Copyright 2010 InnoLux Tech. Corp. Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd. Acer A231H Service Manual...
Acer Acer –LCD-A231H Important Safety Notice 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.
01 Product Specification 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 are on the front of the monitor. The monitors shall automatically to display lower resolution video modes into 1920x1080 full screen display.
Acer Acer –LCD-A231H 1.2 Accessories Audio User’s Quick-start Items Warranty card cable cable cable manual Guide Description 1.8m 1.8m 1.8m Multi Multi Multi O pt io n Operation Specifications The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence.
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Acer Acer –LCD-A231H 2.2 Safety, EMC, Ergonomics and Compatibility Requirements Safety EMC&Safety Ergonomics Windows 95/98/Me/2000/XP/VISTA/7 Compatibility Energy Star 5.0 Power Management 2.3 Electrostatic Discharge Requirements Item Condition Spec Contact discharge: 4KV Electrostatic Contact discharge: 8KV ● IEC61000-4-2(EN55024) Discharge Air discharge...
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Acer Acer –LCD-A231H 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 range...
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Acer Acer –LCD-A231H OTP(Over temperature protection) Fuse protection Table-1 Status H-sync V-sync Video Power Power On active ≤55W Blue blanked < 1W Amber Power Saving blanked < 1W Amber blanked < 1W Amber Power Off < 1W 3.2 Backlight Power Supply...
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Acer Acer –LCD-A231H 3.3 Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. Temperature : 25 ± 5°C Test pattern : white Video Resolution : 1920 x 1080 Video input level : 700 mV ±...
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Acer Acer –LCD-A231H 3.5 Brightness uniformity The test standard conditions refer to Sec 3.3. Min. luminance nine points (backlight Max. luminance nine points (backlight Input / Output Signal Specifications 4.1 AC in AC Input Voltage: 100~240VAC 4.1.1 AC Input Current: 1.2A @100Vac, 0.6A @240Vac 4.1.2...
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Acer Acer –LCD-A231H TMDS Data1- TMDS Data0+ DDC/CEC Ground TMDS Data0 shield +5V Power TMDS Data0- Hot Plug Detect TMDS Clock+ 4.4 DVI-D in DVI-D Connector Pin assignment: Symbol Symbol TMDS Data 2- Hot Plug Detect TMDS Data 2+ TMDS Data 0-...
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Acer Acer –LCD-A231H PC +3.3/+5V Sync. Ground DDC SDA H sync V sync DDC SCL...
Acer Acer –LCD-A231H Signal SPEC: 4.5.2 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 Resolution Resolution Horizontal Vertical Nominal Pixel...
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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 640 x 480p 25.2 31.5 NTSC (480i) 4:3 720 x 480 13.50...
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Acer Acer –LCD-A231H 4.8 Audio output SPEC(For Audio Module) Specification Items TEST CONDITIONS THD+N = 10% AT 1KHz 1Vrms Output power (W) Output impedance (Ω) AT 1KHz 1Vrms 2.0W Total harmonic distortion plus noise THD+N Signal to noise ratio (dB) PWM frequency (KHz) Note: The low pass RC Filter (R=100Ω...
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Acer Acer –LCD-A231H 13 2A 21 00 9E 01 1D 00 BC 52 D0 1E 20 13 2A 21 00 1E 01 1D 80 D0 72 1C 10 2C 25 13 2A 21 00 9E 00 00 FF...
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Acer Acer –LCD-A231H 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...
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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 panel. MT230DW01 Item Unit Conditions Min. Typ. Max. Remark Right [degree] Horizontal Left Viewing Angle CR >= 10...
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Acer Acer –LCD-A231H [POWER] Power on or power off the monitor Hot Key Operation 5.3.2 HOT KEY OPERATION FUNCTION DESCRIPTION e Color AUTO MENU ◄ ► POWER Press [e], and then press [POWER] FACTORY for DC power on. OSD menu will be ●...
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.
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Acer Acer –LCD-A231H Digital HDMI EMEA NO-EMEA English English Russian Deutsch Deutsch Language Français Français English Español Español Italiano Italiano Dutch 简 Finnish Reset Resolution H.Freq Info V.Freq Input Type Notes: 1 Clock default 50 is for Visa timing. Others depend on timing.
