Related Manuals for Acer AL2023
Summary of Contents for Acer AL2023
- Page 1 Acer AL2023 (Dual) 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 Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
- Page 3 Conventions The following conventions are used in this manual: Denotes actual messages that appear on screen Screen messages Note Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or Warning 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 l Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. l 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 The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES l 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 … … … … … … … … … … … … … … … … … … … … .19 Chapter 3 MACHINE ASSEMBLY …... -
Page 9: Chapter 1 Monitor Feature
Chapter 1 Monitor Feature Driving system TFT Color LCD Size 20" Pixel pitch 0.294 mm Viewable angle Samsung: 89/89/89/89 degree(typ.) LG: 89/89/89/89 degree(typ.) LCD Panel Brightness Samsung LTM201U1-L01: 300 cd/m (typ.) LG LM201U05-SLA1: 300 cd/m (typ.) Contrast Ratio 800:1 (Samsung LTM201U1-L01) 800:1(LG LM201U05-SLA1) Response time Samsung LTM201U1-L01 16ms, LG LM201U05-SLA1 16ms... - Page 10 Environmental Operating Temp : 5 to 40 degree ; Considerations Storage Temp : -20 to 60 degree ; Operating Humidity : 10% to 85% 453.6(W)x427.6(H)x202.58mm(D) Weight (N.W.) Dimension 6.4kg External Controls Switch * Power Switch * MENU / EXIT / Volume / Volume * AUTO / ENTER * Contrast/brightness...
- Page 11 31.469kHz 31.469kHz 35.0kHz 37.861kHz H-Total ( us ) 31.78(900dots) 31.778 (800 dots) 28.571(864 dots) 26.413 (832 dots) H-Sync ( us ) 3.813(108dots) 3.813 (96 dots) 2.116 (64 dots) 1.270(40 dots) H-B-P ( us ) 1.907(54dots) 1.907 (48 dots) 3.175 (96 dots) 4.064(128 dots) H-Active ( us ) 25.42(720dots)
- Page 12 H-F-P ( us ) 0.508 (16 dots) 0.67(24 dots) 1.000 (40 dots) 0.323 (16 dots) 75Hz (75) 56.25 60Hz (60.316) 75Hz (75.000) V-Total (ms ) 13.333 (500 lines) 17.78(625 lines) 16.58 (628 lines) 13.333 (625lines) V-Sync ( ms ) 0.080 (3 lines) 0.06(2 lines) 0.106 (4 lines) 0.064 (3 lines)
- Page 13 V-Active ( ms ) 12.48 (600 lines) 12.55 (624 lines) 15.880(768 lines) 13.60(768 lines) V-F-P ( ms ) 0.770 ( 37 lines ) 0.02(1 line) 0.062(3 lines) 0.05(3 lines) SYNC. H/V + / + POLARITY SEP . SYNC MODE NO. RESOLUTION 1024 x 768 1280 x 1024...
- Page 14 RESOLUTION 1280 x 960 1600 x 1200 clock(MHz) 60.000 KHz 75.000 KHz H-Total ( us ) 16.667 (1800dots) 13.333 (2160 dots) H-Sync ( us ) 1.037 ( 112 dots) 1.185 ( 192 dots) H-B-P ( us ) 2.889 (312 dots) 1.877 (304 dots) H-Active ( us ) 11.852 (1280 dots) 9.877 (1600 dots)
- Page 15 Monitor Block Diagram PCB CONDUCTOR VIEW Main Board - 15 -...
- Page 16 - 16 -...
- Page 17 - 17 -...
- Page 18 - 18 -...
- Page 19 Button board - 19 -...
- Page 20 Chapter 2 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. External Controls Power on/off POWER Blue: power on Orange: in sleep mode Press to view OSD.
- Page 21 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 22 Option Auto Config. : System choose signal “Analog or Digital” Reset: Recall to default settings. Information: This shows brief information on the screen. Setting Language: Select the OSD menu language from English, French, German, Italian, Spanish, Simplified Chinese, Traditional Chinese, Japanese and Russian. OSD H.
- Page 23 LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color System Status Green System in normal operation mode Amber System in power-saving mode Dark System in power-off mode LOGO : When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.
- Page 24 THIS MONITOR WILL APPEAR TO BE NON-FUNCTIONAL IF THERE IS NO VIDEO INPUT SIGNAL. IN ORDER FOR THIS MONITOR TO OPERATE PROPERLY, THERE MUST BE A VIDEO INPUT SIGNAL. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association(VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK).
-
Page 25: Chapter 3 Machine Assembly
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 putting back the components. 2. - Page 26 Assembly process Picture Description 1. [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 INTO M/B CONNECTOR] 1. GET POWER/B AND INSERT JUMPER IN THE APPOINTED PLACE OF JP10 AT 2.
- Page 27 1. INSERT SPEAKER CABLE IN M/B CONNECTOR 2. GET M/B AND ASSEMBLE IT WITH POWER/B,THEN ASSEMBLE THEM IN PCB SHIELD 1. FASTEN 1*PCS SCREW(M 4*8-B) IN P/B 2. FASTEN 2*PCS SCREW(M 3*6-T) IN P/B FASTEN 2*PCS SCREW(M 3*6-T) IN 1. FETCH POWER/B MYLAR PUT IT ON SHIELD AND FASTEN 1*PCS SCREW(M 3*6-T 2.
