Acer AL2021 Service Manual
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Acer AL2021 Service Manual

Acer AL2021 Service Manual

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See also: User Manual
Acer AL2021
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 AL2021

  • Page 1 Acer AL2021 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 ……………………………………………………………22 Chapter 4 TROBLE SHOOTING ………………………………………………………….32 Chapter 5 CONNECTOR INFORMATION ……………………………………………….34 Chapter 6 FRU LIST ………………………………………………………………………..36 Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………40 - 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 Maximum Screen Size Power Source Environmental Considerations Weight (N.W.) Dimension Driving system TFT Color LCD Size 20.1"...
  • Page 10 * Power Switch * MENU/ENTER * >/ Volume * </ Volume Switch * Auto Adjust KEY Function * Contrast/brightness * Focus / Clock * H. / V.Position * COLOR * Language * OSD SETTING : H / V. Position & Timeout * Input Signal Selection * Information * Reset...

  • Page 11: Preset Timing

    PRESET TIMING mode Resolution IBM VGA 720 x 400 VESA 640 x 480 MAC 13” 640 x 480 VESA 640 x 480 VESA 640 x 480 VESA 800 x 600 VESA 800 x 600 VESA 800 x 600 VESA 800 x 600 MAC 16”...

  • Page 12: Monitor Block Diagram

    Monitor Block Diagram +3.3V_ I/O_MALIBU +1.8V_CORE DIGITAL DDC 24AA02 (U12) SDA/SCL DVI INPUT RX2 , RX1, RX0 , RXC ( CN8 ) ANALOG DDC 24AA02 (U10) SDA/SCL VGA INPUT RED , GREEN , BLUE , SDA/SCL ( CN7 ) MEMORY I/F OCMADDR[0..19],OCMDATA[0..7] 39VF020 ( XU1 ) MUTE...
  • Page 13 PCB CONDUCTOR VIEW Main Board - 13 -...
  • Page 14 Button Board - 14 -...

  • Page 15: 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 on/off Blue and Green : power on POWER...

  • Page 16: Osd Menu

    OSD Menu 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. Focus: This removes any horizontal distortion and makes the picture clear and sharp.
  • Page 17 LANGUAGE: Select the OSD menu language from English-English, Deutsch -German, Espanol-Spanish, 简体中文-Simplified Chinese, 繁體中文 -Traditional Chinese, Francais -French, Italiano -Italian, and 日本語-Japanese. OSD SETTING: H-Position V-Position OSD Timer This changes the position of the OSD window on the screen and staying time.

  • Page 18: Led Definition

    LED Definition The system equips one dual color (green/amber) led to indict system status and defined as bellows : LED Color Green + Blue Amber Dark Factory Mode Setting Hot Key: Auto button + Power Button Indicator : The LED of Power is Amber These pages are only visible in factory mode for service people using Exit: Exit from OSD.
  • Page 19 AUTO BURN: Use the chip set internal pattern for hot running monitor panel and inverter. AUTO COLOR: Perform Auto Balance measurement by chip set internal signal. And reference these values to initial all other color temperature detail parameters. COLOR UPDATE: Force presently R, G, B offset and gain parameters update to currently temperature memory address.

