Acer Lcd X193hq Sm080904v1 Model Id Ra19waanu 1m3x58

ACER

ACER_LCD_X193HQ_SM080904V1 Model ID:RA19WAANU

DBG DPBU II Service

Service Manual Table of Contents Important Safety Notice------------------------------------------------------------------------------------- 01 01. Product Specification--------------------------------------------------------------------------------- 02 02. OSD Menu-----------------------------------------------------------------------------------------------08 03. Exploded Diagram ------------------------------------------------------------------------------------- 10 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 : ’ s Manual Appendix II : Spare Parts List Appendix III: Software Pack

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. Published by Wistron Corporation

Printed in Taiwan ©

All rights reserved

04th-Sept.-2008



Subject to modification

Important Safety Notice

ACER X193HQ

Go to cover page Product Announcement: This product is certificated to meet RoHS Directive and

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

Lead-Free produced definition. Using approved critical

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

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.

degree of 220 ° C.

1

2

ACER X193HQ

1. Product Specification

Go to cover page

1.1 SCOPE

The LCD monitor consists of an interface board , a power

This document defines the design and performance

board , a function key board and two speaker(1W)(with audio)

requirements for a 19W inch diagonal , flat monitor

The interface board will house the flat control logic ,

.The display element shall be a WXGA(1366X768)

brightness control logic, audio function control (option), key

resolution TFT-LCD (Thin Film Transistor Liquid Crystal

function control, DDC and DC to DC conversion to supply the

Display).16.7M color images are displayed on the

appropriate power to the whole board and LCD flat , and

.Video input signals are analog RGB (0.7Vp-p). When

transmitting LVDS signals into LCD flat module to drive

the systemis powered-on , previously stored screen

the LCD display circuit .The power board will main

parameters for a pre-defined mode will be recalled if the

power DC5V to interface board and drive the two CCFLs (Cold

operating mode is one of stored in memory( 21 factory , 9

Cathode Fluorescent Tube).The interface board provides the

s timing ).This monitor operates normal by non-

power ON / OFF control over the whole monitor and control for

interlaced mode. DDC (Display Data Channel) function is

DPMS LED indicator to function key board.

DDC2Bi compliance Power saving function complies with

Monitor Specifications

the DPMS (Display Power Management Signaling) standard.

ITEM Signal

Input

SPEC Frequency

（Analog）

Analog H:31Hz~83Hz

1.2 GENERAL REQUIREMENTS

V:56Hz~75Hz Pixel Clock

1.2.1Test Condition

Video Input

135MHz(Max) Analog :07Vp-p 640x480 (VGA)~1366x768(WXGA)

Brightness level & contrast level max. Full white pattern test mode following spec. Warm up more than 1 hr, ambient light < 10 Lux , Luminance meter

Display Pixels

Signal

Input

Syne Signal

Separate

Frequency

Digital

（Digital）

V:56Hz~75Hz Pixel Clock

CA110 or BM7 or same equipment .

Video Input

1.2.2 Test Equipment Connector

AC

2135 video generator or higher.The use of other signal generators during qualification and production

Input

AC 100V~AC240V 10% 50/60Hz ,3pin AC Power Cord D-SUB 15 pin &DVI -D

Audio Jack(Optional )

Audio Input 3.6 Φ

AC in 100V~240V)

Active 30W(with Audio), active 25W ,Power Saving <2W

'sControl

Front

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

OSD

Contrast,Brightness ,Position ,Clock ,Phase , Analog/Digital, RESET, Color ,Language select , Audio (Option ),ect.

Pre-Defined Timing

Factory

This section describes the electrical requirement of the

640x480 (VGA)~1366x768(WXGA)

Input Connector

Plug and Play

1.3 ELECTRICAL

Analog :07Vp-p

Power Consumption

is acceptable provided the product complies with this specification.

135MHz(Max)

Input Inpedance 75Ω Display Pixels

The reference signal source is a calibrated Chroma

SYNC for TTL (N or P)

H:31Hz~83Hz

21 9 VESA DDC 2Bi

Power Saving

VESA DPMS

Input Signal Counter Tolerance

≦H 1kHz,≦V 1Hz

monitor block diagram in Figure 1 illustrates the various electrical sub-system. 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 U 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

3

ACER X193HQ

1. Product Specification (continued)

Go to cover page Pin

Signal

Pin

Signal

Pin

Signal

1

Red-Video

6

Red-GND

11

NC

2

Green-Video

7

Green-GND

12

DDC-SDA

3

Blue-Video

8

Blue-GND

13

H-SYNC

4

NC

9

+ 5V

14

V-SYNC

5

Connection Detect

10

GND

15

DDC-SCL

No.

