Acer X193HQ Service manual

esponsibility and liability

Product Service Manual – X193HQ

Service Manual for acer: X193HQ

P/N: 9J.0NA11.xxx
9J.0NA12.xxx

Applicable for All Regions

Version: 001

Date:2008/07/15

Notice:

- For RO to input specific “Legal Requirement” in specific NS regarding to r
statements.

First Edition (July, 2008)
© Copyright Acer Corporation 2008. All Right Reserved.

- 1 -

Content Index

Abbreviations & Acronyms ............................................................................... 3

1. About This Manual ......................................................................................... 3

1.1. Trademark........................................................................................................ 3

2. Introduction .................................................................................................... 4

2.1. RoHS (2002/95/EC) Requirements ................................................................. 4

2.2. Safety Notice ................................................................................................... 4

2.3 .Compliance Statement.................................................................................... 4

2.4. General Descriptions ...................................................................................... 4

3. Product Overview........................................................................................... 5

3.1. Introduction ..................................................................................................... 5

3.2. Operational Specification ............................................................................... 6

3.3. Operational & Functional Specification ...................................................... 10

3.4. LCD Characteristics...................................................................................... 13

3.5. User Controls ................................................................................................ 14

3.6. Mechanical Characteristics .......................................................................... 15

3.7. Pallet & Shipment.......................................................................................... 16

3.8. Certification ................................................................................................... 16

3.9 Packing ........................................................................................................... 18

4. Disassembly /Assembly .............................................................................. 19

4.1. Exploded View.............................................................................................. 19

4.2. Disassembly /Assembly ............................................................................... 20

5. Level 1 Cosmetic / Appearance / Alignment Service ............................... 28

5.1 Alignment procedure (for function adjustment) .......................................... 28

5.2 Software / Firmware Upgrade Process......................................................... 31

5.3 EDID Upgrade Procedure .............................................................................. 36

5.4 OSD Operation Guide .................................................................................... 39

6. Level 2 Circuit Board and Standard Parts Replacement ......................... 43

6.1. Trouble Shooting Guide................................................................................ 43

6.2 Circuit Operation Theory ............................................................................... 46

6.3 Spare Parts List .............................................................................................. 49

Appendix 1 – Screw List / Torque................................................................... 50

Appendix 2 – Physical Dimension Front View and Side view..................... 51

Appendix 3 – Control Board ........................................................................... 53

Appendix 4 –Power Board .............................................................................. 54

Appendix 5 –Interface Board .......................................................................... 56

- 2 -

Abbreviations & Acronyms

1. About This Manual

This manual contains information about maintenance and service of acer products.
Use this manual to perform diagnostics tests, troubleshoot problems, and align the
acer product.

1.1. Trademark

The following terms are trademarks of Acer Inc. :
Acer

Importance

Only trained service personnel who are familiar with this Acer Product
shall perform service or maintenance to it. Before performing any
maintenance or service, the engineer MUST read the “Safety Note”.

- 3 -

2. Introduction

This section contains general service information, please read through carefully. It should be
stored for easy access place for quick reference.

2.1. RoHS (2002/95/EC) Requirements

– Applied to all countries require RoHS.

The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive)
is a legal requirement by EU (European Union) for the global electronics industry which sold in EU
and some counties also require this requirement. Any electrical and electronics products
launched in the market after June 2006 should meet this RoHS requirements. Products launched
in the market before June 2006 are not required to compliant with RoHS parts. If the original
parts are not RoHS complaints, the replacement parts can be non ROHS complaints, but if the
original parts are RoHS compliant, the replacement parts MUST be RoHS complaints.
If the product service or maintenance require replacing any parts, please confirming the RoHS
requirement before replace them.

2.2. Safety Notice

1. Make sure your working environment is dry and clean, and meets all government safety
requirements.

2. Ensure that other persons are safe while you are servicing the product.

DO NOT perform any action that may cause a hazard to the customer or make the product
unsafe.

3. Use proper safety devices to ensure your personal safety.

4. Always use approved tools and test equipment for servicing.

5. Never assume the product’s power is disconnected from the mains power supply. Check that
it is disconnected before opening the product’s cabinet.

6. Modules containing electrical components are sensitive to electrostatic discharge (ESD).
Follow ESD safety procedures while handling these parts.

7. Some products contain more than one battery. Do not disassemble any battery, or expose it to
high temperatures such as throwing into fire, or it may explode.

8. Refer to government requirements for battery recycling or disposal.

2.3 .Compliance Statement

Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications
and your local Laser Safety Compliance Requirements.

2.4. General Descriptions

This Service Manual contains general information. There are 3 levels of service:

Level 1: Cosmetic / Appearance / Alignment Service
Level 2: Circuit Board or Standard Parts Replacement
Level 3: Component Repair to Circuit Boards

- 4 -

3. Product Overview

3.1. Introduction

X193HQ is defined as 18.5”W LCD Monitor supports 1366x768@60Hz resolution with DPMS
(Display Power Management System) and acer eColor function. There are dual input types, D-sub,
DVI. X193HQ adopts AUO panel, M185XW01 V0 and scalar, RTD2525LH.

The features summary is shown as below,

* All panel spec. in Q201 definition depends on the variance of panel source.
* All spec. of monitor need to warm up at least 1hr.
* To test the “Contrast Ratio” and “Luminance” functions, the color status must be “User

preset” mode.

* 1. “Contrast Ratio”: Set “brightness” at 100, and “contrast” at 50.
* 2. “Luminance”: Set “brightness” at 100, and “contrast” at 100.

