Acer RA19WAANU User Manual

ACER

DBG DPBU IIDBG DPBU II

Service Manual

ACER_LCD_X193HQ_SM080904V1

Model ID:RA19WAANU

Service

Table of Contents

Important Safety Notice------------------------------------------------------------------------------------- 01

01. Product Specification--------------------------------------------------------------------------------- 02

02. OSD Menu-----------------------------------------------------------------------------------------------08

03. Exploded Diagram

04. Assembly and Disassembly Procedures-----------------------------------------------------------12

05.

Troubleshooting----------------------------------------------------------------------------------------19

06. Firmware Upgrade Procedure------------------------------------------------------------------------31

07. Writing EDID Procedure-------------------------------------------------------------------------------33

08. Block Diagram------------------------------------------------------------------------------------------ 35

Appendix I : User s Manual

Appendix II : Spare Parts List

Appendix III: Software Pack

------------------------------------------------------------------------------------- 10

’

aware of the necessary safety precautions to be used when serving electronic equipment containing

Published by Wistron Corporation Printed in Taiwan © All rights reserved Subject to modification



Safety Notice

Any person attempting to service this chassis must familarize with the chassis and be

high voltage.

04th-Sept.-2008

Product Announcement:

Important Safety Notice

ACER X193HQ

Go to cover page

1

This product is certificated to meet RoHS Directive and

Lead-Free produced definition. Using approved critical

components only is recommended when the situation

to replace defective parts. Vender assumes no liability

express or implied, arising out of any unauthorized

modification of design or replacing non-RoHS parts.

Service providers assume all liability.

Qualified Repairability:

Proper service and repair is important to the safe,

reliable operation of all series products. The service

providers recommended by vender should being

aware of notices listed in this service manual in order

to minimize the risk of personal injury when perform

service procedures. Furthermore, the possible existed

improper repairing method may damage equipment or

Using Lead-Free solder to well mounted the parts.!

! The fusion point of Lead-Free solder requested in the

degree of 220 C.°

products. It is recommended that service engineers

should have repairing knowledge, experience, as well

as appropriate product training per new model before

performing the service procedures.

NOTICE:

To avoid electrical shocks, the products should be

!

connect to an authorized power cord, and turn off the

master power switch each time before removing the

AC power cord.

To prevent the product away from water or expose

!

in extremely high humility environment.

To ensure the continued reliability of this product,

!

use only original manufacturer’s specified parts.

To ensure following safety repairing behavior, put the

!

replaced part on the components side of PWBA, not

solder side.

To ensure using a proper screwdriver, follow the

!

torque and force listed in assembly and disassembly

procedures to screw and unscrew screws.

2

ACER X193HQ

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1. Product Specification

1.1 SCOPE
This document defines the design and performance
requirements for a 19W inch diagonal , flat panel monitor
.The display element shall be a WXGA(1366X768)
resolution TFT-LCD (Thin Film Transistor Liquid Crystal
Display).16.7M color images are displayed on the
panel.Video input signals are analog RGB (0.7Vp-p). When
the systemis powered-on , previously stored screen
parameters for a pre-defined mode will be recalled if the
operating mode is one of stored in memory( 21 factory , 9
users timing ).This monitor operates normal by non­interlaced mode. DDC (Display Data Channel) function is
DDC2Bi compliance Power saving function complies with
the DPMS (Display Power Management Signaling)
standard.

1.2 GENERAL REQUIREMENTS

1.2.1Test Condition
Brightness level & contrast level max. Full white

pattern test mode following spec. Warm up more than
1 hr, ambient light < 10 Lux , Luminance meter
CA110 or BM7 or same equipment .

1.2.2 Test Equipment
The reference signal source is a calibrated Chroma

2135 video generator or higher.The use of other
signal generators during qualification and production
is acceptable provided the product complies with this
specification.

1.3 ELECTRICAL This section describes the electrical requirement of the monitor block diagram in Figure 1 illustrates the various electrical sub-system.

The LCD monitor consists of an interface board , a power
board , a function key board and two speaker(1W)(with audio)
The interface board will house the flat panel control logic ,
brightness control logic, audio function control (option), key
function control, DDC and DC to DC conversion to supply the
appropriate power to the whole board and LCD flat panel , and
transmitting LVDS signals into LCD flat panel module to drive
the LCD display circuit .The power board will support main
power DC5V to interface board and drive the two CCFLs (Cold
Cathode Fluorescent Tube).The interface board provides the
power ON / OFF control over the whole monitor and control for
DPMS LED indicator to function key board.
Monitor Specifications

ITEM SPEC

Signal Input

（Analog）

Signal Input

（Digital）

Connector

Power Consumption AC in 100V~240V) Active 30W(with Audio), active25W ,Power Saving <2W

User'sControl

Pre-Defined Timing

Plug and Play VESA DDC 2Bi

Power Saving VESA DPMS

Input Signal Counter Tolerance ≦H 1kHz,≦V 1Hz

Frequency Analog

Pixel Clock 135MHz(Max)

Display Pixels

Syne Signal Separate SYNC for TTL (N or P)

Frequency Digital

Pixel Clock 135MHz(Max)

Video Input Analog:07Vp- p

Display Pixels 640x480 (VGA)~1366x768(WXGA)

AC Input AC 100V~AC240V 10% 50/60Hz ,3pin AC Power Cord

Input Connector D-SUB 15 pin &DVI -D

Audio Jack(Optional )

Front Empowering ,Auto Adjust ,Adjust (-),Adjust (+),,Menu ,Power

OSD Contrast,Brightness ,Position ,Clock ,Phase ,

Factory 21

User 9

H:31Hz~83Hz

V:56Hz~75Hz

Analog :07Vp-pVideo Input

640x480 (VGA)~1366x768(WXGA)

H:31Hz~83Hz

V:56Hz~75Hz

Input Inpedance 75Ω

Audio Input 3.6 Φ

Analog/Digital, RESET, Color ,Languageselect ,

Audio (Option ),ect.

1.3.1 Interface Connectors

1.3.1.1 Power Connector and Cables
The AC input shall have an IEC/CEE-22 type male
power receptacle for connection to mains power.
The power cord shall be with length of 1.8+/-0.005
meters.

1.3.1.2 Video Signal Connectors and Cable
The signal cable shall be 1.8 0.005 meters long.

+/­At the end of the cable shall be a molded-over,
shielded,triple row, 15 position, D-subminiature
connector. The CPU connection shall have captive
screw locks, which will be adequate for hand
tightening. The monitor connection may use small
screws.

