Acer BV203HX Schematic

Acer Acer –LCD-BV203H

Service Manual

LCD Monitor Acer BV203H

- 0 -

1

Table of Contents

Important Safety Notice ......................................................................................01

01 Product Specification .......................................................................................03

02 Flat Panel Specification ....................................................................................18

03 Exploded Diagram ............................................................................................37

04 Troubleshooting..................................................................................................39

05 Spare Parts List .................................................................................................44

06 Schematics and Layouts....................................................................................45

07 Assembly and Disassembly .............................................................................48

Appendix : User’s manual

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd.

Acer BV203H Service Manual

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Acer Acer –LCD-BV203H

Important Safety Notice

1. Safety precautions

This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user.

Warning:

z This monitor should be operated only at the correct power sources indicated on the label

on the rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power Company.

z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This

monitor should only be repaired by a qualified technician.

z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause

electric shock to human bodies.

z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power

cable immediately and consult your closed dealer.

z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth.

Apply non-ammonia based cleaner onto the cloth, not directly onto the class screen.

z Do not place heavy objects on the monitor or power cord.

2. Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts, which do not have the same safety characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. Service notes

z When replacing parts or circuit boards, clamp the lead wires around terminals before

soldering.

z Keep wires away from high voltage, high temperature components and sharp edges. z Keep wires in their original position so as to reduce interference. z Adjustment of this product please refers to the user’ manual.

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Acer Acer –LCD-BV203H

V

Y

01 Product Specification

1. General:

Acer BV203H is designed with LVDS interface and dual (analog and digital signal) input, it featured with embedded universal AC power supplies and audio input. It’s a green product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor. The monitors shall automatically to display lower resolution video modes into 1600x900 full screen display. The image can be adjusted through OSD control.

1.1 Main Features

Features Specifications

Panel source

Maximum resolution

Back light system 4 CCFL (top & bottom edge side)

Actual Resolution display 1600 x 900

Pixel pitch

Display area 442.8 ( H ) x249.075 ( V )

Contrast ratio

Response time (Tr+Tf) 5ms (typ.),

Viewing angle

Input interface

Audio-In Reserved

Earphone NO

Speakers Reserved

Video Signal Inputs D-sub, DVI-D

Knobs and Indicators

Security Features Kensington® lock port, VESA® Wall-mountable interface, 100 mm

Power switch button, MENU button, Auto button, eColour, Down

80°(L)/ 80°(R), 80°(U)/80°(D) typ. CR>=10)

0.2768(H) mmx 0.2768(V)mm

׃1 (typ.)，600׃1(min.)

1000

Analog(D-sub 15 pin)

Digita(DVI-D connector )----option

button, Down button

LTM200KT01

1600 x 900

Power management Compatible with VESA,EPA,NUTEK,DPMS

Plug & Play

University AC power supply

For Non-EMEA

OSD language

For EMEA

1.2 Accessories

Items

Description

VGA

cable

1.8m 1.8m Multi English

● ● ● ●

2. Operation Specifications

Russia

DVI

cable

English (US), French, Italian, Finnish, Spanish, German, Dutch,

English (US)

English (US), French, Italian, Finnish, Spanish, German, Dutch,

, French, Italian, Simplified Chinese, Spanish, German a

Dutch, Traditional Chinese, Japanese

User’s

manual

Warranty

card

Quick-start

Guide

Installation

Guide

ESA

ES

Russian

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Acer Acer –LCD-BV203H

The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during

exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence.

2.1 Environmental conditions

Operating Specification

Temperature range

Relative humidity 20% to 80%

Altitude 0 to 3048M (10000 ft)

0°C to 40°C

Storage

Temperature range

Relative humidity 5% to 80%

Altitude 0 to 9144M (30000 ft)

-25°C to 60°C

2.2 Safety, EMC, Ergonomics and Compatibility Requirements

Items Description

UL/cUL CB TUV/GS CCC Other

Safety

● ● ● ●

FCC CE CCC VCCI-B

EMC

● ● ● ●

TCO99 TCO03

Ergonomics

● ●

Compatibilit

y

Power

Managemen

Windows

● ● ● ●

Energy Star

●

Windows 2000 Windows XP vista

2.3 Electrostatic Discharge Requirements

Item Condition Spec

Contact discharge : +4KV

Contact discharge :

Electrostatic Discharge IEC61000-4-2(EN55024)

Air discharge : + 8KV

Air discharge : +15KV

2.4 Reliability

Items Condition Spec Note

MTBF

CCFL Life time Luminance becomes 50%

Note1. Display an all WHITE field at mid Brightness and Contrast settings.

