Acer A221HQV Service Manual
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Acer A221HQV Service Manual

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Model ID: RG215AC-CAU-AN02

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Summary of Contents for Acer A221HQV

  • Page 1 ACER_LCD_A211H/A221HQ_SM20100512V1 Model ID: RG215AC-CAU-AN02...

  • Page 2: Table Of Contents

    ACER A211H/A221HQ ACER_LCD_A211H/A221HQ_SM20100512V1 Contents Table of Contents Important Safety Notice------------------------------------------------------------------------------------- 01 01. Product Specification--------------------------------------------------------------------------------- 02 02. OSD Menu-----------------------------------------------------------------------------------------------10 03. Exploded Diagram------------------------------------------------------------------------------------- 12 04. Assembly and Disassembly Procedures-----------------------------------------------------------14 05. Troubleshooting----------------------------------------------------------------------------------------21 06. Firmware Upgrade Procedure------------------------------------------------------------------------58 07. Writing EDID Procedure-------------------------------------------------------------------------------60 08. Block Diagram------------------------------------------------------------------------------------------ 62 Appendix I : User’s Manual...

  • Page 3: Important Safety Notice

    Important Safety Notice Using Lead-Free solder to well mounted the parts. ! The fusion point of Lead-Free solder requested in the degree of 220°C. ACER A211H/A221HQ Go to contents page...

  • Page 4: Product Specification

    ACER A211H/A221HQ Go to contents page This model combine with three platforms. See below explanation. 1. Scaler IC: RTD2482D used in VGA, DVI and HDMI port. Using simply word to define it.(1A1D1H) 2. Scaler IC: RTD2281 used in VGA and DVI port. Using simply word to define it.(1A1D)
  • Page 5 DDC-SCL SCL signal input for the VESA DDC2Bi function Product Specification (continued) B. DVI-D (Digital TMDS) Connector C. HDMI Connector D. Flat Panel Connector Description ACER A211H/A221HQ Go to contents page Signal TMDS Data 2- TMDS Data 2+ +5V P OWE R TMDS Data GND...
  • Page 6 Press this button to activate the Auto Adjustment Auto Adjust Function function. The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus. Press the Empowering Key to open the Acer Empowering eColor Management OSD and access the scenario modes.

  • Page 7: Preset Timing Chart

    30KHz>F H>83KHz(Digital) 1.3.4.3 Mode Recognition Pull-in: 1.3.5 Controller Requirements: 1.3.5.1 General Requirements: ACER A211H/A221HQ Go to contents page monitor shall display a warning screen indicating that the input frequency is out of range. Under no circumstances shall any combination of input signals cause any damage to the monitor.
  • Page 8 ACER A211H/A221HQ Go to contents page DVI digital signal to the panel. The controller will include a PLL, A/D converters, TMDS receiver and other circuitry necessary to perform its function. The PLL shall be stable enough to ensure a stable image.
  • Page 9 1.4.5.7 Other Defects: Undefined defects that are considered to be rejectable by Acer will be reviewed by Wistron as they become apparent. These panels will be referred to the Wistron Corporate / Manufacturer Purchasing Agreement for disposition 1.4.5.8 LCD Inspection:...
  • Page 10 ACER A211H/A221HQ Go to contents page Table 4. Desc riptiv e Terms Average Diameter Acceptable Smaller of (L+W)/2 or Number L/20 + 2W < 0.1mm Non countable 0.1mm - 0.3mm 0.31mm - 0.5mm 0.51mm - 1.25mm 1.26mm - 2.5mm 2.51mm - 0.3mm Greater than 3.75mm...
  • Page 11 All packaging materials are subject to be tested and evaluated. The container loading is 2000sets/40'. The outside dimension of carton box is 570(L)x114(W)x396(H)mm. ACER A211H/A221HQ Go to contents page 370mm 161 mm /52.5mm(without base cover) 511.3mm 570L)x114(W)x396(H)mm 4.95kg...

  • Page 12: Osd Menu

    Item page status In put Switch Volume Management OSD Main Menu OSD Auto Config Non- focus Trigger the Acer eColor Ma nagement Item focused Item selected 2.3.2 Key operation: a. Key operation at function icon. Item page for each function group b.

