Acer X241 X241W Service Guide
Acer X241 Manual
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- Acer X241 | X241W Service Guide - Page 1
Acer X241W 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 - - Acer X241 | X241W Service Guide - Page 2
by any means, electronic, mechanical, magnetic, optical, chemical, 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 - Acer X241 | X241W Service Guide - Page 3
Conventions The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages 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 X241 | X241W Service Guide - Page 4
Preface Before using this information and the product it supports, please read the following general information. 1. this Service Guide provides you with all technical information relating to the BASICCONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements - Acer X241 | X241W Service Guide - Page 5
and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, not expose the monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel - Acer X241 | X241W Service Guide - Page 6
or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacture and follow the kit instructions. z Slots and . Please refer all servicing to qualified service personnel. z To ensure satisfactory operation, use the monitor only with UL listed - Acer X241 | X241W Service Guide - Page 7
The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES z Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it - Acer X241 | X241W Service Guide - Page 8
Table of contents Chapter 1 MONITOR FEATURE 9 Chapter 2 OPERATING INSTRUTION 31 Chapter 3 MACHINE ASSEMBLY 37 Chapter 4 TROBLE SHOOTING 53 Chapter 5 CONNECTOR INFORMATION 56 Chapter 6 FRU LIST 58 Chapter 7 SCHEMATIC DIAGRAM 62 Chapter 8 POWER BOARD INFORMATION 70 - 8 - - Acer X241 | X241W Service Guide - Page 9
Chapter 1 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 Size Pixel pitch Viewable - Acer X241 | X241W Service Guide - Page 10
Switch * Power Switch * MENU / EXIT * / Volume * / Volume * AUTO / ENTER External Controls : Regulatory Compliance * Contrast/brightness * Focus * Clock * H.Position * W.Position * Language * OSD Color temperature * OSD Position & Timeout * Auto Config * Input * Information * Reset * Exit cUL, - Acer X241 | X241W Service Guide - Page 11
Timings The product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable. MODE NO. 1 2 3 4 RESOLUTION 720 x 400 640 x 480 640x480 640 x 480 Dot clock(MHz) 28.321 25.175 30.24 31.5 f h 31.469kHz 31.469kHz 35.0kHz 37.861kHz H-Total ( us ) 31.78(900dots - Acer X241 | X241W Service Guide - Page 12
MODE NO. RESOLUTION Dot clock(MHz) f h H-Total ( us ) H-Sync ( us ) H-B-P ( us ) H-Active ( us ) H-F-P ( us ) f v V-Total (ms ) V-Sync ( ms ) V-B-P (ms ) V-Active ( ms ) V-F-P ( ms ) SYNC. H/V POLARITY SEP . SYNC MODE NO. RESOLUTION Dot clock(MHz) f h H-Total ( us ) H-Sync ( us ) H-B-P ( us ) H- - Acer X241 | X241W Service Guide - Page 13