Connector Pin Assignment
D-SUB

1. Product Specification (continued)

ACER X193HQ

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3

Pin Signal Pin Signal Pin Signal

Red-Video

1

Green-Video

2

Blue-Video

3

NC

4

Connection Detect

5

6

7

8

9

10

Red-GND

Green-GND

Blue-GND

+5V

GND

NC

11

DDC-SDA

12

H-SYNC

13

V-SYNC

14

DDC-SCL

15

Connector Pin Description
D-SUB Description

Pin Name Description

1 Red-Video Red video signalinput

2 Green-Video Green video signal input

3 Blue-Video Blue videosignal input

4 NC Not connect

5 Connection Detect Deteck VGA Cable have Connected ornot

6 Red-GND Analog signalground for the Red video

7 Green-GND Analog signalground for the Green video

8 Blue-GN D Ana log signal ground f or the Blue video

9 +5V +5V inputfrom host system forthe VESA DDC 2Bi function

10 Sync-GND Signalground

11 NC Not connect

12 NCDDC-SDA SDA signalinput for theVESA D DC 2Bifunction

13 H-SYNC Horizontalsignal input fromthe host system

14 V-SYNC Verticalsignal input fromthe host system

15 DDC-SCL SCL signal inputfor the VESA DDC 2Bi function

DVI-I/DVI-D(If using DVI-D cable,C1,C2,C3,C4,C5 is NC)

Pin Signal Pin Signal Pin Signal

1RX2- 13NC C1AnalogRed(NC)

2 RX2+ 14 5V C2 Analog Green (NC)

3 GND 15 DVI Connect C3 Analog Blue (NC)

4NC 16HP C4AnalogH-Sync(NC)

5 NC 17 RX0- C5 GND

6 SCL 18 RX0+

7 SCA 19 GND

8AnalogV-Sync(NC) 20NC

9RX1- 21NC

10 RX1+ 22 GND

11 GND 23 RXC+

12 NC 24 RXC-

DVI-I/DVI-D Connector Pin Description

Pin Name Desription

1 RX2- TMDS link #0 channel #2 differential pair 16 HP Hot plugging

2 RX2+ TMDS link #0 channel #3 differentialpair 17 RX0- TMDS link #0 change #1 differential pair

3 GND GND for no link share 18 RX0+ TMDS link #0 c hange #1 differential pair

4 NC NC 19 GND GND for no link share

5NC NC 20NC NC

6 SCL Clock line for DDC interface 21 NC NC

7 SDA Data line for DDC interface 22 GND Clock shield

8 Analog V-Sync V-sync for analog interface 23 RXC+ TMDS clock differential pair

9 RX1- TMDS link #0 change #1 differential pair 24 RXC- TMDS clock differential pair

10 RX1+ TMDS link #0 change #1 differential pair C1 Analog Red Analog Red signal

11 GND GND for no link share C2 Analog Green Analog Green signal

12 NC NC C3 Analog Blue Analog Blue signal

13 NC NC C4 Analog H-Syn c H-Syncfor analog i nterface

14 5V +5V input from host system for DDC 2B function C5 Analog GND Analog GND

15 DVI Connect Using as Detect Ca ble

Pi

n Name Desription

1.3.1.3 Audio Jack (option)
This jack shall connect the audio input from

host computer.

1.3.2 Video Input Signals
Video Input Signal Ranges

No. Symbol Item Min Normal Max Unit Remark

1 Fh Horizontal Frequency 31 83 kHz Minimum range

2 Fv Vertical Frequency 56 75 Hz Minimum range

3 Vih Hi Level Input 2.0 5.0 V Note 1)

4 Vil Low Level Input 0 0.8 V Note 1)

RGB Analog Video

5Video

Level 0.0 0.7 0.1 V 75Ω to Ground

Note 1) Schmitt-Triggers Input, Supported 3.3V device
H(&V) sync output from PC

No. Symbol Item Min

Fh Scanning Horizontal Frequency 30 94 kHz Minimum range

1

Fv Scanning Vertical Frequency 55 76 Hz Minimum range

2

Vih Hi Level Input 2 5 Note 1)

3

Vil Low Level Input 0 0.8 V Note 1)

4

Video RG B Analog Video L evel 0.0 0.7 1.0 V

5

No te 1 ) S chm itt-Trigg ers Inpu t , Supported 3.3V device H(&V) sync output from PC.

Video Input Signal

Normal

Max Unit Remark

75Ωto Ground

1.3.2.1 Video Signal Amplitudes
The three video inputs consist of Red ,Green , and Blue
signals, each with its own coaxial cable terminated at the
monitor. These video signals are analog levels, where 0
V corresponds to black , and 700 mV is the maximum
signal amplitude for the respective color, when each
signal is terminated by a nominal 75.0 ohms .For a given
monitor luminance levels are measured using this
defined video amplitud driving a monitor meeting the
termination requirements .The signal amplitude is not to
be readjusted to compensate for variations in termination
impedance.

1.3.2.2 Video Signal Termination Impedance
This analog video signal termination shall be 75 1%
which shall be resistive with a negligible reactive

component

.

1.3.2.3 Synchronization ( Sync ) Signals
The Horizontal Sync (HS) TTL signal is used to initiate
the display of a horizontal line. HS may be either active
high or active low, depending upon the timing .The
Vertical Sync (VS) TTL signal is used to initiate the
display of a new frame .VS may be either active high or
active low, depending on the timing

1.3.2.4 Sync Signal Levels
The monitor must accept sync signals from both 3.3 and
5 volt TTL logic families.The inputs shall sense a logic 0
when the input is 0.8 volt or less and shall sense a logic
1 when the input is 2.0 volts or greater. In addition to
these level requirements, there shall also be a minimum
of 0.3 volt hysteresis provided for noise immunity
(typically by using a Schmitt Trigger input ).That is , the
input level at which the monitor actually detects a logic 0
shall be at least 0.3 volt lower than the level at which it
actually detects a logic 1.If the monitor sync processing
circuits are designed around the 3.3 volt logic family
,then the sync inputs must be 5 volt tolerant .

Ω+/-

4

ACER X193HQ

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1. Product Specification (continued)

1.3.2.5 Sync Signal Loading

TTL input loading shall be equivalent to one TTL
input load. When logic 0 is asserted by a sync
input , the maximum current source from any
single monitor sync input to the driver is 1.6 mA
.When logic 1 is asserted , the maximum current
source from the driver to any single monitor sync
input is 400 uA .

1.3.2.6 Abnormal Signal Immunity
The monitor shall not be damaged by improper

sync timing , pulse duration , or absence of sync ,
or abnormal input signal amplitude ( video and/ or
sync too large or too small) , or any other
anomalous behavior of a graphics card video
generator when changing modes , or when any
combination of input signals is removed or replaced
. Additionally , under these conditions , the monitor
shall not cause damage to the driving source

1.3.3 User Controls and Indicators

1.3.3.1 Power On / Off Switch
The monitor shall have a power control switch
visible and accessible on the front of the monitor .
The switch shall be marked with icons per IEC 417
, # 5007 and # 5009.The switch shall interrupt the
DC supply to the monitor

1.3.3.2 Power Indicator LED
The monitor shall make use of an LED type

indicator located on the front of the monitor .

