Acer AL2021 AL2021 Service Guide
Acer AL2021 Manual
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- Acer AL2021 | AL2021 Service Guide - 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 - - Acer AL2021 | AL2021 Service Guide - Page 2
, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expresses or implied, with respect to the contents hereof and specifically - Acer AL2021 | AL2021 Service Guide - Page 3
information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishment of procedures. - 3 - - Acer AL2021 | AL2021 Service Guide - Page 4
in the printed Service Guide, for ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a 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 - Acer AL2021 | AL2021 Service Guide - Page 5
digital device, pursuant to Part 15 of the FCC Rules with the instructions, may cause user's authority to operate the equipment. 2. Shielded interface cables and AC power monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing - Acer AL2021 | AL2021 Service Guide - Page 6
power strips and extension cords. Overloading can result in fire or electric shock. Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric shock. Never spill liquids on the monitor. Do not attempt to service the monitor yourself; opening - Acer AL2021 | AL2021 Service Guide - Page 7
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. You may find slightly uneven - Acer AL2021 | AL2021 Service Guide - Page 8
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 - - Acer AL2021 | AL2021 Service Guide - Page 9
Monitor Feature Chapter 1 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 Size Pixel pitch Viewable - Acer AL2021 | AL2021 Service Guide - Page 10
Switch Function External Controls : Regulatory Compliance * Power Switch * MENU/ENTER * >/ Volume * - Acer AL2021 | AL2021 Service Guide - Page 11
3 MAC 13" 4 VESA 5 VESA 6 VESA 7 VESA 8 VESA 9 VESA 10 MAC 16" 11 VESA 12 VESA 13 VESA 14 VESA 15 VESA 16 VESA 17 VESA Resolution 720 x 400 640 x 480 640 x 480 640 x 480 640 x 480 800 x 600 800 x 600 800 x 600 800 x 600 832 x 624 1024 x 768 1024 x 768 1024 - Acer AL2021 | AL2021 Service Guide - Page 12
Monitor Block Diagram DVI INPUT ( CN8 ) VGA INPUT ( CN7 ) +3.3V_ I/O_MALIBU +2.5V_DDR , SDA/SCL MSTR SCL/SDA FSDATA,FSADDR,FSBKSEL0/1 FSCLK-/+,FSDQM POWER SWITCH AIC 1563 (U2) (U3) +2.5V (U4) +3.3V (U6) +1.8V +12V FROM POWER BOARD /RESET MAX809_1 (U8) I2C 24LC32SN (U7) FRAME STORE - Acer AL2021 | AL2021 Service Guide - Page 13
PCB CONDUCTOR VIEW Main Board - 13 - - Acer AL2021 | AL2021 Service Guide - Page 14
Button Board - 14 - - Acer AL2021 | AL2021 Service Guide - Page 15
INSTRUCTIONS Chapter 2 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 1. 2 3 4 < 5 > POWER - Acer AL2021 | AL2021 Service Guide - Page 16
screen. H-Position: This adjusts the horizontal. V-Position: This adjusts the vertical. COLOR: There are three ways of adjusting color: Warm (Reddish white) Cool (Bluish white) User defined: You can adjust the colors red, green and blue to the intensity you desire. - 16 - - Acer AL2021 | AL2021 Service Guide - Page 17
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. INPUT SIGNAL SELECTION : Detect input signal "Analog" or "Digital . When simultaneous input signal then it - Acer AL2021 | AL2021 Service Guide - Page 18
