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Acer AL2032W Service Manual

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See also: User Manual
Acer AL2032W
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
- 1 -

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Summary of Contents for Acer AL2032W

  • Page 1 Acer AL2032W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ - 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 …………………………………………………….15 Chapter 3 Machine assembly ……………………………………………………………21 Chapter 4 TROBLE SHOOTING ………………………………………………………….27 Chapter 5 CONNECTOR INFORMATION ……………………………………………….29 Chapter 6 FRU LIST ………………………………………………………………………..30 Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………31 - 8 -...

  • 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 20.1”...
  • Page 10 Switch Function External Controls : Regulatory Compliance Timeings The product has 29 memory modes in total. 19 modes are preset and 10 modes are user definable. MODE NO. RESOLUTION 720 x 400 Dot clock(MHz) 31.469kHz H-Total ( us ) 31.78(900dots) H-Sync ( us ) 3.813(108dots) H-B-P ( us )
  • Page 11 70Hz(70.087) V-Total (ms ) 14.27(449 lines) V-Sync ( ms ) 0.064(2 lines) V-B-P (ms ) 1.112(35 lines) V-Active ( ms ) 12.71(400 lines) V-F-P ( ms ) 0.384(12 lines) SYNC. H/V POLARITY SEP . SYNC MODE NO. RESOLUTION 640 x 480 Dot clock(MHz) 31.5 37.500kHz...
  • Page 12 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 ) 13.85 (666 lines) V-Sync ( ms ) 0.125 (6 lines)
  • Page 13 SYNC. H/V POLARITY SEP . SYNC 17" 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)

  • Page 14: Monitor Block Diagram

    Monitor Block Diagram +3.3V _ I/O _M A LIB U +1.8V _CO RE D IG ITA L D D C 24A A 02 (U 12) SD A /SCL D V I IN PU T RX 2 , RX 1, RX 0 , RX C ( CN 8 ) A N A LO G D D C 24A A 02 (U 10)
  • Page 15 PCB CONDUCTOR VIEW Main Board - 15 -...
  • Page 16 Button Board - 16 -...

  • Page 17: Operating Instructions

    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 18: Osd Menu

    OSD Menu Picture Brightness: This adjusts the brightness of the picture on the screen. Contrast: This adjusts dark and light shades of color relative to each other to achieve a comfortable contrast. 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 19: Led Definition

    LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color Blue Amber Dark Option Auto Config. : System runs auto-configuration. Reset: Recall to default settings. Information: This shows brief information on the screen. Setting Language: Select the OSD menu language from...

  • Page 20: 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 21 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 22: 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 23 Real View : Top View : - 23 -...
  • Page 24 Side View : ( unit : mm ) Assembly process Picture Description 1. Get the panel and put it on the table carefully. 1. Fix left and right bracket (BKT) on the panel. - 24 -...
  • Page 25 1. Get bezel and put it on the table 2. Assemble panel into bezel 1. Lock screw * 3 pcs to fasten bezel and left side bracket (BKT) 2. Lock screw * 3 pcs to fasten bezel and right side bracket (BKT). 1.
  • Page 26 1. Get inverter and insert cable 2. Insert button cable in main board connector 1. Lock 4*pcs screw to fasten m/b and PCB BKT First to lock 4*pcs screw to fasten Inverter board on the PCB BKT 2. Get m/b and insert speaker cable, then assemble it on the 1.
  • Page 27 Lock screw*2pcs to fasten panel hold insert LCD cable in m/b connector 1. Assemble shielding and pcb BKT 2. Lock 7pcs screw to fasten shielding 3. Insert ccft cable L/R of into inverter/b connector 1. Stick al foil *2pcs on ccft connector of pcb shielding 1.
  • Page 28 1. Insert button/b cable in button/b connector 1. Assembly back cover and bezel 2. Lock screw * 6 pcs to fasten and back cover 1. Lock screw*2 pcs to fasten bezel and PCB shielding. 2. Assembly DVI box, if necessary. 1.

  • Page 29: Trouble Shooting

    TROUBLE SHOOTING This chapter provides trouble shooting information forAL2032 1. No Power No Power Check Adaptor Power Output =18V Check Scalar Module Output L4 =5V? U4 #2 = 3.3V ? L 13 = 1.8V ? OKKK Check Power Button From Scalar/B(CN5) to Button/B(CN1) - 29 - Chapter 4...
  • Page 30 No Characters , Missing one color Change Inverter Board Check Inverter From Scaler board OK ? Check or Change Cable Or Panel Change VGA Cable - 30 - NoCharacters Missing one color Check CN4 12Vdc Output Check L4 5Vdc Output Check U6(pin2) Check or Change 1.8Vdc Output...
  • Page 31 3. No audio Check Input source Or Change CN9 Change U12 or U9 No Audio Check Input Signal CN9 OK ? Check CN6 to Speaker OK ? Check U12(Pin9) & U9 OK ? Check U9Pin1(Mute) & Q10 & U9 OK ? - 31 - Change Speaker o r CN6(Cable)

  • Page 32: 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 33 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 34: 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 35 AL2032W Exploded Diagram Chapter 6...

  • Page 36: Chapter 7 Schematic Diagram

    SCHEMATIC DIAGRAM Main Board Circuit +1.8V_CORE 8 2 2 7 2 2 +2.5V_DDR 7 2 2 5 2 2 +3.3V_I/O_MALIBU R170 0/6/NC R171 0/6/NC RX0+ RX0- RX1+ RX1- RX2+ RX2- +1.8V_DVI +3.3V_DVI RXC+ RXC- +3.3V_DVI 249R/6 1% BLUE- BLUE+ R131 0/6 GREEN- R132 0/6 GREEN+...
  • Page 37 12V_A CX000800000/1206 lef t_in R109 CX000800000/1206 R110 ZD005D100 CX000800000/1206 AGND AGND AGND AGND +12V AGND 10K/6 AGND 4K7/6 MUTE MUTE AGND VOLUME VOLUME CX000800000/1206 AGND 2Y 1 2Y 0 ADO_L ADO_L 3Y 1 1Y 1 C201 1u/8 LIN_L C202 1u/8 3Y 0 1Y 0 74HCT4053...
  • Page 38 VGA_SCL VGA_SDA R101 100R/6 VGASCL VGA_5V R102 100R/6 VGASDA DAN202U DB15 HD 0.1uF/6 10K/6 10K/6 24C02 5.6V/NC ANALOG DDC 5.6V/NC MTH276D126 VGA_5V 20R/6 1% A-BLUE 20R/6 1% A-GREEN 20R6 1% 20R/6 1% A-RED A-HS A-VS Near VGA pins 22R/6 A-VS A-HS 22R/6 5 5 .
  • Page 39 +3.3V_DIG 10K/6/NC 10K/6 10K/6 /OCM_WE /OCM_WE /OCM_RE /OCM_RE /OCM_CS /ROM_CS OCMADDR[0..19] OCMADDR[0..19] OCMDATA[0..7] OCMDATA[0..7] +3.3V_DIG OCMADDR8 OCMADDR9 OCMADDR13 OCMADDR14 OCMADDR15 OCMADDR16 OCMADDR18 OCMADDR17 OCMADDR19 OCMADDR10 OCMADDR11 OCMADDR12 +18V BOOST CX000800000/1206 AIC1563 3K/6 1% 2200pF/6 1K/6 1% 20268-04 L37 CX000800000/1206 4500-07 ON/OFF CX000800000/1206 VOUT...

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