Download Product Service Manual – Level 1~2

Applicable Country & Regions: Europe/China
Service Manual for BenQ:
LCD E2400HD
(D-SUB+DVI-D+HDMI1.3
+ Black Bezel)
Product Service Manual – Level 1~2
Version: 1st
Date:07-08-2008
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 (August, 2008)
©
Copyright BenQ Corporation 2008. All Right Reserved.
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24” LCD Color Monitor
BenQ E2400HD
Content Index
Abbreviations & Acronyms........................................................................................................................................3
1. About This Manual..................................................................................................................................................5
1.1 Important ............................................................................................................................................................5
1.2 Trademark...........................................................................................................................................................5
2. Introduction .............................................................................................................................................................5
2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS.....................................................5
2.2 Safety Notice ......................................................................................................................................................6
2.3 Compliance Statement .......................................................................................................................................6
3. General Description................................................................................................................................................6
4. Related service information...................................................................................................................................7
5. Product Overview ...................................................................................................................................................8
5.1 Monitor Specifications ........................................................................................................................................8
5.2 Packing...............................................................................................................................................................9
Level 1 Cosmetic / Appearance / Alignment Service ..............................................................................................9
Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................10
Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................11
Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................12
Visual Inspection & Cleaning..................................................................................................................................12
Software/Firmware Upgrade Process ....................................................................................................................12
Adjustment / Alignment Procedure .........................................................................................................................20
Level 2 Circuit Board and Standard Parts Replacement ......................................................................................31
Product Exploded View ..........................................................................................................................................31
Six angles’ view ......................................................................................................................................................31
Product Disassembly..............................................................................................................................................32
Block Diagram ........................................................................................................................................................35
Schematic Diagram ................................................................................................................................................37
Troubleshooting Guide ...........................................................................................................................................46
PCB LAYOUT .........................................................................................................................................................53
Appendix – Screw List / Torque ..............................................................................................................................56
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24” LCD Color Monitor
BenQ E2400HD
Abbreviations & Acronyms
A
ADC
Analogue 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 Synchronisation
D
DLP
Digital Light Processing / Texas Instruments®
DMD
Digital Micromirror Device
DRAM
DVI
DVI-I
Dynamic RAM
Digital Video Interface
Digital Video Interface-Integrated
E
EEPROM
Electrically Erasable and Programmable Read Only Memory
F
FLASH
FLASH memory
G
G-TXT
Green Teletext
H
HDMI
HP
High Definition Multimedia Interface, digital audio and video interface
Head Phone
I
I2C
Integrated IC bus
L
LED
LVDS
Light Emitting Diode
Low Voltage Differential Signalling, data transmission system for high
M
MOSFET
Metal Oxide Semiconductor Field Effect Transistor
N
NC
NVM
Not Connected
Non Volatile Memory: IC containing TV related data (for example, options)
O
OSD
On Screen Display
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24” LCD Color Monitor
BenQ E2400HD
P
PC
PCB
Personal Computer
Printed Circuit Board (or PWB)
R
RC
RGB
ROM
Remote Control transmitter
Red, Green, and Blue. The primary colour signals for TV. By mixing levels of R, G, and B,
all colours (Y/C) are
Read Only Memory
S
SDA
SDRAM
SW
Data signal on I2C bus
Synchronous DRAM
Sub Woofer / Software
T
THD
Total Harmonic Distortion
V
VGA
Video Graphics Array
Y
YPbPr
Y/C
Component video (Y= Luminance, Pb/ Pr= Colour difference signals B-Y and R-Y, other
amplitudes w.r.t. to YUV)
Video related signals: Y consists of luminance signal, blanking level and sync; C consists
of colour signal.
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24” LCD Color Monitor
BenQ E2400HD
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
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
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24” LCD Color Monitor
BenQ E2400HD
complaints.
If the product service or maintenance require replacing any parts, please confirming the RoHS requirement
before replace them.
2.2 Safety Notice
1.
Make sure your working environment is dry and clean, and meets all government safety requirements.
2.
Ensure that other persons are safe while you are servicing the product.
3.
DO NOT perform any action that may cause a hazard to the customer or make the product unsafe.
4.
Use proper safety devices to ensure your personal safety.
5.
Always use approved tools and test equipment for servicing.
6.
Never assume the product’s power is disconnected from the mains power supply. Check that it is
disconnected before opening the product’s cabinet.
7.
Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety
procedures while handling these parts.
8.
Some products contain more than one battery. Do not disassemble any battery, or expose it to high
temperatures such as throwing into fire, or it may explode.
9.
Refer to government requirements for battery recycling or disposal.
2.3 Compliance Statement
1.
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications and your
local Laser Safety Compliance Requirements.
3. General Description
This new LCD (Liquid Crystal Display) monitor BenQ E2400HD 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 colour purity right into
the corners)
● high degree of brightness and good contrast
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24” LCD Color Monitor
BenQ E2400HD
● high resolution (1920x1080)
● presentation of up to 16.7 million colours (in conjunction with an appropriate graphics card)
● automatic scanning of horizontal frequencies from 30 to 83 kHz and refresh rates (vertical frequencies) from 50 to
76 Hz (absolutely flicker-free)
● digital screen controller with microprocessor for storing 21 different display modes
● freely adjustable colour alignment for matching the screen colours to the colours 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
● compliance with the recommendations in accordance with TCO’03
This operating manual contains important information you require to start up and run your LCD monitor.
This specification defines the requirements for the 24” MICROPROCESSOR based Multi-mode supported high
resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector, 24-pin
DVI connector and 19-pin HDMI connector, also supports VESA DPMS power management and plug & play function.
There is a build-in stereo audio amplifier with OSD control to drive a pair of speakers.
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 1920x1080 pixels with an aspect ratio of 16:10. 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
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24” LCD Color Monitor
BenQ E2400HD
Service Web Site
eSupport URL:http://esupport.benq.com
5. Product Overview
5.1 Monitor Specifications
LCD Panel
Panel Type
TN
Size
24"
Pixel pitch
0.277mm(H) × 0.277mm(V)
Display Area
531.36 (H) x 298.89 (V)
Viewable angle
170, 160 (CR>10)
Contrast
1000:1
Dynamic contrast
ratio
Brightness
Response time
Video
Input
10000: 1 (typical)
300 cd/m2
5ms(typical)
2 ms (GTG)
RGB analog 0.7 Vpp/75 Ohm positive
Digital: DVI-D, HDMI
Synchronization
TTL separate signal connection 15-pin mini D-sub cable
H-Frequency
30 - 83 kHz Multi- frequency monitor
V-Frequency
50 - 76 Hz modes within these parameters
Display Colors
16.7M Colors
Image diagnostics
Digital, OSD Technology, AUTO key (automatic image setting)
Controls
5 buttons and AUTO key
Max. Resolution
1920 x 1080
Power management
VESA DPMS, EPA
Max. power
EPA ENERGY
STAR®
57W (max)
consumption
saving mode
< 2 Watt
Speaker(power consumption)
1 Watt x 2
Operating voltage
Automatic switched mode power supply, 100-240 V, 50-60 HZ
Environmental
Considerations
Operating Temp: 0° to 35°C
Operating Humidity: 10% to 85%
Dimension (H x W x D)
365.5mm x 582.6mm x 197.4mm
Weight (N. W.)
7 KG
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24” LCD Color Monitor
BenQ E2400HD
5.2 Packing
When packing the monitor into the carton, please follow the pictures as below.
Using the EPE bag to pack the monitor without base.
Putting the base into the PE bag
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24” LCD Color Monitor
BenQ E2400HD
Using the EPS to pack the monitor
Putting the base and user manual in the position as the picture shows above.
