BenQ G2200WE Product Service Manual

Applicable Country & Regions: EU

Service Manual for BenQ: LCD G2200WE (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)

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22″ LCD Color Monitor BenQ G2200WE

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

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22″ LCD Color Monitor BenQ G2200WE

Abbreviations & Acronyms

A ADC Analog to Digital Converter AFC Automatic Frequency Control: control signal used to tune to the correct frequency

BenQ BenQ Corporation BTSC Broadcast Television System Committee

C CPU Central Process Unit

CVBS Composite Video Blanking and Synchronization

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

EEPROM Electrically Erasable and Programmable Read Only Memory

FLASH FLASH memory

G-TXT Green Teletext

HDMI High Definition Multimedia Interface, digital audio and video interface

HP Head Phone

I2C Integrated IC bus

LED Light Emitting Diode

LVDS Low Voltage Differential Signal, data transmission system for high

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22″ LCD Color Monitor BenQ G2200WE

MOSFET Metal Oxide Semiconductor Field Effect Transistor

NC Not Connected

NVM Non Volatile Memory: IC containing TV related data (for example, options)

OSD On Screen Display

PC Personal Computer

PCB Printed Circuit Board (or PWB)

RC Remote Control transmitter

RGB

Red, Green and Blue. T he primary color signa ls for TV. By mixing le vels 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 / Software

THD Total Harmonic Distortion

V VGA Video Graphics Array

YPbPr

Component video (Y= Lum inance, Pb / Pr= Color difference signals B-Y and R-Y, other amplitudes w.r.t. to YUV)

Y/C

Video related signals: Y c onsists of luminance signa l, blanking level and s ync; C consists of color signal.

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22″ LCD Color Monitor BenQ G2200WE

1. About this Manual

The purpose of Service Manual is to provide a guide line to engineers 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 disassembl y when repair the machine and also do the protection of panel any time. When repairing the circuit board, please follow the requirement of RoHS and refer to the circuit diagram and repairing process that attached in the Service Manual. The method of firmware 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 Product shall perform service or maintenance to it. Before performing any maintenance or service, the engineer MUST read the “Important Safety Information”.

1.2 Trademark

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22″ LCD Color Monitor BenQ G2200WE

2. Introduction

This section contains general service information, please 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. Products 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 MUST 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 environmental 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 such 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.

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22″ LCD Color Monitor BenQ G2200WE

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 cleaning 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 that 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 local

Laser Safety Compliance Requirements.

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22″ LCD Color Monitor BenQ G2200WE

3. General Description

This new LCD (Liquid Crystal Display) monitor BenQ G2200WE 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 31 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 1680x1050 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

Service Web Site

eSupport URL:

http://esupport.benq.com

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22″ LCD Color Monitor BenQ G2200WE

5. Product Overview

5.1 Monitor Specifications

LCD Panel

Panel Type (TN / VA / IPS) TN Size 22" Pixel pitch 0.282mm Viewable angle

160, 160 (CR>10) Contrast 1000:1 Brightness

300 cd/m2 Response time 5ms(Tr+Tf)

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 Colors Max. Resolution

1680 x 1050

Plug & Play VESA DDC2B

EPA ENERGY 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 100~240VAC,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

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22″ LCD Color Monitor BenQ G2200WE

5.2 Packing

When packing the monitor into the carton, please follow the pictures as below.

1. Using the EPE bag to pack the monitor without base

2. Using the EPS to pack the monitor

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22″ LCD Color Monitor BenQ G2200WE

3. Putting the base, user manual, DVI-D cable and power cord in the position as the picture shows below.

Base

DVI-D cable

User manual

Power cord

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22″ LCD Color Monitor BenQ G2200WE

Level 1 Cosmetic / Appearance / Alignment Service

Visual Inspection & Cleaning

• Cleaning. Always unplug your monitor from the wall outlet before cleaning. Clean the LCD monitor surface with a lint-free, non-abrasive cloth. Avoid using any liquid, aerosol or glass cleaners.