Feature items Specifications Remark

Panel supplier & module name AUO M185XW01 V0 TN, Normally white

409.8 mm(H) x230.4

Screen diagonal 470.1 mm(18.51”)
Display Format 1366(H) x 768 (V) Panel Display information
Pixel Pitch 0.3(H) x 0.3(V) (TYP.) per one triad

R/L:85/85 degrees (typ)

Viewing Angle (@ Contrast Ratio >= 10)

Analog interface with Scaling supported Yes
DVI interface with Scaling supported Yes For 1A1D model
Max resolution mode supported 1366 (H) x 768 (V)@60Hz
Number of Display Colors supported 16.7 Millions RGB 6-bit +HiFRC

Contrast Ratio 1000:1 (typ.), 600 (min)

Luminance

AC power input Yes 90-264 Volts, 47-63 Hz.
DC power input (with AC power adapter) No
DPMS supported Yes <1W
LED indicator for power status showed Yes Blue/Amber/None
OSD for control & information supported Yes

Multi-language supported for OSD Yes

Buttons control supported Yes

Flywheel control supported No
Scaling function supported Yes

- 5 -

and U/D: 80/80 degrees

(typ)

300 cd/m2 (typ.), 240 cd/m2
(min)

mm(V)

With 15-pin D-sub
connector

Test Condition: Set
Contrast at 50, Brightness
at 100, Color at User
preset

Test Condition: Set
contrast at 100, brightness
at 100 , color at User
preset.

EMEA
Non-EMEA

6 buttons including 1
monitor power on/off
control button.

Auto adjustment function supported Yes “Auto-Key” function

√

DDC function supported (EDID ver. 1.3) Yes DDC2B
DDC-CI support version 1.1 or later Yes DDC-CI
Audio speakers supported No
Audio Jack (input connector) supported No
Earphone Jack (input connector)

supported
Microphone function supported No
Mechanical Tilt base design Yes From -5 to +23 degree
VESA wall mounting design Yes
Mechanical Rotate design No
Mechanical Lift base design No
Kensington compatible lock design Yes

No

3.2. Operational Specification

3.2.1 Power supply

Item Condition Spec OK N.A Remark

Input Voltage range

Input Current range 90 ~ 264VAC ≤ 2.0 Arms
Power Consumption Normal “On” operation ≤30 W
DPMS DPMS “Sleep” state ≤ 2 W
DPMS DPMS “Off” state ≤ 1 W

Inrush Current

Earth Leakage Current 264 VAC/50Hz < 3.5 mA

Hi-Pot

Power Line Transient IEC1000-4-4 1KV

IEC1000-4-5 (Surge)

CCFL operation range 90 ~ 264VAC 3~8mA

Universal input full
range

110 VAC
220 VAC

1. 1500VAC, 1 sec

2. Ground test: 30A,
1sec

90~264VAC /47~63Hz

< 30 A (peak)
< 60 A (peak)

Without damage
< 0.1 ohm

Common: 2KV,
Differential: 1KV

√
√
√
√

√

√

√

√

√

√

LED: Blue
LED: Amber
LED: OFF

Cold-start

(on-line test)
(in-lab test)

Depends on panel
source

CCFL Frequency 90 ~ 264VAC 40KHz ~ 80KHz

Color: Black

Power cord

Length: 1800 +/- 50
mm

√

√

Depends on panel

source

- 6 -

3.2.2 Signal interface

Separate analog R/G/B

Item Condition Spec OK N.A Remark

√

√

√

√

√

√
√
√

√

√

√

√

√

√

For 15-pin D-sub

For 24-pin DVI-D

For 19-pin HDMI

For 15-pin D-sub

For 15-pin D-sub

Refer to VESA
VSIS Standard
V1R1

10KΩ for

application

Signal Cable

Pin assignment

Analog input

Sync input

Digital input

Color: Black

15-pin D-Sub

Length: 1800 +/- 30
mm

Color: Black

24-pin DVI-D

Length: 1800 +/- 50
mm

15-pin D-sub

See Note-1
connector
24-pin DVI-D

See Note-2
connector
19-pin HDMI

See Note-3
connector

Signal type
Level
Impedance

Signal type

700 mV (peak to peak)
75 Ohms +/- 1.5 Ohms
Separate H/V-sync

(Positive/Negative)
Logic High: 2.4V ~

Level

5.5V
Logic Low: 0V ~ 0.5V
(TTL level)

Impedance

Sync Pulse Width
(SPW)

Minimum 2.2KΩ(pull
down)

0.7µs < H-SPW
1H < V-SPW

Level 600mV for each

differential line

Impedance 50 Ohm TDR Scan

needed for DVI cable
and interface board

Note-1: The pin assignment of 15-pin D-sub connector is as below,

- 7 -

Pin Signal Assignment Pin Signal Assignment

1 Red video 9 PC5V (+5 volt power)
2 Green video 10 Sync Ground
3 Blue video 11 Ground
4 Ground 12 SDA
5 Cable Detected 13 H-Sync (or H+V)
6 Red Ground 14 V-sync
7 Green Ground 15 SCL
8 Blue Ground

Note-2: The pin assignment of 24-pin DVI-D connector is as below,

Pin Signal Assignment Pin Signal Assignment

1 TMDS RX2- 13 Floating
2 TMDS RX2+ 14 +5V Power
3 TMDS Ground 15 Ground
4 Floating 16 Hot Plug Detect
5 Floating 17 TMDS RX0­6 DDC Clock 18 TMDS RX0+
7 DDC Data 19 TMDS Ground
8 Floating 20 Floating

9 TMDS RX1- 21 Floating
10 TMDS RX1+ 22 TMDS Ground
11 TMDS Ground 23 TMDS Clock+
12 Floating 24 TMDS Clock-

3.2.3 Video performance

Item Condition Spec OK N.A Remark

Max. support Pixel rate

Max. Resolution

Rise time + Fall time

Settling Time after
overshoot /undershoot

Overshoot/Undershoot

135 MHz

1366 x 768

< 5 ms

(50% of minimum pixel

clock period)

< 5% final full-scale
value

< 12% of step function

voltage level over the
full voltage range

Both for analog and

√

√

digital inputs

Both for analog and

digital inputs

1366 x 768 @ 60Hz

√

(max. support
timing)

Refer to VESA

√

VSIS Standard

Refer to VESA

√

VSIS Standard
V1R1

3.2.4 Scan range

Item Condition Spec OK N.A Remark

Horizontal
Vertical

31-80KHz
55-76 Hz

√
√

V1R1

- 8 -

3.2.5 Plug & Play DDC2B DDC-CI Support

Item Condition Spec OK N.A Remark

DDC channel type

EDID

DDC2B

Version 1.3

√

Refer to S/W spec.

