Acer A231H Service Manual Download Page 87

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VS3

VS2

OP1

IS1

PWM

IS1

VSEN

IS2

VS4

PWM

VSEN

VS2

VS1

IS2

VS3

DRIV

OP2

VDDA

DRIV

VS1

OP1

VS4

OP2

VDDA

VCC5V

+24V

VCC5V

BRIGHTNESS

+24V

BRIGHTNESS

InnoLux

Document Number :

SIZE :

TITLE :

DATE :

SHEET

Rev :

DRAWN BY :

CHECK BY :

APPRO BY :

V01

P236H

INVERTER SUPPLY

2010-01-15

InnoLux

Document Number :

SIZE :

TITLE :

DATE :

SHEET

Rev :

DRAWN BY :

CHECK BY :

APPRO BY :

V01

P236H

INVERTER SUPPLY

2010-01-15

InnoLux

Document Number :

SIZE :

TITLE :

DATE :

SHEET

Rev :

DRAWN BY :

CHECK BY :

APPRO BY :

V01

P236H

INVERTER SUPPLY

2010-01-15

R511

100k

R511

100k

R520

150R

R520

150R

R512

100k

R512

100k

C521

R525

IC501

INL816

IC501

INL816

DRV1

VDDA

SEL

RT1

PWM

OLP1

OLP2

SSTCMP

GND

DRV2

PID

TIMER

ISEN1

ISEN2

VSEN

R513
30k

R503
180k

C523

D502

BAT54

D502

BAT54

R509

100k

R509

100k

C517

8.2nF/50V

C517

8.2nF/50V

C504
1.0u 0805

C519

8.2nF/50V

C519

8.2nF/50V

D504

BAV70

D504

BAV70

R528

470R

R528

470R

D503

BAV70

D503

BAV70

C520
8.2nF/50V

C509
2.2u

C507
2.2u

R502

10R

R502

10R

CN506

CON 20PIN

CN506

CON 20PIN

GND

VS4

Op1

DRIV

Op2

GND

+25V

DRIV

Vs2

Is1

VS3

Is2

GND

VS1

+5V

on/off

Briness

R531

R506

100k

R506

100k

C502

1u 0805

C502

1u 0805

C532

1000P 0805

C532

1000P 0805

R501
5.1k

R522

470R

R522

470R

R514
30k

R519

220

R519

220

C508
2.2u

R532

C527
NC

R521
NC

R510

100k

R510

100k

D501
5.6V

R505

100k

R505

100k

R527

470R

R527

470R

C518
8.2nF/50V

R515
30k

R507

10R

R507

10R

C503
100p

C526

1.0u 0805

C526

1.0u 0805

C525

0.1uF/50V

C525

0.1uF/50V

U501
AP9971GH

R517

220R

R517

220R

C524
NC

R508

100k

R508

100k

R523

R526

10R

R526

10R

R529

R524

470R

R524

470R

C506
2.2u

C512

47n

C512

47n

C522
NC

R504

270k

R504

270k

R518

150R

R518

150R

R516
30k

U502

AP9575GH

U502

AP9575GH

C505
47n

Summary of Contents for A231H

Page 1: ...Acer Acer LCD A231H Service Manual LCD Monitor Acer A231H ...

Page 2: ...2 06 Schematics and Layouts 43 07 Assembly and Disassembly 46 Appendix User s manual Copyright 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 ...

Page 3: ...lug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the class screen z Do not place heavy objects on the monitor or power cord 2 Product safety notice Many electrical and mechanical parts in this chassis have special safety visual inspe...

Page 4: ...upport HDCP and color management function 1 1 Main Features Features Specifications Maximum resolution 1920 x 1080 60Hz Back light system 4 CCFL Pixel pitch 265 2 um H x 265 2 um V Display area 509 76mm H x 286 74mm V Contrast ratio 1000 1 TYP 80000 1 ACM ON Brightness 250cd m TYP Response time Tr Tf 5ms typ Viewing angle 160 H 160 V TYP Input interface Analog D sub 15 pin Digital Option DVI D 24 ...