Symbol

1

Fh

Horizontal Frequency

2

Fv

Vertical Frequency

3

Vih

Hi Level Input

4

Vil

0

Connector Pin Description

5

Video

Name 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

Blue-GND

31

Unit Remark

83

kHz Minimum range

56

75

Hz

Minimum range

2.0

5.0

V

Note 1)

0.8

V

Note 1)

0.1

V

75Ω to Ground

0.7

0.0

V id e o I n p u t S ig n a l N o.

9

Low Level Input RGB Analog Video Level

Max

H(&V) sync output from PC

Description

1

8

Min Normal

Note 1) Schmitt-Triggers Input, ed 3.3V device

D-SUB Description Pin

Item

Analog signal ground for the Blue video

+5V Sync-GND

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

Ite m

M in

N orm al

M ax

U n it

R em ark

1

Fh

S c a n n in g H o r iz o n ta l F r e q u e n c y

30

94

kH z

M in im u m r a n g e

2 3

Fv V ih

S c a n n in g V e r tic a l F r e q u e n c y H i L ev el In p u t

55 2

76 5

Hz

M in im u m r a n g e N o te 1 )

4

V il

L o w L ev el In p u t

5

V id e o

R G B A n a lo g V id e o L e v e l

0 0 .0

0 .7

0 .8

V

N o te 1 )

1 .0

V

7 5 Ω to G r o u n d

N o te 1 ) S c h m itt- T r ig g e r s I n p u t , S u p p o r te d 3 .3 V d e v ic e H ( & V ) s y n c o u tp u t fr o m P C .

+5V input from host system for the VESA DDC 2Bi function

10

Sym bol

Signal 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

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

Signal

Pin

Signal

Pin

signal amplitude for the respective color, when each

1

RX2-

13

NC

C1

Analog Red(NC)

2

RX2+

14

5V

C2

Analog Green (NC)

3

GND

15

DVI Connect

C3

Analog Blue (NC)

4

NC

16

HP

C4

Analog H-Sync (NC)

5

NC

17

RX0-

C5

GND

6

SCL

18

RX0+

7

SCA

19

GND

8

Analog V-Sync(NC)

20

NC

9

RX1-

21

NC

10

RX1+

22

GND

11

GND

23

RXC+

12

NC

24

RXC-

V corresponds to black , and 700 mV is the maximum

Signal

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 75Ω+/-1%

DVI-I/DVI-D

Connector

Pin

Description

which shall be resistive with a negligible reactive

Pi Pin

Name

Desription

n Name

Desription

1

RX2-

TMDS link #0 channel #2 differential pair

16 HP

Hot plugging

component .

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

5

NC

NC

20 NC

NC

6

SCL

Clock line for DDC interface

21 NC

NC

7

SDA

Data

22 GND

Clock shield

8

Analog V-Sync V-sync for anaterface

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

12

NC

NC

C3 Analog Blue

Analog Blue signal

13

NC

NC

14

5V

15

DVI Connect

line for DDC interface

+5V input from host system for

C5 Analog GND

The Horizontal Sync (HS) TTL signal is used to initiate the display of a horizontal line. HS may be either active

Green signal

C4 Analog H-Sync H-Sync for anaterface DDC 2B function

1.3.2.3 Synchronization ( Sync ) Signals

Analog GND

Using as Detect Cable

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

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

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 .

ACER X193HQ

4

1. Product Specification (continued)

Go to cover page 1.3.2.5 Sync Signal Loading

1.3.3.4 OSD adjustment

TTL input loading shall be equivalent to one TTL ITEM

input load. When logic 0 is asserted by a sync

AUDIO VOLUME

input , the maximum current source from any

CONTENT To increase or decrease the sound level

BRIGHTNESS

Back light Luminance of the LCD is adjusted.

single monitor sync input to the driver is 1.6 mA

CONTRAST

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

.When logic 1 is asserted , the maximum current

AUTO CONTRAST

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

source from the driver to any single monitor sync

CLOCK

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

input is 400 uA .

PHASE

The phase of the dot clock is adjusted.

H-POSITION

The indication screen is horizontally moved right and left (1 Pixels pitch).

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

V-POSITION

The indication screen is vertically moved up and down (1 Pixels pitch).

AUTO ADJUST

Clock system auto adjustment, about under 8 sec.

sync timing , pulse duration , or absence of sync ,

COLOR BALANCE

Select three kinds of modes. ( /6500 / 9300 ).

or abnormal input signal amplitude ( video and/ or

OSD POSITION

The OSD indication position can be adjusted.

sync too large or too small) , or any other

OSD LANGUAGE

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

anomalous behavior of a graphics card video

RECALL DEFAULTS All data copy from factory shipment data.

generator when changing modes , or when any combination of input signals is removed or replaced

OSD DURATION

Adjust OSD menu off time range from10~120 second.

POWER-SAVE

Back light of the LCD 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.