√

document to see

the detailed EDID

data definition.

DDC-CI

Version 1.1 or Later

Refer to S/W spec

√

3.2.6 Support Timings

Mode

Resolution

(active dot)

Resolution

(total dot)

640x480@60Hz 800 x 525

640x480@72Hz 832 x 520

Horizontal

Frequency

(KHz)

31.469 59.941 25.175

37.861 72.809 31.500

Vertical

Frequency

(Hz)

Nominal Pixel

Clock (MHz)

640x480@75Hz 840 x 500

MAC

640x480@66.66Hz

864x525

VESA 720x400@70Hz 900x449

800x600@56Hz 1024 x 625

SVGA

800x600@60Hz 1056 x 628
800x600@75Hz 1056x625

MAC 832x624@74.55Hz 1152x667

1024x768@60Hz 1344x806

XGA

1024x768@70Hz 1328x806

1024x768@75Hz 1312x800

MAC 1152x870@75Hz 1568x909

1152x864@75Hz 1600x900

VESA

1280x960@60Hz 1800x1000

1280x1024@60Hz 1688x1066

SXGA

1280x1024@75Hz 1688x1066

1280x720@60Hz 1650x750

VESA

1280x768@60Hz 1664x798

1280x768@75Hz 1696x805

WXGA

1280x800@60Hz 1680x831

1366x768@60Hz 1792x798

37.500 75.000 31.500

35 66.66 30.24

31.469 70.087 28.322

35.156 56.250 36.000

37.879 60.317 40.000

46.875 75.000 49.500

49.722 74.55 57.28

48.363 60.004 65.000

56.476 70.069 75.000

60.023 75.029 78.750

68.700 75.000 84.520

67.5 75 108

60 60 108

63.981 60.020 108.000

79.976 75.025 135.000

44.955 59.940 74.176

47.776 59.870 79.500

60.289 74.893 102.250

49.702 59.81 83.5

47.712 59.79 85.5

Note:

1. Show “Input Not Supported” warning message. When Vertical Frequency is over 76Hz or
under 55Hz, but Pixel Clock is between 25.175MHz and 135MHz, the monitor can show
image, and the same time has “Input Not Supported” warning message. If Pixel Clock is over
the range of 25.175MHz ~ 135MHz, the display is Black and show warning message.

2. If Hf /Vf is set in the range of 31KHz~80KHz and 55Hz ~76Hz, and Pixel Clock is set in the
range of 25.175MHz~135MHz, but is not the above Resolution, then it will display the nearest
mode.

- 9 -

3.3. Operational & Functional Specification

Test Condition:

at 100, Color at

√

system acoustic test

components (power,

3.3.1 Video performance

*All spec. of monitor need to warm up at least 1hr.

Item Condition Spec OK N.A Remark

Any input resolution

Resolution

Contrast ratio 600(min),1000(typ)

Brightness

Response time Rising + Falling time

Viewing angle

CIE coordinate of White

Display colors 16.7 Millions colors

modes which are under
1366x768

At R/G/B saturated
condition

At Contrast ratio = 10

At Contrast ratio = 10

3.3.2 Brightness Adjustable Range

Item Condition Spec OK N.A Remark

1366x768

300 cd/m2 (typ.),240(min)

On/off:5 ms
(typ.),8ms(max)

R/L: 85/85 degrees (typ.)
75/75 degrees (min)
U/D: 80/80 degrees (typ.)
70/70 degress(min)
(0.313, 0.329) +/- (0.03,

0.03)

√

Set Contrast at

√

√

√

√

√
√

50, Brightness

User preset.
Test
Condition : Set
contrast at
100 ,
brightness at
100 , color at
User preset.
Test
Equipment:
Westar TRD
100 or equal
level
equipment ;

6 bit+HiFRC

Brightness adjustable
range

3.3.3 Acoustical Noise

Item Condition Spec OK N.

Acoustical Noise

- 10 -

At default contrast level
(saturate point) & Full­white color pattern

At 30cm distance

At 5cm distance

(Max. brightness value –

Min. brightness value)

≧ 100 cd/㎡

≦ 22dB/A

≦35dB

√

√

√

Remark

A

Need to test if

is failed. Monitor
internal key

inverter, panel...)

20 Hz 0.0185(g2/Hz)

200Hz 0.0185(g2/Hz)

: 5 Minutes

3.3.4 Environment

Item Condition Spec OK N.A Remark

Temperature

Humidity

Altitude

Operating
Non-operating

Operating 10 ~ 90%

Non-operating 10 ~ 90%

Operating 12,000(ft)

Non-operating 40,000(ft)

0 ~ +40 ℃

-20 ~ +60 ℃

√
√

√

√

√

√

Non­condensing
Non­condensing
at 25°C (hold

3.5 hrs)
at -30 °C (hold
1 hr)

3.3.5 Transportation

Item Condition Spec OK N.A Remark

(1) Vibration

Test Specification:

1. Frequency Hertz 5 ~
250 HZ , PSD Level

Package, Non-Operating

0.0054 (G2/Hz)

2. Grms = 1.146

3. Sweep Time : 30
minutes per Axis

4. Axes : X,Y,Z
Test Spectrum:

√

(2) Unpackaged Vibration

Unpackaged, Non-

Operating

Duration
Axis : 3 axis
( Horizontal and Vertical
axis ,Z axis)

(3) Drop Package, Non-Operating

76 cm Height (MP stage)
(1 corner, 3 edges, 6

√

faces)

(4) Shock

Wooden package, Non­Operating

1. Amplitude : Half sine­wave 50G

2. Duration : 10 ms

3. Test Times : 1

√

4.Test Sides : All 6 Sides

3.3.6 Electrostatic Discharge Requirements

Item Condition Spec OK N.A Remark

Electrostatic Discharge IEC801-2 standard

Contact: 8KV
Air: 15KV

√

- 11 -

3.3.7 EMC

under 1dBuv for constant

(4)Output sound pressure

Item Condition Spec OK N.

