Car Video System User Manual

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Acer Acer –LCD-A231H

Service Manual

LCD Monitor Acer A231H

Summary of content (107 pages)

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Acer Acer –LCD-A231H Service Manual LCD Monitor Acer A231H
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1 Table of Contents Important Safety Notice .........................................................................................02 01 Product Specification ..........................................................................................03 02 Flat Panel Specification .......................................................................................15 03 Exploded Diagram ..............................................................................................
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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: This monitor should be operated only at the correct power sources indicated on the label on the rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power Company.
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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 are on the front of the monitor. The monitors shall automatically to display lower resolution video modes into 1920x1080 full screen display. The image can be adjusted through OSD control.
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Acer Acer –LCD-A231H 1.2 Accessories Items VGA cable DVI cable Audio cable User’s manual Warranty card Quick-start Guide Description 1.8m 1.8m 1.8m Multi Multi Multi O pt io n ● ● ● ● ● ● 2. 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. 2.
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Acer Acer –LCD-A231H 2.2 Safety, EMC, Ergonomics and Compatibility Requirements EMC Safety EMC&Safety Ergonomics Compatibility Power Management Windows 95/98/Me/2000/XP/VISTA/7 Energy Star 5.0 2.3 Electrostatic Discharge Requirements Item Electrostatic Discharge Condition Spec Contact discharge: 4KV IEC61000-4-2(EN55024) Contact discharge: 8KV Air discharge : 8KV Air discharge : 15KV 2.
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Acer Acer –LCD-A231H 3. Electrical and Optical Characteristics and Performance 3.1 Main Power Supply 3.1.1 Input characteristics Items Condition Spec AC Input Voltage range Universal input full range 90~264Vac AC Input Voltage rating Universal input full range 100~240Vac AC input frequency range 90~264Vac 47~63Hz AC input frequency rating 100~240Vac 50~60Hz AC Input Current 100Vac 1.5A(max) 240Vac 0.
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Acer Acer –LCD-A231H OTP(Over temperature protection) Fuse protection Table-1 Status H-sync Power On Power Saving Power Off V-sync Video Power on on active ≤55W Blue off on blanked < 1W Amber on off blanked < 1W Amber off off blanked < 1W Amber -- -- -- < 1W Off 3.2 Backlight Power Supply Panel: LTM230HT02 Items Specification Lamp 4 CCFL Input Voltage 23.8---28V Input current 1.2A (Typ.), 1.4A (Max.) On/Off switch level 3.6V≧V on≧ 2.0 V (on) -0.3v ≤ V off ≤ 0.
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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 ± 2% Warm-up time : 30 minutes Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall BL ≥ 200 cd/m2 . 3.
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Acer Acer –LCD-A231H 3.5 Brightness uniformity The test standard conditions refer to Sec 3.3. Min. luminance of nine points (backlight) ≥75% Max. luminance of nine points (backlight) 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 @100Vac, 0.6A @240Vac 4.1.3 AC Frequency Range: 50~60Hz 4.2 Audio in (Option) 4.2.1 Input impedance ﹕ ≧ 10K ohm 4.2.2 Frequency response range ﹕200Hz ~ 20kHz 4.
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Acer Acer –LCD-A231H 6 7 8 9 10 TMDS Data1TMDS Data0+ TMDS Data0 shield TMDS Data0TMDS Clock+ 16 17 18 19 SDA DDC/CEC Ground +5V Power Hot Plug Detect 4.
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Acer Acer –LCD-A231H 9 10 11 12 13 14 15 PC +3.3/+5V Sync.
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Acer 4.5.2 Acer –LCD-A231H Signal SPEC: Items Analog RGB signal Sync H-Sync Frequency V-Sync Frequency Condition Input impedance =75 Ohm Input impedance ≧1k Ohm Specification 0.7Vp-p TTL level, Separate H/V-sync(+/-) 31K~83KHz 56~76Hz 4.6 Timing table Mode MAC VESA SVGA XGA VESA SXGA VESA WXGA WXGA+ WSXGA+ UXGA Note: Resolution (active dot) Resolution Horizontal Vertical (total dot) Frequency (KHz) Frequency (Hz) Nominal Pixel Clock (MHz) Write in EDID 640x480@60Hz 640x480@72Hz 640x480@66.