The LED color shall indicate the power states as
given in Table 1.

Fu nction LE D C olor

Full Pow er Blue color

Sleep O range color

Table 1

1.3.3.3 On-Screen Display
The Lite-ON On Screen Display system shall be
used , controlled by a Menu button. If the buttons
remain untouched for OSD turn off time while
displaying a menu , the firmware shall save the
current adjustments and exit. Also, if the video
controller changes video mode while the OSD is
active, the current settings shall be saved
immediately, the OSD turn off, and new video mode
is displayed.

Key W hen no OSD display OS D D isplayed

Menu Display

MENU

Speaker V olume/Minus

>

(with Audio)

Speaker V olume/Plus

<

(with Audio)

A uto A dju st F un ction

Auto

Em powering M enu or sub.m enu E XIT/Scenario m ode

E

D e sc rip tion

1. To display the OSD m enu on the screen.

2. To select the OSD sub-M enu

1. Forward selection of the O SD m enu.

2. Increase the v alue after sub-menu selected.

1. Back-forward selection of the O SD menu.

2. D ecrease the v alue after sub-menu selected.

M enu orsub.menu EXIT/Auto A djust function.

1.3.3.4 OSD adjustment

ITEM CONTENT

AUDIO VOLUME To increase or decrease the sound level

BRIGHTNESS Back light Luminance of the LCD panel is adjusted.

CONTRAST A gain of R , G and B signal is adjusted.

AUTO CONTRAST A gain of R , G and B signal auto adjust.

CLOCK The ratio of dividing frequency of the dot clock is adjusted.

PHASE The phase of the dot clock is adjusted.

H-POSITIO N The indication sc reen is horizontally mov ed right and left (1 Pixels pitc h).

V-POSITIO N The indication sc reen is vertically moved up and do wn (1 Pixels pitch).

AUTO ADJUST Clock system auto adjustment, about under 8 sec.

COLOR BALANCE Select three kinds of modes. ( USER /6500 / 9300 ).

OSD POSITION The OSD indication position can be adjusted.

OSD LANGUAGE

RECALL DEFAULTS All data copy from factory shipment data.

OSD DURATION Adjust OSD menu off time range from10~120 second.

POWER-SAVE

INFORMA TION

NOTE : OSD MENU SEE APPENDIX A

※

Select the language used for the OSD menu among English , French ,
Italian , Deutsch and Spanish.

Back light of the LCD panel is cut when the signal is not input (AC line
power consumption 2W or less).

The frequency of the horizontal / vertical synchronizing signal under the
input is indicated.

1.3.4 Monitor Modes and Timing Capability

1.3.4.1 Format and Timing
The monitor shall synchronize with any vertical
frequency from 56 to 75 Hz , and with any
horizontal frequency from 31 to 83KHz. If the input
frequency is out of the above – specified range,
the monitor shall display a warning screen
indicating that the input frequency is out of range.
Under no circumstances shall any combination of
input signals cause any damage to the monitor .

1.3.4.2 Factory Assigned Display Modes
There are 21 factory pre-set frequency video
modes. These modes have a factory pre-set for all
characteristics affecting front-of-screen
performance. When the system is powered­on,previously stored screen parameters for a pre­defined mode will be recalled if the operating
mode is one of those stored in memory. If the
operating mode is not one of those stored in
memory, the monitor CPU will select the PRESET
timing for a mode that is the next lowest in
horizontal scanning frequency to the mode being
currently used. The screen parameters may be
adjusted by the use of the front bezel controls and
then may be saved as a user defined mode. The
monitor shall include all the preset video timings
shown in the following page.(Please see Note.(3) )

1. Product Specification (continued)

ACER X193HQ

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5

1.3.4.3 Mode Recognition Pull-in
The monitor shall recognize preset modes within a

range of +/-1KHz whichever is less for horizontal ;
and within +/-1Hz for vertical.

1.3.4.4 User Display Modes

In addition to the factory pre-set video modes,
provisions shall be made to store up to 9 user
modes. If the current mode is a user mode, the
monitor shall select its previously stored settings.
If the user alters a setting, the new setting will be
stored in the same user mode. The user modes
are not affected by the pre-set command. If the
input signal requires a new user mode, storage of
the new format is automatically performed during
user adjustment of the display (if required).(
Please see Note.(4) )
Preset timing Chart

Preset Timing Chart

V-Sync

H-Sync

(KHz)
1 T103 640x480@60Hz 31.469 59. 941 25.175 - - VESA
2 T173 640x480@72Hz 37.861 72. 809 31.500 - - VESA
3 T109 640x480@75Hz 37.500 75. 000 31.500 - - VESA
4 T182 640x480@66.66Hz 35 66.66 30.24 - - MAC
5 T102 720x400@70Hz 31.469 70.087 28.322 - + VGA
6 T104 800x600@56Hz 35.156 56. 250 36.000 + + VESA
7 T116 800x600@60Hz 37.879 60. 317 40.000 + + VESA
8 T117 800x600@72Hz 48.077 72. 188 50.000 + + VESA
9 T110 800x600@75Hz 46.875 75. 000 49.500 + + VESA

10 T108 832x624@74.55Hz 49.722 74.55 57.28 - - VESA
11 T118 1024x768@60Hz 48.363 60.004 65.000 - - VESA
12 T157 1024x768@70Hz 56.476 70.069 75.000 - - VESA
13 T141 1024x768@75Hz 60.023 75.029 78.750 + + VESA
14 T203 1152x870@75Hz 68.700 75.000 84.520 - ­15 T126 1152x864@75Hz 67.5 75 108 + +
16 T161 1280x960@60Hz 60 60 108 + + VESA
17 T179 1280x1024@60Hz 63.981 60.020 108.000 + + VESA
18 T131 1280x1024@75Hz 79.976 75.025 135.000 + + VESA
19 T339
20 T213
21 T278

1280x720@60Hz 44.955 59.940 74.176
1280x800@60Hz 49.702 59.810 83.500
1366x768@60Hz 47.712 59.790 85.500

Band Width

(KHz)

(MHz)

Polarit

HV

++
++

--

SourceItem No Resoulution

1.3.5 Controller Requirements

1.3.5.1 General Requirements
The monitor shall include a controller capable of
converting the analog RGB signal from a standard
SXGA resolution video controller in the CPU to a
signal which can be displayed on the panel. The
controller will include a PLL, A/D converters, LVDS
transmitter and other circuitry necessary to perform
its function. The PLL shall be stable enough to
ensure that a static image from the CPU is placed
in the same physical location on the flat panel in
each frame.