MODE NO. 17 18 19 20 RESOLUTION 1280 x 960 1600 x 1200 1280 x 720 1280 x 768 Dot clock(MHz) 108 162 74.481 79.5 f h 60.000 KHz 75.000 KHz 44.760KHz 47.776KHz H-Total ( us ) 16.667 (1800dots) 13.333 (2160 dots) 22.341 (1664dots) 20.931 (1664dots) H-Sync ( us ) 1.037 ( 112 dots) - Acer X241 | X241W Service Guide - Page 14
MODE NO. 25 26 27 RESOLUTION 1680 x 1050 848 x 480 1920X1200 Dot clock(MHz) 146.25 33.75 154 f h 65.29 KHz 31.02 KHz 74.038Khz H-Total ( us ) 15.316 (2240 dots) 32.237 (1088 dots) 13.506 (2080 dots) H-Sync ( us ) 1.203 ( 176 dots) 3.319 (112 dots) 0.208 (32 lines) H-B-P ( us ) 1. - Acer X241 | X241W Service Guide - Page 15
Monitor Block Diagram 5 Page 4 4 03. Graphic Inputs 3 Page 5 2 1 Page 6 ADO_R ADO_L ADO_R ADO_L VOLUME D RED+ REDGREEN+ GREEN- BLUE+ BLUE- SOG AHS AVS RED+ REDGREEN+ GREENBLUE+ BLUESOG - Acer X241 | X241W Service Guide - Page 16
PCB CONDUCTOR VIEW Main Board - Acer X241 | X241W Service Guide - Page 17
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Button Board - Acer X241 | X241W Service Guide - Page 27
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POWER BOARD - 16 - - Acer X241 | X241W Service Guide - Page 29
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Chapter 2 OPERATING INSTRUCTIONS Front Panel Definition This Section defines the front panel User Interface for Led Indictor and , press to enter a selection in OSD. If OSD is ○5 AUTO inactive, press and the monitor will automatically optimize the position, focus and clock of your display. - 31 - - Acer X241 | X241W Service Guide - Page 32
OSD menu Contrast: This adjusts dark and light shades of color relative to each other. Brightness: This adjusts the brightness of the picture on the screen. Focus: This removes any horizontal distortion and makes the picture clear and sharp. Clock: If there are any vertical stripes seen on the - Acer X241 | X241W Service Guide - Page 33
, Spanish, Russia, Nederlands, French, Italian, and Finnish. OSD Settings: This changes the position of the OSD window on the screen and the staying time. Input signal: Select either Analog Input or Digital Input video. - Acer X241 | X241W Service Guide - Page 34
Information: This shows information about the screen. Reset: Resets all settings to default levels. Exit: Exit from OSD. - Acer X241 | X241W Service Guide - Page 35
: LED Color Green System Status 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. HOW TO OPTIMIZE THE DOS-MODE Plug and play Plug & play - Acer X241 | X241W Service Guide - Page 36
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 - Acer X241 | X241W Service Guide - Page 37
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 X241 | X241W Service Guide - Page 38
Real View: Top View: - 38 - - Acer X241 | X241W Service Guide - Page 39
Side View: (unit : mm ) - 39 - - Acer X241 | X241W Service Guide - Page 40
