Acer RA19WAANU User manual

Model ID:RA19WAANU
Published by Wistron Corporation Printed in Taiwan © All rights reserved Subject to modification
04th-Sept.-2008

DBG DPBU IIDBG DPBU II
Table of Contents
Important Safety Notice------------------------------------------------------------------------------------- 01
01. Product Specification--------------------------------------------------------------------------------- 02
02. OSD Menu-----------------------------------------------------------------------------------------------08
03. Exploded Diagram
05.
Appendix I : User s Manual
------------------------------------------------------------------------------------- 10
Troubleshooting----------------------------------------------------------------------------------------19
08. Block Diagram------------------------------------------------------------------------------------------ 35
’
04. Assembly and Disassembly Procedures-----------------------------------------------------------12
06. Firmware Upgrade Procedure------------------------------------------------------------------------31
07. Writing EDID Procedure-------------------------------------------------------------------------------33
Appendix II : Spare Parts List
Appendix III: Software Pack
Service
Safety Notice
Any person attempting to service this chassis must familarize with the chassis and be
aware of the necessary safety precautions to be used when serving electronic equipment containing
high voltage.
Service Manual
ACER
ACER_LCD_X193HQ_SM080904V1

Product Announcement:
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
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.
!
Using Lead-Free solder to well mounted the parts.!
!The fusion point of Lead-Free solder requested in the
degree of 220 C.°
Important Safety Notice
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1
ACER X193HQ

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 non-
interlaced 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.
1. Product Specification
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
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
+/-
ITEM SPEC
Frequency Analog
H:31Hz~83Hz
V:56Hz~75Hz
Pixel Clock 135MHz(Max)
Analog :07Vp-pVideo Input
Display Pixels
640x480 (VGA)~1366x768(WXGA)
Signal Input
（Analog）
Syne Signal Separate SYNC for TTL (N or P)
Frequency Digital
H:31Hz~83Hz
V:56Hz~75Hz
Pixel Clock 135MHz(Max)
Video Input Analog :07Vp-p
Input Inpedance 75Ω
Signal Input
（Digital）
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
Connector
Audio Jack(Optional ) Audio Input 3.6 Φ
Power Consumption AC in 100V~240V) Active 30W(with Audio), active 25W ,Power Saving <2W
Front Empowering ,Auto Adjust ,Adjust (-),Adjust (+),,Menu ,Power
OSD Contrast,Brightness ,Position ,Clock ,Phase ,
Analog/Digital, RESET, Color ,Language select ,
Audio (Option ),ect.
Factory 21
User'sControl
Pre-Defined Timing
User 9
Plug and Play VESA DDC 2Bi
Power Saving VESA DPMS
Input Signal Counter Tolerance ≦H 1kHz,≦V 1Hz
2
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ACER X193HQ

1. Product Specification (continued)
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
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+/-
.
DVI-I/DVI-D(If using DVI-D cable,C1,C2,C3,C4,C5 is NC)
Note 1) Schmitt-Triggers Input, Supported 3.3V device
H(&V) sync output from PC
No. Symbol Item Min Normal Max Unit Remark
1Fh Scanning H orizontal Frequency 30 94 kH z M inimum range
2Fv Scanning V ertical Frequency 55 76 Hz M inimum range
3Vih Hi Level Input 2 5 Note 1)
4Vil Low Level Input 0 0.8 V Note 1)
5Video RGB Analog Video Level 0.0 0.7 1.0 V 75Ωto Ground
N ote 1 ) S ch m itt-T rigg ers Inpu t , S upported 3.3V device H(&V ) sync output from PC.
Video Input Signal
Pin Signal Pin Signal Pin Signal
1Red-Video 6Red-GND 11 NC
2Green-Video 7Green-GND 12 DDC-SDA
3Blue-Video 8Blue-GND 13 H-SYNC
4NC 9+5V 14 V-SYNC
5Connection Detect 10 GND 15 DDC-SCL
Pin Name Description
1 Red-Video Red video signal input
2 Green-Video Green video signal input
3 Blue-Video Blue video signal input
4 NC Not connect
5 Connection Detect Deteck VGA Cable have Connected or not
6 Red-GND Analog signal ground for the Red video
7 Green-GND Analog signal ground for the Green video
8 Blue-GND Analog signal ground for the Blue video
9 +5V +5V input from host system for the VESA DDC 2Bi function
10 Sync-GND Signal ground
11 NC Not connect
12 NCDDC-SDA SDA signal input for the VESA DDC 2Bi function
13 H-SYNC Horizontal signal input from the host system
14 V-SYNC Vertical signal input from the host system
15 DDC-SCL SCL signal input for the VESA DDC 2Bi function
Connector Pin Description
D-SUB Description
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
Pi
n Name Desription
1 RX2- TMDS link #0 channel #2 differential pair 16 HP Hot plugging
2 RX2+ TMDS link #0 channel #3 differential pair 17 RX0- TMDS link #0 change #1 differential pair
3 GND GND for no link share 18 RX0+ TMDS link #0 change #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-Sync H-Sync for analog interface
14 5V +5V input from host system for DDC 2B function C5 Analog GND Analog GND
15 DVI Connect Using as Detect Cable
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)
5Video
RGB Analog Video
Level 0.0 0.7 0.1 V 75Ω to Ground
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3
ACER X193HQ