Dark System in power-off mode 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 R, G, B OFFSET: Adjust current RGB cut off level R, G, B GAIN: Adjust current RGB Driver value. - 18 - Acer AL2021 | AL2021 Service Guide - 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 to currently temperature memory address. FACTORY RESET: Recall to factory setting and power off immediately. VERSION: Display F/W version - 19 - - Acer AL2021 | AL2021 Service Guide - Page 20
a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the - Acer AL2021 | AL2021 Service Guide - Page 21
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. 18 AWG, type SJT or SVT three - Acer AL2021 | AL2021 Service Guide - Page 22
Chapter 3 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 - Acer AL2021 | AL2021 Service Guide - Page 23
Top View : Side View : ( unit : mm ) - 23 - - Acer AL2021 | AL2021 Service Guide - Page 24
Mechanism exploded drawing - 24 - - Acer AL2021 | AL2021 Service Guide - Page 25
- 25 - - Acer AL2021 | AL2021 Service Guide - Page 26
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. Stick the rubber on the back isde of FRAME - Acer AL2021 | AL2021 Service Guide - 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) MODULE 1. Plug the Cable MB-POWER in to SCALAR/B: (DD0L0TPB001 CABLE ASSY MB-POWER , Q'TY:1 ) (21L0TSB0005 SCALAR/B ASSY, Q'TY:1) - - Acer AL2021 | AL2021 Service Guide - Page 28
-ESD Q'TY:1) ( FCL0T002011 MYLAR(POWER) Q'TY:1) 1.Fix the MAIN-BD-ESD on FRAME by screw (MM30040IBJ9 SCREW M3.0*4.0-I(NI) Q'TY:4) 2. Fix MAIN-BD-ESD & PORT BKT together ( MM30040IBJ9 SCREW M3.0*4.0-I(NI) Q'TY) 1. Stick the INV-MYLAR on INVERTER ESD (FBL0T003016 INVERTER ESD Q'TY:1) ( FCL0T001014 INV - Acer AL2021 | AL2021 Service Guide - 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 ( - Acer AL2021 | AL2021 Service Guide - 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. Fix - Acer AL2021 | AL2021 Service Guide - Page 31
-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. Put the HINGE-CAP-SIDE - Acer AL2021 | AL2021 Service Guide - Page 32
SHOOTING This chapter provides trouble shooting information forAL2010 Chapter 4 1. No Power No Power Check Power Button From Main /B(CN1) to Button/B(CN1) OK Check power moduleOutput CN1 Pin 1 = on/off (Backlight) ? Pin 2 = Adj (Backlight) ? Pin 3,4 = GND ? Pin 5 = NC ? Pin 6,7 = +12V ? OK - Acer AL2021 | AL2021 Service Guide - Page 33
2. No Characters , Missing one Color No Characters Missing one color Change Inverter Check 1.8V , 2.5V , 3.3V Output ? YES No Check Inverter YES Check CN2 pin Output And CN2 OK ? From U5 to LCD panel ? No NO Check Panel or Change Connector (30Pin) or Cable NO Change VGA Cable Check U1? - Acer AL2021 | AL2021 Service Guide - Page 34
Connector Information Phonejack stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle CN9 1 5 4 3 2 PhoneJack Stereo Video signal connector 15P Mini D-Sub connector x 1 CN6 10 5 9 4 8 3 7 2 6 1 DB15HD - Acer AL2021 | AL2021 Service Guide - Page 35
C4 BLU RED GRN RXC+ RXC- 25 RX2RX2+ GND RX4- 23 GND 22 RX5+ 21 RX5- 20 GND 19 RX0+ 18 RX0- HP RX3RX3+ 5V GND 12 GND 11 RX1+ 10 RX1- VS 8 18 TMDS data0+ (RX0+) 19 TMDS data0 shield (GND) 20 NC 21 NC 22 TMDS clock shield (GND) 23 TMDS clock+ (RXC+) 24 TMDS clock- (RXC-) - - Acer AL2021 | AL2021 Service Guide - Page 36