1.3.5.2 Video Stretching
The monitor shall contain provisions to “stretch” the

video signal, so that an input signal from the
computer in any resolution smaller than 1366 x
768 is automatically expanded to fill the entire
screen.

1.3.5.3 Panel Timing and Interface
The controller supplied with the monitor shall
control all panel timing. This controller shall
adequately insulate the monitor from the computer,
so that no possible combination of input signals
from the computer shall cause damage to the flat
panel or any other component of the monitor. The
LCD panel interface shall support the TFT
standard.

1.3.6 DC - AC Inverter Requirements
The DC-AC inverter is on the power board. The
frequencies used by the DC-AC inverter used to power the
backlight shall be chosen so as to prevent any noticeable
effects on the flat panel (such as a rolling effect).

1.3.7 Power Supply Requirements
The AC to DC converter power supply for the monitor shall
be an external AC to DC converter ”brick” This brick shall
have an IEC receptacle for main power input and a pin - in

---socket for DC power out. The brick shall provide
sufficient power for both the monitor and the backlight
assembly, and shall meet requirements specified in Table

2.

Table 2. AC TO DC Converter Requirements

Tab le 2

o

C, with the unit

Input Voltage Range

Input Frequency Range

Power Consumption

Line Fuse

Initial Cold Start

Inrush Current

Hot Start Cycle

Under Voltage

Line Transient

AC to DC Converter Requirements

The operating range shall be from 90 to 132 and 195 to 265 AVC

sinusoidal for all models specified.

Input power frequency range sha;; be from 47.5to63Hzoverthe

specified input voltage range.

Power consumption for the monitor shall be less than30W over the

specified voltage and frequency ranges. In suspend or sleep mode

the power consumption will be less than 2W.

The AC input shall be fused and become electrically open as a result

on an unsafe current level. The fuse many not be user replaceable.

The power supply shall start and function properly when under full

load, with worst case conditions of input voltage, input frequenct,

operating temperature, and cold backlight lamps.

The inrush current must be limited to 30A when operated at

120VAC, and 50Awhen operated at 220VAC. Inrush current is

measured at an ambient temperature of 25

temperature stabilized in the power-off.

The power supply shall be damaged when switched ON for one

second and OFF for one second for seven consecutive after

operating for one hour at full load, 25oC, and nominal input line

voltage.

The power supply shall contain protectioncircuitry such that the

application of an input voltage below the minimum specified in this

table shall not cause damage to the power supply unit nor cause

failure of the input.

The power supply shalloperate within IEC 801-4 (± 1KV) and IEC

801-5 (± 2KV) for the domestic U.S. version. The UPS power

supply shall operate and comply with CE mark.

6

ACER X193HQ

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1. Product Specification (continued)

1.3.8 Display Communications Channel
The monitor assembly shall provide a display
communications channel that conforms to VESA
DDC2Bi hardware requirements. This configuration
shall contain the 128-byte EDID file as specified by
VESA EDID standard.The monitor should not write to
the EDID file for the first two minutes of operation
following power-up UNLESS some action taken by the
user or the host CPU forces the write (for instance,
requesting the serial number via the OSD).
Furthermore, it is recommended that CMOS switches
be incorporated to isolate the DDC IC from outside
connections while the EDID Fault Management is
being updated. This is to prevent corruption of the data
by attempts to read the data while it is being changed.

1.3.9 Firmware Update Function (same ISP function)
The update firmware need through from the D-Sub
connector, use DDC I2C bus to do update firmware.

1.4 PANEL ELECTRICAL

1.4.1 General Requirements

The panel used as the display device shall be an
WXGA 1366X768 resolution, 19 inch-wide TFT-LCD.
This panel shall be approved for use in this monitor.

1.4.2 Panel Timings
The controller included with the monitor shall translate

all video timings from the CPU that meet the timing
requirements listed in Panel specification into timings
appropriate for the panel. Under no circumstances
may the controller supply the panel with timings that
may result in damage. The controller shall insulate the
panel from the CPU , so that the panel shall always be
driven per it's own specification regardless of the
timings being sent from the CPU.

1.4.3 Polarizer Hardness
The outer face of the front polarizer panel shall be

covered with a coating witha#3hardness value

1.4.4 Backlight Requirements

1.4.4.1 General Requirements

The backlight assembly shall be designed to
support field replacement at the customer site
or authorized service center. The lamps shall
have a continuous operating life of at least
40,000 hours at 25 degree. The operating life is
defined as having ended when the illumination
of light has reached 50% of the initial value.

The lamps shall extend a sufficient amount from
the edge of the light guide that sputtering over the
life of the lamps shall not cause degradation of the
luminance uniformity (such as non-illuminated
bands along the edges of the display).

1.4.4.2 Lamps Startup Time
The backlight lamps shall start about 2 sec of the

time the monitor power switch is pressed or the
monitor is restarted from a power - down mode
.The starting time shall stay about 2 sec. for the
minimum expected life of the lamps.

Test conditions are as follows :

Ambient Light ---------------------- < 1.0 lux

Temperature-------------------------- 10
Inactive Time ----------------------- > 24 hours

1.4.5 Defects

1.4.5.1 Visual Inspection
The LCD panel shall be inspected with all pixels
set to white,black , red , green , and blue. The color
variation, brightness variation , and overall
appearance must not be perceived as poor quality
by Lite-On . Areas and / or parameters considered
questionable shall be subjected to detailed
measurements .

1.4.5.2 Display Degradation
Over the life of the product , variation of the

parameters specified in Panel specification shall
be maintained within reasonable limits.The panel
must not exhibit any significant defects while in
operation ( excluding the CCFL operation ).This
does not in any way change the warranty given by
the panel manufacturer .

1.4.5.3 Light Leakage
Except for the active display area , there shall be
no light emission visible from any angle from any

.

1.4.5.4 Allowable Defects

other part of the display . For this test , the ambient
illumination must follow panel's specification.

No cosmetic defects are allowed except those
specified below.The conditions of visual
inspections are as follows

For P19W Series.

■

Viewing distance is to be approximately 35-50cm

■

Ambient illumination is to be 300 to 700 lux.

■

Viewing angle shall be at 90 degree.

℃

■

Defects not apparent within one minute shall be

ignored.

1. Product Specification (continued)

ACER X193HQ

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7

1.4.5.5 Defect Terminology

Table 3 gives the descriptive terms used in classifying

defects.

Spots or lines that appear dark in the display patterns and are

Dark / Spots / Lines

BrightS pots / L ines

Polarizer Scratch

Polarizer D ent

R ub bing L in e

New ton R ing The “rainbow” effectcaused by non-uniform cell thickness.

