hit counter script
Download
Share
Print this page
Acer G195W Service Manual
  1. Manuals
  2. Brands
  3. Acer Manuals
  4. Monitor
  5. G195W
  6. Service manual
Acer G195W Service Manual

Acer G195W Service Manual

Hide thumbs Also See for G195W:

Advertisement

Quick Links

Download this manual
Acer
Acer –LCD-G195W
Service Manual
LCD Monitor Acer G195W
- 0 -

Advertisement

loading

Related Manuals for Acer G195W

Summary of Contents for Acer G195W

  • Page 1 Acer Acer –LCD-G195W Service Manual LCD Monitor Acer G195W - 0 -...

  • 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 G195W Service Manual...

  • Page 3: Important Safety Notice

    Acer Acer –LCD-G195W 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

    01 Product Specification General: G195W series LCD monitor is designed with a wide screen 19” WXGA+ TFT LCD panel, LVDS interface, analog RGB signal input and DVI-D signal input .It featured with embedded universal AC power supply. This monitor can support maximum resolution up to 1440x900@60Hz.
  • Page 5 Acer Acer –LCD-G195W Altitude 12,000 feet at 25°C (hold 3.5 hrs) Storage -30°C / humidity not controlled Low Temperature High temperature &low humidity +65°C/ 10% R.H. +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.
  • Page 6 Acer Acer –LCD-G195W 2.3 Electrostatic Discharge Requirements The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of Electrostatic Discharge and meet the standard of IEC61000-4-2(EN55024). (without discharge on VGA/DVI/HDMI pin) Item Condition Spec Remark Contact discharge : +/-4KV 150pF/330ohm.
  • Page 7 Acer Acer –LCD-G195W loading:0.04A~1.3A Vcc24V:23V~30V For power saving or DC off 24V loading: 0A Vcc5V: 4.85V~5.35V audio 5v:4.5V~5.5V audio 5v loading:0A DC Output Voltage Vcc5V/1.3A Vcc24V/1.2A audio 5V/1.0A DC output loading <50mS capability Hold-up time AC input: 100V~240V >10mS Overshoot <10%...
  • Page 8 Acer Acer –LCD-G195W 7.0mA (Typ.) 7.5mA (Max.) CCFL startup voltage ≧1700 Vrms (0˚C) Operating frequency 40~60KHz Protect delay time > 1 second Efficiency ≥70% (Using dummy load) Note: Other panels please refer to the reference panel specs. 3.2 Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted.
  • Page 9 Acer Acer –LCD-G195W Audio Signal(option) Specification Items TEST CONDITIONS Input impedance(Ω) Frequency response range(Hz) THD+N = 10%﹐@1KHz 1Vrms Signal to noise ratio(dB) THD+N = 10%﹐@1KHz 1Vrms Output power(W) 4. Input / Output Signal Specifications 4.1 Video signals Analog RGB signal: 0.7Vp-p...
  • Page 10 Acer Acer –LCD-G195W 28~29H VESA 1280x720@60Hz 1650x750 44.955 59.940 74.176 2A~2BH 1280x800@60Hz 1680x831 49.702 59.810 83.500 WXGA 1360x768@60Hz 1792x795 47.712 60.015 85.500 2C~2DH 1440x900@60Hz 1904x931 55.935 59.887 106.500 WXGA+ 1440x900@75Hz 1936x942 70.635 75.000 136.750 4.3 Timing requirements Scan Frequency Condition...
  • Page 11 Acer Acer –LCD-G195W Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All the specified modes 5.1 Panel general specifications 5.1.1 General specifications Supplier MT190AW02 V.0 Model name Display Area 408.24 ( H ) x255.15 ( V ) , 19W” diagonal Pixel Pitch 0.3(H) x 0.3(V)
  • Page 12 Acer Acer –LCD-G195W b. Show “source icon” at the same time, as searching that port c. Go into next port automatically, if search the port without signal d. Display it, if search the port with signal D. When the volume menu displays, press [►] to increase the volume.
  • Page 13 Acer Acer –LCD-G195W 0～100 V.Position 0～100 Focus 0～100 Clock 50 ○ Warm Default Cool Colour Temp 0～100 User Green 0～100 0～100 Blue Auto Config 10～120 OSD Timeout Volume ----- ----- 0～100 Full Default Wide Mode Aspect DDC/CI Input EMEA NO-EMEA...
  • Page 14 Acer Acer –LCD-G195W 2.繁體中 1.English 3.Deutsch 4.Français 5.Español 6.Italiano 7.简体中文 8.日本語 (英语) 文 (德语) (法语) (西班牙语) (意大利语) Picture Bild Image Imagen Immagine 畫面 画面 ピクチャー Brightness Helligkeit Luminosité Brillo Luminosità 亮度 亮度 輝度 コントラス Contrast Kontrast Contraste Contraste Contrasto 對比...
  • Page 15 Acer Acer –LCD-G195W Autoréglage Autoajuste 自動調整 Auto Config Autom. Abgl. Autoregolazione 自动调整 自動調整 Veuillez Espere, por Please Wait Bitte warten Attendere prego 請稍待 请稍待 お待ちください patienter favor ケーブルが接続さ Cable Not 無訊號線 Leitung nicht Câble non Cable no Cavo non 信号线...
  • Page 16 Acer Acer –LCD-G195W Setting Настр. Einstellung Réglages Configuración Impostazione Instelling Asetus Modo Wide Mode Широкоэк.реж. Bildformate Mode Large Modo Wide Breedbeeldmodus Laajakuva panorámico Full Полное Vollbild Plein écran Completa Pieno Volledig Täysikuva Aspect Aspect Input Вход Eingang Entrée Entrada Input...
  • Page 17 Acer Acer –LCD-G195W Abstimmen/Be Aanpassen/verl Adjust/Exit Настроить /Выход Ajuster/Quitter Ajuste/salir Regola/Esci Säädä/Lopeta enden aten 7. Mechanical 7.1 Dimension Dimension Width 451.45mm 375.04mm(W/Base), Height 369.03mm(W/O Base) 173.48mm(W/Base), Depth 92.96mm(W/O Base) Monitor Weight 4.30±0.3Kg 7.2 Cabinet Material Cabinet Material Spec Cabinet Plastic Material...
  • Page 18 Acer Acer –LCD-G195W 7.1.2.1 Random Vibration Items Description Sweep Frequency 1~200Hz Amplitude 1.14 Grms Duration Time 30 minute each axis Direction 3 mutually perpendicular axes (x, y, z) RANDOM VIBRATION SPECTRUM BREAK POINTS PSD, G 2 /Hz Frequency (Hz) 0.0001 0.01...
  • Page 19 Acer Acer –LCD-G195W 9.1 S/N Label The approval marking is required by the countries of sales destination. 9.2 Carton label The approval marking is required by the c ountries of sales destination.

