BenQ G2200W Service Manual
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BenQ G2200W Service Manual

22” lcd color monitor
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22" LCD Color Monitor
1. About This Manual..................................................................................................................................................2  
2. Introduction .............................................................................................................................................................3  
2.1 RoHS requirement..............................................................................................................................................3
2.2 Safety Notice ......................................................................................................................................................3
2.3 General Description............................................................................................................................................4
2.4 Related service information................................................................................................................................4
3. Product Overview ...................................................................................................................................................6  
3.1 Monitor Specifications ........................................................................................................................................6
3.2 Input Signal Connector.......................................................................................................................................7
3.3 Factory Preset Display Modes ...........................................................................................................................8
3.4 Panel Specification.............................................................................................................................................9
4 Disassembly /Assembly........................................................................................................................................11
4.1 Three angles' view............................................................................................................................................ 11
4.2 Exploded View..................................................................................................................................................12
4.3 Disassembly .....................................................................................................................................................13
5. Cosmetic / Appearance / Alignment Service......................................................................................................17  
5.1 Software/Firmware Upgrade Process ..............................................................................................................17
5.2 Adjustment / Alignment Procedure ...................................................................................................................19
5.3 White-Balance, Luminance Adjustment ...........................................................................................................28
6 Circuit Board and Standard Parts Replacement.................................................................................................30
6.1 Electrical Block Diagram ..................................................................................................................................30
6.2 Troubleshooting Guide .....................................................................................................................................32
6.3 Circuit operation theory ....................................................................................................................................39
6.4 BOM List...........................................................................................................................................................41
Content Index
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BenQ G2200W

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Summary of Contents for BenQ G2200W

  • Page 1: Table Of Contents

    22” LCD Color Monitor BenQ G2200W Content Index 1. About This Manual..............................2   2. Introduction ................................3   2.1 RoHS requirement..............................3 2.2 Safety Notice ..............................3 2.3 General Description............................4 2.4 Related service information..........................4 3. Product Overview ..............................6   3.1 Monitor Specifications ............................6 3.2 Input Signal Connector............................7...

  • Page 2: About This Manual

    Service Manual that provide repair engineer various choice. If you have any questions, please contact with the engineers of TPV customer service. COLOR MONITOR MODEL ID G2200W (China) 1st Edition Feb. 2008...

  • Page 3: Introduction

    22” LCD Color Monitor BenQ G2200W 2. Introduction 2.1 RoHS requirement Overview -Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directive 2002/95/EC is published in the Official Journal 13 February 2003 (OJ L37, 13.2.2003, p.19).

  • Page 4: General Description

    A graphics card (screen controller) with VGA interface or a digital graphics card with DVI interface is required to control the BenQ G2200W LCD monitor. The monitor processes the data supplied to it by the screen controller. The screen controller or the associated driver software is responsible for setting the modes (resolution and refresh rate).
  • Page 5 22” LCD Color Monitor BenQ G2200W with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit instructions. • Slots and openings in the back and bottom of the cabinet are provided for ventilation. To ensure reliable operation of the monitor and to protect it from overheating, be sure these openings are not blocked or covered.

  • Page 6: Product Overview

    22” LCD Color Monitor BenQ G2200W 3. Product Overview 3.1 Monitor Specifications Driving system TFT Color LCD Size 558.68mm(22") Pixel pitch 0.282mm(H) × 0.282mm(V) Display Area 473.76 x 296.1 LCD Panel 160, 160 (CR>10) Viewable angle Contrast 1000:1 210 cd/m...

  • Page 7: Input Signal Connector

    22” LCD Color Monitor BenQ G2200W 3.2 Input Signal Connector Pin No. Description Pin No. Description Green Detect Cable Blue Ground Ground DDC-Serial Data VGA_CON H-Sync R-Ground V-Sync G-Ground DDC-Serial Clock B-Ground Pin No. Description Pin No. Description Pin No.

  • Page 8: Factory Preset Display Modes

    22” LCD Color Monitor BenQ G2200W 3.3 Factory Preset Display Modes...