  • Page 13: Osd Message

    2.4 Acer eColor management: a. Display Acer eColor management OSD when user press “e” button at Function menu or trigger this function in OSD menu/picture page. b. Layout as following figure. OSD layout for the acer eColor management 2.5 Volume management OSD: a.

  • Page 14: Exploded Diagram

    ACER A211H/A221HQ 3. Exploded Diagram Go to contents page 3.1 Product Exploded Diagram:...
  • Page 15 ACER A211H/A221HQ 3. Exploded Diagram (continued) Go to contents page 3.2 Packing Exploded Diagram:...

  • Page 16: Assembly And Disassembly Procedures

    ACER A211H/A221HQ Go to contents page 4.1 Assembly procedures: Connect P802 of power board with P301 of interface board. Connect P003 of power board with P308 of interface board. Connect function key cable with P309 of interface board. Connect the speakers’...
  • Page 17 Connect FFC cable to LVDS connector, fix the cable with double faced adhesive tape which is sticked on the back of cable. ACER A211H/A221HQ Plug lamp cables to the connectors of power board, then fix the lamp cables with tapes.
  • Page 18 Lift up the LCD module, check the acer logo if it is firmly attached to the front bezel, connect a video cable and power cord with the monitor and turn on the monitor for functionality check.
  • Page 19 D-Sub cable, audio cable, DVI cable, power cable and UK cable on specific positions as the photo below. Seal the carton. UK CABLE POWER CABLE AUDIO CABLE DVI CABLE D-SUB CABLE USER’S MANUAL base ACER A211H/A221HQ Go to contents page...
  • Page 20 ACER A211H/A221HQ Go to contents page 4.2 Disassembly procedures: Open the carton with a proper tool. Take out all accessories including user’s manual, power cable, D-Sub cable, DVI cable, audio cable and other packing materials from the carton. (Note: It depends on whether users return the accessories.)
  • Page 21 FFC cable from the LVDS connector. . Put the Lift up the bracket chassis module for taking away the panel module, then put the bracket chassis module on a protective cushion . ACER A211H/A221HQ Go to contents page...
  • Page 22 4. Assembly and Disassembly Procedures (continued) ACER A211H/A221HQ Go to contents page Use a Hex-head screwdriver to remove 4 screws for unlocking mechanisms of the DVI and D-SUB connectors. (No.1~4 screw size=M3x8, Torque=5±1kgfxcm) Use a Phillips-head screwdriver to remove one screw for unlocking the HDMI or DP connector.