  • Page 21: Flat Panel Specification

    Acer Acer –LCD-G195W 2. Flat Panel Specification...
  • Page 22 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 4/23 A．General specification Item Specification Remark Display resolution (pixel) 1,440(H) X 900(V), WXGA+ resolution Active area (mm) 408.24(H) X 255.15(V) Screen size (inch) 19 inches diagonal Pixel pitch (mm) 0.2835(H) X 0.2835(V) Color configuration R, G, B vertical stripe...
  • Page 23 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 5/23 B. Electrical specifications 1.Pin assignment Connector FOXCONN GS23302-0311S-7F or mechanical interface equivalent connector. Pin No Symbol Description Frame Ground RXinO0- -LVDS differential data input, Chan 0-Odd RXinO0+ +LVDS differential data input, Chan 0-Odd RXinO1-...
  • Page 24 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 6/23 Top view of LVDS connector Rear view of LVDS connector...
  • Page 25 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 °C...
  • Page 26 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 1000...
  • Page 27 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 9/23 Note 4 : test condition :‘ µ (1) V = 5 V, V rising time = 470 s ± 10% (2) Pattern: Mosaic pattern μ Ton=470 s ±...
  • Page 28 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 29 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 30 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 12/23 c. Input signal timing Support Input Timing Table Item Description Min. Typ. Max. Unit Clock period 17.24 22.5 Dclk frequency 44.4 V total line number V_TOTAL H_TOTAL Data duration －...
  • Page 31 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 13/23 d. Display Position D(1, 1) D(2, 1) …… D(720, 1) …… D(1439, 1) D(1440, 1) D(1, 2) D(2, 2) …… D(720, 2) …… D(1439, 2) D(1440, 2) ……...
  • Page 32 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 14/23 Note 3: Test equipment: AS-114B Note 4: 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 5: Inverter should provide more than min.
  • Page 33 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 15/23 C. Optical specifications Specification Item Symbol Condition Unit Remark Min. Typ. Max. Response time θ ∘ Note 4 Tr+Tf θ 1000 ∘ Contrast ratio Note 3,5 Viewing angle CR≧10 CR≧10...
  • Page 34 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 35 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 36 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 37 SPEC NO. M T 1 9 0 AW 0 2 V. Y 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 38 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 20/23 H. Label (1) Module Label 73 mm MT190AW02 AM1900006 MADE IN XXX ' - Z '- Z '- Z ' -Z ' -Z (a) Model Number: MT190AW02 (b) Version: V.Y (c) Serial ID I: Z Serial No...
  • Page 39 SPEC NO. M T 1 9 0 AW 0 2 V. Y PAGE 21/23 (2) Carton Label INNOLUX DISPLAY BOX ID : Model No. MT190AW02 AM1900006 Quantity : 7 PCS MFG Date: 20XX/XX/XX Made in XXX 100 mm (a) Model Number: MT190AW02 (b) Version: V.Y (c) Packing quantity: 7 pcs (d) Serial ID: Z...

