BenQ G2200we Service Manual
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1 Applicable Country & Regions: EU Service Manual for BenQ: LCD G2 200WE ( D- SUB + DVI- D + Glossy Black Chassis Colors) P /N: 9H.Y0PLA.DBx Product Service Manual – Level 1~ 2 Version: 1st Date: 02-05 -2010 Notice: For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability statements. Please check BenQ’s eSupport web site, http://esupport.benq.com, to ensure that you have the most recent version of this manual. First Edition ( Feb. 2010 ) © Copyright BenQ Corporation 2010. All Right Reserved.
22″ LCD Color Monitor BenQ G2200WE 2 Content Index 1. About this Manual ................................................................................................................................................... 5 1.1 Important ............................................................................................................................................................ 5 1.2 Trademark .......................................................................................................................................................... 5 2. Introduction ............................................................................................................................................................. 6 2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS. .................................................... 6 2.2 Safety Warning and Notice ................................................................................................................................. 6 2.3 Compliance Statement ....................................................................................................................................... 7 3. General Description ................................................................................................................................................ 8 4. Related service information................................................................................................................................... 8 5. Product Overview ................................................................................................................................................... 9 5.1 Monitor Specifications ........................................................................................................................................ 9 5.2 Packing ............................................................................................................................................................. 10 Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................ 12 Visual Inspection & Cleaning .................................................................................................................................. 12 Software/Firmware Upgrade Process .................................................................................................................... 12 Level 2 Circuit Board and Standard Parts Replacement ...................................................................................... 25 Product Exploded View .......................................................................................................................................... 25 Six Angles’ View ..................................................................................................................................................... 27 Product Disassembly .............................................................................................................................................. 28 Block Diagram ........................................................................................................................................................ 32 Schematic Diagram ................................................................................................................................................ 34 Troubleshooting ...................................................................................................................................................... 42 PCB LAYOUT ......................................................................................................................................................... 50 Appendix 1 – Screw List / Torque ........................................................................................................................... 55
22″ LCD Color Monitor BenQ G2200WE 3 Abbreviations & Acronyms A ADC Analog to Digital Converter AFC Automatic Frequency Control: control signal used to tune to the correct frequency B BenQ BenQ Corporation BTSC Broadcast Television System Committee C CPU Central Process Unit CVBS Composite Video Blanking and Synchronization D DLP Digital Light Processing / Texas Instruments® DMD Digital Micro mirror Device DRAM Dynamic RAM DVI Digital Visual Interface DVI-D Digital Visual Interface- digital DVI -I Digital Visual Interface- Integrated E EEPROM Electrically Erasable and Programmable Read Only Memory F FLASH FLASH memory G G-TXT Green Teletext H HDMI High Definition Multimedia Interface, digital audio and video interface HP Head Phone I I2C Integrated IC bus L LED Light Emitting Diode LVDS Low Voltage Differential Signal, data transmission system for high M
22″ LCD Color Monitor BenQ G2200WE 4 MOSFET Metal Oxide Semiconductor Field Effect Transistor N NC Not Connected NVM Non Volatile Memory: IC containing TV related data (for example, options) O OSD On Screen Display P PC Personal Computer PCB Printed Circuit Board (or PWB) R RC Remote Control transmitter RGB Red, Green and Blue. The primary color signals for TV. By mixing levels of R, G and B, all colors (Y/C) are ROM Read Only Memory S SDA Data signal on I2C bus SDRAM Synchronous DRAM SW Sub Woofer / Soft ware T THD Total Harmonic Distortion V VGA Video Graphics Array Y YPbPr Component video (Y= Luminance, Pb / Pr= Color difference signals B -Y and R -Y, other amplitudes w.r.t. to YUV) Y/C Video related signals: Y consists of luminance signal, blanking level and sync; C consists of color signal.
22″ LCD Color Monitor BenQ G2200WE 5 1. About this Manual The purpose of Service Manual is to provide a guide line to engi neers to repair different models. The appearance and capability is introduced in this Service Manual. It is better for repair engineer to have a rough idea of this model through reading the Service Manual. Please do pay attention to the item part of the di sassembly when repair the machine and also do the protection of p anel any time. When repairing the circuit board, please follow the requirement of R oHS and refer to the circuit diagram and repairing process that attached in the Service Manual. The method of firm ware updated, the way of using the menu and some information that may be used when repairing are also attached in the Service Manual that provide repair engineer various choice. 1.1 Important Only trained service personnel who are familiar with this BenQ P roduct shall perform service or maintenance to it. Before performing any maintenance or service, the engineer MUST read the “Important Safety Information”. 1.2 Trademark
22″ LCD Color Monitor BenQ G2200WE 6 2. Introduction This section contains general service information, plea se read through carefully. It should be stored for easy access place. 2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS. The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal requirement by EU (European Union) for the global electronics industry which sold in EU and some counties also require this requirement. Any electrical and electronics products launched in the market after June 2006 should meet this RoHS requirements. Product s launched in the market before June 2006 are not required to compliant with RoHS parts. If the original parts are not RoHS complaints, the replacement parts can be non ROHS complaints, but if the original parts are RoHS compliant, the replacement parts MU ST be RoHS complaints. If the product service or maintenance require replacing any parts, please confirming the RoHS requirement before replace them. 2.2 Safety Warning and Notice Installation 1. Do not use your monitor under any of the following environment al conditions: • Extremely high or low temperature, or in direct sunlight • Dusty places • Highly humid, exposed to rain, or close to water • Exposed to vibrations or impacts in places such as cars, buses, trains, and other rail vehicles • Near heating appliances su ch as radiators, heaters, fuel stoves, and other heat -generating items (including audio amplifiers) • An enclosed place (such as a closet or bookcase) without appropriate ventilation • An uneven or sloping surface • Exposed to chemical substances or smoke 2. Do not block vents and openings by clothes or curtains. 3. Carry the monitor carefully. 4. Do not place the monitor face down on the floor or a desk surface directly. Otherwise, scratches on the panel surface may occur. 5. Do not place heavy loads on the monitor to avoid possible personal injury or damage to the monitor. 6. Ensure that children do not hang or climb onto the monitor. 7. Keep all packing bags out of reach of children.