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24” LCD Color Monitor
BenQ E2400HD
Power cord, Signal cable,
Audio cable
Putting the monitor and accessories into the carton.
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24” LCD Color Monitor
BenQ E2400HD
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
1. When do the part, need the tools as follow:
a. An i486 (or above) personal computer or compatible.
b. Microsoft operation system Windows 95/98/2000/XP.
c. “ PORT95NT.exe” program
d. Software ISP SN Alignment kits
The kit contents:
a. ISP BOARD x1
b. Printer cablex1
c. VGA cable x1
2. Install the “PORT95NT.EXE”, and restart the computer.
You must install the
at the first. The processing as follows:
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24” LCD Color Monitor
BenQ E2400HD
13
24” LCD Color Monitor
BenQ E2400HD
14
24” LCD Color Monitor
BenQ E2400HD
15
24” LCD Color Monitor
Click
BenQ E2400HD
to complete the installation.
Note: After installation, you must restart the PC to take the setup to effect.
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24” LCD Color Monitor
BenQ E2400HD
3. Connect the ISP board as follow:
Connect to
Connect to the
the PC LPT
BenQ model
4. The process of ISP write is as follows.
a. Double-click
，running the program as follows:
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24” LCD Color Monitor
b. Click
c. Click
BenQ E2400HD
icon, running the program as follows:
icon, load the program”E2400W-TSUMU88EDI-M240HW01-V0x-20080801_V027_B15B.BIN”
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24” LCD Color Monitor
d. Click
BenQ E2400HD
icon, it will auto run. If burn in success, it will show as the follow picture:
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24” LCD Color Monitor
BenQ E2400HD
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.
There are four main OSD menus:
1. Display
2. Picture
3. Picture Advanced
4. Audio
5. System
Use the
or
keys to highlight a menu item, and press the ENTER key to enter the Menu item settings.
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24” LCD Color Monitor
BenQ E2400HD
Display menu
1. Press the MENU key to display the main menu.
2. Press the
or
keys to select DISPLAY and then press the ENTER key to enter the menu.
3. Press the
or
keys to move the highlight to a menu item and then press the ENTER key to select that
or
keys to make adjustments or selections.
item.
4. Press the
5. To return to the previous menu, press the MENU button.
Item
Auto
Adjustment
H. Position
Function
Operation
Optimizes and adjusts the screen
Press
the
settings automatically for you. The
key to select this
AUTO key is a ‘hot-key’ for this
option
function.
adjustment.
and
ENTER
make
Adjusts the horizontal position of the
0 to 100
screen image.
V. Position
Adjusts the vertical position of the
0 to 100
screen image.
Adjusts the pixel clock frequency
Pixel Clock
timing
analog
to
synchronize with
input
video
signal.
the
Not
applicable to a digital input signal.
Range
Press the
or
keys to adjust the
0 to 100
value.
Adjusts the pixel clock phase timing
Phase
to synchronize with the analog input
video signal. Not applicable to a
digital input signal.
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0 to 63
24” LCD Color Monitor
BenQ E2400HD
Picture menu
1. Press the MENU key to display the main menu.
2. Press the
or
keys to select PICTURE and then press the ENTER key to enter the menu.
3. Press the
or
keys to move the highlight to a menu item and then press the ENTER key to select that
or
keys to make adjustments or selections.
item.
4. Press the
5. To return to the previous menu, press the MENU button.
Item
Function
Operation
Adjusts the balance between light
Brightness
and dark shades.
The function is not available for use
Press the
Range
key to increase
the brightness and press the
0 to 100
key to decrease the
brightness.
when Dynamic Contrast is on
Adjusts the degree of difference
Contrast
Sharpness
between darkness and lightness.
The function is not available for use
Press the
key to
increase the contrast and
when Dynamic Contrast is on.
key to
press the
decrease the contrast.
Adjusts the clarity and visibility of
Press the
the edges of the subjects in the
image.
0 to 100
key to
improve the crispness of
1 to 5
the display and press the
key to have softness effect on
the display.
Color - Press ENTER to enter the Color menu.
Normal
Allows video and still photographs
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0 to 100
24” LCD Color Monitor
BenQ E2400HD
to be viewed with natural coloring.
This is the factory default color.
Bluish
Applies a cool tint to the image and
0 to 63
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.
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.
The default start setting is 50.
User Mode
Press the
or
keys
and the ENTER key to select
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
Red, Green, or Blue. Then
use Press the
or
keys to make the color
• Red
(0 to 100)
• Green
(0 to 100)
• Blue
(0 to 100)
adjustments.
on a yellowish tint. If you reduce
Green, the image will become a
magenta tint.
Reset Color
• YES
Resets the User Mode custom color
or
Press the
settings to the factory defaults.
keys to
• NO
change the settings.
Press MENU to leave the Color menu.
The function will increase the level
of contrast to provide sharper and
Dynamic Contrast
more detailed image quality.
Activating Dynamic Contrast will
disable Brightness and Contrast
controls.
23
Press the ENTER key to
select this option. Press
• ON
• OFF
the
or
keys to
change the settings.
24” LCD Color Monitor
BenQ E2400HD
Picture Advanced menu
1. Press the MENU key to display the main menu.
2. Press the
or
keys to select PICTURE ADVANCED and then press the ENTER key to enter the menu.
3. Press the
or
keys to move the highlight to a menu item and then press the ENTER key to select that
or
keys to make adjustments or selections.
item.
4. Press the
5. To return to the previous menu, press the MENU button.
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24” LCD Color Monitor
Item
BenQ E2400HD
Function
Operation
Range
Selects a picture mode that best suits
the type of images shown on the
screen.
• Standard
• Standard - for basic PC application.
• Movie - for viewing videos.
Picture Mode
Press the
• Dynamics - for viewing
landscape-specific videos and playing
games.
or
keys to change the
settings.
• Movie
• Dynamics
• Photo
• sRGB
• Photo - for viewing still images.
• sRGB - for better color matching
representation with the peripheral
devices, such as printers, DSCs, etc.
This feature is provided to allow aspect
ratio’s other than 16:10 to be displayed
Display Mode
without geometric distortion.
• Full - Scales the input image to fill the
screen. Ideal for 16:10 aspect images.
Press the
or
keys to change the
• Full
• Aspect
settings.
• Aspect - Ideal for 4:3 aspect images.
Displays the preview of screen images
under the selected mode from
Picture Mode. The screen will be
Senseye Demo
divided into two windows; the left
window demonstrates images of
Standard mode, while the right window
presents the images under the
specified mode.
25
Press the
or
keys to change the
settings.
• ON
• OFF
24” LCD Color Monitor
BenQ E2400HD
Audio menu
1. Press the MENU key to display the main menu.
2. Press the
or
keys to select PICTURE and then press the ENTER key to enter the menu.
3. Press the
or
keys to move the highlight to a menu item and then press the ENTER key to select that
or
keys to make adjustments
item.
4. Press the
or
selections.
5. To return to the previous menu, press the MENU button.
Item
Function
Operation
Press the
Volume
Adjusts the audio volume
Range
or
keys to change the
volume.
Mute
Press the
Mutes the audio input
or
keys to change the
• ON
• OFF
settings.
• PC Audio
Audio Select
Allow users to select the audio source
or let the monitor detect it automatically
Press the
keys to change the
settings.
26
or
• HDMI Audio
• Auto Detect
24” LCD Color Monitor
BenQ E2400HD
System menu
1. Press the MENU key to display the main menu.
2. Press the
or
keys to select SYSTEM and then press the ENTER key to enter the menu.
3. Press the
or
keys to move the highlight to a menu item and then press the ENTER key to select that
or
keys to make adjustments or selections.
item.