A

Electric

TCO03

Magnetic

FCC part 15J class B

Band 1 < 10 V/m
Band 2 < 1 V/m
Band 1 < 200nT
Band 2 < 25nT
After Mass production

√

√

Remark

EMI

EN55022 class B

measure. Besides DNSF
and VCCI class-2 are

√

optional.

3.3.8 Reliability

Item Condition Spec OK N.A Remark

MTBF Prediction

CCFL Life time

Follow Qisda Generic
Spec
At 25℃, under 6.5mA

> 25,000 Hours

40,000 Hours (min)

√

√

Excluding
CCFL

See Note-4

Note-4: CCFL lifetime is determined as the time at which brightness of lamp is 50%. The typical

lifetime of CCFL is on the condition of 7.5mA CCFL current and 25±2℃.

3.3.9 Audio performance

Item Condition Spec OK N.

Preamp + Power amp
(1)Output power
(2)THD (@ 1W)
(3)S/N ratio

1 W rms/CH @ 1KHz

<1%

>40dB
Speaker Driver
(1)Nominal impedance
(2)Rated input power
(3)Frequency response

level

(5)Dimension of box

500~20KHz SPL-10dB

80 ± 3 dB (1W 0.5M)

8 ohm

1 W/CH

63x25x13mm2
Audio Control
(1)Volume range
(2)Mute

- 12 -

0 ~100 levels

On/Off

Remark

A

√
√
√

√
√
√

√

√

√
√

3.4. LCD Characteristics

3.4.1 The Physical definition & Technology summary of LCD panel

AUO M185XW01 V0

Item Condition Spec OK N.

LCD Panel Supplier AUO
Panel type of Supplier M185XW01 V0
Screen Diagonal 470.1 mm(18.5”W)
Display area Unit=mm 409.8(H) x230.4(V)
Physical Size Unit=mm 430.37(H) x254.6(V) x 16.5(D)
Weight Unit=gram 2000(Max)
Technology TN type
Pixel pitch Unit=mm 0.3(H) x 0.3(W)
Pixel arrangement R/G/B vertical stripe
Display mode Normally White
Support color 16.7Millions colors

√
√
√
√
√
√
√
√
√
√
√

3.4.2 Optical characteristics of LCD panel

AUO M185XW01 V.0

Item Unit Conditions Min. Typ. Max. Remark

[degree]

Viewing Angle

[degree]
[degree]
[degree]

Contrast ratio Normal Direction 600 1000

[msec] Rising Time - 3.6 5.7

Response Time

[msec] Falling Time - 1.4 2.3
[msec] Rising + Falling - 5 8

Color / Chromaticity
Coordinates (CIE)

White

Luminance Uniformity

White Luminance @ CCFL

[%] 9 points

[cd/m2]

7.50mA (center)
Crosstalk (in 75Hz) [%] 1.5

* The test methods for the above items’ definition, please refer to the relative panel specification.

Horizontal (Right)
CR = 10 (Left)
Vertical (Up)
CR = 10 (Down)

75
75
70
70

85
85
80
80

-

-

-

-

Red x 0.618 0.648 0.678
Red y 0.309 0.339 0.369
Green x 0.262 0.292 0.322
Green y 0.573 0.603 0.633
Blue x 0.113 0.143 0.173
Blue y 0.040 0.070 0.100
White x 0.283 0.313 0.343 Color Coordinates (CIE)
White y 0.299 0.329 0.359

measurement

75 80

240 300 -

Remark

A

Per one triad

6 bit + HiFRC

- 13 -

3.5. User Controls

3.5.1 User’s hardware control definition

Item Condition Spec OK N.A Remark

Power button
Auto button(Exit button)
Right/Inc. button
Left/Dec. button
Menu button
Mode button
Input Select button
E-Key button
Mute button

√
√
√
√
√

√

3.5.2 OSD control function definition

Item Condition Spec OK N.A Remark

Auto Adjust
Brightness
Contrast
Horizontal Position
Vertical Position
Pixel Clock
Phase

Color

OSD Position

OSD Time
OSD Lock

Language

Recall
Mode

Input Select

Sharpness
Display Information
Volume
Mute
Hot key for Auto
Hot key for Contrast
Hot key for Volume
Hot key for Input Select
Hot key for Mode

The detailed firmware functions’ specification, please refer to C212 S/W spec. document.

OSD Horizontal position

EMEA/Non-EMEA

D-sub

Auto-Geometry

Cool:色溫 9300
Warm:色溫 6500
User: Separate R/G/B

adjustment
Reset Color

OSD Vertical position
From 10 sec to 120 sec

languages for Asia/Europe
Version
Recall All

Acer Empower Mode

DVI

For input timing

√
√
√
√
√
√
√

√

√

√

√

√
√

√

√

√

√
√

√

√

√

√
√

√
√
√
√

- 14 -

3.6. Mechanical Characteristics

3.6.1 Dimension

Item Condition Spec OK N.A Remark

Bezel opening

Monitor without Stand W x H x D mm

Monitor with Stand W x H x D mm

Carton Box (outside) L x W x H mm

Tilt and Swivel range

411.7*232.3 mm

456.41*280.56*68.46m
m

456.41*334.54*163.72m
m

504*126*394mm
Tilt: -5 ~ +15 degree

Swivel: 0 degree

3.6.2 Weight

Item Condition Spec OK N.A Remark

Monitor (Net)
Monitor with packing

(Gross)

3.56Kg

4.22Kg

3.6.3 Plastic

Item Condition Spec OK N.A Remark

Flammability
Heat deflection To
UV stability

Resin

Texture

Color

ABS
ABS Delta E < 8.0

>ABS<,94-HB

65 ℃

BEZEL: PMMA+ABS

UC,BASE:ABS

-0677F,

Other:

