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Acer G185H Service Manual
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Acer G185H Service Manual

Acer G185H Service Manual

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Acer
Acer –LCD-G185H&G195H
Service Manual
LCD Monitor Acer G185H&G195H

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Summary of Contents for Acer G185H

  • Page 1 Acer Acer –LCD-G185H&G195H Service Manual LCD Monitor Acer G185H&G195H...

  • Page 2: Table Of Contents

    Copyright 2006 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 G185H&G195H Service Manual...

  • Page 3: Important Safety Notice

    Acer Acer –LCD-G185H&G195H 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.

  • Page 4: Product Specification

    1. General: Acer G195HQ is designed with LVDS interface and dual (analog and digital signal) 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.
  • Page 5 Acer Acer –LCD-G185H&G195H +25°C/ 50%R.H.(2hrs)-> -30°C/ No R.H.(12hrs).-> +41°C/ 90% Test Profile R.H.(12hrs)->+65°C/ 10% R.H.(12 Hrs)->+25°C/ 50% R.H.(2hr) Max. Wet Bulb Temp 39°C Altitude 40,000 feet at -30 °C (hold 1 hr) 2.2 Safety, EMC, Ergonomics and Compatibility Requirements Safety EMC&Safety...
  • Page 6 Acer Acer –LCD-G185H&G195H AC Input Current 100Vac 1.2A(max) 240Vac 0.6A(max) AC Frequency Range 100Vac 50Hz – 60Hz 240Vac Inrush Current 120Vac,cold star,0°C 30A (max) 240Vac,cold star,0°C 60A(max) DC output full loading ≥75% Regulator Efficiency Ripple and Noise +14.2V output <1000mv +5.2Vcc output...
  • Page 7 Acer Acer –LCD-G185H&G195H 8.0mA (Max.) CCFL startup voltage ≧1650 Vrms (0˚C) Operating frequency 40~80 KHz Protect delay time > 1 second Lamp 2 CCFL Remark: If phase in other second panel, Panel general specifications pls refer to the panel spec 3.3 Brightness output...
  • Page 8 Acer Acer –LCD-G185H&G195H 4.1 Video signals Items Condition Specification Analog RGB signal Input impedance = 75 Ohm 0.7Vp-p Input impedance ≧ 1k Ohm Sync TTL level, Separate H/V-sync(+/-) 4.2 Signal Timing Through D-SUB/DVI connectors, this unit can support F = 30~80 KHz, Fv=55~75Hz, Modes details as below:...
  • Page 9 Acer Acer –LCD-G185H&G195H G195HQ DVI EDID table G185H VGA EDID table G185H DVI EDID table...
  • Page 10 Acer Acer –LCD-G185H&G195H 4.5 Audio signal Specification Items TEST CONDITIONS Frequency response range(Hz) Signal to noise ratio(dB) AT 1KHz 1Vrms Output power(W) THD+N 5. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted.
  • Page 11 “ACER e Color Management” and “User” to instead “Contrast” and “Brightness” separately. When press “ACER e Color Management” to show “e Color OSD”, and press “User” to show OSD interface before. The translations of “ACER e [MENU] Color Management” and “User” are always English.
  • Page 12 Acer Acer –LCD-G185H&G195H Movie mode User mode Text mode Brightness 0 ~ 100 Standard mode Graphics mode Movie mode Focus 0 ~ 100 Depend on each timing Image Clock 0 ~ 100 50 ○ H. Position 0 ~ 100 Position V.
  • Page 13 Acer Acer –LCD-G185H&G195H Volume Notes; ○ Clock default 50 is for Visa timing. Others depend on timing. 5.4 OSD Translation NO_EMEA 1.English 2.Français 3.Deutsch 4.Español 5.Italiano 6.日本語 7.繁體中文 8.简体中文 (英语) (法语) (德语) (西班牙语) (意大利语) 入カはサポー Fréquences Frequenza 输入 Input Not...
  • Page 14 Acer Acer –LCD-G185H&G195H 繁體中文 繁體中文 繁體中文 繁體中文 繁體中文 繁體中文 繁體中文 繁體中文 恢复出厂模 Reset Restaurer cksetzen Reiniciar Resetare ﾘセット 恢復出廠模式 Ü 式 Exit Quitter Beenden Salida Uscita 終了 結束調整 退出菜单 Input source Input source Input source Input source Input source Input source...
  • Page 15 Acer Acer –LCD-G185H&G195H Rouge Rojo Rossa Rood Красный Punainen Green Vert Verde Verde Groen Зеленый Vihreä Ü Blue Bleu Blau Azul Blauw Синий Sininen H. Position H. Position H. Position H. Posicion O.Posizione H.Positie Полож. по гориз. Vaakasi jainti V.Position V.Position...
  • Page 16 Acer Acer –LCD-G185H&G195H Graphics Images Grafiken Gráficos Grafica Grafische Изображение Grafiikka Movie Film Spielfilm Película Film Film Кино Elokuva AUTO: AUTO: AUTO: AUTO: AUTO: AUTO: AUTO: AUTO: Настроить Abstimmen/Be Aanpasse Säädä/Lopet Adjust/Exit Ajuster/Quitter Ajuste/salir Regola/Esci /Выход enden n/verlaten ◄ ►...
  • Page 17 Acer Acer –LCD-G185H&G195H 7.1 Unit Package Specification 7.1.1 Units package Items Spec Packaging Corrugated paper w/ C-flute paper carton The ink shall not rub off after a suitable drying time Shipping Carton Type One Piece Construction Shipping Carton Handholds 504±2.0 mm Length 394±3.0mm...
  • Page 18 The approval marking is required by the countries of sales destination. Inserted Materials Remark User’s manual in CD Format It should be compliance with Acer’s style. Warranty Card or sticker or the others Based on region Protection Film Based on shipping region...
  • Page 19 Acer Acer –LCD-G185H&G195H 10. SOP of PCBA ISP Programming -----Manufacturer of Scaler is Mstar Manufacturer of FW is SST/PMC 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_v3.7.5.3...
  • Page 20 Acer Acer –LCD-G185H&G195H Adjust ISP programming Firstly, double click ISP_Tool_v3.7.5 EXEI and open ISP Program, then select “Device”, next select manufacturer Model of FW IC, which should be correspondent with that of PCBA FW IC. Double click Figure One...
  • Page 21 Acer Acer –LCD-G185H&G195H Secondly, download FW software: first select “READ”, and then load FW software in Rooter (Figure.2)
  • Page 22 Acer Acer –LCD-G185H&G195H Thirdly, select”Connect” and enter ISP MODE as in the following Figure 3.
  • Page 23 Acer Acer –LCD-G185H&G195H Fourthly, 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” and adjust its speed in...
  • Page 24 Acer Acer –LCD-G185H&G195H...