• Slots and openings on the back or top of the cabinet are for ventilation. They must not be blocked or covered. Your monitor should never be placed near or over a radiator or heat source, or in a built-in installation unless proper ventilation is provided.

• Never push objects or spill liquid of any kind into this product.

Software/Firmware Upgrade Process

Hardware Requirement:

1) ISP board (715GT034-D for BenQ)

2) Printer cable(x1), VGA cable (x1), 12V DC power source

3) PC or notebook with parallel (printer) port x 1

Software Requirement:

1) PORT95NT.exe

2) Realtek_ISP_Tool 3Bank For BenQ ver4.3.exe

3) TPVDDC.exe

Step 1: Install the “PORT95NT.exe”

1. Double click the icon

to install the “PORT95NT”, and then restart the computer.

Step 2: Writing the ISP data

1. Press the button 1 and connect the ISP board as follow:

Connect to PC LPT

12V DC input

Connect to the VGA

port of the monitor

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22″ LCD Color Monitor BenQ G2200WE

2. Open the software “Realtek_ISP_Tool 3Bank For BenQ ver4.3.exe”, and then click “RTD 2122 ISP”

Note: The process of the ISP writing takes G2020HD for example.

3. Click “Main1: 64k”, and choose the file “BenQ G2020HD 2545LH _SEC.H00”

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22″ LCD Color Monitor BenQ G2200WE

4. Click “Open”, it will show the below picture

5. Click “Main2: 64~128K”, and choose the file “BenQ G2020HD 2545LH _SEC.H01”

6. Click “128~160”, and choose the file “BenQ G2020HD 2545LH _SEC_EXTEND.hex”

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22″ LCD Color Monitor BenQ G2200WE

7. Click , if it is successful it will show the below pictures:

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22″ LCD Color Monitor BenQ G2200WE

Adjustment / Alignment Procedure

The Control Panel

1. AUTO: Adjust vertical position, phase, horizontal position and pixel clock automatically.

2. “MENU” key: Activate OSD main menu and return to the previous menu or exit OSD.

3. ◄/Mode key: For Left/Decrease adjustment. The key is the hot key for Mode.

4. “Power”: Turn the power on or off.

5. ►/Contrast/Brightness key: For Right/Increase adjustment. The key is the hot key for Brightness and Contrast.

6. “ENTER” key: Enter sub menus and select items. For models with DVI inputs, this key is also the hot key for Input.

OSD = On Screen Display.

The hot-keys will display a graduated scale for adjusting the value of that s ett in g, and will only operate while the OSD menu is not currently displaying. Hot-key displays will disappear after a few seconds of no key activity.

Hot Key Mode

The monitor keys perform as hot keys to provide direct access to particular functions whenever the menu isn't currently displaying on-screen.

Brightness and Contrast Hot Keys

Press the ► key to displa y the Brightness and Contrast indicators. Further press ◄ or ► keys, then the ENTER key to select Brightness or Contrast. The ► key will increase the level, while the ◄ ke y w ill decrease the level. To exit, press the MENU key.

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22″ LCD Color Monitor BenQ G2200WE

Mode Hot Key

Press the ◄ key continually to switch between the 6 modes for the main window, including Standard, Movie, Game,

Photo, sRGB, and ECO. The setting will take effect immediately.

Input Hot Key

Press the ENTER key to toggle between different PC video signal inputs that may be connected to your monitor. The setting will take effect immediately.

Main Menu Mode

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.

There are four main OSD menus:

1. Display

2. Picture

3. Picture Advanced

4. System

Use ◄ (left) or ► (right) keys to highlight a menu item, and press the ENTER key to enter the Menu item settings. The OSD menu languages may differ from the product supplied to your region.

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+ 38 hidden pages

BenQ G2200WE Product Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual