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”.
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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
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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
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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
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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
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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
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Depends on panel
source
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3.2.2 Signal interface
Separate analog R/G/B
Item Condition Spec OK N.A Remark
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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,
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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,
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.
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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.
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
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At default contrast level
(saturate point) & Fullwhite color pattern
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
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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
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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.
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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3.9 Packing
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