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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 VGA NTSC (480i) 4:3 NTSC (480i) 16:9 NTSC (480p) 4:3 NTSC (480p) 16:9 PAL (576i) PAL (576p) 4:3 PAL (576p) 16:9 720p 720p 1080i 1080i 1080P 1080P 640 x 480p 720 x 480 720 x 480 720 x 480 720 x 480 720 x 576 720 x 576 720 x 576 1280 x 720 1280 x 720 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 25.2 13.50 13.50 27.00 27.00 13.50 27.
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Acer Acer –LCD-A231H 4.8 Audio output SPEC(For Audio Module) Specification Items TEST CONDITIONS Min TYP MAX 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% Signal to noise ratio (dB) 40 --- --- PWM frequency (KHz) 200 250 300 Po≦ 2.0W THD+N≦ 5% Note: The low pass RC Filter (R=100Ω / C=0.047uF) for Class-D Output Power and THD+N Measurement 4.
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Acer 4.9.1 Acer –LCD-A231H VGA EDID table 0 4.9.
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Acer Acer –LCD-A231H 5 25 00 13 2A 21 00 00 9E 01 1D 00 BC 52 D0 1E 6 B8 28 55 40 13 2A 21 00 00 1E 01 1D 80 D0 72 1C 7 16 20 10 2C 25 80 13 2A 21 00 00 9E 00 00 00 20 FF
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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 the specified modes 5.1 Panel general specifications Item Describe Supplier SEC Model name LTM230HT02 Display Area(mm) 509.76× 286.74 Pixel Pitch(mm) 0.2655(H) ×0.2655(V) Display Colors 16.
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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 MT230DW01 panel.
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Acer Acer –LCD-A231H [POWER] Power on or power off the monitor 5.3.2 Hot Key Operation HOT KEY OPERATION FUNCTION FACTORY MODE e Color AUTO MENU ◄ ► POWER ● ON DESCRIPTION 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 factory mode.
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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 Language Info 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 --- --- Finnish 日本語 --- --- English Reset --- --- --- --- Resolution --- --- --- --- H.Freq --- --- --- --- V.
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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 Contraste Contraste Contrasto 对比度コントラスト H.Position 水平位置 H.Position H.Position H.Posicion O.Posizione 水平位置水平位置 V.Position 垂直位置 V.Position V.Position V.Posicion V.
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Acer English (英语) Acer –LCD-A231H 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.
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Acer Blue Auto Config Acer –LCD-A231H Синий Blau Автонастро Autom. Abgl. йка Bleu Azul Blu Autoréglage Autoajuste Autoregolazione Intervallo OSD OSD OSD OSD Timeout Вр. отобр. Меню OSD-Dauer Délai de l'OSD T. de espera OSD Setting Настр. Einstellung Réglages Wide Mode Широкоэк.р Bildformate еж. Full Полное Aspect Aspect Input Blauw Sininen Autom.conf Autom.
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Acer Acer –LCD-A231H Graphics Изображен Grafiken ие Images Gráficos Grafica Grafische Grafiikka Movie Кино Film Película Film Film Elokuva Utente Gebruiker Käyttäjä Regola/Esci Aanpassen/v Säädä/Lopeta erlaten Seleziona Selecteren Spielfilm Пользовате Benutzer Utilisateur Usuario ль Настроить Abstimmen/Be Ajuster/Quitter Ajuste/salir /Выход enden Auswahl Выбор Sélectionner Seleccionar User Adjust/Exit Select 6. Mechanical 6.
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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 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’ Container Loading, Palletized 1180sets/590sets Remark: If phase in other second panel, the Gross weight =4.65Kg+second panel weight ±0.3Kg 7.1.
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Acer Acer –LCD-A231H 7.1.3 7.1.4 Non operation Thermal Shock Test Item Description Temperature -200C to 600C Reset cycles times 25ºC>60ºC (10hrs)>25ºC (2hrs)>-20ºC (10hrs)>25ºC 3cycles ,every transition time 0.5 hr, Total cycles 3 cycles Package Drop Drop height (Select drop height according to the gross weight refer to the table at below) 1.0
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Acer Acer –LCD-A231H 02.
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Acer Acer –LCD-A231H 03 Exploded Diagram 3.1. Screw List Item Part No. Description 1 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc 2 509000000700R 3 509212608120R 4 509116610500R Qty Fixed T(kg*cm) Remark I/F Board to Chassis*1 6 6.5±0.5 BOLT,#4-40x11.8,Ni ROHS 4 3.75±0.25 SCREW,F,CROSS,T4*8,Zn,ROHS(5.8~6.2) 3 10±0.5 Hinge to Stand 3 12±0.5 Hinge to back-cover SCREW,P,CROSS,M4*10,BLK-Zn(NYLO K),ROHS 3.2.
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Acer Acer –LCD-A231H 04 Troubleshooting 1．No Power & Power LED Off No power Check primary rectifier voltage Check circuit if short Check IC802, C804, T801, Check F801, P801, RT801,D801 Check pin6 of IC802 CheckC810,D803,C807, voltage about 16V Check pin2 of IC802 voltage Check primary OVP, OLP and secondary about 3V feedback, OVP circuit END