Page 5: ...vironmental conditions Operating Specification Low Temperature 0 C Relative Humidity is as low as possible 12 hrs High Temperature 40 C 20 R H 12 hrs High Humidity 32 C 80 R H 12 hrs Altitude 12 000 feet at 25 C hold 3 5 hrs Storage Low Temperature 30 C humidity not controlled High temperature low humidity 65 C 10 R H Test Profile 25 C 50 R H 2hrs 30 C No R H 12hrs 41 C 90 R H 12hrs 65 C 10 R H 12...

Page 6: ...ctrostatic Discharge Requirements 2 4 Reliability Items Condition Spec Note MTBF Operating condition is 25 C 50 000 Hours CCFL Life time Luminance becomes 50 50 000 Hours Typ Note1 Note1 Display an all WHITE field at mid Brightness and Contrast settings Item Condition Spec Contact discharge 4KV Contact discharge 8KV Air discharge 8KV Electrostatic Discharge IEC61000 4 2 EN55024 Air discharge 15KV ...

Page 7: ...ut 500mv Audio 5V output 500mv With system See note 3 25V output 480mv 5V output 100mv Ripple and Noise Audio 5V output 100mv With dummy Load 25V loading 0 3A 1 4A 5V loading 0 75A 1 5A Audio 5V 0A 1 2A Vcc25V 23 2V 28V Vcc5V 4 75V 5 25V Audio 5V 4 95V 5 45V For system active DC Output Voltage 25v loading 0 1A 1 5A 5V loading 0A Vcc25V 23 8V 30V Vcc5V 4 75V 5 25V For power saving or DC off DC outp...

Page 8: ...02 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 8 V off Brightness PWM Duty ACM Off 35 100 Brightness PWM Duty ACM On 3 100 CCFL operating Voltage 875Vrms Typ 7 5mA Typ CCFL Current 8 0mA Max CCFL startup voltage 1840 Vrms 0 C CCFL startup voltage 1 510 Vrms 25 C Operating frequency 40 60 KHz Protect dela...

Page 9: ...20 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 4 White balance The test standard conditions refer to Sec 3 3 Brightness and contrast are under default value Chromaticity Coordinate Mode x y Cool 9300K 0 283 0 030 0 297 0 030 Warm 6500K 0 313 0 030 0 329 0 030...

Page 10: ...nput 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 3HDMI in Option HDMI type A Connector Pin assignment 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 2 1 11 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 2 1 11 Pin Symbol Pin Symbol 1 TMDS Data2 11 Cable detect 2 TMDS Data2 shield 12 TMDS Clock 3...

Page 11: ... TMDS Data 2 17 TMDS Data 0 3 TMDS Data 2 4 shield 18 TMDS Data 0 4 N C 19 TMDS Data 0 5 shield 5 N C 20 N C 6 DDC Clock 21 N C 7 DDC Data 22 Clock shield 8 Analog Vertical Sync 23 Clock 9 TMDS Data 1 24 Clock 10 TMDS Data 1 11 TMDS Data 1 3 shield 12 N C 13 N C 14 5V Power 15 Cable detect 4 5 VGA in 4 5 1 D sub Connector Pin assignment Pin Symbol 1 Red Video 2 Green Video 3 Blue Video 4 N C 5 Cab...

Page 12: ...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: ...37 320 60 000 48 964 N A 1024x768 60Hz 1344x806 48 363 60 004 65 000 24H XGA 1024x768 70Hz 1328x806 56 476 70 069 75 000 24H 1152x864 75Hz 1600x900 67 5 75 108 26H 27H VESA 1280x960 60Hz 1800x1000 60 60 108 N A SXGA 1280x1024 60Hz 1688x1066 63 981 60 020 108 000 25H VESA 1280x720 60Hz 1650x750 44 955 59 940 74 176 N A 1280x800 60Hz 1680x831 49 702 59 810 83 500 28H 29H WXGA 1360x768 60Hz 1792x795 ...