Mottling

Dim Line

Cross Lines Off

Bright/ Dark D ot A sub – pixel (R,G,B dot) stuck off / on (electrical).

usually the resultof contamination. D efects do not vary in
size or inte ns ity (co n trast) w hen con tras t vo ltag e is v arie d.
Contrast variation can be achieved through the use of varying
gray shad e patterns.

Spo ts or lines that app ear light in the display p atterns.
Defects do not vary in size or intensity (contrast) w hen
contrast voltage is varied. Contrast variation can be achieved
through the use of varying gray shade patterns.

W hen the u nit lig hts , lines a pp ea r ligh t (w hite) w ith disp lay
patterns dark and do not vary in size. P hysical dam age to the
polarizer that does no t dam age the g lass

W hen the unit lights, spots appear light (white) w ith display
patterns dark and do not vary in size. P hysical dam age to the
polarizer that does no t dam age the g lass.

Horizontal or diagonal lines that appear gray w ith the display
patterns dark and may have resulted from an “out of con trol”
rubbing process on the polyimide or “w aves” on the BEFs or
prism sheets.

W hen the u nit lig hts , var iatio n / n on – unifo rmity
(sp lotc hin es s) ap p ear s ligh t (w hite) w ith the d isp lay a nd
might vary in size.

W hen the u nit lig hts , line( s) in th e m on itor (v er tical) o r m ajor
(horizontal) axis appear dim, but not com pletely on or off.

W hen the u nit lig hts , lines in both the m inor a nd m ajo r ax is
do notappear.

1.4.5.6 Smudges, Streaks and Smears
When viewing the panel oriented so as to maximize
reflected light , there shall be no visible smudging ,
streaking, smearing or other nonuniformity from
contaminants ,fingerprints,or defects in any of the visible
surfaces. This is independent of whether the unit is
operating or off .

1.4.5.7 Other Defects
Undefined defects that are considered to be rejectable
by Lite–On will be reviewed by Lite-On as they become
apparent. These panels will be referred to the Lite - On
Corporate / Manufacturer Purchasing Agreement for
disposition.

1.4.5.8 LCD Inspection
Put LCD panel on inspection table and illuminate the
panel with a daylight fluorescent lamp located above the
panel surface such that the luminance at the LCD panel
is between 1000 lux and 1500 lux .Defect limits are given
in Table 4 .

1.5 Optical Characteristics Depends on the LCD supplier's spec. Details refer to QA

Inspection Spec.

Average Diameter smaller of

(L+W)/2 or L/20+2W

Acceptable Number Minimum Separation

< 0.1mm Non countable N / A

0.1 mm ~ 0.3 mm 10 15 mm

0.31 mm ~ 0.5 mm 10 15 mm

0.51 mm ~ 1.25 mm 5 15 mm

1.26 mm ~ 2.5 mm 3 25.4 mm

2.51 mm ~ 3.75 mm 3 25.4 mm

Greater than 3.75 mm NONE Not applicable

Note : Allowable distance between spots of two sizes is the minimum separation

number for the smaller spot. Therefore, if there are two spots, 1.30mm and 0.4mm

indiameter,theymustbeatleast15mmapart.

8

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2.1 MAIN OSD MENU

Outline:

The description for control function:

The description for control function:

2 OSD Menu

Main

Sub

Menu

Menu

Ico n

Ic on

N/A Warm

N/A Cool

N/A E nglish
N/A
N/A Deutsch
N/A Francais
N/A Espanol
N/A Italiano
N/A
N/A

N/A Auto C onfig

N/A Analog

N/A Digital

N/A

N/A Information

N/A Reset

N/A Exit

Sub Menu

Ite m

User /R ed 0-100 100

User/Green 0-100 100

User/Blue 0-100 100







H.Position

V. Position

OSD

Timeout

DDC/CI

switch

Description

Set the color temperature to
warm white.
Set the color temperature to
cool w hite.

Adjusts R ed/User/G reen

Green/B lue intensity.

M ulti-la ng u ag e s ele ctio n . N /A

Adjust the horizontal
position ofthe OSD.
Ad just th e ve rtica l po sition
of the OSD.

Adjustthe OSD tim eout. 10-120 10

Auto Adjust the H /V
Position, Focus and
Clockof picture.
(Only Analog Input Model)
Selectinput signal from
analog (D-Sub)
(Only DualInputModel)
Selectinput signal from
digital (DVI)
(Only DualInputModel)

Selectthe DDC/CI ON or
OFF

Show the resolution,H/V
freq ue nc y ,SN and
input portof current input
tim ing .

Cleareach old status of
Au to-c on figur atio n
and setthe color
temperature to Warm.

Save useradjustment and
OSD disappear.

Adjustmen t

Range

The color

N/A

temperature w illbe
set to cool.

N/A

Thelanguagewill

be set to English

0-100 50

0-100 50

N/A N/A

N/A N/A

N/A N/A

The D DC/CIsw itch,

N/A

default is “ON” in

N/A N/A

N/A N/A

N/A N/A

ResetValue

monitor.

2. OSD Manu (continued)

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9

10

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3.1 Packing Exploded Diagram

3. Exploded Diagram

3.2 Product Exploded Diagram

3. Exploded Diagram (continued)

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11

12

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4. Assembly and Disassembly Procedures

4.1 Assembly procedures:

Connect the cable between power board(P802)

S1

S2

and interface board (P301)
Connect the function key cable into interface
board(P304)
Connect the FFC cable into interface board

P304

P301

FFC

Use a Phillips-head screwdriver screwed the

No.1~4 screws till that power board and bracket

chassis base firmly attached.(No1~3 screw

size=M3x6; No4 screw size=M4x8;

Torque=9~10KGFxCM).

P802

S4

S5

Take the key function cable out from the hole
shown as photo

Fix the function key cable with a PVC tape

Turn the monitor faced down and put it on the

bracket chassis module till both parts firmly

Connect FFC cable to LCD panel. There are

two locks over here when plugging in should

be noticed

S3

1

3

Use a Phillips-head screwdriver screwed the

No.1~2 screws till that interface board and bracket

chassis base firmly attached.

(No1~2 screw size=M3x6; Torque=9~10KGFxCM).

2

2

4

1

Plug in parallel direction

Angel < 5 degrees

S6

4. Assembly and Disassembly Procedures (continued)

Take lamp cables out from the holes shown as the

photo.

S10

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13

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rc ota ua

Put a ear over n he ssembled nit nd

ress on force echanisms ocked nd irmly

pmlaf

attached

.

S7

S8

Plug 2 lamp cables to the connectors of inverter

board.

