Page 2 - Table of Contents; Appendix : User’s manual; Copyright
1 1 Table of Contents Important Safety Notice ......................................................................................... 02 01 Product Specification .......................................................................................... 03 02 Flat Panel Specification .................
Page 3 - Acer; Important Safety Notice; Safety precautions; should only be repaired by a qualified technician.; Product safety notice; Adjustment of this product please refers to the user’ manual.
Acer Acer –LCD-A231H Important Safety Notice 1. Safety precautions This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user. Warning: z This monitor should be operated...
Page 4 - 1 Product Specification; . 1 M a i n F e a t u r e s; 体中文
Acer Acer –LCD-A231H 01 Product Specification 1. General: Acer A231H is designed with LVDS interface and VGA/DVI-D/HDMI(option) input, it featured with embedded universal AC power supplies and audio input. It’s a green product and meets all ROHS standard. The power button and display control buttons...
Page 6 - EMC
Acer Acer –LCD-A231H 2.2 Safety, EMC, Ergonomics and Compatibility Requirements EMC Safety EMC&Safety Ergonomics Compatibility Windows 95/98/Me/2000/XP/VISTA/7 Power Management Energy Star 5.0 2.3 Electrostatic Discharge Requirements 2.4 Reliability Items Condition Spec Note MTBF Operating condi...
Page 7 - Note2. Before each test, the buck capacitor need to be discharged.
Acer Acer –LCD-A231H 3. Electrical and Optical Characteristics and Performance 3.1 Main Power Supply 3.1.1 Input characteristics Items Condition Spec Note AC Input Voltage range Universal input full range 90~264Vac AC Input Voltage rating Universal input full range 100~240Vac AC input frequency rang...
Page 8 - Protect delay time
Acer Acer –LCD-A231H OTP(Over temperature protection) Fuse protection Table-1 Status H-sync V-sync Video Power LED Power On on on active ≤ 55W Blue off on blanked < 1W Amber on off blanked < 1W Amber Power Saving off off blanked < 1W Amber Power Off -- -- -- < 1W Off 3.2 Backlight Power ...
Page 10 - Brightness uniformity
Acer Acer –LCD-A231H 3.5 Brightness uniformity The test standard conditions refer to Sec 3.3. % ≥ 75 ) (backlight points nine of luminance Max. ) (backlight points nine of luminance Min. 4. Input / Output Signal Specifications 4.1 AC in 4.1.1 AC Input Voltage: 100~240VAC 4.1.2 AC Input Current: 1.2A...
Page 11 - VGA in
Acer Acer –LCD-A231H 6 TMDS Data1- 16 SDA 7 TMDS Data0+ 17 DDC/CEC Ground 8 TMDS Data0 shield 18 +5V Power 9 TMDS Data0- 19 Hot Plug Detect 10 TMDS Clock+ 4.4 DVI-D in DVI-D Connector Pin assignment: Pin Symbol Pin Symbol 1 TMDS Data 2- 16 Hot Plug Detect 2 TMDS Data 2+ 17 TMDS Data 0- 3 TMDS Data 2...
Page 12 - Ground
Acer Acer –LCD-A231H 9 PC +3.3/+5V 10 Sync. Ground 11 N/C 12 DDC SDA 13 H sync 14 V sync 15 DDC SCL
Page 13 - Items; Analog RGB signal Input impedance =75 Ohm
Acer Acer –LCD-A231H 4.5.2 Signal SPEC: Items Condition Specification Analog RGB signal Input impedance =75 Ohm 0.7Vp-p Sync Input impedance ≧ 1k Ohm TTL level, Separate H/V-sync(+/-) H-Sync Frequency 31K~83KHz V-Sync Frequency 56~76Hz 4.6 Timing table Mode Resolution (active dot) Resolution (total ...
Page 14 - For HDMI Module; Mode
Acer Acer –LCD-A231H 4.7 HDMI timing table( For HDMI Module ) For DVD Player Input, Attached timing is supported : Mode Resolution Pixel Clock MHz H sync KHz V sync Hz VGA 640 x 480p 25.2 31.5 60 NTSC (480i) 4:3 720 x 480 13.50 15.73 60 NTSC (480i) 16:9 720 x 480 13.50 15.73 60 NTSC (480p) 4:3 720 x...
