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Acer AL2223WD Service Manual

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Acer AL2223W
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
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  • Page 1 Acer AL2223W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 -...
  • Page 2 “as is ”. Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, of its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.
  • Page 3 Conventions The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages that appear on screen Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions.
  • Page 4 DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and Service of customer machines.
  • Page 5 WARNING: (FOR FCC CERTIFIED MODELS) NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 6 PRECAUTIONS Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.

  • Page 7: Special Notes On Lcd Monitors

    SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears.

  • Page 8: Table Of Contents

    Table of contents Chapter 1 MONITOR FEATURE … … … … … … … … … … … … … … … … … … … … … … .9 Chapter 2 OPERATING INSTRUTION … … … … … … … … … … … … … … … … … … … … .25 Chapter 3 Machine assembly …...

  • Page 9: Chapter 1 Monitor Feature

    Monitor Feature LCD Panel Input Display Color Maximum Dot Clock ® Max Resolution Plug & Play EPA ENERGY STAY Audio output Input Connector Input Video Signal Screen Size (Active) Power Source Environmental Considerations Weight (N.W.) Dimension Driving system TFT Color LCD Size 22"...
  • Page 10 Switch External Controls : Regulatory Compliance * Power Switch * MENU / EXIT / Volume / Volume * AUTO / ENTER * Contrast/brightness * Focus * Clock * H.Position * W.Position * Language * OSD Color temperature * OSD Position & Timeout * Auto Config * Input * Information...
  • Page 11 Timings The product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable. MODE NO. RESOLUTION 720 x 400 Dot clock(MHz) 28.321 31.469kHz H-Total ( us ) 31.78(900dots) H-Sync ( us ) 3.813(108dots) H-B-P ( us ) 1.907(54dots) H-Active ( us ) 25.42(720dots)
  • Page 12 MODE NO. RESOLUTION 640 x 480 Dot clock(MHz) 31.5 37.500kHz H-Total ( us ) 26.667(840 dots) H-Sync ( us ) 2.032 (64 dots) H-B-P ( us ) 3.810 (120 dots) H-Active ( us ) 20.317 (640 dots) H-F-P ( us ) 0.508 (16 dots) 75Hz (75) V-Total (ms )
  • Page 13 MODE NO. RESOLUTION 800 x 600 Dot clock(MHz) 48.077kHz H-Total ( us ) 20.80 (1040dots) H-Sync ( us ) 2.400 ( 120 dots) H-B-P ( us ) 1.280 (64 dots) H-Active ( us ) 16.00 (800 dots) H-F-P ( us ) 1.120 (56 dots) 72Hz (72.188) V-Total (ms )
  • Page 14 MODE NO. RESOLUTION 1024 x 768 Dot clock(MHz) 78.75 60.02kHz H-Total ( us ) 16.66(1312 dots) H-Sync ( us ) 1.22 (96 dots) H-B-P ( us ) 2.23 (176 dots) H-Active ( us ) 13.00 (1024 dots) H-F-P ( us ) 0.20 (16 dots) 75.03Hz V-Total (ms )
  • Page 15 MODE NO. RESOLUTION 1280 x 960 Dot clock(MHz) 60.000 KHz H-Total ( us ) 16.667 (1800dots) H-Sync ( us ) 1.037 ( 112 dots) H-B-P ( us ) 2.889 (312 dots) H-Active ( us ) 11.852 (1280 dots) H-F-P ( us ) 0.889 (96 dots) 60.00Hz V-Total (ms )
  • Page 16 MODE NO. RESOLUTION 1280 x 768 Dot clock(MHz) 102.25 60.289KHz H-Total ( us ) 16.587 (1696dots) H-Sync ( us ) 1.252 ( 128 dots) H-B-P ( us ) 2.034 (208 dots) H-Active ( us ) 12.518 (1280 dots) H-F-P ( us ) 0.782 (80 dots) 74.893Hz V-Total (ms )
  • Page 17 MODE NO. RESOLUTION 1680 x 1050 Dot clock(MHz) 146.25 65.29 KHz H-Total ( us ) 15.316 (2240 dots) H-Sync ( us ) 1.203 ( 176 dots) H-B-P ( us ) 1.915 (280 dots) H-Active ( us ) 11.487 (1680 dots) H-F-P ( us ) 0.711 (104 dots) 59.954 Hz...