. Additionally , under these conditions , the monitor shall not cause damage to the driving source 1.3.3 Controls and Indicators

※ NOTE : OSD MENU SEE APPENDIX A

1.3.3.1 Power On / Off Switch

1.3.4 Monitor Modes and Timing Capability

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

1.3.4.1 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,

1.3.3.2 Power Indicator LED

the monitor shall display a warning screen

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.

Under no circumstances shall any combination of input signals cause any damage to the monitor . 1.3.4.2 Factory Assigned Display Modes

T a b le 1 F u n c tio n

indicating that the input frequency is out of range.

L E D

C o lo r

F u ll P o w e r

B lu e c o lo r

S le e p

O ra n g e c o lo r

There are 21 factory pre-set frequency video modes. These modes have a factory pre-set for all characteristics affecting front-of-screen

1.3.3.3 On-Screen Display

performance. When the system is powered-

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

M enu

D is p la y

O SD

d is p la y

O SD

D is p la y e d

1. To

d is p la y

th e

m enu

on

th e

sc re e n .

2 . T o s e le c t th e O S D s u b -M e n u

>

1 . F o rw a rd 2 . In c re a se

<

S p e a k e r V o lu m e /P lu s (w ith A u d io )

1 . B a c k -fo rw a rd s e le c tio n o f th e O S D m e n u . 2 . D e c re a s e th e v a lu e a fte r s u b -m e n u s e le c te d .

A u to

M e n u o r s u b .m e n u E X I T /A u to A d ju s t f u n c tio n .

E

A d ju s t F u n c tio n

E m p o w e rin g

mode is one of those stored in memory. If the operating mode is not one of those stored in memory, the monitor U 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 then may be saved as a defined mode. The

O SD

S p e a k e r V o lu m e /M in u s (w ith A u d io )

A u to

defined mode will be recalled if the operating

adjusted by the use of the front bezel controls and D e s c rip tio n

M EN U

on,previously stored screen parameters for a pre-

s e le c tio n o f th e O S D m e n u . th e v a lu e a fte r s u b -m e n u s e le c te d .

M e n u o r s u b .m e n u E X I T /S c e n a r io m o d e

monitor shall include all the preset video timings shown in the following page.(Please see Note.(3) )

ACER X193HQ

1. Product Specification (continued)

5

Go to cover page 1.3.4.3 Mode Recognition Pull-in

1.3.5.2 Video Stretching

The monitor shall recognize preset modes within a

The monitor shall contain provisions to “stretch” the

range of +/-1KHz whichever is less for horizontal ;

video signal, so that an input signal from the

and within +/-1Hz for vertical.

computer in any resolution smaller than 1366 x

1.3.4.4 Display Modes

768 is automatically expanded to fill the entire

In addition to the factory pre-set video modes,

screen.

provisions shall be made to store up to 9

1.3.5.3 Timing and Interface

modes. If the current mode is a mode, the

The controller supplied with the monitor shall

monitor shall select its previously stored settings.

control all timing. This controller shall

If the alters a setting, the new setting will be

adequately insulate the monitor from the computer,

stored in the same mode. The modes

so that no possible combination of input signals

are not affected by the pre-set command. If the

from the computer shall cause damage to the flat

input signal requires a new mode, storage of

or any other component of the monitor. The

the new format is automatically performed during

LCD interface shall the TFT

adjustment of the display (if required).(

standard.

Please see Note.(4) )

1.3.6 DC - AC Inverter Requirements

Preset timing Chart

The DC-AC inverter is on the power board. The frequencies used by the DC-AC inverter used to power the

Preset Timing Chart Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

H-Sync V-Sync Band Width Polarit Source (KHz) (KHz) (MHz) H V T103 640x480@60Hz 31.469 59.941 25.175 - - VESA T173 640x480@72Hz 37.861 72.809 31.500 - - VESA T109 640x480@75Hz 37.500 75.000 31.500 - - VESA T182 [email protected] 49.722 74.55 57.28 - - VESA T118 1024x768@60Hz 48.363 60.004 65.000 - - VESA T157 1024x768@70Hz 56.476 70.069 75.000 - - VESA T141 1024x768@75Hz 60.023 75.029 78.750 + + VESA T203 1152x870@75Hz 68.700 75.000 84.520 - T126 1152x864@75Hz 67.5 75 108 + + T161 1280x960@60Hz 60 60 108 + + VESA T179 1280x1024@60Hz 63.981 60.020 108.000 + + VESA T131 1280x1024@75Hz 79.976 75.025 135.000 + + VESA T339 1280x720@60Hz 44.955 59.940 + + 74.176 T213 1280x800@60Hz 49.702 59.810 + + 83.500 T278 1366x768@60Hz 47.712 59.790 - 85.500 No

backlight shall be chosen so as to prevent any noticeable

Resoulution

effects on the flat (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

Table 2 AC to DC Converter Requirements Input Voltage Range

Input Frequency Range

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. 5 to 63 Hz over the specified input voltage range. Power consumption for the monitor shall be less than 30W over the

1.3.5 Controller Requirements 1.3.5.1 General Requirements

Power Consumption

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 replace able.