Page 15 - For Audio Module; DDC data
Acer Acer –LCD-A231H 4.8 Audio output SPEC( For Audio Module ) Specification Items Min TYP MAX TEST CONDITIONS Output power (W) 1.2 1.5 1.8 THD+N = 10% ﹐ AT 1KHz 1Vrms Output impedance ( Ω ) 3.4 4 4.6 AT 1KHz 1Vrms Total harmonic distortion plus noise --- --- 10% Po ≦ 2.0W Signal to noise ratio (dB)...
Page 16 - VGA EDID table; DVI EDID table; C D E F; C D E F
Acer Acer –LCD-A231H 4.9.1 VGA EDID table 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 04 72 C9 00 45 23 01 01 1 0A 14 01 03 08 33 1D 78 EA 60 85 A6 56 4A 9C 25 2 12 50 54 B3 0C 10 71 4F 81 00 81 80 95 00 D1 C0 3 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 4 45 00 FD 1E 11 00 00 1A ...
Page 18 - Function Specifications; Notice: Other second panel pls refer to panel spec
Acer Acer –LCD-A231H 5. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. The standard conditions are: Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All...
Page 19 - Optical characteristic of LCD panel; Item; Keypad Function; Control buttons
Acer Acer –LCD-A231H 5.2 Optical characteristic of LCD panel The test methods for the below items’ definition, please refer to the specification of INL MT230DW01 panel. Item Unit Conditions Min. Typ. Max. Remark Right 70 80 [degree] Horizontal Left 70 80 - - Up 70 80 Viewing Angle ( CR >= 10 ) [d...
Page 20 - Hot Key Operation; HOT KEY OPERATION
Acer Acer –LCD-A231H [POWER] Power on or power off the monitor 5.3.2 Hot Key Operation HOT KEY OPERATION FUNCTION e Color AUTO MENU ◄ ► POWER DESCRIPTION FACTORY MODE ● ON Press [e], and then press [POWER] for DC power on. OSD menu will be shown with “F” on the left top. Select “F” for entering fact...
Page 21 - OSD Structure
Acer Acer –LCD-A231H 5.4 OSD Structure The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their default values. First Second Third Fourth Control Range Default Value e-co...
Page 22 - Clock default 50 is for Visa timing. Others depend on timing.
Acer Acer –LCD-A231H Digital --- --- --- HDMI --- --- --- EMEA NO-EMEA --- --- English English --- --- Russian 繁體中文 --- --- Deutsch Deutsch --- --- Français Français --- --- Español Español --- --- Italiano Italiano --- --- Dutch 简 体中文 --- --- Language Finnish 日本語 --- --- English Reset --- --- --- -...
Page 23 - OSD
Acer Acer –LCD-A231H 5.5 OSD Translation Main menu (NO_EMEA) English ( 英 语 ) 繁體中文 Deutsch ( 德 语 ) Français ( 法 语 ) Español ( 西班牙 语 ) Italiano ( 意大 利语 ) 简 体中文 日本語 Picture 畫面 Bild Image Imagen Immagine 画面 ピクチャー Brightness 亮度 Helligkeit Luminosité Brillo Luminosità 亮 度 輝 度 Contrast 對比 Kontrast Contrast...
Page 24 - 利语; 利语
Acer Acer –LCD-A231H English ( 英 语 ) 繁體中文 Deutsch ( 德 语 ) Français ( 法 语 ) Español ( 西班牙 语 ) Italiano ( 意大 利语 ) 简 体中文 日本語 Auto Config Please Wait 自動調整 請稍待 Autom. Abgl. Bitte warten Autoréglage Veuillez patienter Autoajuste Espere, porfavor Autoregolazione Attendere prego 自动 调 整 请 稍待 自動調整 お待ちください Cab...
Page 25 - 西班牙
Acer Acer –LCD-A231H Blue Синий Blau Bleu Azul Blu Blauw Sininen Auto Config Автонастройка Autom. Abgl. Autoréglage Autoajuste Autoregolazione Autom.configuratie Autom. asetukset OSD OSD OSD Timeout Вр . отобр . Меню OSD-Dauer Délai de l'OSD T. de espera OSD Intervallo OSD Time-out OSD Aikakatkaisu ...