  • Page 18: Monitor Block Diagram

    Monitor Block Diagram GNDR PC5V GNDG GNDB VSYNC PC5V HSYNC CLK+ CLK- DDCA_SDA DDCA_SCL DET_VGA DDCD_SDA DDCD_SCL DET_DVI HPD_CTRL 3.INPUT PC5V PC5V VCC12 VCTRL VCC12 on_BACKLIGHT VCC3.3 VCC1.8 Adj_BACKLIGHT VCC3.3 VCC1.8 2.POWER LVA0P GNDR LVA0M LVA1P GNDG LVA1M LVA2P GNDB LVA2M LVACKP VSYNC...
  • Page 19 PCB CONDUCTOR VIEW Main Board - 19 -...
  • Page 20 - 20 -...
  • Page 21 Button Board - 21 -...
  • Page 22 - 22 -...
  • Page 23 Power Board - 23-...
  • Page 24 - 24 -...

  • Page 25: Chapter 2 Operating Instrution

    OPERATING INSTRUCTIONS Front Panel Definition This Section defines the front panel User Interface for Led Indictor and Key function. Key Definition: There are five keys defined in this system and described bellows. * Adjusting display settings External Controls ○ POWER ○...

  • Page 26: Osd Menu

    OSD Menu Picture Contrast: This adjusts dark and light shades of color relative to each other to achieve a comfortable contrast. Brightness: This adjusts the brightness of the picture on the screen. Color temp. : There are three ways of adjusting color: Warm (Reddish white) Cool (Bluish white) User : You can adjust the colors red, green and blue to the intensity...
  • Page 27 Option Auto Config. : System runs auto -configuration. nformation: This shows brief information on the screen. Analog Input: Setting Language: Select the OSD menu language from English, French, German, Italian, Spanish, Simplified Chinese, Traditional Chinese, Japanese and Russian. OSD H. Position OSD V.

  • Page 28: Auto Color

    LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color Blue Amber Dark R,G,B GAIN: Adjust current RGB Driver value. SPREAD : Adjust chip set internal frequency spread effect for EMI testing . Factory 2 Adjustment: This page only visible in factory mode AUTO BURN：...

  • Page 29: Plug And Play

    LOGO : When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. HOW TO OPTIMIZE THE DOS-MODE Plug and play Plug & play DDC2B feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
  • Page 30 USING THE RIGHT POWER CORD The accessory power cord for the Northern American region is the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volt AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No.