  • Page 9: Panel Specification

    22” LCD Color Monitor BenQ G2200W 3.4 Panel Specification M220Z1-L03 OVERVIEW The M220Z1-L03 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS interface. This module supports 1680 x 1050 WSXGA (16:10 wide screen) mode and displays up to 16.7 millions colors.
  • Page 10 22” LCD Color Monitor BenQ G2200W Optical Characteristics...

  • Page 11: Disassembly /Assembly

    22” LCD Color Monitor BenQ G2200W 4 Disassembly /Assembly 4.1 Three angles’ view...

  • Page 12: Exploded View

    22” LCD Color Monitor BenQ G2200W 4.2 Exploded View...

  • Page 13: Disassembly

    22” LCD Color Monitor BenQ G2200W 4.3 Disassembly 1). Back View as Fig1 Place the monitor face down on a smooth surface as Fig 1. Be careful to avoid scratch and injury during the uninstall. Fig1 2).Remove the STAND-BASE ASS'Y Remove the two screws in red to remove the STAND-BASE ASS'Y as Fig2.
  • Page 14 22” LCD Color Monitor BenQ G2200W 3).Remove the Rear Cover and Bezel The arrows in blue are the hook that we should put attention to when remove the rear cover. Use plastic putty knife to release the 5 hooks on the bottom,8 hooks on the top,4 hooks on the left,4 hooks on the right and remove the only one screw in red as Fig.3 on the rear cover , then you can easily remove the rear cover and bezel.
  • Page 15 22” LCD Color Monitor BenQ G2200W 4).Remove the Panel Remove the 4 screws on the side of main frame first, and then disconnect the Lamp Connections and LVDS Cable connection. SCREWS LVDS CABLE Lamp Connection...
  • Page 16 22” LCD Color Monitor BenQ G2200W 5).Remove the Main Board and Power Board Remove the screws in red and disconnect the all connections, at last you can get the Main Board and Power Board as follow. LVDS CABLE MAIN BOARD...

  • Page 17: Cosmetic / Appearance / Alignment Service

    22” LCD Color Monitor BenQ G2200W 5. Cosmetic / Appearance / Alignment Service 5.1 Software/Firmware Upgrade Process 1) Connect the ISP board as follow: 2) Double-click ，running the program as follows: 3) Click the icon, when the screen as shown below appears, please click...
  • Page 18 22” LCD Color Monitor BenQ G2200W 4) Until appears the follow Figure, writer completed.

  • Page 19: Adjustment / Alignment Procedure

    22” LCD Color Monitor BenQ G2200W 5.2 Adjustment / Alignment Procedure Adjusting the Picture You can use the OSD (On Screen Display) menu to adjust all the settings on your monitor. Press the MENU key to display the following main OSD menu.
  • Page 20 22” LCD Color Monitor BenQ G2200W Display menu 1. Press the MENU key to display the main menu. 2. Press the (left) or (right) keys to select DISPLAY and then press the ENTER key to enter the menu. 3. Press the...
  • Page 21 22” LCD Color Monitor BenQ G2200W Picture menu 1. Press the MENU key to display the main menu. 2. Press the (left) or (right) keys to select PICTURE and then press the ENTER key to enter the menu. 3. Press the...
  • Page 22 22” LCD Color Monitor BenQ G2200W Color - Press ENTER to enter the Color menu. Allows video and still photographs Normal 0 to 100 to be viewed with natural coloring. This is the factory default color. Press the (left) Applies a cool tint to the image and...
  • Page 23 22” LCD Color Monitor BenQ G2200W Picture Advanced menu 1. Press the MENU key to display the main menu. 2. Press the (left) or (right) keys to select PICTURE ADVANCED and then press the ENTER key to enter the menu.
  • Page 24 22” LCD Color Monitor BenQ G2200W Item Function Operation Range Selects a picture mode that best suits the type of images shown on the screen. • Standard - for basic PC application. • Standard Press the (left) • Movie - for viewing videos.
  • Page 25 22” LCD Color Monitor BenQ G2200W System menu 1. Press the MENU key to display the main menu. 2. Press the (left) or (right) keys to select SYSTEM and then press the ENTER key to enter the menu. 3. Press the...
  • Page 26 22” LCD Color Monitor BenQ G2200W region. Chinese • Serbo-Croatian • Romanian • Dutch • Russian • Swedish • Portuguese Adjusts the horizontal H. Position 0 to 100 position of the OSD menu. Adjusts the vertical V. Position 0 to 100...
  • Page 27 22” LCD Color Monitor BenQ G2200W be accessible. Press MENU to leave the OSD Settings menu. Press the ENTER key to select this Allows the monitor option. Press the • ON DDC/CI* settings to be set through • OFF the software on the PC.