4. Press the
5. To return to the previous menu, press the MENU button.
Item
Function
Operation
Range
Selects the D-sub (analog) or DVI
(digital) input. Use this to change
Input
Press the
the input to that appropriate to your
video cable connection type.
Analog-only models do not have the
or
• DVI
• D-sub
keys to
change the settings.
• HDMI
Input function.
OSD Settings - Press ENTER to enter the OSD Settings menu.
• English
Press the
or
keys to
adjust the value.
The language
Language
Sets the OSD menu Language.
options displayed on
your OSD may differ
from those shown on
the right, depending
on the product
supplied in your
region.
• French
• German
• Italian
• Spanish
• Polish/
Japanese
• Czech/
Traditional
Chinese
• Hungarian/
Simplified
Chinese
• Serbo-Croatian
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24” LCD Color Monitor
BenQ E2400HD
• Romanian
• Dutch
• Russian
• Swedish
• Portuguese
H. Position
V. Position
Adjusts the horizontal
0 to 100
position of the OSD menu.
Adjusts the vertical
position of the OSD menu.
0 to 100
Press the
or
• 5 Sec.
keys to
change the settings.
Adjusts the display
Display Time
the OSD menu.
• 10 Sec.
• 15 Sec.
• 20 Sec.
• 25 Sec.
• 30 Sec.
Press the
or
keys to
change the settings.
To unlock the OSD
controls when the
OSD is preset to be
OSD Lock
Prevents all the monitor
locked, press and
settings from being
hold the ’MENU' key
accidentally changed.
for 15 seconds to
When this function is
enter the 'OSD Lock'
• YES
activated, the OSD
option and make
• NO
controls and hotkey
changes.
operations will be
Alternatively, you
disabled.
may use the
or
keys to
select ’OFF’ in the
'OSD Lock' submenu
from the ’OSD
Settings’ menu, and
all OSD controls will
be accessible.
Press MENU to leave the OSD Settings menu.
DDC/CI*
Allows the monitor
Press the ENTER
• ON
settings to be set through
key to select this
• OFF
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24” LCD Color Monitor
BenQ E2400HD
the software on the PC.
option. Press the
the
or
keys
to change the
settings.
Information
Displays the current
Press the ENTER
monitor property settings.
key to select this
option.
Press the ENTER
When this function is activated,
key to select this
HDMI Auto
HDMI port will be in the input auto
option. Press the
Switch
select loop. Otherwise, HDMI can
only be selected by input select or
by hot key.
• ON
• OFF
the
or
keys
to change the
settings.
Resets all mode, color and
Reset All
Press the
geometry settings to the
or
keys to
factory default values.
• YES
• NO
change the settings.
Factory OSD Menu
Turn off the monitor, keep pressing the “MENU” + “ENTER” buttons, and turn on the monitor, then when we press
the AUTO button, the factory OSD will be at the left top of the panel as below.
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24” LCD Color Monitor
BenQ E2400HD
BenQ Service Page
1. Trigger method: Press “Menu” key and Power on.
2. Press the Menu key will display the service page
3. Press menu key will close the service page.
4. power off will quit the service mode
5. At the service mode, the key function is same as normal OSD define.
6. The timer can only reset at the service mode by “ Timer Reset”. And need to have a warning message to double
confirm the reset function.The timer should record up to 99999 hours
7. Add one select item for HDCP(DVI port),Mode1,Mode2 at Service menu
Mode1: To enable the hot plug pin detection.(HDMI port default)
Mode 2: To disable the hot plug pin detection.(DVI port default)
8. add BenQ logo on/off item, the default is “on”
9. add the auto power on item, the default is “off ”
10. Add the timer reset warning message, when select the timer reset item, then the warning message will display
and need to confirm it again and the default is “No”.
11. Panel type define need to have the panel version
12. F/W version need to define the dual or analog model.
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24” LCD Color Monitor
BenQ E2400HD
Level 2 Circuit Board and Standard Parts Replacement
Product Exploded View
Six angles’ view
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24” LCD Color Monitor
BenQ E2400HD
Product Disassembly
1). Remove the stand-base ASS’Y
Place the monitor face down on a smooth surface. Be careful to avoid scratch and injury during the uninstall. And
then remove the four screws as below to remove the stand-base ASS’Y.
Fig1
2).Remove the rear cover
Remove the rear cover as Fig2. The arrows in blue are the hook that we should put attention to when remove the
rear cover. Use plastic putty knife to release hooks, then you can easily remove the rear cover.
Fig2
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24” LCD Color Monitor
BenQ E2400HD
3).Remove the Bezel
Release the four screws marked in red as below to remove the bezel. Remove the USB shield.