Page 26 - Cabinet Material
Acer Acer –LCD-A231H Graphics Изображение Grafiken Images Gráficos Grafica Grafische Grafiikka Movie Кино Spielfilm Film Película Film Film Elokuva User Пользователь Benutzer Utilisateur Usuario Utente Gebruiker Käyttäjä Adjust/Exit Настроить / Выход Abstimmen/Beenden Ajuster/Quitter Ajuste/salir Re...
Page 27 - Unit Package Specification; Units package; RANDOM VIBRATION SPECTRUM BREAK POINTS
Acer Acer –LCD-A231H 7. Package 7.1 Unit Package Specification 7.1.1 Units package Items Spec Packaging Refer to ME PACKING SPEC Ink COLOR Length 620+/-2.0mm Height 483+/-2.0mm Width 146+/-2.0mm Gross Weight 7.7±0.5kg for INL panel (INL panel weight 3.05Kg) Units per Pallet 59sets/pallet 40’ /20’ Co...
Page 28 - Test; oC; Marking and Identification
Acer Acer –LCD-A231H 7.1.3 Non operation Thermal Shock Test Item Description Temperature -20 0 C to 60 0 C Reset cycles times 25 ºC >60 ºC (10hrs)>25 ºC (2hrs)>-20 ºC (10hrs)>25 ºC 3cycles , every transition time 0.5 hr, Total cycles 3 cycles 7.1.4 Package Drop Drop height (Select drop h...
Page 29 - Flat Panel Specification
Page 69 - Item Part
Acer Acer –LCD-A231H 03 Exploded Diagram 3.1. Screw List Item Part No. Description Qty Fixed T(kg*cm) Remark 1 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 6 6.5 ± 0.5 I/F Board to Chassis*1 Power Board to Chassis*4 2 509000000700R BOLT,#4-40x11.8,Ni ROHS 4 3.75 ± 0.25 D-SUB CON*2 DVI CON*2 3 509212...
Page 72 - 4 Troubleshooting; No Power & Power LED Off
Acer Acer –LCD-A231H 04 Troubleshooting 1 ． No Power & Power LED Off No power Check primary rectifier voltage Check IC802, C804, T801, Check circuit if short Check F801, P801, RT801,D801 Check pin6 of IC802 voltage about 16V CheckC810,D803,C807, Check pin2 of IC802 voltage about 3V Check primary...
Page 73 - DC output voltage is unstable
Acer Acer –LCD-A231H 2 ． DC output voltage is unstable Check the R pin voltage of IC803 Check R832 Check D803,C807,C810 Change Check pin6 of IC802 voltage Check pin3 of IC802 voltage Check R805,R814,R815 END Check the C pin voltage of IC803 Change Unstable power Check sampling Circuit Check R822,R82...
Page 74 - Backlight can’t be turned on
Acer Acer –LCD-A231H 3 ． Backlight can’t be turned on No raster? LED Green? Yes Yes Yes Backlight can’t be turned on. No Check power supply Is there high-level voltage on pin6 of IC501? No Is Ok R505? Check I/F board Yes R505 open No Yes Is there instantaneously pulse wave on pin1, pin16 of IC501 at...
Page 78 - 5 Spare parts List; PARTNAME
Acer Acer –LCD-A231H 05 Spare parts List 8231EY81A120R PARTNAME ACER PART NO. OEM PART NO DESCRIPTION CN MAIN BOARD 55.LNW0J.001 795611300800R PCBA,IF/B(A09,EMEA,W/SPK),LE23ER-812 ROH POWER BOARD 55.LNW0J.002 795611400800R PCBA,PI/B,W/SPK,LE23ER-812 ROHS KEYPAD BOARD 55.LNX0J.001 795691500800R PCBA,...
Page 79 - COVER
Acer Acer –LCD-A231H COVER 60.LNX0J.003 71405E23EY00R ASSY BACK COVER SEC 1A1D LE23EY BASE 60.LNX0J.004 71402E23EY00R ASSY BASE LE23EY STAND UP 42.LNX0J.001 50126E23EY00R STAND UP LE23EY SPEAKER 23.LK60J.001 618100103150R SPEAKER 1.5W 4 Ω 100&120mm R/B/G W/CASE PANEL LK.23006.014 631102230260HA ...