  • Page 23: Troubleshooting

    ACER A211H/A221HQ 5. Troubleshooting Go to contents page 5.1 Troubleshooting for Acer A211H/A221HQ(1A1D1H): 5.1.1 No display on the screen (Screen is black and colour of LED is amber): Does OSM display when you push “MENU key. When a signal isn't being inputted, it is indicated with "No...
  • Page 24 ACER A211H/A221HQ Go to contents page 5.1.2 Nothing displays on the screen (Screen is black and colour of LED is blue): Is backlight lit? Does computer output RGB video signals? Check OSM menu is display on screen when you push the "MENU"...
  • Page 25 Failure Point I308 is failure Failure Point 1) Printed wire broke between P307 and I308 LVDS signals. 2) I308 is failure. ACER A211H/A221HQ Go to contents page Proceed "Checking the DC/DC converter circuit" section. Proceed "Checking the DC/DC converter circuit" section.
  • Page 26 ACER A211H/A221HQ Go to contents page 5.1.3 Checking the back light unit: Is +22V supplied to inverter PWB? (by the power board) Check the BKLT_EN signal of the DC input P301 pin 2 at TTL high Check the BKLT_ADJ signal of the input P301 pin3 from I308 pin102 is a PWM signal.
  • Page 27 1) Printed wire broke between P302 pin1 and I308 pin30. 2) Video cable is failure. 3) FB315, FB306, C315 is open. 4) R327 is short or open. Failure Point Printed wire broke between I308 and P307. ACER A211H/A221HQ Go to contents page...
  • Page 28 ACER A211H/A221HQ Go to contents page 5.1.4 Abnormal screen (For DVI and the same for HDMI): Check the DVI video signal from computer input on P303 of DVI connector. Check the DVI input video signals on I308 pin 12,13,14,15,16,17,18,19 respectively that differential input voltage is 150 to 1200mV, and input commond mode voltage is 3.3V.
  • Page 29 2) Function key wire is failure. 3) Function key board is failure. Failure Point 1) Printed wire broke among P310 pin5, R503 and I308 pin50 2) Printed wire broke among P310 pin6 ,R504 and I308 pin51 ACER A211H/A221HQ Go to contents page...
  • Page 30 ACER A211H/A221HQ Go to contents page 5.1.6 Abnormal plug and play operation( for VGA): Confirm the host computer supplies DDC2B mode. Check the voltage on P302 pin 9 that is power DC 5 V. Check the signal on P302 pin12, 15 that is serial data / clock signal.
  • Page 31 DDC2B mode. Failure Point The Video cable is failure. Failure Point Printed wire broke between P303 pin 14 and pin 16. Failure Point The Video cable is failure. Failure Point I308 is failure. ACER A211H/A221HQ Go to contents page...
  • Page 32 ACER A211H/A221HQ Go to contents page 5.1.7 Checking the interface circuit of sync signal: 5.1.7.1 Checking the control circuit of horizontal sync pluse: Check the horizontal sync signal on P302 pin13 TTL level. Check the horizontal sync signal on I308 pin 22 TTL level.
  • Page 33 1) Printer wire broke between I308 pin 125 and 2) C391 is short. 3) I308 is failure. Failure Point 1) Printed wire broke between I308 pin 115, 116, 117 and I309 pin 2, 5,6. 2) I309 is failure. ACER A211H/A221HQ Go to contents page section. section.
  • Page 34 ACER A211H/A221HQ Go to contents page 5.1.9 Checking the DC/DC converter circuit: Check the 5V is output from P301 pin 4,5,6. Check the 5V is input to I304 pin3. Check the 3.3V is output from I304 pin2,4 Check the 3.3V is input to I305 pin3.
  • Page 35 5. Troubleshooting (continued) MENU button. Check if the sync signal (VGA or DVI) IC movement" section. ACER A211H/A221HQ Go to contents page Proceed "No OSD display" section. Input the sync signal of computer, or change the cable. (VGA or DVI)