Fig.3
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.
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24” LCD Color Monitor
BenQ E2400HD
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.
MAIN BOARD
POWER BOARD
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24” LCD Color Monitor
BenQ E2400HD
Block Diagram
Main Board
Crystal
14.318MHz
LCD Interface
Audio in
(CN403)
(CN604)
(X401)
Scalar TSUMU88EDI-LF-1 PQFP-128
Key Board Control
(Include ADC, OSD, MCU)
(CN401)
(U401)
Digital
H sync
Video
V sync
Data
RGB
APA2069JITUL
(U602)
DVI
D-Sub
HDMI
Connector
Connector
Connector
(CN102)
(CN101)
(CN501)
DVI_SCL
DVI_SDA
HP
Speaker
(CN651)
(CN606, CN607)
35
VGA_SDA,
VGA_SCL
HDMI_SDA,
HDMI_SCL
EEPROM
EEPROM
EEPROM
(U107)
(U106)
(U504)
24” LCD Color Monitor
BenQ E2400HD
Power Board
AC input
Bridge Rectifier
EMI filter
Transformer
Rectifier
Diodes
and Filter
Start Circuit
CN902
R904, R905
5V
12V
PWM
Over Voltage
Control IC
Lamp
Output
DC Convert
Circuit
Circuit
DIM
MOSFET Q805, Q806,
ON/OFF
Feedback
Circuit
ON/OFF
Protect
PWM
Over Voltage
Control IC
36
Control
24” LCD Color Monitor
BenQ E2400HD
Schematic Diagram
Main Board
VCC3.3
R701
10K 1/16W 5%
DIM
ON/OFF
CN702
R702
1K 1/16W 5%
+
C703
220uF 25V
FOR USB BD
R704
10K 1/16W 5%
C705
0.1uF 16V
R705
22K 1/16W 5%
on_BACKLIGHT 4
Q701
2N3904S-RTK/PS
+5V
VCC3.3
+5V
U701 G1084-33T43Uf
3
2
VIN VOUT
+
C706
100uF/25V
GND
C702
220uF 25V C704
0.1uF 16V
C708
0.1uF 16V
1
C701
0.1uF 16V
2
120 OHM/NC
CONN/NC
VCC3.3
+
1
Adj_BACKLIGHT 4
R703
10K 1/16W 5%
CONN
+5V
FB701
1
2
VCC3.3
+
TO-252
C707
100uF/25V
C709
0.1uF 16V
R709
on_Panel
VLCD
R708
22K 1/16W 5%
Q703
2N3906S-RTK/PS
VCC1.8
+
U702
3
VIN
C712
100uF/25V
C714
0.1uF 16V
Q702
AO3401
56K 1/16W 5%
+5V
R712
3.3 OHM 2W
+5V
R706
10K 1/16W 5%
R707
10K 1/16W 5%
4
C710
0.22uF
+
C711
100uF/25V
R711
10K 1/16W 5%
G1117-18T43Uf
2
VOUT
GND
1
2
3
4
5
6
7
8
9
10
+5V
R710
47K 1/16W 5%
+5V1
1
CN701
+
TO-252
C713
100uF/25V
C715
0.1uF 16V
OEM MODEL
Size
絬隔瓜絪腹
TPV
G3155-E-X-X-2-080723
TPV MODEL
Rev
Key Component
2.0.POWER
PCB NAME
Date
37
( Top
Victory
Electronics
Co . ,
Wednesday , July 23, 2008
Ltd. )
Sheet
715G3155-E
2
of
8
称爹
B
A
<称爹>
24” LCD Color Monitor
BenQ E2400HD
C101 0.047uF
33R 1/16W 5%
C102 0.047uF
FB103
0R05 1/10W 5%
FB107
1
2 60 OHMR103
33R 1/16W 5%
C103 0.047uF
R104
470R 1/16W 5%
C104 1000pF
R108
68R 1/16W 5%
C105 0.047uF
R109
68R 1/16W 5%
C106 0.047uF
R110
68R 1/16W 5%
C107 0.047uF
U101
GREEN+
1
2
3
I/O1 I/O4
GNDVDD
I/O2 I/O3
BLUE+
6
5
4
4
4
GNDB
4
4
4
1K 1/16W 5%
1K 1/16W 5%
HSY NC
VSYNC
4
4
VGA_SCL
VGA_SDA
R114
C110
2K2 1/16W 5% 22pF
R115
R116
100R 1/16W 5%
100R 1/16W 5%
1
2
3
U102
I/O1 I/O4
GNDVDD
I/O2 I/O3
6
5
4
VSI
VGAESD
HSI
AZC099-04S
100R 1/16W 5%
100R 1/16W 5%
DVI_SCL1
DVI_SDA1
DVI_DET
4
DVI_SCL1
DVI_SDA1
4
4
C111
NC
Close to CN101
VGA_SCL1
VGA_SDA1
VGA_SCL1
VGA_SDA1
候綼　U103
4
4
+5V
DVI5V
DVI5V
DVI5V
D101
BAV70
1/3shield
2/4shield
0/5shield
clk shield
18
17
10
9
2
1
13
12
5
4
21
20
23
24
Q101
2N3906S-RTK/PS
R120
C112
0.1uF 16V
22K 1/16W 5%
DVI_HPD
4
DVI_SCL1
DVI_SDA1
DVIESD
ZD104
RLZ5.6B
DAT0+
DAT0DAT1+
DAT1DAT2+
DAT2-
DCLK+
DCLK-
10
9
8
7
6
U104
NC
NC
GND
NC
NC
Line-1
Line-2
VDD
Line-3
Line-4
AZ1045-04QU
10
9
8
7
6
U105
NC
NC
GND
NC
NC
Line-1
Line-2
VDD
Line-3
Line-4
1
2
3
4
5
R121
R122
R123
R124
0R05 1/16W
0R05 1/16W
0R05 1/16W
0R05 1/16W
DD0DD0+
DD1DD1+
4
4
4
4
DVI_DET
1
2
3
U103
I/O1 I/O4
GNDVDD
I/O2 I/O3
6
5
4
DVI_SDA
DVIESD
DVI_SCL
AZC099-04S
R125
R126
0R05 1/16W
0R05 1/16W
R127
R128
0R05 1/16W
0R05 1/16W
4
4
DCKDCK+
4
4
VCC A0
WP
A1
SCL A2
SDA VSS
1
2
3
4
4
4
DVI_SDA1
DVI_SCL1
4,6
HDMI_WP
C113
NC
Close to CN102
DD2DD2+
C114
0.22uF
U107
8
7
6
5
M24C02-WMN6TP
DVI_HPD
DVIESD
1
2
3
4
5
3
R129
10K 1/16W 5%
R134
4K7 1/16W 5%
11
3
19
22
ZD103
RLZ5.6B
10K 1/16W 5%
候綼　U10 3
AZ1045-04QU
OEM MODEL
Size
絬隔瓜絪腹
G3155-E-X-X-1-080723
TPV MODEL
Rev
Key Component
3.0.INPUT
PCB NAME
T P V ( Top
26
25
GND
GND
DAT0+
DAT0DAT1+
DAT1DAT2+
DAT2DAT3+
DAT3DAT4+
DAT4DAT5+
DAT5clk+
clk-
DVI_DET
DVI_SCL
DVI_SDA
DVI5V
DVI_HPD
R135
4K7 1/16W 5%
R119
8
15
6
7
14
16
R130
4K7 1/16W 5%
DVIESD
VSYNC
SYNC GND
DDC SCL
DDC SDA
+5V
HPD
1
2
3
4
VCC A0
WP
A1
SCL A2
SDA VSS
HDMI_WP
2
VGA_SCL
VGA_SDA
CN102
C115
0.22uF
U106
8
7
6
5
VGA_SDA1
VGA_SCL1
4,6
候綼　U101
R111
R112
R117
R118
3
GNDG
D102
BAV70
VGAESD
M24C02-WMN6TP
120 OHM
0R05 1/16W
R113
C109
2K2 1/16W 5% 22pF
VGA5V
2
GNDR
+5V
VGA_SCL1
VGA_SDA1
C108
NC
Close to CN101
JACK
4
VGAESD
AZC099-04S
FB104
R136
SOG
1
ZD102
RLZ5.6B
HSI
VSI
4
4
RED+
ZD101
RLZ5.6B
4
BIN
R132
4K7 1/16W 5%
VGA5V
VGA_DET
4
GIN
R131
4K7 1/16W 5%
CN101
DB15
RIN
1
33R 1/16W 5%
2 60 OHMR102
R107
75R 1/16W 5%
2 60 OHMR101
FB106
1
R106
75R 1/16W 5%
FB105
1
0R05 1/10W 5%
16
15
VGA5V
VGA_DET
0R05 1/10W 5%
FB102
R105
75R 1/16W 5%
14
FB101
NC C118
13
RED+
REDGREEN+
GREENBLUE+
BLUENC C117
1
6
2
7
3
8
4
9
5
10
12
NC C116
11