  • Page 31: Chapter 3 Machine Assembly

    Machine assembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and trouble shooting NOTE : 1. The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding to avoid mismatch when putting back the components. 2.
  • Page 32 Real View : Top View : - 32 -...
  • Page 33 Side View : ( unit : mm ) - 33 -...
  • Page 34 Assembly process Picture Description 1. Get the inverter board and inverter cable 2. Insert inverter cable to inverter board. Assembly inverter board and shielding cover Insert keyboard cable on the main board Insert button cable on the main board. Insert LCD cable on the main board. - 30 -...
  • Page 35 Assembly process Picture Description 1.[GET SPONGE CUSHION AND PUT IT IN THE MIDDLE OF CONVEYER] 2.[GET PCB SHIELD AND PUT IT IN THE MIDDLE OF CONVEYER] 1.[GET M/B AND LCD CABLE,THEN INSERT LCD CABLE IN M/B CONNECTOR] 2.[GET BUTTON CABLE,THEN INSERT IT IN M/B CONNECTOR] 3.[ PUT M/B IN THE CONVEYER] 1.[GET POWER/B AND INSERT JUMPER IN...
  • Page 36 1.[FASTEN 1*PCS SCREW(M 4*8-B) IN P/B] 2.[FASTEN 2*PCS SCREW(M 3*6-T) IN P/B] 1.[FETCH POWER/B MYLAR PUT IT ON SHIELD AND FASTEN 1*PCS SCREW (M 3*6-T]. 2.[FASTEN 1*PCS SCREW(M 3*6-T) IN M/B] 3.[GET THE SHIELD AT FRONTAGE OF THE CONVEYER] 1.[GET THE SHIELD AT FRONTAGE OF THE CONVEYER] 2.[GET PANEL AND PUT IT ON THE CONVEYER, THEN TEAR OFF THE...
  • Page 37 1.[FETCH TRAVEL CARD, TEAR OFF 1*PCS S/N FROM TRAVEL CARD AND PASTE IT ON THE PANEL BACK,THEN SCAN S/N AND PANEL CODE] 2.[GET LEFT BKT AND LOCK 2*PCS SCREW(M3*5-I) TO FASTEN IT AND PANEL] 1.[GET BEZEL AND CHECK ITS APPEARANCE] 2.[ASSEMBLE BEZEL ON PANEL﹐THEN PASTE TYPE TO FASTEN PROTECTIVE FILM ON THE BEZEL]...
  • Page 38 1.[SCAN S/N AND M/B CODE] 2.[FASTEN BKT AND BEZEL IN THE LEFT SIDE WITH SCREW 3*PCS ] 3.[TURN LCD] 1.[FETCH BUTTON/B AND INSERT IT INTO BEZEL] 2.[STICK 1*PCS RUBBER AT THE APPOINTED PLACE] 1.[GET SHIELD ON THE BKT R/L] 2.[INSERT LCD CABLE INTO PANEL CONNECTOR] 3.[STICK 1*PCS YELLOW TAPE TO FASTEN LCD CABLE]...
  • Page 39 1.[PUT THE SPEAKER AT THE APPOINTED PLACE] 2.[INSERT NETHER CCFT CABLE IN INVERTER CABLE] 1.[FASTEN 2*PCS IO-NUT IN THE VGA JOINT] 2.[FASTEN 2*PCS IO-NUT IN THE MB JOINT] 1.[LOCK SCREW (F2.5*8.0-P)*4pcs TO FASTEN SPEAKER] 2.[LOCK 4*PCS SCREW(M3*6-T) TO FASTEN SPEAKER] 1.[STICK AL FOIL AT THE APPOINTED PLACE TO FASTEN THE CABLE] 2.[STICK 1*PCS AL FOIL AT THE APPOINTED...
  • Page 40 1.[GET LCD COVER AND INSPECT ITS APPEARANCE] 2.[ASSEMBLE LCD COVER TO BEZEL] 3.[STICK 1*PCS TAPE AT THE APPOINTED PLACE] 1.[FETCH TRAVEL CARD, TEAR OFF 1*PCS APPOINTED S/N FROM TRAVEL CARD AND PASTE IT ON THE COVER] 2.[LOCK 2*PCS SCREW (F3*8-B) TO FASTEN BEZEL AND LCD COVER] 3.[GET STAND NECK AND INSPECT IF IT IS DIRTY AND SCRATCHED,THEN PUT IT IN...
  • Page 41 1.[INSERT DVI CABLE IN DVI CONNECTOR] 2.[INSERT POWER CABLE IN POWER CONNECTOR] 3.[INSERT POWER CABLE IN POWER CONNECTOR] 1.[AT FIRST CHECK IF 2*PCS SCREW IN THE COVER IS LOST]. 2.[LOCK 4*PCS SCREW (M4*10-B) TO FASTEN STAND NECK]. 1.[INSERT VGA CABLE IN VGA CONNECTOR] 2.[GET BASE FIXTURE AND ASSEMBLE IT TO STAND NECK] 1.[LET MONITOR STAND]...