The monitor shall include a controller capable of The power supply shall start and function properly when under full

converting the analog RGB signal from a standard

Initial Cold Start

load, with worst case conditions of input voltage, input frequenct, operating temperature, and cold backlight lamps.

SXGA resolution video controller in the U to a signal which can be displayed on the . The

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

controller will include a PLL, A/D converters, LVDS

120VAC, and 50A when operated at 220VAC. Inrush current is oC, with the unit

measured at an ambient temperature of 25 temperature stabilized in the power -off.

The power supply shall be damaged when switched ON for one

transmitter and other circuitry necessary to perform

Hot Start Cycle

its function. The PLL shall be stable enough to

operating for one hour at full load, 25

oC, and nominal input line

voltage.

ensure that a static image from the U is placed in the same physical location on the flat in

second and OFF for one second for seven consecutive after

The power supply shall contain protectio n circuitry such that the Under Voltage

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.

each frame.

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

801-5 (± 2KV) for the domestic U.S. version. The UPS power supply shall operate and comply with CE mark.

6

ACER X193HQ

1. Product Specification (continued)

Go to cover page 1.3.8 Display Communications Channel

The lamps shall extend a sufficient amount from

The monitor assembly shall provide a display

the edge of the light guide that sputtering over the

communications channel that conforms to VESA

life of the lamps shall not cause degradation of the

DDC2Bi hardware requirements. This configuration

luminance uniformity (such as non-illuminated

shall contain the 128-byte EDID file as specified by

bands along the edges of the display).

VESA EDID standard.The monitor should not write to

1.4.4.2 Lamps Startup Time

the EDID file for the first two minutes of operation

The backlight lamps shall start about 2 sec of the

following power-up UNLESS some action taken by the

time the monitor power switch is pressed or the

or the host U forces the write (for instance,

monitor is restarted from a power - down mode

requesting the serial number via the OSD).

.The starting time shall stay about 2 sec. for the

Furthermore, it is recommended that CMOS switches

minimum expected life of the lamps.

be incorporated to isolate the DDC IC from outside

Test conditions are as follows :

connections while the EDID Fault Management is

Ambient Light ----------------------

< 1.0 lux

being updated. This is to prevent corruption of the data

Temperature--------------------------

10℃

by attempts to read the data while it is being changed.

Inactive Time -----------------------

> 24 hours

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 ELECTRICAL 1.4.1 General Requirements

1.4.5 Defects 1.4.5.1 Visual Inspection The LCD shall be inspected with all pixels set to white,black , red , green , and blue. The color variation, brightness variation , and overall

The used as the display device shall be an

appearance must not be perceived as poor quality

WXGA 1366X768 resolution, 19 inch-wide TFT-LCD.

by Lite-On . Areas and / or parameters considered

This shall be approved for use in this monitor.

questionable shall be subjected to detailed

1.4.2 Timings The controller included with the monitor shall translate

measurements . 1.4.5.2 Display Degradation

all video timings from the U that meet the timing

Over the life of the product , variation of the

requirements listed in specification into timings

parameters specified in specification shall

appropriate for the . Under no circumstances

be maintained within reasonable limits.The

may the controller supply the with timings that

must not exhibit any significant defects while in

may result in damage. The controller shall insulate the

operation ( excluding the CCFL operation ).This

from the U , so that the shall always be

does not in any way change the warranty given by

driven per it's own specification regardless of the

the manufacturer .

timings being sent from the U. 1.4.3 Polarizer Hardness

1.4.5.3 Light Leakage Except for the active display area , there shall be

The outer face of the front polarizer shall be

no light emission visible from any angle from any

covered with a coating with a # 3 hardness value .

other part of the display . For this test , the ambient

1.4.4 Backlight Requirements 1.4.4.1 General Requirements

illumination must follow 's specification. 1.4.5.4 Allowable Defects

The backlight assembly shall be designed to

No cosmetic defects are allowed except those

field replacement at the customer site

specified below.The conditions of visual

or authorized service center. The lamps shall

inspections are as follows

have a continuous operating life of at least

For P19W Series.

40,000 hours at 25 degree. The operating life is

■Viewing distance is to be approximately 35-50cm

defined as having ended when the illumination of light has reached 50% of the initial value.

■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

Go to cover page 1.4.5.5 Defect Terminology

1.5 Optical Characteristics

Table 3 gives the descriptive used in classifying

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

defects.

Inspection Spec.