Page 14: ...0 NTSC 480i 16 9 720 x 480 13 50 15 73 60 NTSC 480p 4 3 720 x 480 27 00 31 47 60 NTSC 480p 16 9 720 x 480 27 00 31 47 60 PAL 576i 720 x 576 13 50 15 63 50 PAL 576p 4 3 720 x 576 27 00 31 27 50 PAL 576p 16 9 720 x 576 27 00 31 27 50 720p 1280 x 720 74 25 37 5 50 720p 1280 x 720 74 25 44 96 60 1080i 1920 x 1080 74 25 28 125 50 1080i 1920 x 1080 74 25 33 72 60 1080P 1920 x 1080 148 50 56 250 50 1080P...

Page 15: ... 4 6 AT 1KHz 1Vrms Total harmonic distortion plus noise 10 Po 2 0W Signal to noise ratio dB 40 THD N 5 PWM frequency KHz 200 250 300 Note The low pass RC Filter R 100Ω C 0 047uF for Class D Output Power and THD N Measurement 4 9 DDC data EDID File Format VESA s EDID Standard Version 3 Revision 0 EDID Structure Version 1 Revision 3 EDID Data Table See the attached table for example ...

Page 16: ... 2C 4 45 00 FD 1E 11 00 00 1A 00 00 00 FC 00 50 32 33 5 36 48 0A 20 20 20 20 20 20 20 00 00 00 FD 00 38 6 4C 1F 53 12 00 0A 20 20 20 20 20 20 00 00 00 FF 7 00 30 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 4 9 3 HDMI EDID table For HDMI Module 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 00 00 00 00 1 00 00 01 03 80 33 1D 78 EA 60 85 A6 56 4A 9C 25 2 12 50 54 B3 0C 10 71 4F ...

Page 17: ...Acer Acer LCD A231H 5 25 00 13 2A 21 00 00 9E 01 1D 00 BC 52 D0 1E 20 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 FF ...

Page 18: ...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 7M colors RGB 6 bit Hi_FRC Number of Pixel 1920 H 1080 V Full HD Brightness 250 cd m2 TYP Contrast Ratio 1000 TYP Viewing Angle 160 Horizontal 160 Vertical CR 10 Display Mode Normally White Response Time 5ms TYP ON OFF Surface Treatment Anti...

Page 19: ... menu displays press AUTO to enter the main menu OSD C When OSD displays press MENU to perform function of menu icon that is highlight or enter next level menu A When OSD isn t show on screen press to enter the function menu B When MENU OSD displays press these keys to change the contents of an adjustment item or change an adjustment value C When Function menu displays press to show Audio OSD and ...

Page 20: ... 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 factory mode ...

Page 21: ...nu Pictiure Audio Audio menu Function Menu Input Acer eColor Management empowering technology Standard User mode 77 Text mode 44 Standard mode 77 Graphics mode 97 Brightness 0 100 Movie mode 77 User mode 50 Text mode 50 Standard mode 50 Graphics mode 60 Contrast 0 100 Movie mode 56 H Position 0 100 50 V Position 0 100 50 Focus 0 100 Clock 0 100 50 1 Warm Default Cool Red 0 100 80 Green 0 100 80 Co...

Page 22: ...ish 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 Resolution H Freq V Freq Input Type Info S N Notes 1 Clock default 50 is for Visa timing Others depend on timing ...