  • Page 42: Chapter 4 Troble Shooting

    TROUBLE SHOOTING This chapter provides trouble shooting information forAL1932 Trouble Shooting 1. No Power Change Power Board Check Short Of Main Board Change Q3,D1,U1,D2 Change X1 Change U5 or Change U5 RUN Software Check Bottom Board No Power Check CN1 +12V and +5V Check D1=1.8V U1 out=3.3V...
  • Page 43 2. Missing Color Change Cable Change R1,R5,R10, Change U4 or CN2 Cable or Panel Adjustment R/G/B Color Missing Color Check VGA Cable Check R27,R29,R31 Check CN2 LVDS Signal Check OSD R/G/B Gain - 43 - Change Panel...
  • Page 44 3. Always show “NO SIGNEL” Change Cable “NO SIGNEL” Check VGA Cable VGA Check C23,C24,R44,R4 Change R42,R43,FB1,R 44,R45 C23,C24 - 44 - Change U4...

  • Page 45: Chapter 5 Connector Information

    Connector Information Phonejack stereo PIN1. AC power cord PIN2. Audio cable PIN3. Audio : Line -in receptacle PHONEJACK STEREO Video signal connector 15P Mini D-Sub connector x 1 MNEMO : CEE22 typed connector DB15HD SIGNAL Red Video Green Video Blue Video None Ground(DDC return) Red GND...
  • Page 46 Proprietary connecting of DVI box The 44 pin of proprietary DVI box is defined as follows: RX2- RX2+ RX1- RX1+ RX0- RX0+ RXC- RXC+ LLC VPC KEY1 KEY2 SCART_FUNC KEY3 SCART RGB_CON SCL5V nYCOEN SDA5V NVDSW_SEL HSCL REST HSDA DVI_ DETECT CORD_ RESET CORD_DETECT ADO_L...

  • Page 47: Chapter 6 Fru List

    DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines.
  • Page 49 Part Nuber Explode view Item Part Number Description EAWBTB01017 LCD BEZEL WBTB MM30030IBJ4 SCREW M3*3-I-NI AAM220EW000 LCD(TFT)22''M220EW01 V0 FOR ACER CON GP FAWBTB02013 LCD BKT-L WBTB FCL7TA01018 SHIELDING MYLAR L7TA FCM7T004014 AL FOIL M7T FAWBTB01017 SHIELDING EAWBTB02013 LCD COVER FAL0TB08016 HINGE ASSY L0TB 10 EBL9TB02013 HINGE COVER L9TB 11 MM40100B244 SCREW M4.0*10-B BLACK (NYLOK)
  • Page 50 Part list Above picture show th description of the following component Item Picture - 50 - Description Part No back cover 25WBTBLC006 bezel 34WBTBLB009 base 38L0TBBS005 stand 26L0TBSA001...