  • 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 Top View : Side View : ( unit : mm ) - 23 -...
  • Page 24 Mechanism exploded drawing - 24 -...
  • Page 25 - 25 -...
  • Page 26 Picture Description 1.Take a pcs of panel (AA0201U3001, Q’TY:1 ) 2.Stick the Al-foil on CCFT (FBL0T006015 , Q’TY:2 ) 3.Plug the MB-LCD Cable on panel (DD0L0TLC001 ,Q’TY:1) 4. Fix the MB-LCD Cable by yellow tape 1.Take a pcs of FRAME (FAL0T001012 , Q’TY:1 ) 2.
  • Page 27 1.Fix the FRAME & LCD BEZEL SUB ASSY by screws ( MM30030IBJ4 SCREW M3*3-I-NI , Q’TY:4 ) 1. Assemble the INV MODULE & ADP becoming one part . ( AS022180505 INV MODULE(TDK) , Q’TY:1 ) ( AG12046BQ01: ADP 12V 4.6A , Q’TY:1) 1.Fix the INV MODULE &...
  • Page 28 1. Fix the Scalar/B on Frame by screw (MM30040IBJ9 SCREW M3.0*4.0-I(NI) Q’TY:4) 2. Plug-in the Cable MB-LCD (Note: white point face up) 3. Plug in the Cable MB-POWER 1. Fix the PORT BKT on FRAME (FBL0T005019 PORT BKT Q’TY:1) (MM30040IBJ9 SCREW M3.0*4.0-I(NI) Q’TY:2) 1.Stick the MYLAR(POWER) on the MAIN-BD-ESD (FBL0T002010 MAIN-BD-ESD Q’TY:1)
  • Page 29 1. Fix the INVERTER ESD on FRAME by screws (MM30040IBJ9 SCREW M3.0*4.0-I(NI) Q’TY:2) 1. Fix the SPEAK on LCD BEZEL SUB ASSY (DN0QT390031 SPEAK ASSY Q’TY:1) (MF25080PJB8 SCREW F2.5*8.0-P Q’TY:4) 2. Plug the Connector into Scalar/B 1. Plug the Cable ASSY MB-BUTTON into BUTTON/B ASSY (23L0TBB0000 BUTTON/B ASSY Q’TY:1) (DD0L0TTH001 CABLE ASSY MB-BUTTON...
  • Page 30 1. Stick the MYLAR(COVER) on the FRAME ( FCL0T003017 MYLAR(COVER) Q’TY:1) 1. Fix the LCD COVER SUB ASSY by screws . (33L0TLSTN09 LCD COVER SUB ASSY Q’TY:1) ( MF30080BBJ5 SCREW F3.0*8L,B,NI) 1. Put the STAND-ARM into STAND BASE (EAL0T003015 STAND BASE Q’TY:1) (FAL0T005018 STAND-ARM Q’TY:1) 1.
  • Page 31 1. Fix the HINGE-CAP-BTM on the STAND-ARM (EBL0T003016 HINGE-CAP-BTM Q’TY:1) (MF30080BBJ5 SCREW F3.0*8L,B,NI Q’TY:1) 1. Put the HINGE-CAP-TOP on (EBL0T002010 HINGE-CAP-TOP Q’TY:1) 1. Fix the base on the LCD MODULE a)First , Screw the (MM30080BBJ2 SCREW M3.0*8,B(NI) Q’TY:2) on . b) Then fix the (ME40160PBJ0 SCREW T4.0*16.0-P(NI) Q’TY:4) 1.

  • Page 32: Chapter 4 Troble Shooting

    TROUBLE SHOOTING This chapter provides trouble shooting information forAL2010 1. No Power No Power Check Power Button From Main /B(CN1) to Button/B(CN1) Check power moduleOutput CN1 Pin 1 = on/off (Backlight) ? Pin 2 = Adj (Backlight) ? Pin 3,4 = GND ? Pin 5 = NC ? Pin 6,7 = +12V ? Check Main module Input CN1...
  • Page 33 2. No Characters , Missing one Color Check Inverter Change Inverter And CN2 OK ? Check Panel or Change Connector (30Pin) or Cable Change VGA Cable 3. No Audio Check Signal Source Or change CN9 Change Cable No Characters Missing one color Check 1.8V , 2.5V , 3.3V Output ? Check CN2 pin Output...

  • Page 34: Chapter 5 Connector Information

    Connector Information Phonejack stereo PIN1. AC power cord PIN2. Audio cable PIN3. Audio Video signal connector 15P Mini D-Sub connector x 1 : CEE22 typed connector : Line-in receptacle PhoneJack Stereo DB15HD MNEMO SIGNAL Red Video Green Video Blue Video None Ground(DDC return) Red GND...
  • Page 35 DVI-D Digital Receptacle Connector x 1 The PIN assignment of the 24 pin DVI-D connector / cable is as follows : Signal TMDS data2- (RX2-) TMDS data2+ (RX2+) TMDS data2 shield (GND) DDC clock DDC data Not connected TMDS data1- (RX1-) TMDS data1+ (RX1+) TMDS data1 shield (GND) Ground (return for +5 V and H/V sync)

  • Page 36: 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 37 INV MODULE LOT(12V, V=800V, A1A) LOT BUTTON/B ASSY LCD (TFT) FLC51UXC8V-10 20.1" (UXA) CABLE ASSY L7V MB-VGA (15/15P,REV1A) CABLE ASSY LOT MB-DVI(24P,REV2A) CABLE ASSY LOT MB-DVI(30P,REV1A) - 37 - Acer Part No. 55.L06VE.001 55.L06VE.002 55.L06VE.003 55.L06VE.004 56.L06VE.001 50.L06VE.001 50.L06VE.003 50.L06VE.004...
  • Page 38 POWER CABLE (7P,REV1A) MB-POWER (7P,REV1A) LCD BEZEL ASSY,SILVER LCD COVER ASSY, BLACK STAND ASSY,BLACK LOT STAND SUB ASSY HING CAP,BLACK LCD FRAME LOT POWER/B SHIELD MAIN/POWER BOARD ESD INVERTER BOARD ESD LOT INVERTOR ESD ASSY - 38 - CABLE ASSY LOT 50.L06VE.005 LOT LCD BEZEL SUB 60.L06VE.001...
  • Page 39 PORT BKT LOT PORT BRACKET 33.L06VE.004 (FBL0T005,REV 3A) SPEAKER ASSY LOT SPEAKER SET 23.L06VE.001 FG-QT3900 2W 2 - 39 -...