22″ LCD Color Monitor BenQ G2200WE 7 Operation 1. To protect your eyesight, please refer to the user manual to set the optimal screen resolution and the viewing distance. 2. To reduce eye fatigue, take a break on a regular basis while using the monitor. Avoid taking either one of the following actions for a long time. Otherwise, burn marks may occur. • Use the monitor in the aspect ratio of 4:3, 5:4, or 16:10. • Place a still image (such as an OSD menu, fixed text or image) on the screen. 3. To avoid possible damage to the monitor, do not touch the monitor panel by hand, pen, or any other sharp objects. 4. Excessively frequent plug and unplug of video connectors (D-sub / DVI / HDMI) may cause damage to the monitor. 5. This monitor is designed mainly for personal use. If you want to use the monitor in a public place or a harsh environment, contact your nearest BenQ service center for assistance. 6. To avoid possible electric shock, do not dissemble or repair the monitor. 7. If a bad smell or an abnormal sound appears to come from the monitor, contact your nearest BenQ service center for assistance immediately. Cleaning 1. Ensure that the power is unplugged before c leaning your monitor 2. Use a monitor cleaner and a soft cloth to clean your monitor. 3. Do not use solvents such as alcohol to clean your monitor. Power 1. To avoid possible damage to the monitor, do not use it in a region where power supply is unstable. 2. Ensure t hat the power cord is connected to a grounded power outlet before turning on the monitor. 3. Use only the power cord provided by BenQ. 4. Never use a power cord that appears to be damaged or frayed. 5. To avoid possible danger, observe the total electric load when using the monitor with a (multi -outlet) extension cord. 6. Always turn off the monitor before unplugging the power cord. 2.3 Compliance Statement Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications and your loc al Laser Safety Compliance Requirements.
22″ LCD Color Monitor BenQ G2200WE 8 3. General Description This new LCD (Liquid Crystal Display) monitor BenQ G2 200WE offers numerous features and functions, for example: • TFT display (Thin Film Transistor; active matrix) • Minimal space requirements thanks to slim casing • Optimum ergonomic characteristics (totally distortion- free, excellent picture definition and color purity right into the corners) • Contrast ratio 1000:1 , brightness 300nits • MAX. resolution ( 1680 x 1050) • Presentation of up to 16.7 M colors (in conjunction with an appropriate graphics card) • Automatic scanning of horizontal frequencies from 3 1 to 83 KHz and refresh rates (vertical frequencies) from 55 to 76 Hz (absolutely flicker -free) • Digital screen controller with microprocessor for storing 15 different display modes • Freely adjustable color alignment for matching the screen colors to the colors of various input and output devices • Convenient operation via integrated OSD (On- Screen-display) menu • VESA- DDC compatibility • Plug & play capability • Power management for reducing power consumption when the computer is not in use This operating manual contains important information you require to start up and run your LCD monitor. This specification defines the requirements for the 22 ″ MICROPROCESSOR based Multi -mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15- pin VGA connector and 24- pin DVI -D connector, also supports VESA DPMS power management and plug & play function. Additional information Due to the nature of liquid crystal display (LCD) technology, the picture resolution is always fixed. For the best display performance, please set the display resolution to 1680x 1050 pixels with an aspect ratio of 16: 9. This is called “Native Resolution” or maximal resolution - that is, the clearest picture. Lower resolutions are displayed on a full screen through an interpolation circuit. Image blurring across pixel boundaries can occur with the interpolated resolution depending upon the image type and its initial resolution. 4. Related service information This Service Manual contains general information. There are 2 levels of service: Level 1: Cosmetic / Appearance / Alignment Service Level 2: Circuit Board or Standard Parts Replacement Servi ce Web Site eSupport URL: http://esupport.benq.com
22″ LCD Color Monitor BenQ G2200WE 9 5. Product Overview 5.1 M onitor Specifications LCD Panel Panel Type (TN / VA / IPS) T N Size 22 Pixel pitch 0.282mm Viewable angle 160, 160 (CR>10) Contrast 1000:1 Brightness 300 cd/m2 Response time 5ms (Tr+T f) Input Video R, G, B Analog Interface Separate Sync. H/V TTL H-Frequency 31 - 83 kHz Multi - frequency monitor V-Frequency 55 - 76 Hz modes within these parameters Display Colors 16.7M Colo rs Max. Resolution 1 680 x 105 0 Plug & Play VESA DDC2BTM E PA E N E R G Y STAR® ON Mode ≤45W saving mode < 1 Watt, 120 V < 2 Watt, 240 V Input Connector 15-pin D-Sub Input Video Signal Analog: 0. 7Vp- p(standard), 75 OHM, Positive Power Source 100~240VA C ,50~60Hz Environmental Considerations Operating Temp: 0° to 40°C Operating Humidity: 10% to 90% Certifications TCO 03/99, TÜV/Ergonomics, TÜV/ GS, FCC Class B, VCCI, CB Report, CE, C -Tick, Fimko, GOST, MIC, EPA, CCC, BSMI, CSA, SASO, PSB, NOM, TUV- Argentina
22″ LCD Color Monitor BenQ G2200WE 10 5.2 Packing When packing the monitor into the carton, please follow the pictur es as below. 1. Using the EPE bag to pack the monitor without base 2. Using the EPS to pack the monitor