  • Page 36 ACER A211H/A221HQ Go to contents page 5.2.2 Nothing displays on the screen (Screen is black and colour of LED is blue): Is backlight light up? Does computer output RGB video signals? (VGA or DVI) Check OSD menu is display on screen when you push the "MENU"...
  • Page 37 Check if the voltage on I302 pin 3 that is power DC at 3.3V from I301. Failure Point I302 is failure. ACER A211H/A221HQ Go to contents page Failure Point 1) Printed wire broke between CN301 pin9, 10, 11 and I301.
  • Page 38 ACER A211H/A221HQ Go to contents page 5.2.2 Nothing displays on the screen (Screen is black and colour of LED is blue)continued: Continue Check the 5V power are supplied on CN306 pin 1, 2, 3, (to the LCD panel module) Check the CN306 all LVDS signals.
  • Page 39 1) The wire between Power +22V and Inverter +22V is broken. 2) Power board failure. Failure Point 1) Printed wire broke between CN301 pin 13, and I310 pin 114. 2) R301 is open. 3) I310 is failure. ACER A211H/A221HQ Go to contents page...
  • Page 40 ACER A211H/A221HQ Go to contents page 5.2.4 Abnormal screen 5.2.4.1 Abnormal screen for VGA source Check the R, G, B video signal from computer input on CN302 of video connector. Check the R, G, B input video signals on I310 pin 25, 27, 30 respectively that their level is 0.5 to 1.0...
  • Page 41 1) Printed wire broke between CN303 pin 1, 2 and I310 pin 16, 17. 2) DVI-D cable is failure. 3) R349, R350 is open. Failure Point 1) Printed wire broke between I310 and CN306. 2) LVDS cable failure. ACER A211H/A221HQ Go to contents page...
  • Page 42 ACER A211H/A221HQ Go to contents page 5.2.5 Abnormal OSD display adjust problem: Check the input level whether was changed when pressed function keys on the CN304 pin 1, 2. (Normal is 3.3V, when push button, genertaed different voltage. Pin 1, 2 is 0.69V or 1.65V or 2.11V)
  • Page 43 The VGA video cable is failure. Failure Point 1) Printed wire broke between I304 pin 8, D307 and CN302 pin 9. 2) D307 is failure. Failure Point The VGA video cable is failure. Failure Point I304 is failure. ACER A211H/A221HQ Go to contents page...
  • Page 44 ACER A211H/A221HQ Go to contents page 5.1.6.2 Abnormal plug and play operation for DVI Confirm the host computer supplies DDC/CI mode. Check the voltage on CN303 pin 14, that is DC 5 V. Check the voltage on I305 pin 8, that is DC 5 V.
  • Page 45 I310 pin 21 TTL level. Failure Point Process "Checking the resolution change IC movement" section. 5. Troubleshooting (continued) ACER A211H/A221HQ Go to contents page Failure Point VGA Video cable is failure. Failure Point 1) Printed wire broke between CN302 pin 13 and I310 pin 22.
  • Page 46 ACER A211H/A221HQ Go to contents page 5.2.8 Checking the resolution change IC movement: Check +3.3V supply on I310 pin 49, 84, 106, 62, 1 Check +1.2V supply on I310 pin 60, 73, 120. 23 Check X301 14.318MHz clock input to...
  • Page 47 I301 is failure or C304 is short. Failure Point Printed wire broke between I301 pin2 and I302 pin3. Or both D313 and L313 open or C307 short. Failure Point I302 failure or both C308 and C310 short.. ACER A211H/A221HQ Go to contents page...
  • Page 48 ACER A211H/A221HQ Go to contents page 5.3 Troubleshooting for Acer A211H/A221HQ(1A): 5.3.1 No display on the screen (Screen is black and colour of LED is amber): When a signal isn't being input, it is indicated with "VIDEO INPUT". it is indicated with "OUT OF RANGE"...