close to scalar
R133
4K7 1/16W 5%
17
close to CONN
Date
38
Victory
Electronics
Wednesday , July 23, 2008
Co . ,
Ltd. )
Sheet
715G3155-E
3
of
8
称爹
B
A
<称爹>
24” LCD Color Monitor
BenQ E2400HD
VCC3.3
VDDC
VDDP
VDVI
ADC1.8
FB401
HD0HD0+
HD1HD1+
HD2HD2+
HCKHCK+
HDMI_SDA1
HDMI_SCL1
19
20
R404
GPIO_P00/SAR0
GPIO_P01/SAR1
GPIO_P02/SAR2
GPIO_P03/SAR3
14
15
16
17
+5V
PB[0..9]
R418
VDVI
390 OHM 1/16W
8
7
3
4
WP
GPIO_01
GPIO_06
GPIO_P04
REFM
75
76
77
78
SDO
SCZ
SCK
SDI
SPDIFO
AUMUTE
AUSDO
AUSCK
AUOUTLR
AUMCKO
R424
10K 1/16W 5%
C425
22uF/50V
8
R426
10K 1/16W 5%
VDDP
C426
22pF
C428
22pF
R428
0R05 1/16W
XIN
X401
14.3 Mhz
R432
0R05 1/16W
XOUT 25
R435
C403
C404
C405
C406
C407
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
C409
C410
C411
C412
C413
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
C415
C416
C417
C418
C419
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
0.1uF 16V
adj_BACKLIGHT
VOLUME
LED_G#
LED_A#
23
39
40
R415
R417
100R 1/16W 5%
100R 1/16W 5%
70
85
88
R419
100R 1/16W 5%
WP
EE_WP
89
101
103
+
C408
22uF/50V
C437
0.1uF 16V
1
VDDC
2
120 OHM
VCC3.3
C414
22uF/50V
R414
150 OHM 1/16W
R409
100R 1/16W 5%
VCC1.8
R406
10K 1/16W 5%
VCC3.3
R413
LED_A#
10K 1/16W 5%
53mA
1
LED_G
Q402
2N3906S-RTK/PS
ADC1.8
FB404
Q401
2N3906S-RTK/PS
2
120 OHM
C420
22uF/50V
HDMI_WP
DVI_DET
DVI_HPD
3,6
3
3
VGA_DET
3
0.1uF 16V
+5V_AUDIO
R416
1K 1/16W 5%
R420
4K7 1/16W 5%
Volume
R421
4K7 1/16W 5%
on_BACKLIGHT 2
on_PANEL
C421
+
LED_A
adj_BACKLIGHT 2
AUDIO_MUTE
+
6
6
5V_DETECT
KEY 1
100R 1/16W 5%
KEY 2
100R 1/16W 5%
100R 1/16W 5% POWER
9
10
11
18
VDVI
2
120 OHM
VOLUME1
Q403
2N3904S-RTK/PS
+
7
C422
22uF/50V
2
+5V_AUDIO
84
83
82
81
80
79
R423
AUDIO_SWITCH
1K 1/16W 5%
CEC_CTRL
6
AUDIO_SWITCH 7
AUSDO
7
AUSCK
7
AUOUTLR
7
AUMCKO
7
D401
LL4148
RST
26
NC
NC
NC
NC
XIN
105
106
119
120
VCC3.3
R430
10K 1/16W 5%
XOUT
67
NC
C402
FB403
R411
10K 1/16W 5%
GPIO_P23/PWM1
GPIO_P24/PWM2
GPIO_00
REFP
63
U402
MX25L2025MC-12G
2
VDD
SDO 1
HOLD# CE# 6
WP#
SCK 5
VSS
SDI
MODE
I2C_MCL
I2C_MDA
R431
10K 1/16W 5%
EE_WP
72
71
R429
10K 1/16W 5%
R434
R436
R437
8
100R 1/16W 5%7
100R 1/16W 5%6
100R 1/16W 5%5
R427
1K 1/16W 5%
U403
M24C04-WMN6TP
1
VCC NC 2
WC E1 3
SCL E2 4
SDA VSS
R425
1K 1/16W 5%
+
C429
0.22uF
Q404
2N3906S-RTK/PS
AUDIO_MUTE
C427
100uF/25V
R433
10K 1/16W 5%
R438
1K 1/16W 5%
MUTE
6
12
32
38
49
86
100
118
GND
GND
GND
GND
GND
GND
GND
GND
R439
10K 1/16W 5%
7
Q405
2N3904S-RTK/PS
R440
1K 1/16W 5%
Close to U602
R443
3.9K OHM 1/16W
CN402
RLZ5.6B
KEY 1
KEY 2
ZD405
R442
3.9K OHM 1/16W
RLZ5.6B
0.1uF 16V
C434
ZD404
0.1uF 16V
C433
0.1uF 16V
C432
ZD403
0.1uF 16V
RLZ5.6B
ZD402
0.1uF 16V
CONN
KEY 1
KEY 2
POWER
LED_G
LED_A
RLZ5.6B
1
2
3
4
5
6
C431
CN401
RLZ5.6B
R441
3.9K OHM 1/16W
VCC3.3
C430
+
R422
NC
ZD401
+5V
C423
0.1uF 16V
GPIO_P13/PWM2
GPIO_P15
GPIO_P16
REXT
64
VCC3.3
C424
0.22uF
43
GPIO_P25/PWM3
GPIO_P26/PWM0
GPIO_P27/PWM1
GPIO_P17
+
FB402
1
VCC1.8
LED_G#
GPO[0]
GPO[1]
GPO[2]
GPO[3]
GPO[4]
GPO[5]
GPO[6]
GPO[7]
GPO[A]
VCC3.3
181mA
HDMI_HPD
HDMI_DET
+5V
98
97
96
95
94
93
92
91
90
5
117mA
VCC3.3
100R 1/16W 5%
R405
R407
R408
R449
10K 1/16W 5%
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
5
5V_DETECT
PB[0..9]
GPIO_P06
GPIO_P07
RXB2P
RXB2N
RXB1P
RXB1N
RXB0P
RXB0N
RXBCKP
RXBCKN
DDCD1_SDA
DDCD1_SCL
121
122
123
124
125
126
127
128
1
2
PA[0..9]
R450
5K1 OHM 1/16W 5%
55
4
VCTRL
AVDD_18
3
27
35
44
52
LVB3P
LVB3M
LVBCKP
LVBCKM
LVB2P
LVB2M
LVB1P
LVB1M
LVB0P
LVB0M
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
R412
10K 1/16W 5%
6
6
6
6
6
6
6
6
6
6
30
31
33
34
36
37
28
29
21
22
RXA2P
RXA2N
RXA1P
RXA1N
RXA0P
RXA0N
RXACKP
RXACKN
DDCD0_SDA
DDCD0_SCL
107
108
109
110
111
112
113
114
115
116
R402
10K 1/16W 5%
47
48
50
51
53
54
45
46
41
42
DD2+
DD2DD1+
DD1DD0+
DD0DCK+
DCKDVI_SDA1
DVI_SCL1
LVA3P
LVA3M
LVACKP
LVACKM
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
2
120 OHM
+5V
PA[0..9]
RIN0P
RIN0M
GIN0P
GIN0M
SOGIN0
BIN0P
BIN0M
HSY NC0
VSY NC0
DDCA_SDA/RS232_TX
DDCA_SCL/rs232_RX
1
C401
22uF/50V
U401
TSUMU88EDI-LF-1
R401
10K 1/16W 5%
3
3
3
3
3
3
3
3
3
3
62
61
59
58
60
57
56
65
66
68
69
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSY NC
VSY NC
VGA_SDA1
VGA_SCL1
BYPASS
AVDD_33
AVDD_33
AVDD_33
AVDD_33
7
13
73
99
102
117
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDC
VDDC
VDDC
VDDC
VDDC
5
24
74
87
104
47mA
3
3
3
3
3
3
3
3
3
3
3
VDDP
R444
R445
R446
R447
NC
NC
NC
NC
POWER
KEY _LEFT
KEY _RIGHT
KEY _AUTO
LED_A
LED_G
1
2
3
4
5
6
7
8
NC/CONN
TPV
( Top
絬隔瓜絪腹
Key Component
Date
39
Victory
Electronics
G3155-E-X-X-2-080723
4.0.SCALER
Wednesday , July 23, 2008
Co . ,
Ltd. )
OEM MODEL
Size
TPV MODEL
PCB NAME
Sheet
Rev
715G3155-E
4
of
8
称爹
C
A
<称爹>
24” LCD Color Monitor
4
PA[0..9]
BenQ E2400HD
CONN
PA[0..9]
CN403
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
4
PB[0..9]
LVA3P
LVA3M
LVACKP
LVACKM
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
LVB0P
LVB1P
LVB2P
LVBCKM