- Page 28 1. GET THE SHIELD AT FRONTAGE OF THE CONVEYER 2. GET PANEL AND PUT IT ON THE CONVEYER, THEN TEAR OFF THE INCOMING TAPE 1. UNCOVER PANEL PROTECTIVE FILM AND INSPECT IF PANEL IS DIRTY OR SCRATCHED 2. PASTE TYPE ON THE PROTECTIVE FILM TO FASTEN IT 3.
- Page 29 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 RIGHT BKT AND LOCK 2*PCS SCREW(M3*5-I) TO FASTEN IT AND PANEL 2.
- Page 30 1. SCAN S/N AND POWER CODE 2. FASTEN BKT AND BEZEL IN THE RIGHT SIDE WITH SCREW 3*PCS 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.
- Page 31 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 4. TRIM WIRES AND ASSEMBLE SHIELDING IN RIGHT POSITION 1. LOCK 4*PCS SCREW(M3*6-T) TO FASTEN PCB SHIELD INSERT BUTTON CABLE INTO BUTTON PUT THE SPEAKER AT THE APPOINTED PLACE...
- Page 32 1. FASTEN 2*PCS IO-NUT IN THE VGA JOINT 2. FASTEN 2*PCS IO-NUT IN THE M/B JOINT 3. INSERT CCFT CABLE IN POWER/B 1. STICK AL FOIL AT THE APPOINTED PLACE TO FASTEN THE CABLE 2. STICK 2*PCS AL FOIL AT THE APPOINTED PLACE 1.
- Page 33 1. CHECK THE Q’ TY AND LOCATION OF AL FOIL 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.
- Page 34 AT FIRST CHECK IF 2*PCS SCREW IN THE COVER IS LOST LOCK 4*PCS SCREW (M4*10-B) TO FASTEN STAND NECK 1. INSERT VGA CABLE INTO VGA CONNECTOR AND INSERT POWER CORD INTO POWER CONNECTOR 2. GET BASE FIXTRUE AND ASSEMBLE IT TO STAND NECK.
- Page 35 Chapter 4 Trouble Shooting 1. No Power No Power Change Check CN7 Power Board +12V and +5V Check Short Of Main Board Check U13=1.8V U12=3.3V Change U13,U12 Change X1 or Check X1=14.318MHz Change U7 or Check U8 Pin 1,2,5,6 Clock Change U7 RUN Software Check Key...
- Page 36 2. Missing Color Missing Color Change Check VGA or Cable DVI Cable Check R4,R8,R10 Change R4,R8,R10,U Check CN5 Change U7 LVDS Signal or CN5 Cable or Panel Adjustment Change Check OSD R/G/B Color Panel R/G/B Gain - 37 -...
- Page 37 3. Always show “NO SIGNEL” “NO SIGNEL” Change Check VGA or Cable DVI Cable DVI Check U7 VGA Check Change U7 R4,R8,R10,R20, 109,110,112,113, 117, 118,120,121 Change VGA Change DVI Cable or R4, R8,R10,R20, Cable or U7 R21 or U7 - 38 -...
-
Page 38: Chapter 5 Connector Information
Chapter 5 Connector Information Phonejack stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle The PIN assignment of the 15 pin mini D-SUB connector / cable is as follows: MNEM SIGNAL Red Video Green Video Blue Video None... - Page 39 The PIN assignment of the 24 pin DVI D connector / cable is as follows: Signal PIN Signal TMDS data2- TMDS data2+ TMDS data2 shield Ground (return for +5 V and H/V sync) Hot plug detect TMDS data0- DDC clock TMDS data0+ DDC data TMDS data0 shield...
- Page 40 NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how best to dispose it, or follow the rules set by your regional Acer office on how to return it.
- Page 41 Part list Above picture show the description of the following component. Picture Description Part No. Item Back Cover 60.L67VE.001 Stand 60.L67VE.003 Bezel 60.L67VE.007 Base 60.L67VE.004 Screw MM40080BBW1...
- Page 42 ADP/INV,FSP070-2PI01 90~264V GP 55.L67VE.001 BOARD 55.L67VE.002 MAINBOARD ASSY - GM5861 GP L0TB M/B ASSY, GP LCD 20.1 SAMSUNG LTM201U1-L01 LCD 20.1 LTM201U1-L01 FOR ACER CON LK.20106.001 CABLE CABLE ASSY MB-VGA 50.L66VE.003 CABLE ASSY MB-VGA 2.5M (15/15P)L0TB GP CABLE CABLE AUDIO CABLE AUDIO(ST,2.5M)BLACK L0T GP...
-
Page 43: Chapter 7 Schematic Diagram
Chapter 7 SCHEMATIC DIAGRAM Main Board Circuit - 43 -... - Page 44 - 44 -...
- Page 45 - 45 -...
- Page 46 - 46 -...
- Page 47 - 47 -...
- Page 48 Chapter 8 Power Board Current set Information Panel P/N Description Current Type Value AA0201U1008 (Samsung) 20” LTM201U1-L01 7.5mA 20” LM201U04-SL02 AA201U04101 (LG) P/B P/N Description AS05B630401 ADP/INV,FSP070-2PI01 90~264V GP AS05B530008 ADP/INV EADP-59AF B, 90~264V REV1A GP FSP Power module AS05B630401 ADP/INV,FSP070-2PI01 90~264V GP When the lamp current value is 7.5mA, the jumper should be done...
- Page 49 Delta Power module AS05B530008 ADP/INV EADP-59AF B, 90~264V REV1A GP When the lamp current value is 7.5mA, the jumper should be done as the picture left shows 圖 1 When the lamp current value is 7mA, the jumper should be done as the picture left shows 圖...