  • Page 49 Failure Point 1) Printed wire broke between Q302 Pin C and D301 Pin A. 2)D301 or Q302 is failure. Next Page ACER A211H/A221HQ Go to contents page Failure Point 1) Printed wire broke between CN301 pin9, 10, 11 and I301.
  • Page 50 ACER A211H/A221HQ Go to contents page 5.3.2 Nothing displays on the screen (Screen is black and colour of LED is blue)continued: Continue Check the 5V power are supplied on CN304 pin 1, 2, 3, 4, 5 (to the LCD panel module) Check the CN304 all LVDS signals.
  • Page 51 1) The wire between Power +22V and Inverter +22V is broken. 2) Power board failure. Failure Point 1) Printed wire broke between CN301 pin 13, and I306 pin 56. 2) R301 is open. 3) I306 is failure. ACER A211H/A221HQ Go to contents page...
  • Page 52 ACER A211H/A221HQ Go to contents page 5.3.4 Abnormal screen for VGA source: Check the R, G, B video signal from computer input on CN302 of video connector. Check the R, G, B input video signals on I306 pin 8, 10, 13 respectively that their level is 0.5 to 1.0...
  • Page 53 1) Printed wire broke between CN305 pin 2, 1306 pin 58. 2) Printed wire broke between CN305 pin 1, 1306 pin 59. 3) C366 or C367 is short. 4) R370 or R371 is short or open. 4) R372 or R373 is open. ACER A211H/A221HQ Go to contents page...
  • Page 54 ACER A211H/A221HQ Go to contents page 5.3.6 Abnormal plug and play operation for VGA: Confirm the host computer supplies DDC/CI mode. Check the voltage on CN302 pin 9, that is DC 5 V. Check the voltage on I303 pin 8, that is DC 5 V.
  • Page 55 3) R327 or C325 is short. Failure Point VGA Video cable is failure. Failure Point 1) Printed wire broke between CN302 pin 14 and I306 pin 17. 2) R325 is open. 3) R326 or C324 is short. ACER A211H/A221HQ Go to contents page...
  • Page 56 ACER A211H/A221HQ Go to contents page 5.3.8 Checking the resolution change IC movement: Check +3.3V supply on I306 pin 51, Check +1.2V supply on I306 pin 30, 53, 15. Check X301 14.318MHz clock input to I306 pin 1 and 2 Check I306 pin 54 RESET signal is low level at normal operation.
  • Page 57 Printed wire broke between CN301 pin 9, 10, 11 and I301 pin3. Failure Point I301 is failure or C303 is short. Failure Point D301 is failure or Q302 is failure or C307 is short. ACER A211H/A221HQ Go to contents page...
  • Page 58 ACER A211H/A221HQ Go to contents page 5.4 Power board troubleshooting(1A1D1H/1A1D/1A): 5.4.1 No Power (1A1D1H/1A1D/1A): Check output voltage +5V, +22V are right or not Check power switch is turn on or not Check power cord (P802), signal cable (P302), P802, P103, P104 are connected right or not...
  • Page 59 Check CCFL and repair them. Lock Check R125, R126, R106, R107, D109, D118, C119 I101 and repair Check R115, R110, I101 and repair Check R137, R118, R119, R117, ACER A211H/A221HQ Go to contents page P103, P104 tightly them them Repair I101...
  • Page 60 ACER A211H/A221HQ Go to contents page Notes: (1) If the firmware version is shown as same as the current F/W version which you got from Wistron engineers, you must exit the ISP programming process. (2) The ISP programming is only required when the firmware version is previous version compared to the current version.
  • Page 61 S2. Press “Menu” button again to enter factory mode, and you will see the firmware version. Note: Please pay attention: Don’t change any parameter which is measured by precise machine before shipping out. Once you ACER A211H/A221HQ Go to contents page Menu Power...