  • Page 40: Chapter 7 Schematic Diagram

    SCHEMATIC DIAGRAM WUXGA/UXGA LCD Controller Board Design 1601 RD1 CONTENTS SCHEMATIC Name 01. Contents, Revision History 02. Top Level 03. Graphic Inputs 04. gm1601 05. Frame Store 06. Memory I/F 07. Power 08.Audio Approval Position Signature REVISION HISTORY Date Author SHEET 2003/02/20 Initial Release...

  • Page 41: Top Level

    SHEET 3 03. Graphic Inputs RXC+ RXC- RX2+ RX2- RX1+ RX1- RX0+ RX0- RED+ RED- GREEN+ GREEN- BLUE+ BLUE- DVI_SCL DVI_SDA VGA_SCL VGA_SDA VGA_CAB DVI_CAB PROJECT : L0T Quanta Computer Inc. Title 02. Top Level Size Document Number Top Level Date: Friday, July 11, 2003 Sheet...

  • Page 42: Graphic Inputs

    DVI CONNECTOR RX2-IN RX2- RX2+IN RX2+ RX4- RX4+ DVISCL DVISDA RX1-IN RX1- RX1+IN RX1+ DVI_5V RX3- RX3+ R115 10K/6 HOT_PLUG RX0-IN RX0- RX0+IN RX0+ RX5- RX5+ RXC+IN RXC+ RXC-IN RXC- TP312-TP327 are the only through hole parts as GND test Probes on Board. Spread these TH TPs evenly across the Board.
  • Page 43 +1.8V_CORE +2.5V_DDR +3.3V_I/O_MALIBU DVI_SCL DVI_SDA RX0+ RX0- RX1+ RX1- RX2+ RX2- +1.8V_DVI +3.3V_DVI RXC+ RXC- 249 1% +3.3V_DVI BLUE- BLUE+ GREEN- GREEN+ RED- RED+ +3.3V_PLL +3.3V_PLL VGA_SCL VGA_SDA 22pF/6 22pF/6 XTAL TCLK 14.318MHz Route (VIN1/ADC_IN1, ADC1_RETURN) and 3.3K ACS_RSET_HD (VIN2/ADC_IN2, ADC2_RETURN) as differential tracks close to each other and ground the return track of each pair very close to the Malibu D12 ball and ground pin...

  • Page 44: Frame Store

    +2.5V_DDR FSDATA[0..31] +2.5V_DDR FSADDR[0..11] FSADDR0 FSADDR1 FSADDR2 FSADDR3 FSADDR4 FSADDR5 FSADDR6 FSADDR7 FSADDR8 A8/AP FSADDR9 FSADDR10 FSADDR11 FSBKSEL0 FSBKSEL0 FSBKSEL1 FSBKSEL1 FSCLK- FSCLK- FSCLK+ FSCLK+ FSCKE FSCKE /FSRAS /FSRAS /FSCAS /FSCAS /FSWE /FSWE FSDQS FSDQM0 FSDQM[0..3] FSDQM1 FSDQM2 FSDQM3 MT46V2M32LG-4 TQFP-100 FSVREF FSDATA0...

  • Page 45: Memory I/F

    +3.3V_DIG 10K/6 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 +3.3V_DIG Socket for a X8 Flash (64/128/256/512K) and PROMJETmemory Emulator OCMADDR18 OCMADDR17 OCMADDR16 OCMADDR15 OCMADDR14 OCMADDR13...

  • Page 46: Power

    +12V FUSE1 4501-07 4A125,SLOW BC0610R6H-B246-2_5 ON/OFF +1.8V_CORE +1.8V_DVI +3.3V_ADC +1.8V_ADC +3.3V_PLL CX000800000/1206 +3.3V_LVDSA CX000800000/1206 +3.3V_LVDS CX000800000/1206 +3.3V_LBADC CX000800000/1206 +3.3V_DVI CX000800000/1206 +3.3V_DIG CX000800000/1206 +3.3V_LVDSB CX000800000/1206 CX000800000/1206 +3.3V_I/O_MALIBU CX000800000/1206 CX000800000/1206 10K/6 100K/6 PWM1 4.7K/6 PWM1 MMBT3904L 4.7K/6/NS MMST3906/NS PBIAS 4.7K/6/NS 10K/6 100K/6 PWM0 4.7K/6 PWM0...
  • Page 47 12V_A left_in R109 CX000800000/1206 R110 ZD005D100 CX000800000/1206 AGND AGND AGND AGND +12V AGND 10K/6 MUTE 4.7K/6 AGND MUTE AGND VOLUME VOLUME +12V CX000800000/1206 12V_A 0.01uF/6 AGND AGND 1U/8 RIN+ 1U/8 RIN- AGND 1U/8 V2P5 1U/8 LIN- 1U/8 LIN+ AVDDREF VREF VARDIFF VARMAX AGND...

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