LVB3M
LVA0M
LVA1P
LVA2M
LVACKM
LVA3M
GND
RXO0+
RXO1+
RXO2+
RXOCRXO3RXE0GND
RXE1+
RXE2RXECRXE3-
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
PB[0..9]
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
LVB3P
LVB3M
LVBCKP
LVBCKM
LVB2P
LVB2M
LVB1P
LVB1M
LVB0P
LVB0M
VLCD
120 OHM
Victory
Electronics
Co . ,
R448
330 OHM 1/4W
Ltd. )
RXOC+
RXO3+
RXE0+
RXE1RXE2+
RXEC+
RXE3+
Rev
G3155-E-X-X-2-080723
TPV MODEL
5.0.PANEL INTERFACE
PCB NAME
40
C436
0.1uF 16V
Size
絬隔瓜絪腹
Wednesday , July 23, 2008
C435
+
100uF/25V
OEM MODEL
Key Component
Date
RXO0RXO1RXO2-
2
R474
NC
( Top
LVB0M
LVB1M
LVB2M
GND
LVBCKP
LVB3P
LVA0P
LVA1M
GND
LVA2P
LVACKP
LVA3P
FB405
1
TPV
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Sheet
715G3155-E
5
of
8
称爹
A
C
<称爹>
24” LCD Color Monitor
BenQ E2400HD
HDMIESD
U501
HDMI1_D2+
6
7
8
9
10
HDMI1_D0HDMI1_D0+
HDMI1_D2HDMI1_D1+
NC
NC
GND
NC
NC
5
4
3
2
1
Line-4
Line-3
VDD
Line-2
Line-1
AZ1045-04QU
HDMI1_D1HDMI1_D0+
HDMI1_CKHDMI1_CK+
0R05 1/16W
0R05 1/16W
HCKHCK+
R503
R504
0R05 1/16W
0R05 1/16W
HD0HD0+
HDMI1_D1HDMI1_D1+
R505
R506
0R05 1/16W
0R05 1/16W
HD1HD1+
HDMI1_D2HDMI1_D2+
R507
R508
0R05 1/16W
0R05 1/16W
HD2HD2+
R501
R502
HDMI1_D0HDMI1_D0+
4
4
HD0HD0+
4
4
HD1HD1+
4
4
HD2HD2+
4
4
U502
HDMI1_D1HDMI1_D1+
HDMI1_D0HDMI1_CK+
6
7
8
9
10
HDMI1_D2HDMI1_D2+
HDMI1_CKCEC
NC
NC
GND
NC
NC
5
4
3
2
1
Line-4
Line-3
VDD
Line-2
Line-1
AZ1045-04QU
HDMI_CLK
HDMI_DATA
HDMI_+5V
HDMI_+5V
HDMI_HOTPLUG
ZD501
U501~U503 close to CN501
HDMI_+5V
RLZ5.6B
CEC_CTRL
R509
27K 1/16W 5%
4
I/O1 I/O4
GNDVDD
I/O2 I/O3
6
5
4
AZC099-04S
+5V
HDMI_+5V
HDMIESD
1
Q501
2N7002K/NC
U503
1
2
3
+5V
2
0R05 1/16W/NC
R510
HDMIESD
C501
0.1uF 16V
R514
R515
100R 1/16W 5%
100R 1/16W 5%
HDMI_SCL1
HDMI_SDA1
D501
BAV70
+5V
ZD502
RLZ5.6B
HCKHCK+
HDMIESD
R513
10K 1/16W 5% 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
R512
4K7 1/16W 5%
D2+
D2 Shield
SHELL3
D2D1+
D1 Shield
D1D0+
D0 Shield
D0CK+
CK Shield
CKCE Remote
NC
DDC CLK
DDC DATA
SHELL4
GND
+5V
HP DET
SHELL2
R511
4K7 1/16W 5%
21
HDMI1_CKHDMI1_CK+
HDMI
Q503
2N3904S-RTK/PS
R518
8
7
6
5
U504
VCC A0
WP
A1
SCL A2
SDA VSS
C502
0.22uF
1
2
3
4
M24C02-WMN6TP
4
4
R517
4K7 1/16W 5%
23
SHELL1
R516
1K2 1/16W 5%
22
CN501
Q502
2N3904S-RTK/PS
20
HDMI_SDA1
HDMI_SCL1
3,4
HDMI_WP
HDMI_+5V
10K 1/16W 5%
HDMI_HPD
HDMI_DET
HDMI_HPD
4
R519
10K 1/16W 5%
T P V ( Top
41
Electronics
4
2N3904S-RTK/PS
OEM MODEL
Size
絬隔瓜絪腹
G3155-E-X-X-2-080723
TPV MODEL
Rev
Key Component
6.0.HDMI INPUT
PCB NAME
Date
Victory
HDMI_DET
Q504
Wednesday , July 23, 2008
Co . ,
Ltd. )
Sheet
715G3155-E
6
of
8
称爹
B
C
<称爹>
24” LCD Color Monitor
BenQ E2400HD
FB601
1
2
120 OHM
+
C601
0.1uF 16V
C602
22uF/50V
VCC
U601
PCM1754DBQR
6
+5V1
R601
R603
R604
R606
22R
22R
22R
22R
1/16W
1/16W
1/16W
1/16W
I2S_SCK
I2S_SD0
I2S_LR
I2S_MCK
5%
5%
5%
5%
1
2
3
VOUTL
C605
22uF/50V
R602
22K 1/16W 5%
C604 1uF 10V
HINL
22uF/50V
R605
22K 1/16W 5%
C606 1uF 10V
HINR
FMT
MUTE
DEMP
10
5
VCOM
NC
DGND
AGND
R611
10K 1/16W 5%
+
C614
0.1uF 16V
4
9
POWER OFF
22pF
R610
10K 1/16W 5%
LOW
22pF
R609
10K 1/16W 5%
POWER ON
22pF
C613
22uF/50V
18K 1/16W 5%
HI
22pF
R607
STATUS
1000pF
MUTE
15
14
13
C612
C607 C608 C609 C610
1000pF
12
11
18K 1/16W 5%
SCK
TEST
ZEROA
C603
C611
VOUTR
7
8
R608
16
BCK
DATA
LRCK
+
AUSCK
AUSDO
AUOUTLR
AUMCKO
AUSCK
AUSDO
AUOUTLR
AUMCKO
+
4
4
4
4
+5V1
R614
22K 1/16W 5%
R617
9.1K
9.1K
1W/8 OHM
9.1K
9.1K
12K
12K
INL
C617 1uF 10V
22K 1/16W 5%
1
4R7 1/8W 5%
R617
+
AURIN
1
18K 1/16W 5%
1000pF
18K 1/16W 5%
2
INR
3
AULIN
4
5
INL
6
7
U603
1A
VCC
GND
1S
1B0
1B1
2A
GND
VCC
2S
2B0
2B1
NC
NC
14
C621
22uF/50V
13
12
HINR
11
4
AUDIO_SWITCH
10
9
1
2
3
4
5
6
7
8
MUTE
INR
R626
AURIN C618 1uF 10V
R613
0R05 1/16W
AULIN
R615
0R05 1/16W
C620 1uF 10V
VOLUME1
SE
U602 APA2069JITUL
SHUTDOWN
BY PASS
RINGND
GND
LINVOLUME
SE/BTL
120 OHM
OUT-L+
OUT-LOUT-R+
OUT-R-
FB605
2
1
120 OHM
HP_L
HP_SENSE
HP_R
R621
R622
R623
750R OHM 1/16W 5%
100K 1/16W 5%
750R OHM 1/16W 5%
EOUTL
SE
EOUTR
LOW
OUT-L+
STATUS
+
C625
220uF 25V
OUT-L-
4
3
2
1
2
EOUTR
1
2
3
4
5
OUT-L-
CN606
FB604
HI
OUT-R-
OUT-L+
+
R620
100K 1/16W 5%
OUT-R+
16
15
14
13
12
11
10
9
U602 IC with Heat-sink(90G6295-3)
CN603
1
CN604
ROUTVDD
ROUT+
GND
GND
LOUT+
VDD
LOUT-
C616
0.1uF 16V
AUDIO_SWITCH 4
8
1S,2S
C615
220uF 25V
HINL
FSA2257MTCX
+5V_AUDIO
2
120 OHM
+
4
+5V_AUDIO
C619 1uF 10V
C623
R616
1000pF
R636
0R05 1/16W
R
R612
C622
PHONEJACK
L
R616
22K
C624
1uF 10V
4
5
3
2
1
R614
22K
R619
10K 1/16W 5%
CN605
R612
1W/4 OHM
+5V_AUDIO
FB603
C626
220uF 25V
CONN
CN607
CONN
OUT-R+
OUT-R-
CONN
FB606
0R05 1/8W
PC(B0 to A)
Key Component
Date
R624
1K 1/16W 5%
R625
1K 1/16W 5%
OEM MODEL
Size
G3155-E-X-X-2-080723
TPV MODEL
Rev
7.0.AUDIO
PCB NAME
T P V ( Top
絬隔瓜絪腹
42
2
1
EOUTL
HDMI(B1 to A)
CONN
3
2
1
Victory
Electronics
Wednesday , July 23, 2008
Co . ,
Ltd. )
Sheet
715G3155-E
7
of
8
称爹
B
C
<称爹>
24” LCD Color Monitor
BenQ E2400HD
Power Board
L904
Coil
100 OHM 1/4W
R919
C912
0.001uF
!