Page 23: ... 藍色 Blau Bleu Azul Blu 蓝色青 Auto Config 自動調整 Autom Abgl Autoréglage Autoajuste Autoregolazione 自动调整自動調整 OSD OSD OSD Timeout OSD 顯示時間設定 OSD Dauer Délai de l OSD T de espera OSD Intervallo OSD OSD 显示时间设定 OSD 表示時間設定 Setting 設定 Einstellung Réglages Configuración Impostazione 设置設定 Wide Mode 寬螢幕模式 Vollbild Plein écran Completa Schermo intero 宽屏模式ワイドモード Full 全螢幕 Vollbild Plein écran Completa Pieno ...

Page 24: ...teur Usuario Utente 用户ユーザー Adjust Exit 調整結束 Abstimmen Bee nden Ajuster Quitter Ajuste salir Regola Esci 调节退出調整終了 Select 選擇 Auswahl Sélectionner Seleccionar Seleziona 选取選択 Main menu EMEA English 英语 Russian 俄语 Deutsch 德语 Français 法语 Español 西班牙语 Italiano 意大利语 Dutch 荷兰语 Finnish 芬兰语 Picture Изображ Bild Image Imagen Immagine Beeld Kuva Brightness Яркость Helligkeit Luminosité Brillo Luminosità H...

Page 25: ...g Dépla Mover Muovi Verpl Liiku ON Вкл EIN Allumé ACTIVADO ATTIVA AAN PÄÄLLÄ ON OFF Выкл Aus OffEteinte Apagado Spento Uit Pois päältä Volume Громкость Lautstärke Volume Volumen Volume Volume Äänenvoim Message menu EMEA English 英语 Russian 俄语 Deutsch 德语 Français 法语 Español 西班牙语 Italiano 意大利语 Dutch 荷兰语 Finnish 芬兰语 Auto Config Please Wait Автонастро йка подождите Autom Abgl Bitte warten Autoréglage V...

Page 26: ...anical 6 1 Dimension Dimension Spec Width 553mm Height 409mm W Base 352mm W O Base Depth 172mm W Base 63mm W O Base Monitor Weight 5 5 0 3Kg for INL panel INL panel 3 05Kg Remark If phase in other second panel the Monitor weight 2 45Kg second panel weight 0 3Kg 6 2Cabinet Material Cabinet Material Spec Cabinet Plastic Material ABS HB Front Bezel BLACK Back Cover BLACK Base BLACK Cabinet Texture AC...

Page 27: ... panel the Gross weight 4 65Kg second panel weight 0 3Kg 7 1 2 Unit Packing Vibration Testing with vibration shall be done in each of three mutually perpendicular axes Axes are referenced to the position of system as it normally sits in front of user i e Front to back side to side and top to bottom 7 1 2 1 Random Vibration Items Description Sweep Frequency 1 200Hz Amplitude 1 14 Grms Duration Time...

Page 28: ...ackage Corner Step 2 Edge 3 5 of package Edge Step 3 Edge 2 3 of package Edge Step 4 Edge 2 5 of package Edge Step 5 Face bottom 3 of package Flat Step 6 Face left 4 of package Flat Step 7 Face front 5 of package Flat Step 8 Face right 2 of package Flat Step 9 Face rear 6 of package Flat Step 10 Face Top 1 of package Flat Mechanical and electrical damage should not exist after vibration test and s...

Page 29: ...Acer Acer LCD A231H 02 Flat Panel Specification ...

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Page 69: ... 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 509212608120R SCREW F CROSS T4 8 Zn ROHS 5 8 6 2 3 10 0 5 Hinge to Stand 4 509116610500R SCREW P CROSS M4 10 BLK Zn NYLO K ROHS 3 12 0 5 Hinge to back cover 3 2 LCD Exploded drawing All ...

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Page 72: ...o 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 OVP OLP and secondary feedback OVP circuit END ...

Page 73: ...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 R825 R826 R822 R825 R826 ...