50,000 Hours

≧

≧ 40,000 Hours(min)

3. Electrical and Optical Characteristics and Performance

3.1 Main Power Supply

3.1.1 Input characteristics

●

Excluding

the LCD,

CCFL

Note1

Items Condition Spec Note

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Acer Acer –LCD-BV203H

AC Input Voltage range

AC Input Voltage rating Universal input full range 100~240Vac

AC input frequency range 90~264Vac 47~63Hz

AC input frequency rating 100~240Vac 50~60Hz

Universal input full range 90~264Vac

100Vac 1.2A(max) AC Input Current

240Vac 0.6A(max)

Inrush Current

100Vac,cold star,25°C 40A (max)

240Vac,cold star,25°C 60A(max)

AC-DC power Efficiency

Note2. Before each test, the buck capacitor need to be discharged. Before each test, it must be 10 minutes at least after the latest test. Hot star not component be damaged.

3.1.2 Output characteristics

Items Condition Spec Note

Ripple and Noise

DC Output Voltage

DC output loading capability

Rise Time

Dynamic load change

Hold-up time

Overshoot

Turn on delay time

DC output full loading ≥75%

+16V output <800mv

+5V output <500mv

16v loading:0.3A~2.0A 5v loading:0.75A~1.5A

5v loading:0.04A~1.5A

16V loading: 0A

Vcc5V/1.5A,

<20mS

AC input: 100V~240V >10mS

<10%

2S

Vcc16V:15.2V~17.6V

Vcc5V: 4.95V~5.45V

Vcc16V: 15.2V~20V

Vcc5V: 4.95V~5.45V

Vcc16V/2.0A

See Note2

See note 3

For system active

For power

saving or DC

off

Power management See Table-1

Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side, Measured band-width=20MHz.

3.1.3 Protection characteristics

Protection Condition Spec

OCP(Over current protection) nominal AC input 50W ( min )

SCP(short circuit protection)

OVP(Over voltage protection) OTP(Over temperature

Fuse protection

with auto-recovery

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Table-1

Status

Power On on on active

Power Saving

Power Off -- -- -- < 1W Off

3.2 Backlight Power Supply

: LTM200KT01

Panel

Items Specification

H-sy

nc

V-s y

nc

off on blanked < 2W Amber

on off blanked < 2W Amber

off off blanked < 2W Amber

Video Power LED

≤ 45W

BLUE

Lamp

Input Voltage 15.2V~18.2V

Input current

On/Off switch level

Brightness PWM duty

CCFL operating Voltage

CCFL Current

CCFL startup voltage

Operating frequency 40~80 KHz Protect delay time

Efficiency

3.2 Brightness output

4 CCFL

1.6A (Typ.), 2.0A (Max.)

5.5V≧Von≧ 2.0 V (on)

-0.3v ≤ Voff ≤ 0.8 V (off)

35%~100%

PWM:High=3.3V(3.0~3.6V),Low=0.0V

840Vrms (Typ.),

2.0 mA (min.)(With PWM Dim)

6.5mA (Typ.)

mA (Max.)

8.0

≧1700 Vrms (0˚C)

> 1 second

≥70%(with dummy load)

The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted.

Temperature : 25 ± 5°C Test pattern : white Video Resolution : 1600 x 900

Video input level : 700 mV ± 2% Warm-up time : 30 minutes

LCD Module BL

LTM200KT01 >=250 cd/m2

Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ BL cd/m

2

(as panel spec)

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Acer Acer –LCD-BV203H

3.3 White balance

Mode

Cool 9300K 0.283 ± 0.030 0.297 ± 0.030

Warm 6500K 0.313 ± 0.030 0.329 ± 0.030

User Panel While x Panel While y

The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)

Chromaticity Coordinate

x y

3.4 Brightness uniformity

The test standard conditions refer to Sec 3.3.

)(backlight points nine of luminance Min. )(backlight points nine of luminance Max.