ASSEMBLY PROCESS PUT THE PCB SHIELDING ON THE FOAM. INSERT THE M/B CABLE TO THE SINK OF M/B, THEN PUT IT TO THE PRODUCTION LINE CONNECT THE POWER BOARD AND MAIN BOARD AND PUT THE TO SHIELDING 2 SCAN THE FLOW CARD AND POWER BOARD CODE - Acer X241 | X241W Service Guide - Page 41
LOCK UP3*PCS SCREW(F3*6-T) WITH POWER BOARD AS LEFT SHOW LOCK UP 1*PCS SCREW(M4.0*8-B) WITH INV/B AS LEFT SHOW PUT THE POWER/MYLAR TO THE SHIELDING LOCK UP 3*PCS SCREW(F3*6T) WITH MAIN BOARD AS LEFT SHOW GET THE INVERTER BOARD / CABLE AND CHECKING INSERT THE CABLE TO THE SINK OF INVERTER BOARD - Acer X241 | X241W Service Guide - Page 42
GET THE PLASTIC SCREW AND INSERT IT INTO THE INVERTER BOARD STICK 1*PCS MYLAR ON THE INVERTER BOARD SCAN THE FLOW CARD AND INVERTER BOARD CODE PUT 2*PCS BRACKET TO THE INVERTER BOARD LOCK UP 4*PCS SCREWS( M4.0*6-B) TO THE INVERTER BOARD AS LEFT SHOW MOVE THE INVERTER BOARD TO THE FRONT OF PRODUCTION - Acer X241 | X241W Service Guide - Page 43
TEAR OFF THE PLASTIC FILM OF PANEL AND CHECKING WHETHER SCRAPE OR DIRTY STICK GOOEY ON THE PLASTIC FILM FOR FIXING TURN OVER THE LCD AND TEAR OFF THE GOOEY OF CCFT CABLE SCAN THE FLOW CARD THE PANEL CODE STICK 1*PCS FLOW CODE ON THE PANEL AS LEFT SHOW INSERT THE UPSIDE LAMP CABLE TO THE INVERTER - Acer X241 | X241W Service Guide - Page 44
SCAN THE FLOW CARD THE MAIN BOARD CODE INSERT 3*PCS DOWNSIDE LAMP CABLE TO THE INVERTER BOARD PUT THE LEFT BRACKET TO THE INVERTER BOARD LOCK UP 4*PCS(F3*6-T) WITH BRACKET LOCK UP 2*PCS(M3*4-I) WITH THE LEFT BRACKET LOCK UP 2*PCS(M3*4-I) WITH LEFT BRACKET TURN OVER THE LCD - Acer X241 | X241W Service Guide - Page 45
GET THE BEZEL AND CHECKING PUT THE BEZEL TO THE PANEL STICK PLASTIC FILM ON THE BEZEL TURN OVER THE LCD - Acer X241 | X241W Service Guide - Page 46
LOCK UP 3*PCS SCREWS (M3*4-I) WITH THE RIGHT SIDE BEZEL PUT 1*PCS FASTENER TO THE PANEL BACKSIDE LOCK UP3*PCS SCREWS (M3*4-I) TO THE LEFT SIDE BEZEL INSERT THE LVDS CABLE TO THE SINK OF LCD PUT THE SHIELDING ON THE LCD - Acer X241 | X241W Service Guide - Page 47
STICK GOOEY ON THE SINK OF LVDS CABLE LOCK UP4*PCS SCREWS WITH THE SHEILDING AND BRACKET PUT THE FASTENERS TO BOTH SIDES OF LCD LOCK UP 4*PCS(F3*10-B) TO BOTH SIDES FOR FIXING - Acer X241 | X241W Service Guide - Page 48
GET BUTTON BOARD AND CABLE AND INSERT THE CABLE TO THE SINK OF BUTTON BOARD PUT THE BUTTON BOARD TO THE BEZEL AND INSERT CABLE TO IT STICK 1*PCS AL FOIL TO THE BRACKET AS LEFT SHOW STICK 1*PCS AL FOIL TO THE SHIELDING AS LEFT SHOW INSERT THE INVERTER BOARD CABLE TO THE POWER BOARD - Acer X241 | X241W Service Guide - Page 49
LOCK UP 4*PCS I/O NUT TO THE DOWNSIDE OF VGA STICK 1*PCS AL FOIL ON THE SHIELDING AS LEFT SHOW STICK 1*PCS AL FOIL TO THE BRACKET AS LEFT SHOW STICK 1*PCS AL FOIL TO THE SHIELDING AS LEFT SHOW PUT THE CABLE TO THE FASTENER AND STICK 1*PCS GOOEY ON THE LOCATION AS LEFT SHOW - Acer X241 | X241W Service Guide - Page 50