D900
FR107
Q901
STP10NK70ZFP
!
R901
R902
2
R924
150R 1/8W 5%
3
D907
FCQ10U06
ZD922
ZD921
MTZJ T-72 16B
GDZJ5.6B
1
1
R949 100 OHM 1/4W
1
U903
PC123X2Y FZOF
+5V
JUMPER
C915
470UF16V
+
R925
1K 1/8W 5%
R950 100 OHM 1/4W
C935
0.001uF
R940
NC
D905
BAV70
R927
2
FB901
BEAD
2
C940
1000uF25V
D908
FCQ10U06
C921
NC/0.001uF/250V
C909
220pF
+
1000uF/16V
R938
10K 1/8W 5%
2
1
!
R912
220 OHM 1/4W
+
1
!
R910
10R 1/4W 5%
F903
1
1
R915
100K 1/8W 5%
12
4
4
R906
10R 1/8W 5%
3
T901
POWER X'FMR
3
D903
IN4148
L902
30.0mH
8
3
R939
1K 1/8W 5%
0.001uF
C939
6
1
R909
5.1 OHM 1/4W +-5%
8
7
6
5
2
RT
HV
COMPNC
CS VCC
GND OUT
C908
47uF/50V
+
R943
470R 1/8W 5%
Coil
10
D901
FR103
C907
0.1uF
L903
C929
R962 100 OHM 1/4W 0.001uF
11
MTZJ T-72 16B
2
R905
8.2K OHM 1/4W
C932
R961 100 OHM 1/4W
100K OMH 2W +-5%
ZD902
1
R903
C911
1500PF2KV
6
4
1
2
3
4
3
7
R935 100 OHM 1/4W
R904
8.2K OHM 1/4W
U901
LD7575A PS
4
5
Q903
PMBS3904
1
C906
100uF450V
1
2
+
C918
680uF25V
2
C905
100uF/450V
2
1M 1/4W 5%
9
2
+
3
!
4
FB902
BEAD
+
BD901
GBU408
2
+
2
1
1
+
680uF/25V
R951 100 OHM 1/4W
C924
0.1uF
R914
0.33 OHM +-5%
1M 1/4W 5%
2.7K OHM 1% 1/10W
3
!
C917
D906
FCH10A15
3
R946
150OHM2W
1
100 OHM 1/4W
R920
Bom Change jump wire
+12V
2
100 OHM 1/4W
R918
L906
2.2uH
D909
R926
1K 1/10W 1%
R942
1K 1/10W 1%
31DQ06FC
C900
!
3300pF 250V
C928
470pF/50V
C903
0.47UF
U904
KIA431A-AT/P
R930
!
!
!
C902
C901
1000PF/250VAC 1000PF/250VAC
F901
FUSE
!
L905
Coil
1
2
3
4
5
6
7
8
9
10
ON/OFF
DIM
+5V
NR901
NTCR
3
HS3
HEAT SINK(Q901)
1
1
2
HS2
HEAT SINK(D9 08 )
1
2
CN901
SOCKET
!
F902
CN902
!
2
2.43K OHM 1% 1/10W
C930
0.1uF
C931
0.1uF
2
Audio 5V
C916
1000uF M 16V
JUMPER
+
CONN
HS1
NC
HS4
HEAT SINK(D906)
1
2
Audio 5V
1
1
2
T P V ( Top
Electronics
Co . ,
Ltd. )
OEM MODEL
Size
G3157-1-X-X-1-080804
TPV MODEL
PWPC8E41AAB6
Key Component
03.POWER
PCB NAME
715G3157-1
Date
43
Victory
絬隔瓜絪腹
Tuesday , August 05, 2008
Sheet
1
of
3
Rev
称爹
Custom
A
ODM MODEL
24” LCD Color Monitor
BenQ E2400HD
R812
C813
180pF
C819
NC /47pF/3KV 12K 1/8W 5%
NC
CN801
CONN
Q805
AM4502C-T1-PF
+12V
ZD802
GDZJ5.6B
R803
5K1 1/8W 5%
G
S
G
S
D
D
D
D
C823
0.1uF
R804
5K1 1/8W 5%
R802
22R 1/8W 5%
R805
10K 1/10W 5%
R807
10K 1/10W 5%
C814
180pF
C820
NC/47pF/3KV
R813
18K 1/8W 5%
PT801
POWER 5
X'FMR
4
3
6
7
Q806
AM4502C-T1-PF
4
3
2
1
U801
ta9687GN
R806
1M 1/10W 5%
C803
0.01uF
C812
0.1uF/25V
C818
2.2uF/16V
R810
8
7
6
5
4
3
2
1
G
S
G
S
D
D
D
D
5
6
7
8
2
1
8
R817
1M 1/4W 5%
C815
180pF
R814
7.5K 1/8W 5%
C821
NC/47pF/3KV
C806
2.2uF/16V
C805
0.047uF
D803
BAV70
C804
3
2
D804
BAV70
C810
0.0033uF
C808
0.047uF
R818
1M 1/4W 5%
C816
180pF
R815
22K 1/8W 5%
C822
NC/47pF/3KV
3
1
2
C809
220pF
R819
1M 1/4W 5%
3
IS1
D802
BAV70
BAV99
1
IS3
2
2
IS2
C807
NC
R829
NC 1/10W 5%
3
R830
NC 1/10W 5%
R831
NC 1/10W 5%
R822
75K OHM 1/8W
1
R823
75K OHM 1/8W
R824
10K 1/8W 5%
D806
3
R821
75K OHM 1/8W
2
1
2
D808
NC/BAW56
R820
75K OHM 1/8W
2
3
3
R828
NC 1/10W 5%
1
R832
NC/ 0 OHM 1/4W
1
2
OVPT
3
L802
300mH
CN804
CONN
2
D805
1
2
4
3
VDDA
1
NC
1
D801
BAV70
D807
NC/BAW56
1
2
IS3
1
470UF/25V
Q802
2N7002 SOT-23
R809
1M 1/10W 5%
CN803
CONN
NC
R811
82K1/10W
D809
75K 1/10W
1%IN4148
R833
NC
430 OHM 1% 1/10W
R826
R808
300 OHM 1% 1/10W
R801
1M 1/10W 5%
3
L801
300mH
+
NDR1
NDR2
PDR1
GNDP
VDDA
PDR2
TIMER
GNDA
PWM
RT1
ISEN
CT
OVPT SSTCMP
ENA
VSEN
2
4
1
2
IS2
C811
0.1uF
9
10
11
12
13
14
15
16
1
CN802
CONN
470UF/25V
C801
0.047uF
R825
1M 1/8W 5%
R816
1M 1/4W 5%
NC
C824
C802
0.047uF
1
2
IS1
5
6
7
8
+
DIM
ZD803
GDZJ5.6B
1
1
+5V
2
2
ON/OFF
4
3
2
1
R827
10K 1/8W 5%
BAV99
T P V ( Top
Victory
Electronics
Co . ,
Ltd. )
OEM MODEL
Size
絬隔瓜絪腹
G3157-1-X-X-1-080804
TPV MODEL
PWPC8E41AAB6
Key Component
02.INVERTER
PCB NAME
715G3157-1
Date
44
Monday , August 04, 2008
Sheet
2
of
3
Rev
称爹
Custom
A
ODM MODEL
24” LCD Color Monitor
BenQ E2400HD
Key Board
CN002
LED_GRN#
LED_RED#
POWER
1
2
3
4
GND
CONN
GND
8
CN001
6
5
4
3
2
1
LBADC1
LBADC2
DC_POWERON
LED_GRN#
LED_RED#
7
CONN
C001
C002
NC/0.001uF
NC/0.001uF
C003
C004
C005
C006
NC/0.001uF
NC/0.001uF
NC/0.001uF
NC/0.001uF
R003
R002
1.8K1/10W
3K 1/10W 1%
R005
R004
3K 1/10W 1%
1.8K1/10W
R006
R007
1.8K1/10W
3K 1/10W 1%
POWER
GND
ENTER(3.0K) 1.435V
LBADC3
6
SW003
SW
1
2
ENTER
RIGHT
3
GND
5
4
3
SW002
SW
1
2
6
6
0.1uF 50V
C011
1
2
UDZSNP5.6B
ZD001
SW
1
2
GND
5
4