Use a Hex-head and screwdriver

screwed the DVI and D-SUB connectors (No.1~4

Hex Nut screws

Size=M3x8;Torque=6.5 KGFxCM).

Torque= KGFxCM).

6.5

±0.5

Phillips-head

±0.5

S11

S12

4

3

2

1

Use a Phillips-head screwdriver screw 1 screw

(No1 Screw Size=M4x10;

Assemble the stand upper side to the rear cover

through the way of screwing 4 screws till both

units firmly attached.

(No1~4 Screw Size=M4x10;

KGFxCM).

1

Torque=7.5~9.5KGFxCM).

1

Torque=12

4

3

2

1

±

S9

2

4

3

1

Take a key function board to hook with front

bezeland connect to key function cable.

S13

2

3

Assemble the hinge cover into both two sides

1

4

14

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4. Assembly and Disassembly Procedures (continued)

S14

S15

Stick a screen card on the front bezel with two

tapes.

Stick Vista and TC003 label on the correct

position the same as below photo

S18

Put accessories of stand, DVI cable, and
user’s manual ,power cable on specific
positions as photo below.

POWER CABLE

D-SUB CABLE

USER’S MANUAL

DVI CABLE

S16

S17

Take a LDPE+EPE bag to cover the LCD

monitor.

Take two cushion foams; one is held the left side

of LCD monitor, and another is held the right side.

.

S19

Move previous assembled parts into the carton

then stick Vista and feature label on the carton

then packing the carton

FEATURE LABEL

VISTA LABEL

4.2 Disassembly procedures

Open the carton with a proper tool.

S1

FEATURE LABEL

Take out all accessories including D-SUB

S2

cable power cable, DVI cables, user’s
manual, and packing material from the carton.
(Note: It depends on whether users

returning the accessories.)

4. Assembly and Disassembly Procedures (continued)

P

S4

VISTA LABEL

ut returned unit on a protective cushion,then

remove LDPE+EPE bag.

Tear off tapes to remove the screen protector

card then turn over the LCD monitor (screen

faced down),

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15

S3

POWER CABLE

D-SUB CABLE

USER’S MANUAL

Take off two cushion foams

DVI CABLE

S5

S6

Disassemble the stand cover.

Use a Phillips-head screwdriver unscrew 4 screws

to release the stand base.

(No1~4 Screw Size=M4x10;

Torque=12 KGFxCM).±1

2

3

1

4

S7

Use a Phillips-head screwdriver unscrew 1 screw

(No1 Screw Size=M4x10;

Torque=7.5~9.5KGFxCM).

1

16

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4. Assembly and Disassembly Procedures (continued)

S8

S9

Put the dissembled monitor closed to by myself

RIGHT SIDE

UP SIDE

LEFT SIDE

edge your finger between the front bezel and the

W

panel, then pry up on the front bezel to
disengage the locking mechanism.

DOWN SIDE

S12

Separating all of the locking mechanism of the
front bezel in turn

S10

S11

Turn over the LCD monitor (screen faced up).

Insert steel rule between panel and front bezel

.Using properly force to let the locking

mechanism of front bezel and rear cover
separated

S13

Hold the one upside corner of the front bezel

after separating the upside of the front bezel
Using properly force to pull up front bezel that
will let the locking mechanism of left side, right
side and down side separated

4. Assembly and Disassembly Procedures (continued)

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17

S14

Hold one side of down side that had been
separated from front bezel
Use properly force to pull up front bezel

S17

S18

Unplug 2 lamp cables

Disconnect the FFC cable to the connector of
panel.
Use finger to push the lock according to arrow
direction then take out the FFC cable

S15

S16

Unhook the key function board from front bezel,

disconnect the key function cable

Use a Hex-head screwdriver unscrewed 4 screws

to release the DVI and D-SUB connectors

(No1~4Hex Nut screws

Size=M3x8;Torque=4.5~6.5KGFxCM).

S19

Take out lamp cables right through the No.1-2

square holes and separate the bracket chassis

module and LCD panel apart.

1

2

2

4

3

1

18

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4. Assembly and Disassembly Procedures (continued)

S20

S21

Examine the panel surface accoring to inspection

criteria. Put it aside.

Use a Phillips-head screwdriver unscrewed the

No.1~2 screws to release the interface board.

(No1~2 screw size=M3x6; Torque=9~10KGFxCM).

2

1

Disconnect all of the cable

S23

P802

P304

P301

FFC

S22

Use a Phillips-head screwdriver unscrewed the

No.1~4 screws to disassemble the power board.

(No 1~3 screw size=M3x6; No 4 screw

size=M4x8; Torque=9~10KGFxCM).

1

3

2

4

5. Troubleshooting

5.1 No display on the screen (Screen is black and colour of LED is amber.)

Does OSM display when you push

PROCEED buttom.

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19

When a signal isn't being inputted, it is

indicated with "No Signal Input". it is

indicated with "Out Of Range" at the time

of the frequency that it can't be

distinguished.

Check if the sync signal from computer is
output and if the video cable is connected

Proceed "checking the resolution change IC

Yes

normally.

OK

movement" section.

No Proceed "No OSM display" section.

NG

Input the sync signal of computer, or change

the cable.

20

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5. Troubleshooting (continued)

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5.2 Nothing displays on the screen (Screen is black and colour of LED is blue.)

Is backlight lit?

OK

Does computer output RGB video signals?

OK

Check OSM menu is display on screen

whenyoupushthe"PROCEED"key.

OK

NG

NG

NG

Refer "Checking the backlight unit" section"

Check the video cable for failure. Check the host for output signal is all

black or not.

1) Change pattern of video signal output on the host.

2) Reconnect the video cable.

3) Change the video cable.

Check if the LCD video signal cable is connected between the Interface

Board and LCD module.

Proceed "Abnormal sreen" dection"

OK

Next Page

NG

Failure Point

The LCD video signal cable is disconnected.

5. Troubleshooting (continued)

5.2 Nothing displays on the screen (Screen is black and colour of LED is blue)continued

Continue

Check the 5V power supply for

P305 pin 1,2,3.

NG

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21

Check the I301 pin2 if
voltage is 3.3V

Check the I309 pin2 if
voltage is 1.8V

OK

Check the input voltage level whether was changed when

pressed function keys on the P304 pin 5 (normal is high level,

when push buttom, generated 2.2V/1.9V/0.7V)

Check the I307 pin2 if
voltage is 5V

Check if the voltage

between I307 pin2 and

pin3 is above -0.7V

Failure Point
I307 is failure.

OK

OK

OK

OK

NG

NG

NG

NG

NG

Failure Point

1) Printed wire between R311 pin3, R410,
R412, I307 pin1 is failure..

2) Q311 is failure.