D a rk / S p o ts / L in e s

S p o ts o r lin e s th a t a p p e a r d a rk in th e d is p la y p a tte rn s a n d a re u s u a lly th e re s u lt o f c o n ta m in a tio n . D e fe c ts d o n o t v a ry in s iz e o r in te n s ity (c o n tra s t) w h e n c o n tra s t v o lta g e is v a rie d . C o n tra s t v a ria tio n c a n b e a c h ie v e d th ro u g h th e u s e o f v a ry in g g ra y s h a d e p a tte rn s .

B rig h t S p o ts / L in e s

S p o ts o r lin e s th a t a p p e a r lig h t in th e d is p la y p a tte rn s . D e fe c ts d o n o t v a ry in s iz e o r in te n s ity (c o n tra s t) w h e n c o n tra s t v o lta g e is v a rie d . C o n tra s t v a ria tio n c a n b e a c h ie v e d th ro u g h th e u s e o f v a ry in g g ra y s h a d e p a tte rn s .

P o la riz e r S c ra tc h

W h e n th e u n it lig h ts , lin e s a p p e a r lig h t (w h ite ) w ith d is p la y p a tte rn s d a rk a n d d o n o t v a ry in s iz e . P h y s ic a l d a m a g e to th e p o la riz e r th a t d o e s n o t d a m a g e th e g la s s

P o la riz e r D e n t

W h e n th e u n it lig h ts , s p o ts a p p e a r lig h t (w h ite ) w ith d is p la y p a tte rn s d a rk a n d d o n o t v a ry in s iz e . P h y s ic a l d a m a g e to th e p o la riz e r th a t d o e s n o t d a m a g e th e g la s s .

R u b b in g L in e N e w to n R in g

H o riz o n ta l o r d ia g o n a l lin e s th a t a p p e a r g ra y w ith th e d is p la y p a tte rn s d a rk a n d m a y h a v e re s u lte d fro m a n “ o u t o f c o n tro l” ru b b in g p ro c e s s o n th e p o ly im id e o r “ w a v e s ” o n th e B E F s o r p ris m s h e e ts . T h e “ ra in b o w ” e ffe c t c a u s e d b y n o n -u n ifo rm c e ll th ic k n e s s . W h e n th e u n it lig h ts , v a ria tio n / n o n – u n ifo rm ity (s p lo tc h in e s s ) a p p e a rs lig h t (w h ite ) w ith th e d is p la y a n d m ig h t v a ry in s iz e . 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 a l) o r m a jo r (h o riz o n ta l) a x is a p p e a r d im , b u t n o t c o m p le te ly o n o r o ff.

M o ttlin g D im L in e C ro s s L in e s O ff

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 d o n o t a p p e a r.

B rig h t / D a rk D o t

A s u b – p ix e l (R ,G ,B d o t) s tu c k o ff / o n (e le c tric a l).

1.4.5.6 Smudges, Streaks and Smears When viewing the 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 s will be referred to the Lite - On Corporate / Manufacturer Purchasing Agreement for disposition. 1.4.5.8 LCD Inspection Put LCD on inspection table and illuminate the with a daylight fluorescent lamp located above the surface such that the luminance at the LCD is between 1000 lux and 1500 lux .Defect limits are given in Table 4 . 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 in diameter, they must be at least 15mm apart.

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2 OSD Menu

Go to cover page 2.1 MAIN OSD MENU Outline:

The description for control function: The description for control function:

M a in M enu Ic o n

Sub Menu Ic o n

Sub Menu Ite m

N /A

W a rm

N /A

Cool

D e s c r ip tio n S e t th e c o lo r te m p e r a tu r e to w a r m w h ite . S e t th e c o lo r te m p e r a tu r e to c o o l w h ite .

U s e r /R e d U s e r /G r e e n

A d ju s ts R e d /U s e r /G r e e n G r e e n /B lu e in te n s ity .

U s e r /B lu e N N N N N N N N

/A /A /A /A /A /A /A /A

E n g lis h

D e u ts c h F r a n c a is E spanol Ita lia n o

H . P o s itio n V.

P o s itio n

OSD T im e o u t N /A

A u to C o n fig

N /A

A n a lo g

N /A

D ig ita l

N /A

D D C /C I s w itc h

N /A

In fo r m a tio n

N /A

R eset

N /A

E x it

M u lti-la n g u a g e s e le c tio n .