UC:AT-IM-D02;
Bezel: AT-IM-D01
BEZEL : DB19A;
UC: DB19A

√

√

√
√

√

√

√

√
√
√

√

√

√

3.6.4 Carton

Item Condition Spec OK N.A Remark

Color
Material
Compression strength
Burst Strength

Stacked quantity

- 15 -

Kraft
B Flute
200KGF
16 KGF/cm2
4 Layers Vertical +2

layers H

√
√
√
√

√

3.7. Pallet & Shipment

ontainer

3.7.1 Container Specification

Stowing Type

With pallet

Without pallet

20'

40'

20'

40'

Quantity of products
(sets)
(Every container)

940 Pallet A: 94 Pallet A: 10

Pallet B: Pallet B:

2068 Pallet A: 94 Pallet A: 22

Pallet B: Pallet B:

X X

X X

X X

X X

Quantity of Products
(sets)
(Every Pallet)

Quantity of pallet
(sets)
(Every Container)

3.7.2 Carton Specification

3.7.2.1 Product:

Net Weight (Kg) Gross Weight (Kg)

3.56Kg 4.22Kg 456.41*280.56*68.46mm 456.41*334.54*163.72mm

Dimension w/o Base
W*H*D (mm)

Dimension w/ Base
W*H*D (mm)

3.7.2.2Package:

Carton Interior Dimension (mm)
L*W*H
496*117*379mm 504*126*394mm

Carton External Dimension (mm)
L*W*H

3.8. Certification

Item Condition Spec OK N.A Remark

Green design

Blue Angel

E-2000

Environment

PC-Monitor

Safety

- 16 -

EPA USA Standard
TCO’99
TCO’03
MPR2
Green Mark
Microsoft Windows PC98/99
DPMS VESA
DDC 2B Version 1.3
USB External
UL (USA) UL60950 3rd edition

CSA (Canada)

Nordic / D.N.S.F EN60950

API Doc. 715-C49

German Standard

Switzerland

CAN/CSA-C22.2 No.
60950

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ISO14000

Requirement

EMC

X- Ray Requirement

Ergonomics

FIMKO EN60950
CE Mark 73/23/EEC

CB IEC60950

CB EN60950

TUV/GS

EN60950 /

EK1-ITB 2000:2003
CCC (China) CB4943
GOST EN60950
TUV type-approved
SASO IEC60950
CE Mark 89/336/EEC
FCC (USA) FCC Part 15 B
EN55022 Class B
CISPR 22 Class B
VCCI (Japan) VCCI Class B
BSMI (Taiwan) CNS 13438
C-Tick (Australia) AS/ NZS CISPR22
DHHS (21 CFR) USA X- Ray Standard
DNHW

PTB

German X- Ray

standard
TUV / Ergo
ISO 13406-2
prEN50279

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- 17 -

3.9 Packing

- 18 -

4. Disassembly /Assembly

16

4.1. Exploded View

1

2

10

5

3

4

11

9

13

6

7

8

12

14

18

19

17

15

20

- 19 -

4.2. Disassembly /Assembly

Assembly SOP

Preparation before assemble

1. Clean the room for work

2. Identify the area for material

3. Prepare the implement, equipments, material as bellow:

1) Press-fixture

2) Working table

3) Screw-driver

4) Knife*1

5) Glove

6) Cleaning cloth

7) ESD protection

ite
m

1

picture Operation Tool Notes

Put panel on the
cushion carefully,

2 Stick a big Al tape to

panel which can protect
the WIRE.

3 Check and put CLM-F

on the cushion
carefully,

- 20 -

4 Assemble the panel on

CLM-F.

Go to with Left.

5

6

7

Assemble PCBA

Assemble the PCBA to
Main-Chassis

Fix the SPS board by 3
screws.

Screw-driver
7+1Kg*cm
Hole size:
￠2.68±0.03

Screw head:
＃2
Length:60-80

Attention the order
by one to three.

8

Lock screws of
FLAT+EXT and fix the
I/F board by 2 screws.

Screw-driver
7+1Kg*cm
Hole size:

Attention the order
by one to three.

￠2.68±0.03
Screw head:

＃2
Length:60-80

- 21 -

9

Fasten the AC-socket
to Main-Chassis

10

Lock screws of side on
Main-Chassis with
2/4,based on DVI.

11 Fasten the LVDS to

panel

12

Stick an Y tape to fix
the LVDS cable

Screw-driver
5+0.6Kg*cm
Hole size:
＃4-40

Screw head:
＃2

Length:60-80

Attention the order
by one to three.

- 22 -

13

Stick four AL tape to
Main-Chassis

Attention the order

and position.

14

Insect the inverter wire
and stick an acetic tape
to fix the wire one by
one.

15 Assemble PCBA of ctrl

BD and insect the
inverter wire for
connection with CLM-F
and AC-socket, and
stick an acetic tape to
fix the wire at last.

16 Check and put CLM-F

on the Main-Chassis
carefully,then Assemble
the Rear Cover.

Screw-driver：

5.0±1.0Kg*cm
Hole size:
￠2.35±0.05

Screw head:
＃2
Length:60-80

- 23 -

17

Assemble bracket ,
Cover the cover board
at last.

Attention L or R.

18

Assemble with
shackles.

19 Lock 2 screws for

fasteness.

20 Lock 4 screws to RC.

Screw-driver：

7.5+0.5Kg*cm
Hole size:
￠3.35±0.05

Screw head:
＃2

Length:60-80

Screw-driver：

7.5+0.5Kg*cm
Hole size:
￠3.35±0.05

Screw head:
＃2

Length:60-80

21 Cover the CLM of L and R

- 24 -

Disassembly SOP

Preparation before disassemble

1. Clean the room for disassemble

2. Identify the area for monitor

3. Check the position that the monitors be placed and the quantity of the monitor; prepare the area for
material flow; according to the actual condition plan the disassemble layout

4. Prepare the implement, equipments, material as bellow:

1) Press-fixture

2) Working table

3) Screw-driver

4) Knife*1

5) Glove

6) Cleaning cloth

7) ESD protection

item

1 Prize up the cover. Unsharpness.

picture Operation Tool Notes

2 Disassemble the stand

 4 screws

3

Disassembly the bezel

from the monitor, notice

the disassembly order :

1.Left (1) parts of bezel

2.Top (2) parts of bezel

3.Bottom (3) parts of
bezel

4. Right (4) parts of
bezel
Don’t draw the BZL

Screw-driver：

7.5+0.5Kg*cm

Screw head:
＃2

When disassembly

the bezel ,notice
don’t bend the
C/B .man must wear
glove
The purpose is
loose the BZL

- 25 -

4 Turn over the

monitor ,dismantle the
Rear cover from the
monitor.