CHECKING THE AL FOIL(5*PCS) WHETHER WRONG MODE AND LOCATION CHECKING THE CABLE WHETHER SETTLED CHECKING THE GOOEY WHETHER UNSTICK OR SETTLED ROCK THE LCD WHETHER ANY DIFFERENT THINGS GET THE REAR COVER AND CHECKING PUT THE REAR COVER TO THE BEZEL STICK 1*PCS GOOEY TO THE REAR COVER AS LEFT SHOW LOCK - Acer X241 | X241W Service Guide - Page 51
CHECKING THE TWO SCREWS ON REAR COVER WHETHER SETTLED LOCK UP 4*PCS SCREWS(M4*10-B) TO THE REAR COVER FOR FIXING GET THE BASE AND CHECKING PUT THE BASE TO THE STAND OF REAR COVER PUT THE BAG OF TOOL TO THE BASE STAND UP THE LCD AND PUT OUT THE FOAM - Acer X241 | X241W Service Guide - Page 52
TEAR OFF THE PASTIC FILM OF BEZEL AND PANEL AND CHECKING THE GAP WHETHER WRONG CHECKING THE OUTLINE OF LCD WHETHER SCRAPE AND DIRTY CHECKING GAP BETWEEN THE BEZEL AND REAR COVER WHETHER WRONG INSERT THE SIGNAL CABLE AND POWER CORD TO LCD AND SETTLE IT STICK FLOW CARD ON THE BEZEL - Acer X241 | X241W Service Guide - Page 53
TROUBLE SHOOTING 1. No Power No Power Chapter 4 Change NO Power Board No Check Short Of Main Board NO Change U13,U12 NO Change X1 or U4 - Acer X241 | X241W Service Guide - Page 54
2. Missing Color Change NO Cable Change NO R4,R8,R10,U 7 NO Change U7 or CN5 Cable or Panel NO Adjustment R/G/B Color Missing Color Check VGA or DVI Cable Yes Check R4,R8,R10 Yes Check CN5 LVDS Signal Yes Check OSD R/G/B Gain Yes Change Panel - Acer X241 | X241W Service Guide - Page 55
3. Always show "NO SIGNEL" "NO SIGNEL" Change NO Check VGA or Cable DVI Cable Yes VGA Check R4,R8,R10,R20, R21 Yes Yes Change U7 DVI Check U7 Pin 109,110,112,113, 117, 118,120,121 NO Change VGA Cable or R4, R8,R10,R20, R21 or U7 NO Change DVI Cable or U7 - Acer X241 | X241W Service Guide - Page 56
stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle Chapter 5 Video signal connector 15P Mini D-Sub connector x 1 PIN Signal 1 Red 2 Green 3 Blue 4 No Pin 5 Ground 6 Ground Red 7 Ground Green 8 Ground Blue 9 +5 V for DDC 10 Ground 11 Ground - Acer X241 | X241W Service Guide - Page 57
Proprietary connecting of DVI box The PIN assignment of the 24 pin DVI-D connector / cable is as follows: PIN Signal 1 TMDS data22 TMDS data2+ 3 TMDS data2 shield 4 NC 5 NC 6 DDC clock 7 DDC data 8 Not connected 9 TMDS data110 TMDS data1+ 11 TMDS data1 shield 12 NC - Acer X241 | X241W Service Guide - Page 58
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 machines. NOTE: To scrap or to return the defective parts, you should follow the - Acer X241 | X241W Service Guide - Page 59
EXPLODED VIEW - Acer X241 | X241W Service Guide - Page 60
.0*10-B BLACK (NYLDK)GP 1 40 HCWDTB01014 RATING LABEL-EN WDTB GP 4 41 JXWDTB01014 LCD FILM-EN WDTB GP 4 42 AAM240M2006 LCD 24'LTM240M2-L02 FOR ACER CON GP NUIT 2 4 1 1 1 1 1 1 1 1 1 4 1 9 1 12 2 4 1 1 1 - Acer X241 | X241W Service Guide - Page 61