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Acer Acer –LCD-A231H 5.5 OSD Translation Main menu (NO_EMEA) English Deutsch Français Español Italiano 简 ( 语) ( 语) ( 语) 语) 利语) Picture Bild Image Imagen Immagine Brightness Helligkeit Luminosité Brillo Luminosità 亮度 度 度 Contrast Kontrast Contraste Contraste Contrasto 对...
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Acer Acer –LCD-A231H English Deutsch Français Español Italiano 简 ( 语) ( 语) ( 语) 语) 利语) Autoréglage Autoajuste Auto Config Autom. Abgl. Autoregolazione 调 Veuillez Espere, Please Wait Bitte warten Attendere prego 请 patienter porfavor Cable Not Leitung nicht Câble non...
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Acer Acer –LCD-A231H Blue Синий Blau Bleu Azul Blauw Sininen Автонастро Autom.conf Autom. Auto Config Autom. Abgl. Autoréglage Autoajuste Autoregolazione йка iguratie asetukset Вр. отобр. T. de espera Time-out OSD Timeout OSD-Dauer Délai de l'OSD Intervallo OSD Aikakatkaisu Меню Setting Настр.
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Acer Acer –LCD-A231H Изображен Graphics Grafiken Images Gráficos Grafica Grafische Grafiikka ие Movie Кино Spielfilm Film Película Film Film Elokuva Пользовате User Benutzer Utilisateur Usuario Utente Gebruiker Käyttäjä ль Настроить Abstimmen/Be Aanpassen/v Adjust/Exit Ajuster/Quitter Ajuste/salir Regola/Esci Säädä/Lopeta /Выход enden erlaten...
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Acer Acer –LCD-A231H 7. Package 7.1 Unit Package Specification 7.1.1 Units package Items Spec Packaging Refer to ME PACKING SPEC 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’...
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Acer Acer –LCD-A231H Test 7.1.3 Non operation Thermal Shock Item Description Temperature C to 60 >60 (10hrs)>25 (2hrs)>-20 (10hrs)>25 ºC ºC ºC ºC ºC Reset cycles times every transition time 0.5 hr, 3cycles , Total cycles 3 cycles 7.1.4 Package Drop...
Acer Acer –LCD-A231H 03 Exploded Diagram 3.1. Screw List Fixed Item Part No. Description Remark T(kg*cm) I/F Board to Chassis*1 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 6.5 0.5 Power Board to Chassis*4 D-SUB CON*2 509000000700R BOLT,#4-40x11.8,Ni ROHS 3.75 0.25 DVI CON*2 509212608120R SCREW,F,CROSS,T4*8,Zn,ROHS(5.8~6.2) Hinge to Stand 10 0.5...
Acer Acer –LCD-A231H 04 Troubleshooting 1 No Power & Power LED Off No power Check circuit if Check primary rectifier Check IC802, voltage short C804, T801, Check F801, P801, RT801,D801 Check pin6 of IC802 CheckC810,D803,C807, voltage about 16V Check pin2 of IC802 voltage...
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Acer Acer –LCD-A231H 2 DC output voltage is unstable Unstable power Check Check sampling R822,R825,R826, Circuit R822,R825,R826, Check the C pin Check the R pin Change voltage of IC803 voltage of IC803 Check R832 Check pin6 of Check D803,C807,C810 IC802 voltage...
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Acer Acer –LCD-A231H 3 Backlight can’t be turned on No raster? LED Green? Backlight can’t be turned on. Is there 5Vdc voltage Check power on pin2 of IC501? supply Is there high-level voltage on Check I/F board Is Ok R505?
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.
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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.
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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.
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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.
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Acer Acer –LCD-A231H S13 Take out interface board and power board. S14 Take out LCD panel.
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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 connecting cable Name of ISP program: ISP_Tool_V4.4.2.4...
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Acer Acer –LCD-A231H Secondly download FW software: first select “READ”, and then load FW software in Rooter (Fig.2). Software Checksum value FW BIN file Thirdly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK.
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Acer Acer –LCD-A231H in “I2C Speed Setting”and check Communication Setting. If connect port is print port, please check port type.
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Acer Acer –LCD-A231H 3. Flow Chart 2. SOP of EDID (EDID TOOL: INL PN 799999942000R/ Acer PN 6K.LBQ0J.001) 2.1 Request of hardware and software: 1. Software a.port95nt.exe...
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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...
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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...
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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 Monitor) 3.