printed Service Guide. For ACER-AUTHORIZED CERVICE PROVIDERS, your Acer office may have a 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 - Acer AL2021 | AL2021 Service Guide - Page 37
Acer Part No. LOT MB ASSY 55.L06VE.001 ADP 12V 4.6A ADP-58AFA POWER BOARD (DELTA) 55.L06VE.002 90-264V REV1A INVERTER BOARD(TDK) INV MODULE LOT(12V, V=800V, A1A) 55.L06VE.003 BUTTON BOARD LOT BUTTON/B ASSY 55.L06VE.004 LCD 20.1" TFT UXGA FUJITSU FLC51UXC8V-10 LCD (TFT) FLC51UXC8V-10 20 - Acer AL2021 | AL2021 Service Guide - Page 38
.L06VE.002 STAND ASSY,BLACK LOT STAND SUB ASSY 60.L06VE.003 HING CAP,BLACK HING-CAP SIDE LOT (EBL0T004,REV3A) 60.L06VE.004 LCD FRAME LOT LCD BKT ASSY 33.L06VE.001 LOT POWER/B SHIELD MAIN/POWER BOARD ESD ASSY 33.L06VE.002 INVERTER BOARD ESD LOT INVERTOR ESD ASSY 33.L06VE.003 - 38 - - Acer AL2021 | AL2021 Service Guide - Page 39
PORT BRACKET PORT BKT LOT (FBL0T005,REV 3A) 33.L06VE.004 SPEAKER SET SPEAKER ASSY LOT FG-QT3900 2W 2 23.L06VE.001 - 39 - - Acer AL2021 | AL2021 Service Guide - Page 40
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 SHEET 1 2 3 4 5 6 7 8 REVISION HISTORY Date Author Ver Comments 2003/02/20 A Initial Release - Acer AL2021 | AL2021 Service Guide - Page 41
VOLUME VOLUME SHEET 8 MUTE MUTE MUTE 08. Audio PPWR PBIAS PWM0 PWM1 PPWR PBIAS PWM0 PWM1 SHEET 7 PPWR PBIAS PWM0 PWM1 07. Power VOLUME FSDATA[0..31] FSADDR[0..11] FSCLK+ FSCLKFSDQS FSCKE /FSRAS /FSCAS /FSWE FSBKSEL0 FSBKSEL1 FSDQM[0..3] FSDATA[0..31] FSADDR[0..11] FSCLK+ FSCLKFSDQS FSCKE - Acer AL2021 | AL2021 Service Guide - Page 42
15 GND HP 16 RX0- 17 18 RX0+ GND RX5RX5+ 19 20 21 22 GND 23 RXC+ RXC- 24 RED GRN BLU HS TP327 are the only through hole parts as GND test Probes on Board. D5 D4 1 1 GND RGB SIGNAL GNDs at 2-mm from respective RGB series Capacitors GNDGNDGND R94 0/6 U11 1 2 1A 3 4 1Y 2A 2Y 5 6 - Acer AL2021 | AL2021 Service Guide - Page 43
15 17 19 21 23 25 27 29 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 12 14 16 18 20 22 24 26 28 30 1841 30P TXA0+ TXA1+ TXA2+ TXAC+ TXA3+ TXB0+ TXB1+ TXB2+ TXBC+ TXB3+ LCDVCC - Acer AL2021 | AL2021 Service Guide - Page 44
DQ11 61 63 64 68 DQ12 DQ13 DQ14 DQ15 69 71 72 DQ16 DQ17 9 10 12 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 13 17 18 20 21 FSDATA8 FSDATA9 FSDATA10 FSDATA11 FSDATA12 FSDATA13 FSDATA14 FSDATA15 FSDATA16 FSDATA17 FSDATA18 FSDATA19 FSDATA20 FSDATA21 FSDATA22 FSDATA23 DQ24 DQ25 DQ26 74 75 77 78 DQ27 - Acer AL2021 | AL2021 Service Guide - Page 45
A9 A8 A7 A6 A5 A4 10 11 12 A3 A2 A1 A0 DQ7 21 20 OCMDATA7 OCMDATA6 DQ6 19 OCMDATA5 DQ5 DQ4 DQ3 DQ2 18 17 15 14 OCMDATA4 OCMDATA3 TCLK OUTPUTS_ZERO OUTPUTS_ZERO GND GND 10: LOW (Use TCLK) 11: LOW (set all display output to '0') 12: LOW 13: LOW(disable serial interface debug) 14: LOW 15 - Acer AL2021 | AL2021 Service Guide - Page 46
/6 1% + R39 200/6 1% C43 100u/25V +2.5V_DDR GND L3 2 1 47UH D3 RB081L-20 +5V L4 CX000800000/1206 1 C34 1nF/6 C35 0.1uF/6 C36 1000u/6.3V 2 GND GND GND L0T Quanta Computer Inc. Title Size Date: POWER Document Number 07. Power Friday, July 11, 2003 DISPLAY Sheet 7 of Rev 2A 8 - 46 - - Acer AL2021 | AL2021 Service Guide - Page 47
1nF/6 L25 C112 1nF/6 CX000800000/1206 C105 0.1uF/6 C110 22uF/25V 13 BSL+ 14 PVCCL 15 PVCCL 16 LOUT+ 17 LOUT+ 18 PGNDL 19 PGNDL 20 LOUT21 LOUT22 PVCCL 23 PVCCL 24 BSL- 48 BSR+ PVCCR 47 46 PVCCR 45 ROUT+ 44 ROUT+ PGNDR 43 PGNDR 42 41 ROUT- 40 ROUT