Part list Above picture show the description of the following component Item Picture Description Part No 1 back cover 25WDTBLC001 2 bezel 34WDTBLB004 3 base 38WDTBBS006 4 stand 37WDTBSU007 5 screw MM40080BBW1 - 61- - Acer X241 | X241W Service Guide - Page 62
5 4 3 2 SCHEMATIC DIAGRAM D WUXGA/UXGA LCD Controller Board Design Genesis 5861 RD1 CONTENTS SCHEMATIC Name SHEET 01. Cover Page 1 02. CONTENTS 2 03. GRAPHIC INPUT 3 04. FLI5961 4 05.SDRAM /AMP/ OUTPUT 5 C 06. POWER/KEYPAD 6 07. History 7 REVISION HISTORY Date Author - Acer X241 | X241W Service Guide - Page 63
5 4 3 2 1 Modify for EMI 11/08 VGA_+5V AGND AGND AGND +5V VGA_+5V 3 1 2 3 C2 C3 C4 R1 47R 1% C1 0.1uF BLUE1+ D1 BAT54C 16 CN1 75R 1%75R 1%75R 1% 1 2 SCL_VGA SDA_VGA 15 5 10 VS_VGA 14 4 9 HS_VGA 13 3 8 12 2 7 11 1 6 VGA_cable_detect D 3 3 DB15 HD +3. - Acer X241 | X241W Service Guide - Page 64
5 4 3 +1.8_DVDD +1.8V_AVDD FB1 L1206 FB3 L1206 C67 47uF/10V C68 0.1uF C69 0.1uF C70 0.1uF C71 0.1uF C72 0.1uF C49 47uF/10V C50 0.1uF C51 0.1uF C52 0.1uF C53 0.1uF C54 0.1uF C55 0.1uF C56 0.1uF +3.3_AVDD +3.3_ADCV FB5 L1206 GND GND +3.3_AVDD FB6 L1206 3.3V_AVDD U7 C81 C82 - Acer X241 | X241W Service Guide - Page 65
5 4 3 2 1 DQ_B_[0..15] DQ_A_[0..15] A[0..10] DQ_B_[0..15] DQ_A_[0..15] A[0..10] +3.3_MEM +3.3_MEM_Q D U9 IC50TSOPII DQM WE# CAS# RAS# BA WE# CAS# RAS# R124 2K BA GND DQ_A_0 DQ_A_1 DQ_A_2 DQ_A_3 DQ_A_4 DQ_A_5 DQ_A_6 DQ_A_7 CS# A10 A0 A1 A2 A3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - Acer X241 | X241W Service Guide - Page 66
+12V D C B A + GND C205 100u/25V 5 R237 390K/6 4 3 Change 5V to 3.3V L9 1 2 200UH R225 150/1206 U15 8 DRI SC 1 7 IPK SE 2 6 VCC TC 3 5 FB GND 4 AIC1563 D19 C A SSM54PT 13.7K/1% C206 2200pF/6 R224 1K/1% C195 330pF/5% R223 GND GND GND ADD 12V to 18V 10/14/2005 C207 0. - Acer X241 | X241W Service Guide - Page 67
5 D CN8 8 7 6 5 4 3 2 1 JST 8Pin PH2.0mm H C B A 5 4 MENU_O SEL_O PWR_O RIGHT_O LEFT_O AMBER_O GREEN_O 4 3 2 1 SW1 TOUCH SWITCH 4P MENU D SW2 TOUCH SWITCH 4P AUTO SW3 TOUCH SWITCH 4P POWER SW4 TOUCH SWITCH 4P C RIGHT SW5 TOUCH SWITCH 4P LEFT LD1 LED Dual AMBER 1 2 3 GREEN LD2 LED - Acer X241 | X241W Service Guide - Page 68
3DA01306X G H A B F1 VIN 3 VIN 4 5 C1 R3 R4 Q1 R1 ON/OFF 1 ON/OFF Q3 Q2 R2 C5 R22 CR1 C22 G G Vadj 2 Vadj GND 6 7 R13 R9 C36 R12 R14 CR2 R35 CR3 R36 R5 R15 C D F WJ2 C32 C6 R11 CC C24 WJ1 AA C25 BB R7 R31 R32 R6 C23 R8 R33 R34 DD 20 19 18 17 16 15 14 13 12 11 NDR_B - Acer X241 | X241W Service Guide - Page 69
3DA01306X VINVIN F101 C101 CR101R105 CR102R106 C108 AA BB C109 A B CC HH H CR108 CR109 DD R100 C100 R101 C102 R102C103 R103 C104 C D C110 C111 C112 T103 9 1 7 5 8 765 Q105 1 2 34 C105 T101 9 1 7 5 8 765 Q106 1 2 34 C106 T102 9 1 7 5 T104 9 1 7 5 FE FE C113 F - Acer X241 | X241W Service Guide - Page 70
Power Board Current set Information Power Board AS08B360411 P/N Model Name AS08B360411 FSP112-3F01(T43) 90~240V AS08B360411 NO Jump Chapter 8