  • Page 26: Flat Panel Specification

    Acer Acer –LCD-G185H&G195H 02. Flat Panel Specification...
  • Page 27 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 4/23 A. General specification Item Specification Remark 1366(H) X 768(V), WXGA Resolution Display resolution (pixel) 409.8(H) X 230.4(V) Active area (mm) 18.5 inches diagonal Screen size (inch) 0.3(H) X 0.3(V) Pixel pitch (mm) R, G, B vertical stripe...
  • Page 28 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 5/23 B. Electrical specifications 1.Pin assignment Connector JAE FI-XB30SSL-HF15 or mechanical interface equivalent connector.
  • Page 29 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 6/23 Rear view of LCM...
  • Page 30 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 7/23 2. Absolute maximum ratings Values Unit Parameter Symbol Remark Typ. Min. Max. -0.3 Power voltage At 25°C -0.3 Input signal voltage At 25°C Operating temperature °C Note 1 Storage temperature...
  • Page 31 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 8/23 3. Electrical characteristics a. Typical operating conditions Item Symbol Min. Typ. Max. Unit Remark Input Voltage 0.15 Permissive Power Input Ripple Input Current Black 1000 Note 1 White Note 2...
  • Page 32 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 9/23 Note 4 : test condition :‘ µ (1) V = 5 V, V rising time = 470 s ± 10% (2) Pattern: Mosaic pattern μ s ±...
  • Page 33 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 10/23 Note 6 : Power on sequence for LCD V Panel Power Supply V Interface Valid Interface Data Signals Backlight Power Supply Parameter Value Unit 1000...
  • Page 34 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 11/23 b. Display color vs. input data signals The brightness of each primary color (red, green and blue) is based on the 8-bit gray scale data input for the color;...
  • Page 35 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 12/23 c. Input signal timing Support Input Timing Table Item Description Min. Typ. Max. Unit Clock period 10.5 13.2 15.9 Dclk frequency 62.9 75.4 95.6 V total line number V_TOTAL H_TOTAL －...
  • Page 36 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 13/23 d. Display Position D(1, 1) D(2, 1) …… D(683, 1) …… D(1365, 1) D(1366, 1) D(1, 2) D(2, 2) …… D(683, 2) …… D(1365, 2) D(1366, 2) ……...
  • Page 37 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 14/23 Note 4: Test equipment: AS-114B Note 5: The voltage shown above should be applied to the lamp for more than 1 second after startup. Otherwise, the lamp may not be turned on normally. Note 6: Inverter should provide more than min.
  • Page 38 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 15/23 C. Optical specifications Specification Item Symbol Condition Unit Remark Min. Typ. Max. Response time Note 4 ∘ θ Tr+Tf ∘ θ 1000 Contrast ratio Note 3,5 CR≧10 Viewing angle CR≧5...
  • Page 39 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 16/23 "Black" "White" "White" 100% Note 5: Definition of contrast ratio: Contrast ratio is calculated by the following formula. Brightness on the "white" state Contrast ratio (CR)= Brightness on the "black"...
  • Page 40 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 17/23 Note 9: A’ B’ 127 gray level 127 gray level 0 gray level l / L x 100%= 2% max., L and L are brightness at location A and A’ A’...
  • Page 41 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 18/23 D. Reliability test items Test Item Test Condition Judgment Remark 60°C, 240Hrs High temperature storage Note 1 Note 2 -20°C, 240Hrs Low temperature storage Note 1 Note 2 High temperature &...
  • Page 42 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 19/23 E. Safety (1) Sharp Edge Requirements There will be no sharp edges or corners on the display assembly that could cause injury. (2) Materials a. Toxicity There will be no carcinogenic materials used anywhere in the display module.
  • Page 43 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 20/23 H. Label (1) Module Label 73 mm MT185GW01 AM1850001 MADE IN XXX ' - Z '- Z '- Z ' -Z ' -Z (a) Model Number: MT185GW01 (b) Version: V.0 (c) Serial ID I: Z Serial No...
  • Page 44 M T 1 8 5 G W 0 1 V. 0 SPEC NO. PAGE 21/23 (2) Carton Label INNOLUX DISPLAY BOX ID : Model No. MT185GW01 AM1850001 Quantity : 7 PCS MFG Date: 20XX/XX/XX Made in XXX 100 mm (a) Model Number: MT185GW01 (b) Version: V.0 (c) Packing quantity: 7 pcs (d) Serial ID:...