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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 R pin Check the C pin voltage of IC803 voltage of IC803 Check R832 Check pin6 of Check D803,C807,C810 IC802 voltage Change Check R805,R814,R815 Check pin3 of IC802 voltage END Change
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Acer Acer –LCD-A231H 3．Backlight can’t be turned on No raster? Yes LED Green? Yes Backlight can’t be turned on.
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Acer Acer –LCD-A231H 05 Spare parts List PARTNAME ACER PART NO. OEM PART NO DESCRIPTION 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,KEYPAD/B,LE23EY-812 ROHS LVDS CABLE 50.LK60J.002 430303003160R HRN LVDS FFC 30P 220mm W/CORE＆TASTE CABLE 50.LNW0J.001 430301001890R HRN ASS'Y 2x5P to 8P 320mm UL1571#28 Con CABLE 27.LBN0J.
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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 4Ω 100&120mm R/B/G W/CASE PANEL LK.23006.
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Acer Acer –LCD-A231H 06 Schematics and Layouts 6.
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5 VDDP_33 +3.3V 4 AVDD_33 3 2 1 AVDD_33 VDDC_18 +3.3V VDDP_33 AVDD_18 3 RED+ 3 RED3 GREEN+ 3 GREEN3 SOG 3 BLUE+ 3 BLUE3 HSYNC 3 VSYNC 3 DDC_SDA_VGA 3 DDC_SCL_VGA GND VCC5V 2 1 LED_B_C R162 1K/NC 3 R159 9 10 12 13 15 16 18 19 5 6 4 RX2+ 4 RX24 RX1+ 4 RX14 Rx0+ 4 RX04 RXC+ 4 RXC4 DDC_SDA_DVI 4 DDC_SCL_DVI R161 NC/0 Q106 PMBT3906/NC 28 27 25 24 470 C152 0.
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3 2 R827 0 C805 2200p/400V T801 SPW-101 1 D 14 D801 1 + BL4-06 + 3 R805 68K 2W C804 150u/450V ZD803 P6KE150A 13 C806 4700p/400V C815 330p/500V D804 SF50-04F69-LF D805 SF50-04F69-LF D806 SF50-04F69-LF D802 MUR1100ERL 10 - 4 27V + +24V 3,4 Q801 2N4401 2 + C839 C830 C818 270u/50V 270u/50V 0.
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5 4 3 2 1 R849 NC R850 NC D D R808 33K CN804 C810 0.
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5 4 3 2 C509 2.2u +24V R501 5.1k C527 NC C508 2.2u 3 D501 5.6V C532 1000P 0805 1 U502 AP9575GH C507 2.2u 2 0 DRIV 2 C512 47n 1 U501 AP9971GH C506 2.
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5 4 3 2 1 T501 SPW-169 1 1 5 D OP12 C528 NC 2 CN505 C NC NC +25V +25V GND GND DRIV DRIV Vs2 Is1 Op1 VS1 GND VS3 Op2 Is2 VS4 +5V on/off Briness 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 4 C513 12p/3KV H L CN501 4100-D02 VS1 +25V T502 SPW-169 1 VS2 IS1 OP1 VS1 1 5 C529 NC 2 VS3 OP2 IS2 VS4 IS1 2 C514 12p/3KV 4 H L CN502 4100-D02 VS2 0 T503 SPW-169 + C501 VCC5V ON/OFF Briness 270u/50V 1 1 5 C530 NC CON 20PIN 0 2 4 OP2 2 C515 12p/3KV H L CN503 4100-D02 VS3
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5 4 3 2 1 R712 R713 R714 R715 10K 10K 10K C708 C709 1000p/50V 1000p/50V C704 0.1/50V LI AR LI R702 0/NC AL 2 AR 4 B IN/OUT B OUT/IN 3 AL 9 C OUT/IN D IN/OUT D OUT/IN 10 R719 C IN/OUT 11 CN704 13 Control A Control D 12 5 Control B Control C 6 VSS 7 14 10K 0/NC A OUT/IN C706 0.1/50V 10K R701 A IN/OUT 8 10K RI D U702 1 C705 0.1/50V R716 2 HDMI_AUDIO_L RI R718 2 HDMI_AUDIO_R C703 0.
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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 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 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 Manufacture of FW IC：PMC/SST/MX 1.2 Operational steps: 1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.
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Acer Secondly﹐download FW software: (Fig.2). Acer –LCD-A231H first select “READ”, and then load FW software in Rooter 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.
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Acer 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.
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Acer 2. Click next button continually then can finish setting.
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Acer Acer –LCD-A231H EDID ISP Card: C A B 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. Write EDID Process： 3.1 Choose File menu in main menu ，choose Auto Write button，click S/N blank .
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Acer Acer –LCD-A231H A231H
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Acer Acer –LCD-A231H 3.2 Cloose the Model in main menu, and the password is 1234.
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Acer Acer –LCD-A231H 3.3 Choose the model, A231H_A(Update VGA) ,A231H_D(Update DVI) .
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Acer Acer –LCD-A231H 3.4 Input S/N in the Blank , eg:ETLA10C109805111D94023，the program can write directly.
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Acer Acer –LCD-A231H 3.
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Acer Acer –LCD-A231H 3.