0.1uF 50V
C010
1
2
UDZSNP5.6B
ZD002
LEFT
C009
2
ZD003
2
ZD004
SW004
0.1uF 50V
1
UDZSNP5.6B
2
ZD005
C008
6
3
GND
5
4
3
SW001
SW
1
2
6
Power(1.8K) 1.042V
Auto (3.0K) 1.435V
CONNECTOR
SW
1
2
4
0.1uF 50V
RIGHT(1.8K) 1.042V
GND
5
3
1
UDZSNP5.6B
LBADC2
MENU (3.0K) 1.435V
GND
5
4
SW005
1
UDZSNP5.6B
LBADC1
0.1uF 50V
LEFT (1.8K) 1.042V
C007
AUTO
MENU
GND
GND
LED
(AUTO) (MENU) (LEFT) (Power) (RIGHT)(ENTER)
OEM MODEL M2400
Size
絬 隔 瓜絪 腹
TPV
G3169-C-X-X-1-0080508
TPV MODEL
Rev
Key Component
02.KEY BOARD
PCB NAME
Date
45
( Top
Victory
Electronics
Thursday , June 19, 2008
Co . ,
Ltd. )
Sheet
715G3169-C
2
of
2
称爹
B
C
24” LCD Color Monitor
BenQ E2400HD
Troubleshooting Guide
Equipments and Tools Requirement
1.
Voltmeter.
2.
Oscilloscope.
3.
Pattern Generator.
4.
DDC Tool with and Compatible Computer.
5.
Alignment Tool.
6.
LCD Color Analyzer.
7.
Service Manual.
8.
User Manual.
46
24” LCD Color Monitor
BenQ E2400HD
Main Board
(1) No Power
No power
Press power key and look if the
picture is normal
NG
Please reinsert and make sure the
AC of 100-240V is normal
NG
OK
Reinsert or check the
power section
Check if the Pin 3, 4 of CN701 are 5V input
NG
Check power board
OK
Measure U701 Pin2=3.3V, U702 Pin2=1.8V
OK
NG
Replace U701, U702
Check if X401 oscillate waveforms are normal
NG
Replace X401
OK
Check U401
47
24” LCD Color Monitor
BenQ E2400HD
(2) No picture
No picture
Check if the Pin 3, 4 of CN701 are 5V input
NG
Check power board
OK
Measure U701 Pin2=3.3V, U702 Pin2=1.8V
OK
NG
Replace U701, U702
X401 oscillate waveforms are
normal
OK
NG
Replace X401
Check U401
OK
NG
Replace U401
Check if the sync signal from
computer is output and video cable
is connected normally
NG
Input the sync signal of computer, or
change the cable
48
24” LCD Color Monitor
BenQ E2400HD
(3) White screen
White Screen
Measure Q703 base
is low level?
NG
OK
X401 oscillate
waveform is normal
NG
OK
Check Q702, Q703 is broken
Replace X401
Check U401
or CN701 solder?
OK
NG
NG
Check Correspondent
component.
Check reset circuit of
U401 is normal
OK
NG
Replace Panel
Check Correspondent component.
49
Replace U401
24” LCD Color Monitor
BenQ E2400HD
Power Board
No power
Check CN902 PIN5.6 = 5V
NG
Check AC line volt 110V or 220V
OK
NG
Check AC input
Check the voltage of C905 (+)
OK
NG
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of IC901
OK
NG
Check R904, R905, Change IC901
Check the auxiliary voltage is bigger than
10V and smaller than 20V
OK
1) Check IC901
NG
2) Check R909/D901/C908 circuit
Check IC901 pin5 PWM wave
OK
NG
Check IC901
Check D908/D906/D907/ZD921/ZD922/Q903/ZD902
50
24” LCD Color Monitor
BenQ E2400HD
W / LED, No Backlight
Check Inverter input =12V
OK
NG
Check adapter and F801
Check ON/OFF signal
NG
OK
Check Interface board or main board
Check U801 PIN 11=5V
NG
OK
Change ON/OFF circuit
Check U801 PIN8/PIN9 PWM wave
OK
NG
Check U801
Check Q805, Q806 Drain wave
OK
NG
Change Q805, Q806
Check the output of T801
OK
NG
Change T801
Check connecter & lamp, feedback and protect circuit
51
24” LCD Color Monitor
BenQ E2400HD
Keypad Board
OSD is unstable or not working
N
Connect Key Pad Board
Is Key Pad Board connecting normally?
Y
N
Is Button Switch normally?
Replace Button Switch
Y
N
Is Key Pad Board normally?
Replace Key Pad Board
Y
Check Main Board
52
24” LCD Color Monitor
BenQ E2400HD
PCB LAYOUT
Main Board
53
24” LCD Color Monitor
BenQ E2400HD
Power Board
54
24” LCD Color Monitor
BenQ E2400HD
55
24” LCD Color Monitor
BenQ E2400HD
Appendix – Screw List / Torque
(TKRAA2NBW2BQDN/ TKRAA2NDW2BQDN)
Part No.
Type
Description
Quantity
Torque
0M1G 130 6120
M3*6
FOR MAIN FRAME & PANEL
4
3±0.5KGF. CM
0M1G 930 6120
M3*6
For HDMI CONNECTOR & MAIN FRAME
1
6±1 KGF. CM
0M1G1730 6120
M3*6
FOR ALL BOARDS & MAIN FRAME
7
6±1 KGF. CM
0M1G1740 10120
M4*10
FOR HINGE & REAR COVER
4
12±2KGF. CM
0Q1G 930 8120
Q3*8
FOR STAND BKT & BEZEL
2
6±1KGF. CM
0Q1G 930 8120
Q3*8
FOR POWER KEY BOARD & BEZEL
2
6±1KGF. CM
0M1G1730 8120
M3*8
FOR HEAT SINK
1
~
0M1G1730 8120
M3*8
FOR HEAT SINK
1
~
0M1G1730 8120
M3*8
FOR HEAT SINK
2
~
0M1G1740 10120
M4*10
FOR HINGE & STAND
2
6±2KGF. CM
0Q1G 130 8120
Q3*8
FOR BKT_BASE & BASE
3
6±2KGF. CM
0Q1G1040 10120
Q4*10
FOR HINGE & STAND
3
6±2KGF. CM
56