  • Page 28: White-Balance, Luminance Adjustment

    = 313 ±30, y = 329 ±30, Y=200±20cd/m 3. Into Factory mode of BENQ G2200W: Turn off the monitor, keep pressing the ENTER button, and turn on the monitor , then when we press the AUTO button, the factory OSD will be at the left top of the panel.
  • Page 29 22” LCD Color Monitor BenQ G2200W 5. Adjust the GREEN on factory window until chroma 7120 indicator reachedthe value G=100 6. Adjust the BLUE on factory window until chroma 7120 indicator reached the value B=100 7. Repeat above procedure (item 4,5,6) until chroma 7120 RGB value meet the tolerance =100±2 C.

  • Page 30: Circuit Board And Standard Parts Replacement

    22” LCD Color Monitor BenQ G2200W 6 Circuit Board and Standard Parts Replacement 6.1 Electrical Block Diagram Main Board Crystal LCD Interface (X401) (CN601) Scalar IC RTD2545LH RTD2122L (Include ADC, OSD) (U401) (U501) H sync H sync V sync V sync...
  • Page 31 22” LCD Color Monitor BenQ G2200W Inverter/Power Board 5V Rectifier and Filter Transformer Bridge Rectifier and T901 12V Rectifier EMI filter Filter and Filter Start Circuit: R904，R932，R933 CN902 Feedback Over PWM Control IC Voltage Circuit IC TEA1530 Protect ON/OFF MOSFET...

  • Page 32: Troubleshooting Guide

    22” LCD Color Monitor BenQ G2200W 6.2 Troubleshooting Guide Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with and Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.
  • Page 33 22” LCD Color Monitor BenQ G2200W Main Board (1) No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Measure U201 Pin2=3.3V...
  • Page 34 22” LCD Color Monitor BenQ G2200W (2) No picture No picture Measure U201 PIN2=3.3V Replace U201 X401 oscillate waveforms are normal Replace X401 Check U401 Replace U401 Check if the sync signal from computer is output and video cable is connected normally...
  • Page 35 22” LCD Color Monitor BenQ G2200W (3) White screen White Screen Measure Q602 base X401 oscillate is low level? waveform is normal Replace X401 Check Q601 is broken or Check U401 CN601 solder? Replace U401 Check Correspondent Check reset circuit of component.
  • Page 36 22” LCD Color Monitor BenQ G2200W Power/Inverter Board No power Check CN902 PIN5.6 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin8 of IC901...
  • Page 37 22” LCD Color Monitor BenQ G2200W W / LED, No Backlight Check Inverter input =12V Check adapter and F801 Check ON/OFF signal Check Interface board or main board Check IC801 PIN 2=5V Change ON/OFF circuit Check IC801 PIN1/PIN15 PWM wave...
  • Page 38 22” LCD Color Monitor BenQ G2200W Keypad Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Is Key Pad Board normally? Replace Key Pad Board...

  • Page 39: Circuit Operation Theory

    22” LCD Color Monitor BenQ G2200W 6.3 Circuit Operation Theory...
  • Page 40 22” LCD Color Monitor BenQ G2200W 1) MCU initializes. 2) Is the EPROM blank? 3) Program the EPROM by default values. 4) Get the PWM value of brightness from EPROM. 5) Is the power key pressed? 6) Clear all global flags.