%≥75

4. Input / Output Signal Specifications

4.1 Video signals

Items Condition Specification

Analog RGB signal

Sync

4.2 Signal Timing

4.2.1

D-SUB Inputs

Through D-SUB connectors, this unit can support F modes as below:

Mode Resolution Total

Input impedance = 75 Ohm 0.7Vp-p

Input impedance ≧ 1k Ohm

TTL level, Separate H/V-sync(+/-)

= 31.5 ~ 80 KHz, Fv=55 ~ 75Hz and SXGA display

H

VESA MODES

Horizontal Vertical

Nominal

Frequency

+/-0.5KHz

Sync

Polarity

Nominal

Frequency

+/-1Hz

Sync

Polarity

Nominal

Pixel Clock

(MHz)

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Acer Acer –LCD-BV203H

640*480@60Hz 800*525 31.469 N 59.941 N 25.175

VGA

SVGA

XGA

VESA

SXGA

MAX

WXGA 1280*800@60Hz 1680*831 49.702 N 59.810 P 83.500

WXGA+ 1600x900@60Hz 2122x934 55.99 N 59.946 P 118.250

640*480@72Hz 832*520 37.861 N 72.809 N 31.500

640*480@75Hz 840*500 37.500 N 75.000 N 31.500

800*600@56Hz 1024*625 35.156 P 56.250 P 36.000

800*600@60Hz 1056*628 37.879 P 60.317 P 40.000

800*600@72Hz 1040*666 48.077 P 72.188 P 50.000

800*600@75Hz 1056*625 46.875 P 75.000 P 49.500

1024*768@60Hz 1344*806 48.363 N 60.004 N 65.000

1024*768@70Hz 1328*806 56.476 N 70.069 N 75.000

1024*768@75Hz 1312*800 60.023 P 75.029 P 78.750

1152*864@75Hz 1600*900 67.500 P 75.000 P 108.000

1280*960@60Hz 1800*1000 60.000 P 60.000 P 108.000

720x400@70Hz 900*449 31.469 N 70.087 P 28.322 1280*720@60Hz 1650x750 44.955 N 59.940 P 74.176

1280*1024@60Hz 1688*1066 63.981 P 60.020 P 108.000

1280*1024@75Hz 1688*1066 79.976 P 75.025 P 135.000

640*480@66.7Hz 1152*870@75Hz 1568*909 68.775 N 75.00 N 84.520

832*624@75Hz 1152*667 49.725 N 74.550 N 57.283

864*525

35.000 P

66.667 P 30.240

Note: 1. Non-interlace signals only (An interlace signal cannot be display)

2. Please refer to F/W specification for more detail

3. Each frequency of Power Macintosh and Sun Ultra is a reference value

For DVD Player Input, Attached timing is supported: (Optional)

Mode Resolution (active dot)

DVD

Player

480P@60Hz 858x525 31.5 60.000 27.027 576P@50Hz 864x625 31.250 50.000 27.000 720P@60Hz 1650x750 45.000 60.000 74.250

Resolution

(total dot)

Horizontal

Frequency (KHz)

Vertical

Frequency (Hz)

4.2.2 Digital signals

TMDS Signal: (min) ±200mVpp@24Bit

4.2.3 DDC signals

DDC signals: 5V@50mA TTL level

4.3 Timing requirements

Scan Frequency Condition Specification

Horizontal

Vertical

Out of range

Sync polarity: (+) or (-)

Excluding Horizontal 31.5~80 KHz or Vertical 55-75 Hz

31.5 ~ 80 KHz.

55-75Hz

Message “Input Not Supported” on screen

Nominal Pixel

Clock (MHz)

Remark

4.4 DDC data

4.4.1 EDID Standard Compliance

EDID File Format : VESA’s EDID Standard Version #3, Revision #0, EDID Structure : Version #1, Revision #3.

EDID Data Table : See the attached table (for example)

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Acer Acer –LCD-BV203H

B203H VGA EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 04 72 94 00 00 00 00 00

1 00 00 01 03 08 2C 19 78 EA DE 95 A3 54 4C 99 26

2 0F 50 54 BF EF 80 71 4F 81 40 81 80 81 C0 81 00

3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8

4 35 00 BB F9 10 00 00 1D 00 00 00 FD 00 37 4B 1F

5 50 0C 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

7 00 42 32 30 33 48 0A 20 20 20 20 20 20 20 00 CS

B203H DVI EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 04 72 94 00 00 00 00 00

