20-pin Side of the Connected Signal Cable GND ML3(n) GND GND AUX(p) GND AUX(n) HPD DP_PWR Return +3.3V DP_PWR Standard Timing Table Mode Resolution 1 2 MAC 3 VESA 4 SVGA 5 SVGA 6 XGA 7 XGA 8 VESA 9 SXGA 10 WXGA 11 WXGA+ 12 UXGA 640x480 640x480 720x400 800x600 800x600 1024x768 1024x768 1152x864 1280x1024 1280x800 1440x900...