  • Page 41: Bom List

    22” LCD Color Monitor BenQ G2200W 6.4 BOM List TC8MRJDYMWBGHN Location TPV Part No. Description 019G6014 1 TIE FOR STRIP 040G 581 26704 SHIPPING LABEL 040G 581881 4A WARRANTY LABEL 041G 68508 A CONTROL CARD 044G6002689 1A PAPER BOARD 044G9003214...
  • Page 42 22” LCD Color Monitor BenQ G2200W A37G0068 1 HINGE E750 750GLMC0Z1312N PANEL M220Z1-L03 C1 NB CMO A15G0364101 MAINFRAME A34G0641ADP 1B0133 BASE AM1G1740 10 47 CR3 SCREW CBPC8MRJBFQ1 MAIN BOARD 040G 45762412B CBPC LABEL CN202 033G3802 6 WAFER CN201 033G3802 9...
  • Page 43 22” LCD Color Monitor BenQ G2200W R322 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R323 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R313 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R312 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R311 061G0402101...
  • Page 44 22” LCD Color Monitor BenQ G2200W R305 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W R304 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W R401 061G0402390 1F RST CHIPR 3.9KOHM +-1% 1/16W R437 061G0402390 1F RST CHIPR 3.9KOHM +-1% 1/16W R438 061G0402390 1F RST CHIPR 3.9KOHM +-1% 1/16W...
  • Page 45 22” LCD Color Monitor BenQ G2200W C205 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C204 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C201 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C412 065G0402105 A5 CAP 0402 1UF K 10V X5R...
  • Page 46 22” LCD Color Monitor BenQ G2200W D314 093G 6433S DIODE BAV99 SEMTECH ZD307 093G 39S 34 T UDZSNP5.6B ROHM ZD305 093G 39S 34 T UDZSNP5.6B ROHM ZD304 093G 39S 34 T UDZSNP5.6B ROHM ZD303 093G 39S 34 T UDZSNP5.6B ROHM...
  • Page 47 22” LCD Color Monitor BenQ G2200W CN802 033G8021 2E U INVERT CONNECTOR CN803 033G8021 2E U INVERT CONNECTOR CN804 033G8021 2E U INVERT CONNECTOR 040G 45762412B CBPC LABEL 051G 6 4503 GLUE_RTV IC903 056G 139 3A IC PC123Y22FZ0F C903 063G 10747410V 0.47UF 275VAC ARCO...
  • Page 48 22” LCD Color Monitor BenQ G2200W 051G 200 1 OIL FOR DISAPPEAR D906 093G 60267 SP10100 0M1G1730 8120 SCREW Q90G6274 2 HEAT SINK 705GQ857006 Q901 ASS'Y 051G 200 1 OIL FOR DISAPPEAR Q901 057G 724 11 STP9NK65ZFP 0M1G1730 8120 SCREW...
  • Page 49 22” LCD Color Monitor BenQ G2200W R915 061G0805224 RST CHIPR 220 KOHM +-5% 1/8W R930 061G08052431FY RST CHIPR 2.43KOHM +-1% 1/8W YAGEO R834 061G08053001FF RST CHIPR 3KOHM +-1% 1/8W FENGHUA R852 061G0805303 RST CHIPR 30 KOHM +-5% 1/8W R827 061G0805303...
  • Page 50 22” LCD Color Monitor BenQ G2200W R829 061G1206150 RST CHIPR 15 OHM +-5% 1/4W R807 061G1206220 RST CHIPR 22 OHM +-5% 1/4W R805 061G1206471 470 1206 R904 061G1206472 RST CHIPR 4.7 KOHM +-5% 1/4W R932 061G1206472 RST CHIPR 4.7 KOHM +-5% 1/4W...
  • Page 51 22” LCD Color Monitor BenQ G2200W D916 093G 6432S IN4148W D801 093G 6432S IN4148W D806 093G 6432S IN4148W D807 093G 6432S IN4148W D808 093G 6432S IN4148W D903 093G 6432S IN4148W D915 093G 6432S IN4148W ZD801 093G 39S 24 T RLZ 5.6B LLDS...
  • Page 52 Q44GC049881 1A 22 LCD BENQ CARTON Q45G 88606 R PE BAG FOR BASE Q45G 88609 87 EPE COVER FOR MONITOR Q52G 1185 80 BIG TAPE FOR BENQ CARTON Q41G7800881 2A (4J.06L03.001)CERTIFICATE Q41G780088117A (4J.06K02.003)WARRANTY CARD FOR CHINA Q41G780088119A QSG(4J.0H401.001) Q45G 76 28A35...

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