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.
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 powered-
on,previously stored screen parameters for a pre-
defined 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) )
1.3.3.4 OSD adjustment
1. Product Specification (continued)
F unction L E 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.
K ey W hen no O SD display O SD D isplayed
1. T o display the O SD m enu on the screen.
2. T o select the O S D sub-M enu
>Speaker V olum e/M inus
(w ith A udio)
1. F orw ard selection of the O SD m enu.
2. Increase the value after sub-m enu selected.
<Speaker V olum e/Plus
(w ith A udio)
1. B ack-forw ard selection of the O SD m enu.
2. D ecrease the value after sub-m enu selected.
EEm pow ering M enu or sub.m enu EX IT/Scenario m ode
D esc rip tio n
MENU Menu Display
M enu or sub.m enu E X IT/A uto A djust function.
Auto A u to A d ju st F u n c tio n
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-POSITION The indication screen is horizontally moved right and left (1 Pixels pitch).
V-POSITION The indication screen is vertically moved up and down (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 Select the language used for the OSD menu among English , French ,
Italian , Deutsch and Spanish.
RECALL DEFAULTS All data copy from factory shipment data.
OSD DURATION Adjust OSD menu off time range from10~120 second.
POWER-SAVE Back light of the LCD panel is cut when the signal is not input (AC line
power consumption 2W or less).
INFORMATION The frequency of the horizontal / vertical synchronizing signal under the
input is indicated.
※NOTE : OSD MENU SEE APPENDIX A
4
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ACER X193HQ

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.
1.3.4.3 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
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.
1. Product Specification (continued)
Table 2. AC TO DC Converter Requirements
HV
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 [email protected] 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 1280x720@60Hz 44.955 59.940 74.176 ++
20 T213 1280x800@60Hz 49.702 59.810 83.500 ++
21 T278 1366x768@60Hz 47.712 59.790 85.500 --
Preset Timing Chart
V-Sync
(KHz)
Band Width
(MHz)
Polarit SourceItem No Resoulution H-Sync
(KHz)
Input Voltage Range The operating range shall be from 90 to 132 and 195 to 265 AVC
sinusoidal for all models specified.
Input Frequency Range Input power frequency range sha;; be from 47.5 to 63 Hz over the
specified input voltage range.
Power Consumption
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.
Line Fuse 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.
Initial Cold Start
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.
Inrush Current
The inrush current must be limited to 30A when operated at
120VAC, and 50A when operated at 220VAC. Inrush current is
measured at an ambient temperature of 25 oC, with the unit
temperature stabilized in the power-off.
Hot Start Cycle
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, 25 oC, and nominal input line
voltage.
Under Voltage
The power supply shall contain protection circuitry 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.
Line Transient
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.
AC to DC Converter Requirements
Tab le 2
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5
ACER X193HQ

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. Product Specification (continued)
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
other part of the display . For this test , the ambient
illumination must follow panel's specification.
1.4.5.4 Allowable Defects
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.
■
■
■
■
6
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ACER X193HQ

