BenQ G2200WE User manual

1
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)
©Copyright BenQ Corporation 2010. All Right Reserved.
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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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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
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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 / Software
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.
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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 disassembly 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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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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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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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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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 DDC2BTM
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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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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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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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
1
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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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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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7. Click , if it is successful it will show the below pictures:
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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 setting, 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 display the Brightness and Contrastindicators. Further press ◄or ►keys, then the ENTER
key to select Brightness or Contrast. The ►key will increase the level, while the ◄key will decrease the level.
To exit, press the MENU key.
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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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Display Menu
1. Press the MENU key to display the main menu.
2. Press ◄or ►keys to select DISPLAY and then press the ENTER key to enter the menu.
3. Press ◄or ►keys to move the highlight to a menu item and then press the ENTER key to select that item.
4. Press ◄or ► keys to make adjustments or selections.
5. To return to the previous menu, press the MENU key.
Item Function Operation Range
Auto
Adjustment
Optimizes and adjusts the screen settings automatically for you.
The AUTO key is a ‘hot key’ for this function.
When you connect a digital video output using a digital (DVI)
cable to your monitor, the AUTO key and the Auto
Adjustment function will be disabled.
Press the ENTER
key to select this
option and make
adjustment.
H. Position Adjusts the horizontal position of the screen image. Press ◄or ►
keys to adjust the
value.
0 to 100
V. Position Adjusts the vertical position of the screen image. 0 to 100
Pixel Clock Adjusts the pixel clock frequency timing to synchronize with the
analog input video signal. Not applicable to a digital input signal. 0 to 100
Phase Adjusts the pixel clock phase timing to synchronize with the
analog input video signal. Not applicable to a digital input signal. 0 to 63
Picture Menu
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1. Press the MENU key to display the main menu.
2. Press ◄or ►keys to select PICTURE and then press the ENTER key to enter the menu.
3. Press ◄or ►keys to move the highlight to a menu item and then press the ENTER key to select that item.
4. Press ◄or ►keys to make adjustments or selections.
5. To return to the previous menu, press the MENU button.
Item Function Operation Range
Brightness Adjusts the balance between light and dark shades.
Press the ►key to
increase the brightness
and press the ◄key to
decrease the brightness.
0 to 100
Contrast Adjusts the degree of difference between darkness
and lightness.
Press the ►key to increase
the contrast and press the
◄key to decrease the
contrast.
0 to 100
Sharpness Adjusts the clarity and visibility of the edges of the
subjects in the image.
Press the ►key to
improve the crispness of
the display and press the
◄key to have softness
effect on the display.
1 to 5
Color - Press ENTER to enter the Color menu.
Normal Allows video and still photographs to be viewed with
natural coloring. This is the factory default color. Press ◄or ►keys to
select this option.
Bluish Applies a cool tint to the image and is factory pre-set
to the PC industry standard white color.
Reddish Applies a warm tint to the image and is factory
pre-set to the news print standard white color.
User
Mode
Tailors the image color tint. The blend of the Red,
Green and Blue primary colors can be altered to
change the color tint of the image. Decreasing one
or more of the colors will reduce their respective
influence on the color tint of the image. e.g. if you
reduce the Blue level the image will gradually take
on a yellowish tint. If you reduce Green, the image
will become a magenta tint.
Press ◄or ►keys and the
ENTER key to select Red,
Green, or Blue. Then use
Press ◄or ►keys to
make the color
adjustments.
• Red
(0 to 100)
•
Green
(0 to 100)
• Blue
(0 to 100)
Reset
Color
Resets the User Mode custom color settings to the
factory defaults.
Press ◄or ►keys to
adjust the settings.
YES
NO
Press MENU to leave the Color menu.
Dynamic
Contrast
The function will increase the level of contrast to
provide sharper and more detailed image quality.
Activating Dynamic Contrast will disable Brightness
and Contrast controls
Press the ENTER key to
select this option. Press the
󲐀or 󲐀keys to change the
settings.
• ON
• OFF
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Picture Advanced Menu
1. Press the MENU key to display the main menu.
2. Press ◄or ►keys to select PICTURE ADVANCED and then press the ENTER key to enter the menu.
3. Press ◄or ►keys to move the highlight to a menu item and then press the ENTER key to select that item.
4. Press ◄or ►keys to make adjustments or selections.
5. To return to the previous menu, press the MENU button.
Item Function Operation Range
Picture Mode
Selects a picture mode that best suits the type
of images shown on the screen.
• Standard - for basic PC application.
• Movie - for viewing videos.
• Game - for playing video games.
• Photo - for viewing still images.
• sRGB - for better color matching
representation with the peripheral devices,
such as printers, DSCs, etc.
• ECO – for saving electricity with low power
consumption by providing minimum brightness
for all running programs.
Press ◄or ►keys to
change the settings.
Standard
Movie
Game
Photo
sRGB
Senseye Demo
Displays the preview of screen images under
the selected mode from Picture Mode. The
screen will be divided into two windows; the left
window demonstrates images of Standard
mode, while the right window presents the
images under the specified mode.
Press ◄or ►keys to
change the settings.
ON
OFF
Display Mode
This feature is provided to allow aspect ratio’s
other than 16:10 to be displayed without
geometric distortion.
• Full - Scales the input image to fill the screen.
Ideal for 16:10 aspect images.
• Aspect - Ideal for 4:3 aspect images.
Press the 󲐀or 󲐀keys
to change the settings.
• Full
• Aspect
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