Screw-driver：

5.0±1.0Kg*cm

Screw head:
＃2

Don’t draw the BZL

5 Disassembled the ctrl

BD wire shielding and
one acetic tapes.

6

Tear off these two
acetic tapes.
Kick off the wire.

7

Take the entire internal
mechanism from Bezel
and then put it on the
cushion.

8

Tear off these four AL
tapes.

- 26 -

9

Tear off these Y tapes.

10 Pull out these wires.

11

12

13

Disassembled the
screws : 2/4 screws ,
based on DVI.

Disassembled these
AC-socket to Main­Chassis.

Disassembled these
screws which fixed the
I/F and SPS board.
 6 Screws

Screw-driver
5+0.6Kg*cm

Screw head:
＃2

Screw-driver :
7+1Kg*cm

Screw head:
＃2

14

- 27 -

Disassemble the board
and pull out these
wires.

5. Level 1 Cosmetic / Appearance / Alignment Service

5.1 Alignment procedure (for function adjustment)

A list of necessary alignments for the LCD monitor:

Items

1 Timing adjustment Preset timing
2 White balance adjustment 1. Burn In: On

3 Color temperature adjustment Cool (9300K)

4 Writing EDID file Analog and Digital

5.1.1 Preparation:

1. Setup input timing to any preset mods or patterns.

2. Enter factory mode (press “e-Key” then press “power” button to turn on monitor).

3. Move Black cursor into “BURN IN MODE” tag and select “ON” to enable burn-in mode.

4. Power off the monitor, remove the input source and then power on again.

5. Setup unit and keep it warm up for at least 30 minutes.

5.1.2 Timing adjustment: (Analog only, it is not required for DVI-D input source)

1. Enter factory mode (press “e-Key” then press “power” button to turn on monitor).

2. Select timing mode from table 1 and input full screen display pattern to monitor.

3. Press “Auto-Key” to run “AUTO adjustment” function for geometry adjustment.

4. Clear user area in EEPROM.

5. Check if the position, phase and clock of the image are ok or acceptable to make sure function
and performance are ok.

6. Turn off the monitor power.

7. Turn on the monitor power again to check if monitor’s image settings are ok and with following
settings.

CONTRAST = 50
BRIGHTNESS = 85
COLOR = Warm (default setting)

- 28 -

Description Remark

2. User Mode

3. SXGA 1024
1280X1024@75Hz

Pattern 42(5-Mosaic)

Warm(6500K)
User

Figure-1: Preset Timing modes list

Mode

Resolution

(active dot)

640x480@60Hz 800 x 525

Resolution

(total dot)

Horizontal

Frequency

(KHz)

Vertical

Frequency

(Hz)

Nominal Pixel

Clock (MHz)

31.469 59.941 25.175

MAC

640x480@72Hz 832 x 520

640x480@75Hz 840 x 500

640x480@66.66Hz

864x525 35 66.66 30.24

37.861 72.809 31.500

37.500 75.000 31.500

VESA 720x400@70Hz 900x449 31.469 70.087 28.322

800x600@56Hz 1024 x 625

SVGA

800x600@60Hz 1056 x 628
800x600@75Hz 1056x625

MAC 832x624@74.55Hz 1152x667

1024x768@60Hz 1344x806

XGA

1024x768@70Hz 1328x806

1024x768@75Hz 1312x800

MAC 1152x870@75Hz 1568x909

1152x864@75Hz 1600x900

35.156 56.250 36.000

37.879 60.317 40.000

46.875 75.000 49.500

49.722 74.55 57.28

48.363 60.004 65.000

56.476 70.069 75.000

60.023 75.029 78.750

68.700 75.000 84.520

67.5 75 108

VESA

1280x960@60Hz 1800x1000

1280x1024@60Hz 1688x1066

60 60 108

63.981 60.020 108.000

SXGA

1280x1024@75Hz 1688x1066

79.976 75.025 135.000

1280x720@60Hz 1650x750

VESA

1280x768@60Hz 1664x798

1280x768@75Hz 1696x805

WXGA

1280x800@60Hz 1680x831

1366x768@60Hz 1792x798

- 29 -

44.955 59.940 74.176

47.776 59.870 79.500

60.289 74.893 102.250

49.702 59.81 83.5

47.712 59.79 85.5

5.1.3 Auto color balance adjustment:

(Analog only, it is not required for DVI-D input source)

1. Setup input timing SXGA (1280x1024@75), pattern 42(5-Mosaic pattern with white color
frame) with Analog signals from Chroma video pattern generator.

2. Enter factory mode (press “e-Key” then press “power” button to turn on monitor).

3. Move black cursor into “BURN IN MODE” tag and select “ON” to enable burn-in mode, then
left OSD menu.

4. Press “ Left Key ” button to do white balance for auto color balance adjustment (will get
optimal gain / offset (clamp) values).

5.1.4 Color adjustment:

1. Setup input timing to any preset modes, pattern 41(full white color pattern) with Analog
signals from Chroma video pattern generator.

2. Enter factory mode (press “e-Key” then press “power” button to turn on monitor).

3. Confirm auto color balance adjustment had already been done.

4. Measure each color temperature (Cool&Warm) by Minolta CA-110 (or equivalent equipment).

5. Two methods can be used to adjust RED, GREEN, BLUE value of each color temperature,
Cool&Warm to meet following spec requirement, the 1st method is by using external PC and
IIC alignment protocol to do automatic adjustment, and the 2nd method is by manually and
must be in factory mode.