  • Page 62: Writing Edid Procedure

    ACER A211H/A221HQ Go to contents page Notice Notes: Please be noted that 'INI.INI' file must be copied into 'C:\WINDOWS' root directory before running EDID program. Moreover, please be aware of not changing any parameters in the 'INI.INI' file. Especially, the upload key must keep '0' to disable file uploading process in field.
  • Page 63 P226HQ, otherwise select NO226HQ. S3~S5. The process of writing EDID for HDMI is same as the process of writing EDID for VGA/DVI. ACER A211H/A221HQ Go to contents page cedid...
  • Page 64 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 140ohm 7.5mA 137ohm 8.0mA SOP-18 PCB No. L9382-SF ACER A211H/A221HQ Go to contents page...
  • Page 65 S603 SW-TACT-173-GP SW-TACT-173-GP Menu S604 S604 SW-TACT-173-GP SW-TACT-173-GP S605 S605 Left SW-TACT-173-GP SW-TACT-173-GP S606 S606 Right SW-TACT-173-GP SW-TACT-173-GP AUTO MENU LEFT < P601 S602 S603 S604 S605 D601 RIGHT > S606 PCB No. L0202-1 ACER A211H/A221HQ Go to contents page...

  • Page 66: Block Diagram

    I309 Fl ash PM25LV020 P306 Scaler X301 RTD2482D-GR V.E. XTAL Board 27MHZ I302 P308 TMDS 24LC02B RX0~2+/-, RXC+/- D_SUB_SCL R,G,B,Hs,Vs D_SUB_SDA Power Board DVI-D DSUB Board P303 P302 Digital Analog Video Video Input Input ACER A211H/A221HQ Go to contents page...
  • Page 67 AO3419 SM-FET SM-FET FB314 FB314 PBY201209T-170Y-S PBY201209T-170Y-S VLCD BEAD0805 BEAD0805 C377 C377 C376 C376 0.1uF_16V 0.1uF_16V 0.1uF_16V 0.1uF_16V CM0402 CM0402 CM0402 CM0402 P3P3V P1P2V P1P2V C311 C311 0.1uF_16V 0.1uF_16V CM0402 CM0402 PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 68 SOIC-8P 47pF_25V 47pF_25V 47pF_25V 47pF_25V CM0402 CM0402 CM0402 CM0402 DDC_SCL_VGA DDC_SCL_VGA DDC_SDA_VGA DDC_SDA_VGA RTD_R+ RTD_R- RTD_G+ RTD_G- R476 R476 RTD_B+ NC/1M_5% NC/1M_5% R0402 R0402 RTD_B- VGA_DETn RTD_H RTD_V DDC_WP DDC_SCL_VGA DDC_SDA_VGA PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 69 DVI_DETn RX0N RX0P RXCP RXCN HDCP_HPDn HDCP_HPDn DVI_RXC- R461 R461 NC/10K_5% NC/10K_5% R0402 R0402 I/O 4 I/O 3 C379 C379 0.1uF_16V 0.1uF_16V CM0402 CM0402 DVI_RXC+ R467 R467 NC/10K_5% NC/10K_5% R0402 R0402 PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 70 10K_5% R0402 R0402 D345 D345 I/O 1 I/O 4 I/O 2 I/O 3 IP4223-CZ6 IP4223-CZ6 C382 C382 SOT23-6 SOT23-6 0.1uF_16V 0.1uF_16V CM0402 CM0402 HDMI1_D2+ HDMI1_CK+ R475 R475 10K_5% 10K_5% R0402 R0402 PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 71 PVCC_3V3 PVCC_3V3 R390 R390 R392 R392 4K7_5% 4K7_5% 4K7_5% 4K7_5% R0402 R0402 R0402 R0402 DET_HDMI DVI_DETn VGA_DETn PVCC_3V3 P308 P308 Audi o output PC-Audi o i nput A2001WV2_07_JWT A2001WV2_07_JWT CN20-7 CN20-7 PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 72 DF100-6P DF100-6P MMSZ5232BS MMSZ5232BS MMSZ5232BS MMSZ5232BS 47pF_25V 47pF_25V 47pF_25V 47pF_25V SOD323 SOD323 SOD323 SOD323 CM0402 CM0402 CM0402 CM0402 FOR H233 OSD KEY 6PIN LED_1 LED_1 LED_2 LED_2 KEY2_SCL KEY2_SCL KEY1_SDA KEY1_SDA PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 73 +5V Vcc LVDS 1310 1311 Regulator 5V-3.3V PM25LV020 5V-1.8V Scaler 1309 RTD2281 EEPROM M24LC16 XTAL 14.318MHz TMDS EEPROM EEPROM M24C02 M24C02 DDC_SCL DDC_SCL DDC_SDA DDC_SDA CN303 DVI-D D-SUB CN302 Analog Video Video Input Input ACER A211H/A221HQ Go to contents page...
  • Page 74 R390 R390 100KR2J-1-GP 100KR2J-1-GP GEN246R158-8-F-A GEN246R158-8-F-A M301 M301 P3P3V L313 L313 (NC)PBY201209T-300Y-N-GP (NC)PBY201209T-300Y-N-GP D313 D313 S1A-F-GP S1A-F-GP P1P2V P1P2V C310 C310 SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP VLCD L302 L302 VLCD C314 C314 SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 75 (NC)SCD047U16V2KX-1-GP R398 R398 (NC)1MR2J-1-GP (NC)1MR2J-1-GP C320 C320 SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C322 C322 GNDG SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C323 C323 SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C325 C325 GNDB SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP VGA_CABLE_DET 5 HSYNC VSYNC C331 C331 SC12P50V2JN-3GP SC12P50V2JN-3GP PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 76 C379 C379 