  • Page 47: Exploded Diagram

    Acer Acer –LCD-G185H&G195H 03 Exploded Diagram 3.1 G185H&G195H_SCREW_LIST Fixed Item Part No. Description T(kg*cm) Remark I/F Board to Chassis*1 509146306 SCREW,P,CROSS,W/WAS, Power Board to 200R M3*6,Zn-Cc 5.0±0.5 Chassis*4 509000000 D-SUB CON*2 700R BOLT,#4-40x11.8,Ni ROHS 4.0±0.5 DVI CON*2 509412610 SCREW,B,CROSS,B.T-4*10, 500R BLK, ROHS 6.5±0.5...

  • Page 49: Troubleshooting

    Acer Acer –LCD-G185H&G195H 04 Troubleshooting 4.1 Black Sreen...
  • Page 50 Acer Acer –LCD-G185H&G195H 4.2 White Screen...
  • Page 51 Acer Acer –LCD-G185H&G195H 4.3 Bad Sreen...
  • Page 52 4.4 Inverter trouble shooting Backlight can’t be turned on No raster? LED Green? Backlight can’t be turned on. Is there 14Vdc voltage on Check power pin9 of IC501? supply Is there high-level voltage on Check I/F board Is Ok R502? pin4 of IC501? R502 open Are connected rightly...
  • Page 53 4.5 Power trouble shooting 4.5.1No Power & LED Off No power Check primary Check circuit if Check IC802, rectifier voltage short C804, T801, Check F801, P801, RT,801,D801 Check pin7 of IC802 CheckC810,D803,C807, voltage about 16V Check pin2 of IC802 voltage Check primary OVP, OLP about 3V and secondary...
  • Page 54 4.5.2. Unstable Power Unstable power Check sampling Check R811, Circuit R818, R810, R811, R818, R810, Check the C pin voltage Change IC803 Check the R pin IC803 if 3V voltage of IC803 Check SCREW4*8 *2 Check pin6 of IC802 Check D806 , C815 is short voltage is 16V ChangeD803 Change R803, R 807...
  • Page 55 PARTN ACER PART 818AN61A1E0R OEM PART NO DESCRIPTION POWER 55.LK30J.002 794051400600R PCBA,PI/B,W/SPK,LE18AN-612 ROHS BOARD KEYPAD 55.LK60J.003 794041500000R PCBA,KEYPAD BOARD,LE23AK-612 ROHS BOARD MAIN 55.LK30J.001 794051300600R PCBA,IF/B(V0,EMEA,W/SPK),LE18AN-612 ROHS BOARD 50.LEH0J.002 430303001970R HRN LVDS FFC 30P 147MM CABLE CABLE 50.LK30J.001 430300803760R HRN ASS'Y 280mm 2x4P TO 8P UL1571#28 Roh CABLE 27.LBN0J.001 453070801190R PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F...
  • Page 56 BACKCO 60.LK30J.002 71405E18AN03R ASSY,BACK COVER,W/DVI,SPK,INL,LE18AN BEZEL 60.LK30J.001 71403E18AN01R ASSY,BEZEL,INL,G195HQ,LE18AN STAND 60.LK30J.003 71401E18AN00R ASSY,STAND,LE18AN BASE 60.LK30J.004 71402E18AN00R ASSY,BASE,LE18AN SPEAKE 23.LK30J.001 618100100180R SPEAKER 1W 8Ω 260mm,R/B/G W/CASE PANEL LK.1800N.001 631102093471H LCP 18.5"MT185GW01-V0-G1,AM1850001031(IN...