(Cool set on OSD)

(Warm set on OSD)

6. Turns off the monitor power.

X+- 0.283+(-) 0.03 Color temperature
Y+- 0.297+(-) 0.03
X+- 0.313+(-) 0.03 Color temperature
Y+- 0.329+(-) 0.03

- 30 -

5.2 Software / Firmware Upgrade Process

VG

A signal input from 15pin D

-

sub

Connect ISP board and PC

Check the Jumpers on the

5.2.1 Hardware prepared:

Hardware Requirement:

1. ISP board x 1

cable of PC or NB.

Connect to target monitor

ISP Circuit Board (make sure
J5, J6, J7, J8 are set at ping
1,2 )

2. DSUB VGA cables x 2

3. Printer cable (with one male connector and another female connector) x 1.

4. PC or Notebook with parallel (printer) port x1.

- 31 -

with printer port cable

5.2.2 Firmware Upgrade Procedure

Step 1:

Un-zip Port95nt and install into your computer.

Step 2:

Un-zip ISP application tool (RTDTool)

Step 3:

Press “RTD 2120 ISP” button to execute firmware program application.

- 32 -

Step 4:

Press “64K” button to load *series*.hex file and press “64~96” button to load *extend*.hex file

from your computer.

Step 5:

Select “Erase” option and execute lightning button first, and then select “Auto” option and
execute lightning button to start upgrade firmware to the monitor.

- 33 -

Note: you can change program speed bar to meet your equipment speed if program firmware fail.

- 34 -

5.2.3 Turn Off Burn In

ENTER and RIGHT to Burn In Off

IF the monitor without signal input has Burn In pattern. As the following figure

Press “MENU” and “>” key at the same time to exit Burn in mode(factory mode),and soft power key
off/on restart the monitor.

- 35 -

5.3 EDID Upgrade Procedure

Step 1:

Run the program “Q-EDID-V016.exe”, when the UI popped up

Note: If “VGA” choose 128bytes, and “HDMI” choose 256bytes

- 36 -

Step 2:

Click “Open File” and select “VGA” or “HDMI” EDID file

Step 3:

If load file is successful, it shows “Open EDID Table OK..”.
And then, Click “Write EDID” button to update EDID

v

- 37 -

Step 4:

If write EDID is successful, it shows ”Write EDID OK …”
And then, click “Read EDID” button to check if successful or not.

Step 5:

If read EDID is successful, it shows” Read EDID OK …”

- 38 -

5.4 OSD Operation Guide

OSD Function Requirements

- 39 -

- 40 -

- 41 -

Remark: Acer logo must be appeared while “power on” or “suspend”

- 42 -

Check all of wire

s

then turn

Check control BD

Check crystal Y1 CKT or

6. Level 2 Circuit Board and Standard Parts Replacement

Does cable plugs in

6.1. Trouble Shooting Guide

1. No Display or display is unstable:

1.1. Interface Board:

No picture or picture unstable

Power off ?

connector?

Does power stable?

Is LED light green/orange?

Is LED status normal?

Does crystal work correctly?

Is interface BD normally?

Replace panel

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

Turn on power

on power switch again.

Check Power BD

Check Scalar or replace it

replace it

Replace interface BD

- 43 -

OSD doesn’t work

2. BUTTON Function:

No

No

No

2.1 Control Board

OSD is not working

Is control BD connecting?

Is bottom switch normally?

Is OSD working??

Yes

Yes

Yes

Plug control BD then retry

Replace control BD then retry

Check Interface BD

3. OSD function:

Is control BD working?

Check interface BD

N

Replace control BD

Y

- 44 -

4.

Power no work troubleshooting

Power Board Functions

Does IP Board 5V /12V

Output normally?

Yes

Check IC601

whether the Vcc and

output normally?

No

Check Q601

whether Gate input

normally?

Yes

D701/D702

whether output keep

12.5V/5V

normally?

No

Is the power cord good?

Replace IP board

Yes

No

No

Check IC601

related signal

Check Q601

related signal

Check D701/D702

input Signal

and open short

Yes

No

Replace the power

cord

Yes

Check IF board

- 45 -

6.2 Circuit Operation Theory

I. Introduction:

X193HQ is a 18.5 inch and 24bits color TFT LCD monitor, which can support the resolution
up to 1366x768. It has VGA input and compliant with VESA specification to offer a smart power
management. The monitor has DDC/CI function to make the monitor communicate with PC by Acer
ADM DDC/CI software, and also it has ACM function to let the monitor contrast ratio up to 10000:1. It
also offers OSD Menu for users to control the adjustable items and get some information about this
monitor.

II. Block diagram

X193HQ consists of a main body and a stand (base). The main body contains a AUO

TFT LCD module with 2 CCFL lamps, a power board (includes AC/DC、 DC/DC、 inverter

and panel power source), a control board and an interface board. The block diagram is shown

as below.

Fig. Block diagram for X193HQ LCD monitor

- 46 -

III. Circuit operation theory:

A.) THE MAIN BODY:

A-1.) Interface board block diagram:

(a) Circuit operations:

The scaling IC has OSD and auto detecting input timing functions. OSD offers
adjustable functions to the end-users. Auto detecting timing function can detect change
modes. It outputs the digital R-G-B data, pixel clock and control signal to TCON of the LCD
module. A MCU, build in scaling IC (Realtek2525LH), is responsible for the system
processing. There are two external storing units, one is 24C16 to store the OSD function
data and user preset timings.

(b) IC introduction:

1.) Realtek2525LH SCALER IC:

Realtek2545L series products are all-in-one LCD monitor controller with

analog (RGB), DVI and video inputs, supporting UXGA/

WXSGA+WXGA+/SXGA(optional),and integrate Realtek high performance

ADC,scaling engine,LVDS Tx,and so on.Moreover,all products are pin compatible in

QFN 48-pin package to save cost and make the design easier. The RTD also

includes an ITU656 video format input port with color space converter that makes it

an attractive solution for low cost MFM and TV applications. The output section

contains a 24-bit TTL output interface and a channel LVDS transmitter for direct

interfacing of commercially available LVDS LCD panel modules. In addition,

RTD2525LH embedded 16.5KSRAM dynamically stores OSD command and fonts,

compatible advanced color control features.