Page 74: ...5 Check I F board Yes R505 open No Yes Is there instantaneously pulse wave on pin1 pin16 of IC501 at the moment of restart No Is Ok IC501 Yes U501 U502 fail No IC501 fail Yes Is ok T501 T501fail Are connected rightly CN501 CN502 CN503 and CN504 No Connecting the output connector again No Check feedback circuit ISEN1 ISEN2 VSEN OLP1 OLP2 Yes END Is there 5Vdc voltage on pin2 of IC501 Yes Yes ...

Page 75: ...Acer Acer LCD P236H 4 Black screen ...

Page 76: ...Acer Acer LCD P236H 5 White Screen ...

Page 77: ...Acer Acer LCD P236H 6 Bad Screen ...

Page 78: ...C 30P 220mm W CORE TASTE CABLE 50 LNW0J 001 430301001890R HRN ASS Y 2x5P to 8P 320mm UL1571 28 Con CABLE 27 LBN0J 001 453070801190R PWRCORD 16A 250V BLK 6FT VDE KTL H05VV F CABLE 50 L63VF 003 453030300120R CABLE AUDIO 1P 6FT BLACK GREEN CP03B06P0 CABLE 50 LBQ0J 001 453010100380R CABLE D SUB 15P MALE 6FT BLACK BLUE ROH CABLE 50 LA10J 003 453030300370R CABLE DVI D 18 1P MALE 6FT BLACK ROHS STAND 60 ...

Page 79: ...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 014 631102230260HA LCP 23 LTM230HT01 A09 A SAMSUNG HF ...

Page 80: ...Acer Acer LCD A231H 06 Schematics and Layouts 6 1 IF BD Layout ...

Page 81: ...Acer Acer LCD A231H 6 2 Power BD Layout ...

Page 82: ...Acer Acer LCD A231H 6 3 Keypad BD Layout ...

Page 83: ...Acer Acer LCD A231H 6 4IF BOARD schematics and Power Supply circuit ...

Page 84: ...2 1K NC R166 1K R111 NC 100K X101 14 31818MHz C171 1000p 50V R157 100 RL111 0 NC R186 NC 30K CN104 2x4P 2 0mm CON HR 200PHD2X05ST 1 2 3 4 5 6 7 8 9 10 FB105 60 R155 100 C153 0 1 16V C148 1u 16V C161 0 1 16V C144 0 1 16V TSUMU58NHJ LF 1 28 25 26 23 27 24 22 32 33 7 31 30 41 43 42 44 51 80 128 127 81 82 83 84 85 86 91 92 93 94 95 96 97 98 99 100 79 78 77 1 11 9 10 12 13 8 15 16 18 19 17 29 52 104 87...

Page 85: ...01 2 3 1 C808 47P 1KV C808 47P 1KV R814 10K R814 10K D807 SRF10 06CT LF D807 SRF10 06CT LF 1 2 3 IC801 LTV817M IC801 LTV817M 3 1 4 2 C820 470u 16V C820 470u 16V RT801 NTC 5R RT801 NTC 5R C818 0 1 50V C818 0 1 50V R816 10 R816 10 C803 0 47 275V C803 0 47 275V F802 5A 125V F802 5A 125V R825 100K 1 R825 100K 1 D801 BL4 06 D801 BL4 06 1 2 4 3 C836 2200p 500V C836 2200p 500V CN801 16P 2 0mm CN801 16P 2...

Page 86: ...WN BY CHECK BY APPRO BY V02 6 3 A P236H POWER Control 2010 01 15 C838 NC C838 NC C810 0 1 50V C810 0 1 50V C812 NC C812 NC R809 680R R809 680R C809 220p 50V C809 220p 50V IC802 LD7575 IC802 LD7575 GND 4 NC 7 HV 8 RT 1 CS 3 VCC 6 OUT 5 COMP 2 R803 NC R803 NC D812 NC D812 NC R813 20 R813 20 CN804 CON8PIN CN804 CON8PIN Gate 1 HV 8 GND 3 FB 4 GND 5 VDD 6 NC 7 Isense 2 C811 1000p 50V C811 1000p 50V R80...