C380 C380 R348 R348 100R2J-2-GP 100R2J-2-GP C343 C343 SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP I305 I305 M24C02-WMN6TP-GP-U M24C02-WMN6TP-GP-U DDC_WPn DDC_SCL_DVI 5 DDC_SDA_DVI 5 DVI_HOT_PLUG 5 DVI_CABLE_DET 5 PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 77 KEY_ADC2 KEY_POWER KEY_POWER AUDIO_EN V33P POWER_KEY_EN MUTE USB_EN USB_DET ATTN ATTN AMBER GREEN R385 R385 (NC)100KR2J-1-GP (NC)100KR2J-1-GP P3P3V WP_PRO R387 R387 (NC)100KR2J-1-GP (NC)100KR2J-1-GP R389 R389 R386 R386 (NC)100KR2J-1-GP (NC)100KR2J-1-GP (NC)100KR2J-1-GP (NC)100KR2J-1-GP PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 78 R400 R400 (NC)0R2J-2-GP (NC)0R2J-2-GP (NC)PTWO-CON6-11-GP-U (NC)PTWO-CON6-11-GP-U 2,3,4,5 USB_EN USB_DET P3P3V KEY2 KEY1 GREEN AMBER POWER Tact Touch KEY2 KEY1 AMBER ATTN POWER POWER_KEY_EN GREEN CN307 CN307 USB_EN USB_DET +3.3V JWT-CON7-4-GP JWT-CON7-4-GP PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 79 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 LCD Panel CN304 +5V Vcc LVDS 1306 1304 Regulator 5V-3.3V PM25LV020 5V-1.8V Scaler 1305 RTD2280L EEPROM M24LC16 XTAL 14.318MHz EEPROM M24C02 DDC_SCL DDC_SDA D-SUB CN302 Analog Video Input ACER A211H/A221HQ Go to contents page...
  • Page 80 10KR2J-3-GP 10KR2J-3-GP 100KR2J-1-GP 100KR2J-1-GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP R307 R307 R309 R309 Q303 Q303 PANELVCC_EN MMBT3904-7-F-GP MMBT3904-7-F-GP 4K7R2J-2-GP 4K7R2J-2-GP R338 R338 100KR2J-1-GP 100KR2J-1-GP GEN246R158-8-F-A GEN246R158-8-F-A M301 M301 PCB No. P1P2V VLCD L9142-1M ACER A211H/A221HQ Go to contents page...
  • Page 81 (NC)SCD047U16V2KX-1-GP (NC)SCD047U16V2KX-1-GP R404 R404 (NC)1MR2J-1-GP (NC)1MR2J-1-GP C340 C340 SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C342 C342 GNDG SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C339 C339 SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C341 C341 GNDB SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP VGA_DETn HSYNC VSYNC C324 C324 SC22P50V2JN-4GP SC22P50V2JN-4GP PCB No. L9142-1M ACER A211H/A221HQ Go to contents page...
  • Page 82 KEY_ADC1 R341 R341 4K7R2J-2-GP 4K7R2J-2-GP KEY_ADC2 R353 R353 4K7R2J-2-GP 4K7R2J-2-GP STANDBY_ATTN R354 R354 (NC)4K7R2J-2-GP (NC)4K7R2J-2-GP I305 I305 WP_PRO W C# 100R2J-2-GP 100R2J-2-GP 100R2J-2-GP 100R2J-2-GP P3P3V C390 C390 M24C16-WMN6-1GP M24C16-WMN6-1GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP PCB No. L9142-1M ACER A211H/A221HQ Go to contents page...
  • Page 83 R350 0R2J-2-GP 0R2J-2-GP P3P3V L311 L311 (NC)PBY160808T-301Y-N-GP (NC)PBY160808T-301Y-N-GP CN305 CN305 KEY2 KEY1 GREEN AMBER POWER JWT-CON7-4-GP JWT-CON7-4-GP (NC)PTWO-CON6-11-GP-U (NC)PTWO-CON6-11-GP-U Tact Touch KEY2 KEY1 AMBER ATTN POWER EN/Power key GREEN CN307 CN307 PCB No. L9142-1M ACER A211H/A221HQ Go to contents page...
  • Page 84 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 BOTTOM SICK PCB No. L9382-SF ACER A211H/A221HQ Go to contents page...
  • Page 85 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 BOTTOM SICK PCB No. L0202-1 ACER A211H/A221HQ Go to contents page...
  • Page 86 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 BOTTOM SICK PCB No. L9141-1 ACER A211H/A221HQ Go to contents page...
  • Page 87 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 BOTTOM SICK PCB No. L9137-1M ACER A211H/A221HQ Go to contents page...
  • Page 88 1　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 2　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 3　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 4　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 5　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 6　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 7　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 8　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 9　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 10　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 11　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 13　 　 　 　 　 　 　 BOTTOM SICK PCB No. L9142-1M ACER A211H/A221HQ Go to contents page...

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