A d ju s t th e h o r iz o n ta l p o s itio n o f th e O S D . A d ju s t th e v e r tic a l p o s itio n o f th e O S D . A d ju s t th e O S D tim e o u t. A u to A d ju s t th e H /V P o s itio n , F o c u s a n d C lo c k o f p ic tu r e . (O n ly A n a lo g In p u t M o d e l) S e le c t in p u t s ig n a l fr o m a n a lo g (D -S u b ) (O n ly D u a l In p u t M o d e l) S e le c t in p u t s ig n a l fr o m d ig ita l (D V I) (O n ly D u a l In p u t M o d e l) S e le c t th e D D C /C I O N o r OFF S h o w th e r e s o lu tio n , H /V fr e q u e n c y ,S N a n d in p u t p o r t o f c u r r e n t in p u t tim in g . C le a r e a c h o ld s ta tu s o f A u to -c o n fig u r a tio n a n d s e t th e c o lo r te m p e r a tu r e to W a r m . S a v e u s e r a d ju s tm e n t a n d O S D d is a p p e a r .

A d ju s tm e n t R ange N /A N /A

R e s e t V a lu e T h e c o lo r te m p e r a tu r e w ill b e s e t to c o o l.

0 -1 0 0

100

0 -1 0 0

100

0 -1 0 0

100

N /A

T h e la n g u a g e w ill b e s e t to E n g lis h

0 -1 0 0

50

0 -1 0 0

50

1 0 -1 2 0

10

N /A

N /A

N /A

N /A

N /A

N /A

N /A

T h e D D C /C I s w itc h , d e fa u lt is “ O N ” in m o n ito r .

N /A

N /A

N /A

N /A

N /A

N /A

2. OSD Manu (continued)

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Go to cover page

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Go to cover page 3.1 Packing Exploded Diagram

3. Exploded Diagram

3. Exploded Diagram (continued)

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Go to cover page 3.2 Product Exploded Diagram

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4. Assembly and Disassembly Procedures

Go to cover page 4.1 Assembly procedures: Connect the cable between power board(P802)

S1

and interface board (P301)

S4

Connect the function key cable into interface

Take the key function cable out from the hole shown as photo Fix the function key cable with a PVC tape

board(P304) Connect the FFC cable into interface board

P802

P304 P301

FFC

Turn the monitor faced down and put it on the

S5 S2

bracket chassis module till both parts firmly

Use a Phillips-head screwdriver screwed the

Connect FFC cable to LCD . There are

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

two locks over here when plugging in should

chassis base firmly attached.(No1~3 screw

be noticed

size=M3x6; No4 screw size=M4x8; Torque=9~10KGFxCM). 1

2

4

3

Use a Phillips-head screwdriver screwed the

S3

No.1~2 screws till that interface board and bracket chassis base firmly attached. (No1~2 screw size=M3x6; Torque=9~10KGFxCM). Plug in parallel direction 1 2

Angel < 5 degrees

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4. Assembly and Disassembly Procedures (continued)

13

Go to cover page

S6

Take lamp cables out from the holes shown as the photo.

S10

Put a rear cover on the assembled unit and press on force mechanisms locked and firmly

attached.

4

4

3

3

2

2

1

S7

Plug 2 lamp cables to the connectors of inverter

Use a Phillips-head screwdriver screw 1 screw

S11

board.

1

(No1 Screw Size=M4x10; Torque=7.5~9.5KGFxCM).

1

Use a Hex-head and Phillips-head screwdriver

S8

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

Assemble the stand upper side to the rear cover

S12

through the way of screwing 4 screws till both

Hex Nut screws

units firmly attached.

Size=M3x8;Torque=6.5±0.5KGFxCM).

(No1~4 Screw Size=M4x10; Torque=12±

Torque=6.5±0.5KGFxCM).

1 KGFxCM).

1

2

1

2

3

4

S9

4

3

Take a key function board to hook with front bezeland connect to key function cable.

S13

Assemble the hinge cover into both two sides

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4. Assembly and Disassembly Procedures (continued)

Go to cover page Stick a screen card on the front bezel with two

S14

tapes.

S18

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

POWER CABLE

DVI CABLE

D-SUB CABLE

Stick Vista and TC003 label on the correct position the same as below photo

S15

’S MANUAL

S19 Take a LDPE+EPE bag to cover the LCD

S16

Move previous assembled parts into the carton then stick Vista and feature label on the carton then packing the carton

monitor.

FEATURE LABEL

VISTA LABEL

Take two cushion foams; one is held the left side

S17

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

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4. Assembly and Disassembly Procedures (continued)

15

Go to cover page 4.2 Disassembly procedures

S1

Open the carton with a proper tool.

S4

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

FEATURE LABEL

faced down),

VISTA LABEL

S2

Take out all accessories including D-SUB cable power cable, DVI cables, ’s manual, and packing material from the carton. (Note: It depends on whether s returning the accessories.)

S5

POWER CABLE

Disassemble the stand cover.

DVI CABLE

D-SUB CABLE

’S MANUAL

S6

Use a Phillips-head screwdriver unscrew 4 screws to release the stand base. (No1~4 Screw Size=M4x10; Torque=12±1KGFxCM).