Proceed "Checking the DC/DC converter

Proceed "Checking the DC/DC converter

Failure Point

1) FB312 is open.

2) C353, C355 is short.

Check if the Q311 pin2 of

PANEL Power_ON/OFF

signal that outputted by I305

pin10 is High level.

OK

circuit" section.

circuit" section.

NG

Failure Point

1) Printer wire between R411
and I305 pin10 is failure

2) I305 is failure.

3) R413,C366 is short

OK

Check the P305 all LVDS signals.

NG

OK

Failure Point

1) The LVDS cable broke between P305
and LCD module.

2) LCD module is failure.

Check if the voltage on I305 pin 20 that is

Failure Point

I305 is failure

Failure Point

1) Printed wire broke between P305 and
I305 LVDS signals.

2) I305 is failure.

from 3.3V to 0.7V.

OK

NG

Failure Point

1) Printed wire broke between P304 pin 5
and I305 pin 20.

22

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5.3 Checking the back light unit

5. Troubleshooting (continued)

Is +22V supplied to inverter PWB ? (by the

Check the BKLT_EN signal of the DC input

Check the BKLT_ADJ signal of the input

P301 pin3 from I305 pin86 is a PWM

power board)

OK

P301 pin 1 at TTL high level.

OK

signal.

NG

NG

Failure Point

1) Power board of Inverter part failure.

Failure Point

1) printed wire broke between P301 pin1,
R303 and I305 pin 88.

2) I305 is failure.

OK

Failure Point

1) Back light unit of LCD module is failure.

2) Inverter Cable disconnect

NG

Failure Point

1) printed wire broke between P301 pin3,
R304,R357 and I305 pin11.

2) Q302 is failure.

5.4 Abnormal screen for VGA

Check the R, G, B video signal from computer

5. Troubleshooting (continued)

input on P302 of video connector.

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23

NG

OK

Check the R, G, B input video signals on I305

pin12, 14, 16 respectively that their level is 0.0 to

0.7Vp-p.

NG

OK

Check all LVDS signals being output to P305

from I305?

NG

OK

Failure Point

1) No R, G, B video signals output from host
computer, check computer.

2) Video signal cable disconnection.

Failure Point

In the case of the Red signal. (A Green and Blue
signal is the same path, too.)

1) Printed wire broke between P302 pin1 and

I305 pin16.

2) Video cable is failure.

3) FB302,FB306,R327 is open.

4) R326 is short or open.

5) C315 is short or open.

Failure Point

Printed wire broke between I305 and P305.

Prpcess "Checking the resolution change IC

movement" section.

24

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5.5 Abnormal screen (For the DVI)

Check the DVI video signal from computer input

5. Troubleshooting (continued)

on P303 of DVI-I video connector.

NG

OK

Check the DVI input video signals on I305 pin

2,3,4,5,6,7,47,48 respectively that differential

input voltage is 150 to 1200mV, and input

commond mode voltage is 3.3V.

NG

OK

Check all LVDS signals being output to P305

from I305?

NG

OK

Failure Point

1) No DVI video signals output from host

computer, check computer.

2) DVI Video signal cable disconnection.

Failure Point

In the case of the DVI_RX0+/- signal. (A
DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/­signal is the same path, too.)

1)Printed wire broke between P303 pin 17, 18 and

I305 pin 4. 15.

2) Video cable is failure.

3) R334, R335 open.

Failure Point

Printed wire broke between I305 and P305.

Prpcess "Checking the resolution change IC

movement" section.

5.6 Abnormal OSM display adjust problem

Check the input TTL level whether was changed when

pressed function keys on the P304 pin3, 5 (normal is high

level, when push buttom, generated low level plus)

5. Troubleshooting (continued)

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25

OK

Check the input TTL level of I305 pin20, 21 whether was

changed when pressed function keys.

(Refer to Table 1)

OK

Failure Point

I305 is failure.

NG

NG

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Failure Point

1) Printed wire broke among P304 pin3,R350 and I305 pin21

2) Printed wire broke among P304 pin5 ,R349 and I305 pin20

3) C358,C359 is short.

4) R374, R375 is short or open.

5) D327,D328 is short

26

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5.7 Abnormal plug and play operation for VGA

Confirm the host computer supplies DDC2B mode.

NG

OK

Check the voltage on P302 pin9 that is power DC 5 V.

NG

OK

Check the voltage on Q307 pin1 that is power DC

3.3V.

NG

OK

Check the signal on P302 pin12, 15 that is serial data

/ clock signal.

Failure Point

The host machine is not communicatiog in DDC2B mode.

Failure Point

TheVideo cable is failure.

Failure Point

1) Printed wire broke between Q307 pin3,D325 and
P302 pin9

2) R369,R372,R363 is short or open.

3) D325 is failure or Q307,I304 is failure.

NG

OK

Check the output signal of serial data / clock on I305

Failure Point

1) Printed wire broke among I305 pin5,8,R320,R321and
P302 pin12,15

2) I305 maybe failure.

3) R424,R425 is open.

4) R328 or R330 or C330 or C331 is open or short.

5) R320 or R321 or D308,D306 is open or short

pin5, 8.

OK

NG

Failure Point

The Video cable is failure.

Failure Point

I305 is failure.

5. Troubleshooting (continued)

5.8 Abnormal plug and play operation (For the DVI)

Confirm the host computersupplies DDC2 mode.

NG

OK

Check the voltage on P303 pin14 that is power DC 5 V.

Failure Point

The host machine is not communicatiog in DDC2 mode.

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27

NG

OK

Check the voltage on P303 pin 16 that is 4.5V.

NG

OK

Check the voltage on Q307 pin1 that is power DC 3.3

Check the voltage on P303 pin 6, 7 that is serial data /

V.

OK

clock signal.

NG

Failure Point

The Video cable is failure.

Failure Point

1) Printed wire broke between P303 pin 14 and pin 16.

2) R340 is open.

3) C323 or C324 is short.

Failure Point

1) Printed wire broke between VR307 pin3,D325 and

P303 pin14

2) R361,R372,R363 is short or open.

3) D325,Q307,I304 is failure.

OK

Check the output signal of serial data / clock on I305

pin 2.3

OK

Failure Point

1) Printed wire broke between I305 pin2,3,R344,R345
and P303 pin6,7.

2) I305 maybe failure.

3) R422,R423 is open or short.

4) R344,R345 is open or C337,C336 and D321,D320 is
short

NG

NG

Failure Point

The Video cable is failure.

Failure Point

I305 is failure.

28

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5. Troubleshooting (continued)

Go to cover page

5.9 Checking the interface circuit of sync signal

5.9.1 Checking the control circuit of horizontal sync pluse

Check the horizontal sync signal on P302 pin13 TTL

level.