1.4.5.5 Defect Terminology
Table 3 gives the descriptive terms used in classifying
defects.
1.5 Optical Characteristics
Depends on the LCD supplier's spec. Details refer to QA
Inspection Spec.
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. Product Specification (continued)
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.
Dark / Spots / Lines
Spots or lines that appear dark in the display patterns and are
usually the result of contam ination. D efects do not vary in
siz e o r in te n sity (c o n tra st) w h e n c o n tras t v o lta ge is v a rie d.
Contrast variation can be achieved through the use of varying
gray shade patterns.
Bright Spots / Lines
Spots or lines that appear light in the display patterns.
D efects do not vary in size or intensity (contrast) w hen
contrast voltage is varied. C ontrast variation can be achieved
through the use of varying gray shade patterns.
Polarizer Scratch
W h e n th e u n it lig h ts, lin e s a p p ea r lig h t (w h ite ) w ith d is p lay
patterns dark and do not vary in size. P hysical dam age to the
polarizer that does not dam age the glass
Polarizer D ent
W hen the unit lights, spots appear light (w hite) w ith display
patterns dark and do not vary in size. Physical dam age to the
polarizer that does not dam age the glass.
R u b b in g L in e
H orizontal or diagonal lines that appear gray w ith the display
patterns dark and m ay have resulted from an “out of control”
rubbing process on the polyim ide or “waves” on the B EFs or
prism sheets.
N ew ton R ing Th e “rainbow ” effect caused by non-uniform cell thickness.
Mottling
W h e n th e u n it lig h ts, v a ria tio n / n o n – u n ifo r m ity
(s p lotc h in e ss ) a p p ea rs lig h t ( w h ite ) w ith th e d is p lay a n d
mightvary in size.
Dim Line W h e n th e u n it lig h ts, lin e (s ) in th e m o n ito r (v e rtic al) o r m a jo r
(horizontal) axis appear dim , but not completely on or off.
Cross Lines Off W h e n th e u n it lig h ts , lin e s in b o th th e m in o r a n d m a jo r a x is
do not appear.
Bright / D ark D ot A sub – pixel (R,G ,B dot) stuck off / on (electrical).
7
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ACER X193HQ

2.1 MAIN OSD MENU
Outline:
The description for control function:
2 OSD Menu
The description for control function:
Main
Menu
Ic o n
Sub
Menu
Ic o n
Sub Menu
Ite m Description Adjustm ent Range Reset Value
N/A Warm Set the color temperature to
warm white. N/A
N/A Cool Set the color temperature to
cool w hite. N/A
User /Red 0-100 100
User/Green 0-100 100
User/B lue 0-100 100
N/A English
N/A 
N/A Deutsch
N/A Francais
N/A Espanol
N/A Italiano
N/A 
N/A 
H.Position Adjust the horizontal
position of the OSD. 0-100 50
V. Position Ad ju st th e v e rtica l p o s itio n
of the OSD. 0-100 50
OSD
Tim eout Adjust the OSD timeout. 10-120 10
N/A Auto Config
Auto Adjust the H /V
Position, Focus and
Clock of picture.
(Only Analog Input Model)
N/A N/A
N/A Analog
Select input signal from
analog (D -Sub)
(Only Dual Input Model)
N/A N/A
N/A Digital
Select input signal from
digital (DVI)
(Only Dual Input Model)
N/A N/A
N/A DDC/CI
sw itch
Select the DDC/CI ON or
OFF N/A
The DD C/CI switch,
default is “ON” in
monitor.
N/A Information
Show the resolution, H /V
fre q u e n c y ,S N a n d
input port of current input
tim in g .
N/A N/A
N/A Reset
Clear each old status of
A u to -co n fig u ra tio n
and set the color
tem peratu re to W arm.
N/A N/A
N/A Exit Save user adjustm ent and
OSD disappear. N/A N/A
The color
temperature will be
set to cool.
M u lti-la n g u a g e s e le c tio n . N /A Thelanguagewill
be set to English
Adjusts Red/User/Green
Green/Blue intensity.
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8
ACER X193HQ

2. OSD Manu (continued)
9
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ACER X193HQ

3.1 Packing Exploded Diagram
3. Exploded Diagram
10
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ACER X193HQ

3.2 Product Exploded Diagram
3. Exploded Diagram (continued) 11
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ACER X193HQ

S4
S5
S3
S2
S1
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).
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).
Connect the cable between power board(P802)
and interface board (P301)
Connect the function key cable into interface
board(P304)
Connect the FFC cable into interface board
4.1 Assembly procedures:
4. Assembly and Disassembly Procedures
Plug in parallel direction
P301
P802
P304
Take the key function cable out from the hole
shown as photo
Fix the function key cable with a PVC tape
12
34
1
2
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
Angel < 5 degrees
12
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FFC
ACER X193HQ