Take off two cushion foams

S3

1

2

3

4

Use a Phillips-head screwdriver unscrew 1 screw

S7

(No1 Screw Size=M4x10; Torque=7.5~9.5KGFxCM).

1

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4. Assembly and Disassembly Procedures (continued)

Go to cover page Put the dissembled monitor closed to by myself

S8

S12

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

RIGHT SIDE

DOWN SIDE

UP SIDE LEFT SIDE

S9

Wedge your finger between the front bezel and the , then pry up on the front bezel to disengage the locking mechanism.

Turn over the LCD monitor (screen faced up).

S10 S13

S11

Insert steel rule between and front bezel .Using properly force to let the locking mechanism of front bezel and rear cover separated

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

Go to cover page

S14

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

Unplug 2 lamp cables

S17

S18

S15

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

Unhook the key function board from front bezel, disconnect the key function cable

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

S16

Use a Hex-head screwdriver unscrewed 4 screws to release the DVI and D-SUB connectors

S19

square holes and separate the bracket chassis module and LCD apart.

(No1~4Hex Nut screws Size=M3x8;Torque=4.5~6.5KGFxCM).

1 1

2

4

3

2

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4. Assembly and Disassembly Procedures (continued)

Go to cover page Examine the surface accoring to inspection

S20

Disconnect all of the cable

S23

criteria. Put it aside.

P802

P304 P301

FFC

S21

Use a Phillips-head screwdriver unscrewed the No.1~2 screws to release the interface board. (No1~2 screw size=M3x6; Torque=9~10KGFxCM).

1 2

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

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5. Troubleshooting

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

Does OSM display when you push PROCEED buttom.

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.

No

Proceed "No OSM display" section.

NG

Input the sync signal of computer, or change the cable.

Yes

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.

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5. Troubleshooting (continued)

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

Is backlight lit?

NG

Refer "Checking the backlight unit" section"

OK

Does computer output RGB video signals?

NG OK

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 OSM menu is display on screen when you push the "PROCEED" key.

NG OK

Check if the LCD video signal cable is connected between the Interface Board and LCD module.

Failure Point NG OK Proceed "Abnormal sreen" dection"

Next Page

The LCD video signal cable is disconnected.

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5. Troubleshooting (continued)

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Go to cover page 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

Check the I301 pin2 if voltage is 3.3V

NG

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

NG

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

OK

Check the I309 pin2 if voltage is 1.8V

OK

Check the I307 pin2 if voltage is 5V

OK

Failure Point 1) FB312 is open. 2) C353, C355 is short.

NG

OK

Check if the voltage between I307 pin2 and pin3 is above -0.7V Check if the Q311 pin2 of Power_ON/OFF signal that outputted by I305 pin10 is High level.

NG OK

NG

OK

Failure Point I307 is failure.

Failure Point 1) Printer wire between R411 and I305 pin10 is failure 2) I305 is failure. 3) R413,C366 is short

Failure Point 1) Printed wire between R311 pin3, R410, R412, I307 pin1 is failure.. 2) Q311 is failure.

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) NG

Check if the voltage on I305 pin 20 that is from 3.3V to 0.7V. Failure Point

OK NG OK

Failure Point

Check the P305 all LVDS signals.

I305 is failure Failure Point NG OK

Failure Point 1) The LVDS cable broke between P305 and LCD module. 2) LCD module is failure.

1) Printed wire broke between P305 and I305 LVDS signals. 2) I305 is failure.

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

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5. Troubleshooting (continued)

Go to cover page 5.3 Checking the back light unit

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

Failure Point NG OK

1) Power board of Inverter part failure.

Check the BKLT_EN signal of the DC input P301 pin 1 at TTL high level.

Failure Point NG OK

1) printed wire broke between P301 pin1, R303 and I305 pin 88. 2) I305 is failure.

Check the BKLT_ADJ signal of the input P301 pin3 from I305 pin86 is a PWM signal.

Failure Point NG OK

Failure Point 1) Back light unit of LCD module is failure. 2) Inverter Cable disconnect

1) printed wire broke between P301 pin3, R304,R357 and I305 pin11. 2) Q302 is failure.

5. Troubleshooting (continued)

ACER X193HQ

Go to cover page 5.4 Abnormal screen for VGA

Check the R, G, B video signal from computer input on P302 of video connector.

NG OK

Failure Point 1) No R, G, B video signals output from host computer, check computer. 2) Video signal cable disconnection.

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

Prpcess "Checking the resolution change IC movement" section.

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.

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5. Troubleshooting (continued)

Go to cover page 5.5 Abnormal screen (For the DVI)

Check the DVI video signal from computer input on P303 of DVI-I video connector.

Failure Point NG 1) No DVI video signals output from host computer, check computer. 2) DVI Video signal cable disconnection.