Page 87: ... 0u 0805 C519 8 2nF 50V C519 8 2nF 50V D504 BAV70 D504 BAV70 R528 470R R528 470R D503 BAV70 D503 BAV70 C520 8 2nF 50V C520 8 2nF 50V C509 2 2u C509 2 2u C507 2 2u C507 2 2u R502 10R R502 10R CN506 CON 20PIN CN506 CON 20PIN GND 6 VS4 17 Op1 11 DRIV 7 Op2 15 GND 5 25V 3 25V 4 DRIV 8 Vs2 9 Is1 10 VS3 14 Is2 16 GND 13 VS1 12 5V 18 on off 19 Briness 20 NC 2 NC 1 R531 0 R531 0 R506 100k R506 100k C502 1...

Page 88: ...Y 2010 01 15 C531 NC C531 NC C530 NC C530 NC C514 12p 3KV C514 12p 3KV CN505 CON 20PIN CN505 CON 20PIN GND 6 VS4 17 Op1 11 DRIV 7 Op2 15 GND 5 25V 3 25V 4 DRIV 8 Vs2 9 Is1 10 VS3 14 Is2 16 GND 13 VS1 12 5V 18 on off 19 Briness 20 NC 2 NC 1 CN504 4100 D02 CN504 4100 D02 H 1 L 2 T503 SPW 169 T503 SPW 169 1 2 5 4 T502 SPW 169 T502 SPW 169 1 2 5 4 CN502 4100 D02 CN502 4100 D02 H 1 L 2 C516 12p 3KV C51...

Page 89: ...C709 1000p 50V C709 1000p 50V CN702 2 8P 2 54mm 90 CN702 2 8P 2 54mm 90 AL 9 GND 2 Hp Sp 4 AL 10 EO_R 8 EO_L 6 AR 12 AR 11 5V 1 VOL 5 AGND 3 SHUT 7 LOUT 13 LOUT 15 ROUT 14 ROUT 16 C708 1000p 50V C708 1000p 50V R716 10K R716 10K R713 10K R713 10K R711 100 R711 100 R701 0 NC R701 0 NC Q701 2N4401 Q701 2N4401 2 3 1 R L P701 PHONE_JACK R L P701 PHONE_JACK 2 3 4 5 1 Q702 2N4401 Q702 2N4401 2 3 1 C704 0...

Page 90: ...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: ...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: ...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: ...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: ...Acer Acer LCD A231H S13 Take out interface board and power board S14 Take out LCD panel ...

Page 95: ...s 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 2 Adjust ISP programming Firstly double click ISP_Tool_ V4 4 2 4 exit and click Connect button The ISP tool will connect to monitor automatically and it will show flash IC type automatically Signal...

Page 96: ...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 is not high click Config an d adjust its speed to lower FW BIN file Software Checksum value ...

Page 97: ...Acer Acer LCD A231H in I2C Speed Setting and check Communication Setting If connect port is print port please check port type ...

Page 98: ...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 ...

Page 99: ...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: ... 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: ...ce 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 1Choose File menu in main menu choose Auto Write button click S N blank A B C ...

Page 102: ...Acer Acer LCD A231H A231H ...

Page 103: ...Acer Acer LCD A231H 3 2 Cloose the Model in main menu and the password is 1234 A231H ...

Page 104: ...Acer Acer LCD A231H 3 3 Choose the model A231H_A Update VGA A231H_D Update DVI A231H A231H_D A231H_A ...

Page 105: ...Acer Acer LCD A231H 3 4 Input S N in the Blank eg ETLA10C109805111D94023 the program can write directly A231H ...

Page 106: ...Acer Acer LCD A231H 3 5 After the process is ok the program can check that automatically A231H ...

Page 107: ...Acer Acer LCD A231H 3 6 If write successfully you can see PASS in the right A231H A231H ...

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