Plug 2 lamp cables to the connectors of inverter
board.
Take lamp cables out from the holes shown as the
photo.
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).
6.5
±0.5
±0.5
Phillips-head
Torque= KGFxCM).
Take a key function board to hook with front
bezeland connect to key function cable.
Put a ear over n he ssembled nit nd
ress on force echanisms ocked nd irmly
attached.
rc ota ua
pmlaf
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; Torque=12
KGFxCM).
±
1
Assemble the hinge cover into both two sides
4. Assembly and Disassembly Procedures (continued)
S11
S10
S6
S8
S7
1
2
3
4
1
2
4
3
1
2
3
4
1
2
34
S9
S13
S12
Use a Phillips-head screwdriver screw 1 screw
(No1 Screw Size=M4x10; Torque=7.5~9.5KGFxCM).
1
13
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ACER X193HQ

Stick Vista and TC003 label on the correct
position the same as below photo
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.
.
Put accessories of stand, DVI cable, and
user’s manual ,power cable on specific
positions as photo below.
Move previous assembled parts into the carton
then stick Vista and feature label on the carton
then packing the carton
S18
S16
S15
S14
S17
4. Assembly and Disassembly Procedures (continued)
POWER CABLE
DVI CABLE
D-SUB CABLE
USER’S MANUAL
FEATURE LABEL
VISTA LABEL
S19
14
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ACER X193HQ
Stick a screen card on the front bezel with two
tapes.

4. Assembly and Disassembly Procedures (continued)
Use a Phillips-head screwdriver unscrew 4 screws
to release the stand base.
(No1~4 Screw Size=M4x10;
Torque=12 KGFxCM).±1
Disassemble the stand cover.
Put 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),
Take off two cushion foams
Take out all accessories including D-SUB
cable power cable, DVI cables, user’s
manual, and packing material from the carton.
(Note: It depends on whether users
returning the accessories.)
Open the carton with a proper tool.
S6
S5
S4
S3
S2
S1
S7
4.2 Disassembly procedures
1
2
34
FEATURE LABEL
VISTA LABEL
POWER CABLE
DVI CABLE
D-SUB CABLE
USER’S MANUAL
Use a Phillips-head screwdriver unscrew 1 screw
(No1 Screw Size=M4x10; Torque=7.5~9.5KGFxCM).
1
15
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ACER X193HQ

Put the dissembled monitor closed to by myself
Wedge your finger between the front bezel and the
panel, then pry up on the front bezel to
disengage the locking mechanism.
Insert steel rule between panel and front bezel
.Using properly force to let the locking
mechanism of front bezel and rear cover
separated
Separating all of the locking mechanism of the
front bezel in turn
S8
S13
S12
DOWN SIDE
LEFT SIDE
RIGHT SIDE
UP SIDE
S9
S11
S10
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
16
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4. Assembly and Disassembly Procedures (continued)
ACER X193HQ
Turn over the LCD monitor (screen faced up).

Unplug 2 lamp cables
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).
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
Hold one side of down side that had been
separated from front bezel
Use properly force to pull up front bezel
Take out lamp cables right through the No.1-2
square holes and separate the bracket chassis
module and LCD panel apart.
Unhook the key function board from front bezel,
disconnect the key function cable
S19
S18
S17
S15
S14
S16
1
2
3
4
12
17
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4. Assembly and Disassembly Procedures (continued)
ACER X193HQ

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).
Disconnect all of the cable
Use a Phillips-head screwdriver unscrewed the
No.1~2 screws to release the interface board.
(No1~2 screw size=M3x6; Torque=9~10KGFxCM).
Examine the panel surface accoring to inspection
criteria. Put it aside.
S20
S21
12
34
1
2
S23
S22
P301
P802
P304
FFC
18
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4. Assembly and Disassembly Procedures (continued)
ACER X193HQ

5. Troubleshooting
Does OSM display when you push
PROCEED buttom.
Yes
No Proceed "No OSM display" section.
Check if the sync signal from computer is
output and if the video cable is connected
normally.
OK
Proceed "checking the resolution change IC
movement" section.
NG Input the sync signal of computer, or change
the cable.
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.
5.1 No display on the screen (Screen is black and colour of LED is amber.)
19
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ACER X193HQ