- 47 -

2.) EEPROM:

EMI

Rectifier

Isolation

transforme

Rectifier

PWM

Switching

Feedback

Inverte

r

Rectifier

LDO

regulator

We use 24C16 EEPROM to store monitor user data and user preset timings.
There are 16 user timing modes are automatically saved in it. Each timing mode is
allocated with 22 bytes of memory space for information such as Sync frequencies,
polarities… etc. PC can access the EEPROM data indirectly through the SDA and
SCL channels of DVI and D-sub (IIC communication). The digital and analog DDC
data are stored in two 24C02s EEPROM.

A-2.) Power board diagram:

Filter

#1 EMI Filter

This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC,
VDE, VCCI standard requirements.

and filter

controller

power

element

Fig.1

Isolation

and filter

and filter

circuit

Fig. 2

- 48 -

6.3 Spare Parts List

Ship To Area Part Number Description
EMEA ET.LEK0D.002

18.5W LCD MNT DUAL EU

LEVEL

1 LCD

1

1

1

1

1

1 CABLE

1 CABLE

1

1

1

1

1

1

CATEGORY DESCRIPTION OEM PART NO.

BOARD

BOARD

BOARD

CABLE

CABLE

CABLE
CABLE

CASE/COVER/BRACKET
ASSEMBLY
CASE/COVER/BRACKET
ASSEMBLY
CASE/COVER/BRACKET
ASSEMBLY
CASE/COVER/BRACKET
ASSEMBLY

LCDM18.5W M185XW01-V0 Z AUO 5F.LUHV0.001

PCBA CTRL BD MI P22XW 5E.0GT03.001

PCBA IFBD DUAL AU MI X193HQ 5E.0NA01.004

PCBA SPS BD MI X193HQ 5E.0NA02.001

CORD H05VV-F 10A250V EUR 1.8M 2G.00921.001

CABLE DVI-D/DVI-D 1.8M IS_8 VW 5K.05406.501

WIRE 7/9P CTRL BD X193HQ 5K.0NA01.001

WIRE LVDS 30/20P 1571 G900HD 5K.0NJ01.001

WIRE PWR 10/11P 1571#28 G900H 5K.0NJ02.001

CABLE SIGNAL/C H+V OD_5.5 1.8M 5K.L2H06.511

ASSY BASE W/P DUAL X193W 6K.0K406.001

ASSY BZL DB19A X193HQ 6K.0NA01.001

ASSY RC DUAL X193HQ 6K.0NA03.001

ASSY CLMN X193HQ 6K.0NA10.001

- 49 -

Appendix 1 – Screw List / Torque

(A)STANDARD SCREW TORQUE SPEC.

ITEM

1 8F.205B4.019

P/N DESCRIPTION Color

SCRW MACH HEX #4-

40*0.3" N

Ni

Mounting

Material

Metal;

D-SUB;DVI

Connector

TORQUE

(KG-CM)

HOLE

SIZE
(MM)

Screw

5.0±0.6 #4-40 X

Head

2 8F.00518.100

3 8F.1A556.8R0

4 8F.5A356.8R0

5 8F.5A422.2R4

6 8F.00273.6R0

7 8F.VZ524.6R0

8 8F.5A356.120

9 8F.5A456.8R0

10 8F.WA314.8R0

SCRW TAP W/FL
M3*10L(S3.8) ZN

SCRW MACH PH M4*8L

NI NYL

SCRW MACH FH M4*8L B-

ZN NYL

SCRW MACH FLAT-P

M2*2.4L ZN

SCRW TAP PH F/10WSH

M3*6L C-ZN

SCRW TAP FLAT+EXT

M3*6L C-ZN

SCRW MACH FH M4*12L

B-ZN NYL

SCRW MACH FLAT M4*8L

C-ZN NYLO

SCRW TAP CAP

M3*1.34P*8L B-ZN

(B) SPECIAL SCREW TORQUE SPEC.

ITEM

P/N DESCRIPTION

*SCREW Q’TYPE AND POSITION
REFERRED TO C328.
*NOTES:

1. (A) STANDARD SCREW TORQUE
SPEC.

2. (B) SPECIAL SCREW TORQUE
SPEC.

3. T: TAPPING SCREW.

4. M: MACHING SCREW.

None tread：8～10

Have tread:6～8

Aluminum:4~5

∅∅∅∅2.68±0.0

3

#2

NI

Metal

NI Metal 11.0±1.0 M4*0.7 #2

B-Zn

Zn Plastic 1.0±0.1

C-Zn

C-Zn

B-Zn

C-Zn

B-Zn

Metal 9.0±1.0 M4*0.7 #2

#1

#2

#2

Metal

Metal

None tread：8～10

Have tread: 6～8

Aluminum: 4~5

None tread：8～10

Have tread:6～8

Aluminum:4~5

∅∅∅∅1.7±0.05

∅∅∅∅2.68±0.0

3

∅∅∅∅2.68±0.0
3

Metal 11.0±1.0 M4*0.7 #2

Metal 11.0±1.0 M4*0.7 #2

Plastic

5.0±1.0

∅∅∅∅2.35±0.0

5

#2

MOUNTING

MATERIAL

D-SUB Connector
SCREW TORQUE SPEC.

SCREW D-SUB

SCREW TORQUE: 1.2±0.3
(KG-CM)

TORQUE

(KG-CM)

HOLE SIZE

(MM)

DVI Connector
SCREW TORQUE SPEC.

SCREW TORQUE :

1.2±0.3(KG-CM)

Screw

Head

SCREW DVI

- 50 -

Appendix 2 – Physical Dimension Front View and Side view

Fig. 1 Physical Dimension Front View and Side view

- 51 -

Fig. 2 Appearance Description

- 52 -

Appendix 3 – Control Board

- 53 -

Appendix 4 –Power Board

- 54 -

- 55 -

Appendix 5 –Interface Board

- 56 -

- 57 -

- 58 -