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. Failure Point NG

OK

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.

Check all LVDS signals being output to P305 from I305?

NG OK

Prpcess "Checking the resolution change IC movement" section.

Failure Point Printed wire broke between I305 and P305.

5. Troubleshooting (continued)

ACER X193HQ

Go to cover page 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)

NG

Failure Point

OK 1) Function key wire disconnection. 2) Function key wire is failure. 3) Function key board is failure.

Check the input TTL level of I305 pin20, 21 whether was changed when pressed function keys. (Refer to Table 1)

NG

OK

Failure Point I305 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

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Go to cover page 5.7 Abnormal plug and play operation for VGA

Confirm the host computer supplies DDC2B mode.

NG OK

Failure Point The host machine is not communicatiog in DDC2B mode.

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

NG OK

Failure Point TheVideo cable is failure.

Check the voltage on Q307 pin1 that is power DC 3.3V.

NG OK

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.

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

NG

Failure Point

OK The Video cable is failure.

Check the output signal of serial data / clock on I305 pin5, 8.

NG

Failure Point

OK I305 is failure. 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

5. Troubleshooting (continued)

ACER X193HQ

Go to cover page 5.8 Abnormal plug and play operation (For the DVI)

Confirm the host computersupplies DDC2 mode. Failure Point NG

The host machine is not communicatiog in DDC2 mode.

OK

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

NG OK

Failure Point The Video cable is failure.

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

Failure Point NG 1) Printed wire broke between P303 pin 14 and pin 16. 2) R340 is open. 3) C323 or C324 is short.

OK

Check the voltage on Q307 pin1 that is power DC 3.3 V.

Failure Point NG OK

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.

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

NG OK

Failure Point The Video cable is failure.

Check the output signal of serial data / clock on I305 pin 2.3

NG

Failure Point

OK I305 is failure. 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

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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.

NG

Failure Point

OK Video cable is failure.

Check the horizontal sync signal on I308 pin9 TTL level.

NG OK

Failure Point 1) Printed wire broke between P302 pin13 and I308 pin9. 2) FB304 , R309 is open. 3) D307 ,R319 or C322 is short.

Failure Point Process "Checking the resolution change IC movement" section.

5.9.2 Checking the control circuit of vertical sync pluse

Check the vertical sync signal on P302 pin14 TTL level.

NG

Failure Point

OK Video cable is failure.

Check the horizontal sync signal on I308 pin8 TTL level.

NG OK

Failure Point Process "Checking the resolution change IC movement" section.

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.

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5. Troubleshooting (continued)

Go to cover page 5.10 Checking the resolution change IC movement

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

NG

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

OK

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

NG

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

OK

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

Failure Point NG OK

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. NG

Failure Point 1) Printer wire broke between I305 pin 4 and C345 2) C345 is short. 3) I305 is failure.

OK

Check I305 pin 38,39,40 IIC signal.

Failure Point NG OK

Failure Point I305 failure.

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.

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5. Troubleshooting (continued)

Go to cover page 5.11 Checking the DC/DC converter circuit

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

NG OK

Failure Point 1) Power wire disconnection. 2) Power board is failure.

Check the 5V is input to I301 pin3.

NG

Failure Point

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

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

NG OK

Failure Point I301 is failure or C303,C304 short.

Check the 3.3V is input to I309 pin3.

NG OK

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

ACER X193HQ

Go to cover page 6.1 Hardware 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.

Connect VGA cable between monitor and kit Connect USB and VGA cable between PC and kit

Step-3Select ISP icon. 6.2 Realtek F/W Configuration: 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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ACER X193HQ

6. Firmware Upgrade Process (continued)

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

The screen will show “”

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.

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

ACER X193HQ

7. Writing EDID Process

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Go to cover page 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.

D-SUB PLUG

2. Writing VGA/DVI Process Chose the folder:”Acer-X193H-X203H-digital signal” or “AcerX193H-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

DVI EXTENDING SOCKET

USB A SOCKET PRINTER PLUG DVI EXTENDING SOCKET

USB A PLUG

1

4

2

5

3

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

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

cedid

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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

8. BLOCK DIAGRAM

A

B

C

D

E

F

G

1

2

3

3

4

Audio AMP (Option)

4

5

6

DC 5V

7

Inverter control

Speaker line input

5

Audio line input

8

9

10

LCD Flat

11

12

13

date& control.DC power

Interface Board

10

Flat Controller, DDC

9

Host Computer

8

11

12

13

Function Key Board

Function key input

7

Video Signal input& DDC

6

Audio Source

1W*2 Speaker (Option)

CCFT Drive

Interface Board

AC-IN

2

AC to DC Adapter DC to AC Inverter

1

PCB No.

A

B

C

D

E

F

G

ACER X203H

Go to cover page

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