1 00 00 01 03 80 2C 19 78 EA DE 95 A3 54 4C 99 26

2 0F 50 54 BF EF 80 71 4F 81 40 81 80 81 C0 81 00

3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8

4 35 00 BB F9 10 00 00 1D 00 00 00 FD 00 37 4B 1F

5 50 0C 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

7 00 42 32 30 33 48 0A 20 20 20 20 20 20 20 00 cs

V203H VGA EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 04 72 95 00 00 00 00 00

1 00 00 01 03 08 2C 19 78 EA DE 95 A3 54 4C 99 26

2 0F 50 54 BF EF 80 71 4F 81 40 81 80 81 C0 81 00

3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8

4 35 00 BB F9 10 00 00 1D 00 00 00 FD 00 37 4B 1F

5 50 0C 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

7 00 56 32 30 33 48 0A 20 20 20 20 20 20 20 00 cs

V203H DVI EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 04 72 95 00 00 00 00 00

1 00 00 01 03 80 2C 19 78 EA DE 95 A3 54 4C 99 26

2 0F 50 54 BF EF 80 71 4F 81 40 81 80 81 C0 81 00

3 01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8

4 35 00 BB F9 10 00 00 1D 00 00 00 FD 00 37 4B 1F

5 50 0C 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

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7 00 56 32 30 33 48 0A 20 20 20 20 20 20 20 00 cs

4.5 Audio signal

Items Specification

Input impedance

Frequency response range

Signal to noise ratio

Output power

≧ 10K ohm

200Hz – 10kHz

≧ 40 dB ≧ 1.0 W + 1.0W ( 10%THD )

5. Function Specifications

All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. The standard conditions are:

Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All the specified modes

5.1 Panel general specifications

5.1.1

General

Supplier

Model name

Display Area 442.8 ( H ) x249.075 ( V )

Pixel Pitch 0.2768(H) mmx 0.2768(V)mm

specifications

SEC

LTM200KT01

Display Colors: 16.7 Million (6-bit + HI-- FRC)

Number of Pixel

Pixel Arrangement RGB vertical stripe

Brightness 300cd/m2 (Typ.) 250cd/m2 (Min.)

Contrast Ratio

Viewing Angle

Display Mode Normally White

Frame rate

Response Time Tr + Tf = 5ms Typical

Surface Treatment

Lamp 4 CCFL

Outline Dimension

5.1.2

LCD module defects

LCD module defects check follow to the IIS.

1600x900 pixels

1000

׃1 (typ.)

Hor:160°, Ver: 160° (Typical, CR>10)

60Hz

Anti-glare, Haze = 25%, Hard coating (3H)

463.3(W)x272.5(H)x17.5(D) Max

5.2 Keypad Function

5.2.1

Control buttons on the front bezel

CONTROL KEY KEYS FUNCTION

A. When OSD un-displays, press [AUTO] to perform auto-adjustment

[AUTO]

B. When OSD displays, press [AUTO] to return to previous level menu C. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD

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Acer Acer –LCD-BV203H

A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface. The

OSD interface uses “ACER e Color Management” and “User” to instead “Contrast” and “Brightness” separately. When press “ACER e Color Management” to show “e Color OSD”, and press “User” to show OSD interface

5.2.2

[MENU]

[►], [◄]

[e Color ]

[POWER] Power on or power off the monitor

Hot Key Operation

before. The translations of “ACER e Color Management” and “User” are always

English. B. When OSD displays, press [MENU] to perform function of menu icon that is highlight or enter next level menu

A. When “MENU OSD” displays, press these keys to change the contents of an

adjustment item, or change an adjustment value

B. When “MENU OSD” un-displays, if it is with audio, press [►] to show “Audio”

OSD and increase the volume, press [◄] to show “Audio” OSD and decrease the volume; else it has no use to press these keys.

A. When OSD un-displays, press [e Color] to show “e Color OSD”, and press again

the OSD can not disappear, but the time of “e Color OSD” disappearing is reset 10 second again.

B. When OSD disappear not including “e Color OSD”, press [e Color] to show “e

Color OSD” OSD, the OSD before disappears, but the parameters of it should be saved

HOT KEY OPERATION

FUNCTION

AUTO

e Color

◄

MENU POWER

►

Press [e Color ]

, and then press

[POWER] for DC power on.

FACTORY MODE

●

ON

OSD menu will be shown with “F” on the left top. Select “F” for entering factory mode.