  • Page 57: Schematics And Layouts

    Acer Acer –LCD-G185H&G195H 06 Schematics and Layouts 6.1 IF BD Layout...
  • Page 58 Acer Acer –LCD-G185H&G195H 6.2 Power BD Layout...
  • Page 59 Acer Acer –LCD-G185H&G195H...
  • Page 60 Acer Acer –LCD-G185H&G195H 6.3 Keypad BD Layout...
  • Page 61 Acer Acer –LCD-G185H&G195H 6.5 Switching Mode Power Supply circuit...
  • Page 62 VGA5V D107 VCC4.5V BAT750-LF/NC DVI5V R173 0/NC R0805 Note 2 Note 1 Note 3 D101 CN101 U101 U102 SSM24APT/NC VCC5V AP1084K33LA LD1117AL-1.8V 8P 2.0mm VCC5V +3.3V +3.3V +1.8V DIO--SMA VOUT VOUT +3.3V +1.8V R101 CCFL_ON/OFF C101 C104 100u/16V R0805 0.1/16V C102 C105 C106...
  • Page 63 CN102 Note 2 DZ11AA1-H5W6-4F RB101 R114 75 1% C113 0.047u/16V RED+ R0603 RB102 R115 75 1% C114 0.047u/16V GREEN+ R0603 RB103 R116 75 1% C115 0.047u/16V BLUE+ R0603 VGA5V Note 1 C116 C117 C118 10p/50V/NC 10p/50V/NC 10p/50V/NC R122 75 1% C119 0.047u/16V RED- R123...
  • Page 64 CN201 DVI-D_CON VCC5V DVI5V DVI_RX2- R201 Note 1 RX2- RX2- DVI_RX2+ R202 RX2+ RX2+ DVI_RX1- R203 R215 RX1- D201 RX1- DVI_RX1+ R204 0/NC C201 BAV70 RX1+ RX1+ 0.1/16V DVI_RX0- R205 RX0- RX0- DVI_RX0+ R206 RX0+ RX0+ R211 R212 R213 DVI_RXC+ R207 U201 RXC+...
  • Page 65 VDDP_33 +3.3V Note 1 AVDD_33 FB102 +3.3V VCC5V 60Ω VDDP_33 AVDD_33 VDDC_18 AVDD_18 C150 22u/16V C166 0.1/16V/NC RED+ VDDC_18 AVDD_18 RIN0P +1.8V VCC5V_DET R182 20K/NC RED- RIN0M GPIO_P00/SAR0/GPIO_P17/SAR0 R154 FB105 GREEN+ GIN0P GPIO_P01/SAR1/GPIO_P00/SAR1 ADC_KEY1 R155 GREEN- GIN0M GPIO_P02/SAR2/GPIO_P01/SAR2 ADC_KEY2 60Ω R159 C152 0.047u/16V SOGIN0...

  • Page 68: Assembly And Disassembly

    Assembly and Disassembly Use a screwdriver to unscrew the 4 S1: Disassemble the hinge cover. screws to release the stand. S3: Disassemble the stand from the back cover. Use a screwdriver to S4:put the dissemble monitor on the desk unscrew the screw to release the back cover.
  • Page 69 Turn over the LCD monitor( screen facing down), Turn over the LCD monitor( screen facing up) then dissemble the back from the front bezel. Wedge your finger between the front bezel and the panel, And then pry the front bezel to disengage the locking mechanism.
  • Page 70 S13 Dissemble the panel from the S12: Dissemble the chassis from the front bezel. front bezel. disengage the locking mechanism. NOTE: locking mechanism...
  • Page 71 Use a screwdriver to unscrew the release the power board and main board from screws to release the main board. the chassis. release the speaker cable from the power board.
  • Page 72 S10: Release the LVDS cable from the panel S8: Release the cable between and the main board. Release the aluminum foil the keypad and the main board. on the LVDS. S11: Release the aluminum foil from the panel. S9: Release the CCFL cable from the panel and the power board.
  • Page 73 Use a screwdriver to unscrew the release the power board and main board from screws to release the main board. the chassis. release the speaker cable from the power board.

This manual is also suitable for:

G195h