  • Page 42: Exploded Diagram

    Acer Acer –LCD-G195W 03 Exploded Diagram 3.1 G195W_SCREW_LIST Fixed Item Part No. Description T(kg*cm) Remark I/F Board to Chassis*1 5.0±0.5 509146306200R SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc Power Board to Chassis*4 D-SUB CON*2 4.0±0.5 509000000700R BOLT,#4-40x11.8,Ni ROHS DVI CON*2 12±1 509412610500R SCREW,B,CROSS,B.T-4*10,BLK, ROHS Hinge to Stand 12±0.5...

  • Page 43: Troubleshooting

    04 Trouble shooting...
  • Page 46 No Power & Power LED Off No power Check primary rectifier Check circuit if Check IC802, voltage short C804, T801, Check F801, P801, RT,801,D801 Check pin6 of IC802 CheckC810,D803,C807, voltage about 16V Check primary OVP, OLP and Check pin2 of IC802 voltage secondary feedback, OVP circuit about 3V...
  • Page 47 4.5 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 IC803 voltage of IC803 voltage of IC803 Check R832 Check pin7 of Check D803,C807,C810 if IC802 voltage short Change D803,C807,C810 Check pin3 of...
  • Page 48 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? pin6 of IC501? R505 open Are connected rightly Connecting the CN501, CN502, CN503...

  • Page 49: Spare Parts List

    05 Spare parts List 8191AZ61A120R ACER PART PARTNAME OEM PART NO DESCRIPTION POWER 55.LKA0J.002 7940F1400600R PCBA,PI/B,W/SPK,LE19AZ-612 ROHS BOARD KEYPAD 794041500000R PCBA,KEYPAD BOARD,LE23AK-612 ROHS 55.LK60J.003 BOARD MAIN 7940F1300600R PCBA,IF/B(VY,EMEA,W/SPK),LE19AZ-612 ROHS 55.LKA0J.001 BOARD 50.LKA0J.001 430303003270R HRN LVDS FFC 30P 184mm W/TASTE FFC CABLE 50.LK30J.001 430300803760R HRN ASS'Y 280mm 2*4P TO 8P UL1571#28 R...
  • Page 50 60.LKA0J.001 71405E19AC03R ASSY,BACK COVER,DUAL,W SPK ,BLACK,INL,LE BACKCOVER 60.LKA0J.002 71403E19AC00R ASSY, BEZEL,BLACK,LE19AC BEZEL 60.LK30J.003 71401E18AN00R ASSY,STAND,LE18AN STAND 60.LK30J.004 71402E18AN00R ASSY,BASE,LE18AN BASE 23.LK30J.001 618100100180R Speaker 1W 8Ω 260mm,R/B,W/CASE,ROHS SPEAKER LK.1900N.020 631102093121H LCP 19"MT190AW02-VY- G1,AM1900006Y01(INN PANEL...

  • Page 51: Schematics And Layouts

    Acer Acer –LCD-G195W 06 Schematics and Layouts 6.1 IF BD Layout...
  • Page 52 Acer Acer –LCD-G195W 6.2 KEYPAD BD Layout...
  • Page 53 Acer Acer –LCD-G195W 6.2 Switching Mode Power Supply circuit...
  • Page 54 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 55 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 56 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 57 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 58: Assembly And Disassembly

    Assembly and Disassembly Use a screwdriver to unscrew the 4 S1: Disassemble the hinge cover. screws to release the stand. S4:put the dissemble monitor on the desk...
  • Page 59 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 60 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 61 S13、Dissemble the panel from the S12: Dissemble the chassis from the front bezel. front bezel. disengage the locking mechanism. NOTE: locking mechanism...
  • Page 62 S14、Release the keypad from the s15、 Release the cable。 front bezel. s16、 Use a screwdriver to unscrew the screws to release the main board and power board.
  • Page 63 s17、 Use a screwdriver to unscrew the s19、 release the power board and main board from screws to release the main board. the chassis. s18、 release the speaker cable from the power board.