Page 80 - 6 Schematics and Layouts
Acer Acer –LCD-A231H 06 Schematics and Layouts 6.1 IF BD Layout
Page 82 - Keypad BD Layout
Page 83 - IF BOARD schematics and Power Supply circuit
Acer Acer –LCD-A231H 6.4 IF BOARD schematics and Power Supply circuit
Page 86 - POWER Control; POWER Control
5 5 4 4 3 3 2 2 1 1 D D C C B B A A InnoLux Document Number : SIZE : TITLE : DATE : SHEET OF Rev : DRAWN BY : CHECK BY : APPRO BY : V02 6 3 A P236H POWER Control 2010-01-15 InnoLux Document Number : SIZE : TITLE : DATE : SHEET OF Rev : DRAWN BY : CHECK BY : APPRO BY : V02 6 3 A P236H POWER Control 2...
Page 90 - 7 Assembly and disassembly; S1 Release the base from stand.
Acer Acer –LCD-A231H 07 Assembly and disassembly S1 Release the base from stand. S2 Release the stand cover. S3 Screw out the 3 screws in stand.
Page 91 - S4 Take off the stand.
Acer Acer –LCD-A231H S4 Take off the stand. S5 Release the front bezel at 3 sides S6 Turn over the monitor, release the back-cover.
Page 92 - S7 Release the keypad cable and release the keypad board.
Acer Acer –LCD-A231H S7 Release the keypad cable and release the keypad board. S8 Pull out lamp cables and LVDS cable. S9 Release the chassis.
Page 93 - S10 Screw out the 4 bolt screws
Acer Acer –LCD-A231H S10 Screw out the 4 bolt screws S11 Release the 6 screws from interface board and power board. S12 Release the speaker cable.
Page 94 - S13 Take out interface board and power board.
Acer Acer –LCD-A231H S13 Take out interface board and power board. S14 Take out LCD panel.
Page 95 - 8 FW & EDID upgrade procedure; Signal cable; One port of ISP; PC; FW IC
Acer Acer –LCD-A231H 08 FW & EDID upgrade procedure 1. SOP of PCBA ISP Programming (FW TOOL: INL PN 799999942100R/Acer PN 6K.L46VF.001) 1.1 Operational condition: Equipment: PC, ISP card, signal cable and power cable. ESD requirements: antistatic wrists, antistatic gloves(fingers), and connectin...
Page 96 - Secondly; FW BIN file; Software
Acer Acer –LCD-A231H Secondly ﹐ download FW software: first select “READ”, and then load FW software in Rooter (Fig.2). Thirdly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK. Note: if programming fails or success rate ...
Page 99 - EDID Card
Acer Acer –LCD-A231H b.Edid.exe c.A231H model 2. Hardware a. PC （ winXP or win2000 ） 1PCS ； b. Tool （ EDID Card 、 VGA cable & DVI cable) 2.2 Operational steps: 1. First set up Port95nt.exe
Page 100 - Click next button continually then can finish setting.
Acer Acer –LCD-A231H 2. Click next button continually then can finish setting. A : USB interface provide +5V DC power （ No Power is ok ） B : Connect DDC Card and PC with collateral interface ； C :VGA 、 DVI use different cable to link DDC and PC
Page 101 - Collateral printing interface (connect with PC)
Acer Acer –LCD-A231H EDID ISP Card: A ： Collateral printing interface (connect with PC) B : VGA interface (one VGA connect with PC to provide signal for monitor the other one connect with PC VGA interface to write VGA EDID, Write EDID can without providing signal) C : DVI interface (connect with Mon...
Page 103 - Cloose the Model in main menu, and the password is 1234.
Acer Acer –LCD-A231H 3.2 Cloose the Model in main menu, and the password is 1234. A231H
Page 105 - the program can write directly.
Acer Acer –LCD-A231H 3.4 Input S/N in the Blank , eg:ETLA10C109805111D94023 ， the program can write directly. A231H