  • Page 51: Chapter 7 Schematic Diagram

    GNDR PC5V GNDG GNDB VSYNC PC5V HSYNC CLK+ CLK- DDCA_SDA DDCA_SCL DET_VGA DDCD_SDA DDCD_SCL DET_DVI HPD_CTRL 3.INPUT PC5V PC5V VCC12 VCTRL VCC12 on_BACKLIGHT VCC3.3 VCC1.8 Adj_BACKLIGHT VCC3.3 VCC1.8 2.POWER SCHEMATIC DIAGRAM Main Board Circuit LVA0P GNDR LVA0M LVA1P GNDG LVA1M LVA2P GNDB LVA2M...
  • Page 52 CONN 4x2-R VCC12 0/1206 VCC3.3 10K/6 MMST3906 VCC3.3 10K/6 0/6 5% 1uF/8/NC PC5V PC5V 3,4,5 BAT54C-GS08 SSM12LL CX201209813/8 VCC12 VCC3.3 10K/6 1K/6 on_BACKLIGHT 4 0.1uF/6/NC 1N4148 1K/6 100/6 2N3904 2.2K/6 Adj_BACKLIGHT 4 U3-A1 VOUT ADJ/GND LT1117/TO252/NC VCC3.3 VOUT ADJ/GND LT1084/TO263 200/6 1% 330/6 1% VCTRL...
  • Page 53 PC5V BAV99/NC BAV99/NC C20 0.1uF/6/NC C21 0.1uF/6/NC DAT_DDC DVI_SCL DVI_SDA DAT2- DVI5V RX2- DAT2+ RX2+ RX4- RX4+ DVI_SCL DVI_SDA DAT1- DAT0+ RX1- DAT1+ DAT0- RX1+ DAT1+ DVI5V DAT1- RX3- DAT2+ RX3+ DVI5V DAT2- DCLK+ DCLK- DAT0- RX0- DAT0+ RX0+ RX5- RX5+ DCLK+ RXC+...
  • Page 54 AVDD_33 AVDD_18 VDDC_18 VCC3.3 100/6/NC RIN0P 100/6/NC GNDR RIN0M GIN0P GNDG GIN0M SOGIN0 JWT-A2001WV2-04/NC BIN0P GNDB BIN0M HSYNC HSYNC0 VSYNC VSYNC0 DDCA_SDA DDCA_SDA/RS232_TX DDCA_SCL DDCA_SCL/RS232_RX VCC3.3 RX2P RX2N RX1P RX1N RX0P RX0N 3.3K/6 3.3K/6 CLK+ RXCKP CLK- RXCKN DDCD_SDA DDCD_SDA DDCD_SCL DDCD_SCL 390/6 1%...
  • Page 55 VCC12 VCC12 2,6 2,3,4 CX201209813/8 2200PF/6 2200P/6 10K/6 SI9435 2.2K/6 DTC144EUA on_PANEL 4 LVB0M RXO0- LVB0M LVB1M RXO1- LVB1M LVB2M RXO2- LVB2M LVBCKM RXOC- LVBCKM LVB3M RXO3- LVB3M LVA0M RXE0- LVA0M LVA1M RXE1- LVA1M LVA2M RXE2- LVA2M LVACKM RXEC- LVACKM LVA3M RXE3- LVA3M...
  • Page 56 +12V_A 1K/6 10K/6 2K/6 VOLUME 2N3904 AGND AUDIO-IN AL3 CX201209813/8 L_LINE Z0415 R_LINE Z0416 ZD005D100 AL4 CX201209813/8 VCC3.3 +12V_A AGND AR16 MUTE VCC3.3 +12V_A VCC3.3 AR13 AR14 10K/6 10K/6 AR17 1K/6 STBY AGND +12V_A VCC12 10K/6 VOLU CX201209813/8 +12V_A CX201209813/8 100/6 LIN_PC 1uF/8...

  • Page 57: Key Board

    MENU_O SEL_O PWR_O RIGHT_O LEFT_O AMBER_O GREEN_O JST 8Pin PH2.0mm H TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P LD1 LED Dual AMBER GREEN LD2 LED Dual MENU AUTO POWER RIGHT LEFT PROJECT NAME: L7TB / L9TB /L0TB / WDTB/WBTB Title Key Board...
  • Page 58 ON/OFF IC_VCC IC_VCC DBRT ENSYNC ABRT OUTL DBRT VCCL OUTR COMP VCCR JP10 IC_VCC TILE: FSP055-2PI02(INVERTER) 3BS0137110GP P/N: Alex_Lu DESIGNER: PCB File: 55-2PI2A0.PCB File: \\Jean\OPEN FRAME\FSP055\55-2PI02( size: A3 rev: 1.00 Date: 24-May-2006 Sheet 達裕 )\55-2PI2A0\55-2PI2A0.ddb - Documents\55-2PI2A0(I).SCH 線路圖 表單編號 :7000P-0106...
  • Page 59 F101 CN100 TH101 SW101 LF101 R101 R102 CY102 CY104 R123 R124 Ilimit C123 ZD121 LF102 BD101 R112 T101 C114 R113 D110 R122 R121 R120 U101 Drain D120 L120 PC201B C120 C260 R260 C263 C261 9.10 R262 D260 D240 L240 C242 R240 C240 R230...

  • Page 60: Chapter 8 Power Board Information

    Power Board Information Panel P/N AAM220EW000 P/B P/N AS05B3E0409 Description LCD(TFT)22" M220EW01 V0 FOR ACER CON GP Description ADP/INV,FSP055-2PI02(90-264V,6.~7.5MA)GP - 60 - Chapter 8 Current Type Value 7.0 mA When the lamp current value is 7.0mA, the jumper should be done as the...

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