OK

Check the horizontal sync signal on I308 pin9 TTL

level.

OK

Failure Point

Process "Checking the resolution change IC movement"
section.

5.9.2 Checking the control circuit of vertical sync pluse

NG

NG

Failure Point

Video cable is failure.

Failure Point

1) Printed wire broke between P302 pin13 and
I308 pin9.

2) FB304 , R309 is open.

3) D307 ,R319 or C322 is short.

Check the vertical sync signal on P302 pin14 TTL level.

NG

OK

Check the horizontal sync signal on I308 pin8 TTL

level.

NG

OK

Failure Point

Process "Checking the resolution change IC movement"
section.

Failure Point

Video cable is failure.

Failure Point

1) Printed wire broke between P302 pin14 and
I308 pin8.

2) FB305 or R308 is open.

3) D310,R318 or C313 is short.

5. Troubleshooting (continued)

5.10 Checking the resolution change IC movement

Check +3.3V supply on I305 pin41,I308 pin1,46.

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29

OK

Check +1.8V supply on I308 pin 19,17,40.

OK

Check X300 24MHz clock input to I305 pin 15 and 16 at TTL level.

OK

NG Proceed " Checking the DC/DC converter circuit" section.

NG Proceed " Checking the DC/DC converter circuit" section.

NG

Failure Point

1) Printed wire broke between X300 and I305 pin 15, 16.

2) C340, C341 is short or open.

3) X300 failure.

Check I305 pin 4 RST signal is low level at normal operation.

OK

Check I305 pin 38,39,40 IIC signal.

OK

Failure Point

I305 failure.

NG

Failure Point

1) Printer wire broke between I305 pin 4 and
C345

NG

Failure Point

1) Printed wire broke between I305 pin 38, 39, 40 and I303 pin 5, 6,7.

2) R351,R352,R353 is open.

3) R395,R396,R397 is open or short.

4) I303 is failure.

2) C345 is short.

3) I305 is failure.

30

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5.11 Checking the DC/DC converter circuit

Check the 5V is output from P301 pin 5,6

5. Troubleshooting (continued)

NG

OK

Check the 5V is input to I301 pin3.

NG

OK

Check the 3.3V is output from I301 pin2, 4.

NG

OK

Check the 3.3V is input to I309 pin3.

NG

OK

Failure Point

1) Power wire disconnection.

2) Power board is failure.

Failure Point

1) Printed wire broke between P301 pin 5,6
and I308 pin3.

Failure Point

I301 is failure or C303,C304 short.

Failure Point

1) Printed wire broke between I302 pin2. 4 and
I309 pin3.

Check the 1.8V is output from I309 pin2,4.

NG

OK

Failure Point

1) Printed wire broke between I301 pin2,4,I309 pin3,2,4
and I308

2) FB309,FB310 is open.

Failure Point

I309 failure or C368 short.

6. Firmware Upgrade Process

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31

6.1 Hardware Configuration

Connect VGA
cable between
monitor and kit

Connect USB
and VGA
cable between
PC and kit

6.2 Realtek F/W Configuration:

If it shows “No USB Device”, there is a problems with
communication .you should confirm your USB device
whether be detected by your PC device management or
reconnect the USB cable again.

Step-3Select ISP icon.

Step-1 Launch the utility of “ ”DebugTool_V6.2.exe

Step-2 Select “USB”

Step-4 Follow up the red square indication

Select “both”,”Checksum”,”Auto”,”Page Erase”,

Select “21” for Extend size.

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6. Firmware Upgrade Process (continued)

Step-5 Select “64K” icon to load firmware image. There are two

HEX files. You only need to select “64K” to choose

“X203H_AAS_F001-EMEA.hex” and

“X203H_AAS_F001-EMEA_Extend.hex” will be loaded

in “64~96” automatically.

The screen will show “PASS”

Check firmware version
Turn off the power,then press force on “ POWER ” and “ E ”
button at the same time then press on “ MENU ”button to
enter factory mode
Note: Please pay attention ,Don’t change any parameter
which is measured by precise machine before shipping out

Step-6Press button

7. Writing EDID Process

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33

1 Writing EDID Procedure
Hardware Configuration:

1.)Connect the PRINTER PLUG of DDC FIXTURE with the
printer port of Desktop PC. (Refer to figure 1)

2.)Plug USB A PLUG of DDC FIXTURE to USB socket of

Desktop PC (Refer to figure 2)

3.)Extend the DVI cable on DVI EXTENDING SOCKET of DDC

FIXTURE. (Refer to figure 3)

4.1)Connect the D-sub plug of Chroma with D-SUB PLUG of

DDC FIXTURE (Refer to figure 4)

4.2) Take a video cable then connect the D-SUB PLUG and the

D-sub socket of monitor. (Refer to figure 5)

5.)Connect the extended DVI cable to DVI socket of monitor

(Refer to figure 5)

6.)Re-confirm all the connectors are connected well.

DVI EXTENDING

SOCKET

USB A

SOCKET

DVI EXTENDING

SOCKET

PRINTER PLUG

D-SUB PLUG

USB A

PLUG

2. Writing VGA/DVI Process
Chose the folder:” ” or “Acer-

Acer-X193H-X203H-digital signal
X193H-X203H” it depends on which model you want to write.
Acer-X193H-X203H be used in the monitor only has VGA
port.
Acer-X193H-X203H-digital signal be used in the monitor both
have VGA and DVI port
Select the “Acer-M1&M3-XPEDID-DVI-.exe” to execute it

1

4

2

5

3

6

CAUTION: The timing of Chroma shall be setup at T254/ P41
before data recording. the detail setting parameter from
chroma .Please See below photo

3.Select Model: Key in password”cedid” then select model
which one you want to write EDID code that it depends on
panel type.

cedid

34

ACER X193HQ

7. Writing EDID Process (continued)

Go to cover page

4. Choose "WRITE" from menu then select "Scan S/N And
Write EDID And Test DDC”

5. Key in series number(22 characters) in the input column
and below empty column.
Press write button after key in S/N

6. When EDID was written successfully that will show below
message on the screen

G

F

E

D

C

B

8. BLOCK DIAGRAM

A

1234567 8910111213

AC IN-

()Option

Speaker

1W 2*

()Option

Audio

AMP

DC to AC Inverter

Interface Board

AC to DC Adapter

1234567 8910111213

CCFT Drive

Host ComputerAudio Source

Speaker

line input

Audio line input

Inverter control

DC 5V

LCD Flat Panel

PCB No.

Flat Panel Controller DDC,

Interface Board

Panel date control DC power&.

Video Signal input DDC&

Function Key Board

Function key input

G

F

E

D

C

B

A

Go to cover page

ACER X203H

35