5.3 OSD Structure

The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The

unit shall leave the factory with all OSD controls set to their default values.

First Second Third Control Range Default Value

Brightness

ACER e COLOR Management

User

Empowering

Technology

User mode

Text mode 50

Contrast

Standard

Graphics

Movie mode 56

Brightness

11

User mode

50

60

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Acer Acer –LCD-BV203H

Image

Position

Color

Language

Focus

Clock

Horizontal

Vertical

Warm (6500K)

Cool (9300K)

User

NO-EMEA EMEA

English English

Deutsch Deutsch

Español Español

简体中文

繁體中文

Français Français

Italiano Italiano

日本語

Hollands

Русский

Suomalai nen

ACM

---

--- ---

Red

Green

Blue

--- ---

0 ~ 100

Text mode 44 Standard

Graphics

Movie mode 77

OFF

Depend on each timing

50 ○1

50

Depend on each timing

80

English

77

97

Hor. Position

OSD

Input (Dual)

Input (Analg only)

Info

Reset

Exit

Notes; ○1 Clock default 50 is for Visa timing. Others depend on timing.

Ver. Position

OSD Timeout

Analog

Digital

DDCCI ON/OFF

Resolution

H. Freq

V. Freq

S/N

Analog/Digital Input

--- --- --- ---

---

--- --- ---

--- --- -- ON

ON

--- --- ---

--- --- -- ETL000….0000(22)

0 ~ 100 50

10~ 120 20

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Acer Acer –LCD-BV203H

6. SOP of PCBA ISP Programming

6.1 Operational condition:

Equipment: PC, ISP card, signal cable and power cable.

ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable Name of ISP program: ISP_Tool_v3.7.5.3

Manufacture of FW IC：PMC/SST/MX

6.2 Operational steps:

1.Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state

One port of ISP

program card

is connected to

PC print port.

2. Adjust ISP programming

Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select “Device”, next select manufacturer model of FW IC, which should be correspondent with that of PCBA FW IC. Double click Figure One.

FW IC

Model

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Acer Acer –LCD-BV203H

r

Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).

FW software

roote

Software

Checksum

Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.

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Acer Acer –LCD-BV203H

Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK

Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING”

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Acer Acer –LCD-BV203H

g

prog

After connecting, AC ON,

DC ON

OK

Open ISP program

OK

Choose manufacturer

and model of FW IC

OK

LOAD FW software

OK

Click Connect and enter

ISP MODE

OK

◆Flowin

chart

Click AUTO and RUN for

beginning programming

OK

Turn off power if

ramming is OK

7. BV203HQ EDID SOP

1、 Software a.port95nt.exe

b.Edidtool.exe c.X203H model

2、Hardware

a.PC（winXP or win2000）1PCS；

NG

Choose Config

and adjust

programming

b.Tool（EDID Card、VGA cable & DVI cable)

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Acer Acer –LCD-BV203H

3. .First set up Port95nt.exe

4 . Click next button continually then can finish setting.

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Acer Acer –LCD-BV203H

5. EDID Tool Set up

C

B

A

A : USB interface provide +5V DC power（No Power is ok ）

B : Connect DDC Card and PC with collateral interface ； C :VGA、DVI use different cable to link DDC and PC

6.

EDID ISP Card:

A

A：Collateral printing interface (connect with PC)

B:VGA interface (one VGA connect with PC to provide signal for monitor

B

the other one connect with PC VGA interface to write VGA EDID, Write EDID can without providing signal) C : DVI interface (connect with PC) D : HDMI Interface E : Connect DC power+5V

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7.

Writing EDID process :

Model name

BV203HQ

CheckSum

System time

BV203HQ

Model

name

SN

MFG

week

Result

State

information

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Acer Acer –LCD-BV203H

7.1 Choose File menu in main menu ，choose Auto W rite button，click S/N blank .

BV203HQ

7.2 Cloose the Model in main menu, and the password is 1234.

BV203HQ

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Acer Acer –LCD-BV203H

7.3.Choose the model, such as Acer，

7.4 Input S/N in the Blank, Eg：ETL7777777777777777777，the program can write directly

BV203HQ

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7.5 The program can CHECK VGA&DVI by itself after writing EDID

BV203HQ

7.6 If write successfully , you can see PASS in the right.

BV203HQ

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02. Flat Panel Specification

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