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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die ,,Sicherheitshinweise" und ,,Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
TFT LCD MONITOR
October 2002
No. 0532
CML174SXW
CML175SXWB
CML175SXW
CML174SXWB


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1
CML174SXW / CML175SXW TFT LCD MONITOR
CONTENTS
CONTENTS ...................................................................................................................................................................... 1
1.
INTRODUCTION .................................................................................................................................................... 3
1.1
SCOPE.................................................................................................................................................................. 3
1.2
DESCRIPTION ....................................................................................................................................................... 3
2.
ELECTRICAL REQUIREMENTS......................................................................................................................... 4
2.1
STANDARD TEST CONDITIONS ............................................................................................................................... 4
ALL TESTS SHALL BE PERFORMED UNDER THE FOLLOWING CONDITIONS, UNLESS OTHERWISE SPECIFIED......................... 4
2.2
LCD MONITOR GENERAL SPECIFICATION .............................................................................................................. 4
2.3
LCD PANEL SPECIFICATION ................................................................................................................................. 5
2.4
INPUT SIGNALS ................................................................................................................................................... 11
SUPPORTED TIMING ....................................................................................................................................................... 12
2.5
CONTROLS ...................................................................................................................................................... 15
2.6
WHITE COLOR TEMPERATURE............................................................................................................................. 17
2.7
POWER SUPPLY.............................................................................................................................................. 18
2.8
PLUG & PLAY(EDID)......................................................................................................................................... 19
2.9
AUDIO TECHNICAL SPECIFICATION...................................................................................................................... 19
3.
VL-713 DISPLAY CONTROL BOARD............................................................................................................... 20
3.1
DESCRIPTION ..................................................................................................................................................... 20
3.2
FEATURES.......................................................................................................................................................... 20
3.3
BLOCK DIAGRAM ......................................................................................................................................... 21
SYSTEM BLOCK DIAGRAM............................................................................................................................................. 21
3.4
CONNECTOR LOCATIONS ................................................................................................................................... 21
3.5
CONNECTOR TYPE............................................................................................................................................. 22
3.6
CONNECTOR PIN ASSIGNMENT ........................................................................................................................... 22
4.
VK-713 CONTROL PANEL BOARD .................................................................................................................. 25
4.1
DESCRIPTION ..................................................................................................................................................... 25
4.2
CONNECTOR AND SWITCH LOCATIONS................................................................................................................. 25
4.3
CONNECTOR TYPE............................................................................................................................................... 25
4.4
CONNECTOR PIN ASSIGNMENT ............................................................................................................................ 25
4.5
SWITCH DEFINITION............................................................................................................................................ 26
4.6
LED DEFINITION ................................................................................................................................................ 26
5.
POWER SUPPLY & INVERTER BOARD ......................................................................................................... 27
5.1
DESCRIPTION ..................................................................................................................................................... 27
5.2
POWER SUPPLY ( AC TO DC SECTION)................................................................................................................. 27
5.3
INVERTER (DC TO AC SECTION) ......................................................................................................................... 28
5.4
ELECTRICAL CHARACTERISTICS ........................................................................................................................... 28
5.5
CONNECTOR LOCATIONS ..................................................................................................................................... 29
6.
TROUBLESHOOTING ......................................................................................................................................... 31
6.1
MAIN PROCEDURE.............................................................................................................................................. 31
7.
MECHANICAL REQUIREMENTS..................................................................................................................... 35
7.1
VIBRATION AND SHOCK....................................................................................................................................... 35
7.2
PACKAGE DROP SPECIFICATION ......................................................................................................................... 35
7.3
DIMENSION SIZE AND WEIGHT ............................................................................................................................ 36
7.4
GAP SPEC........................................................................................................................................................... 36
7.5
TILT BASE ROTATION .......................................................................................................................................... 37
7.6
SWIVEL BASE ROTATION...................................................................................................................................... 37
7.7
PLASTIC MATERIAL............................................................................................................................................. 37
7.8
GAP SPEC.......................................................................................................................................................... 37


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2
8.
POWER LINE TRANSIENT TEST (IEC 61000-4-4 FAST TRANSIENTS/BURST)............................................. 38
8.1
PEAK VOLTAGE: ................................................................................................................................................. 38
8.2
POLARITY
: + / -............................................................................................................................................ 38
8.3
REPETITION FREQUENCY OF THE IMPULSE : 5 KHZ. ............................................................................................ 38
8.4
RISE-TIME : 5NS
± 30% .................................................................................................................................... 38
8.5
IMPULSE DURATION: 50 NS
± 30% ..................................................................................................................... 38
8.6
RELATION TO POWER SUPPLY: ASYNCHRONOUS .................................................................................................. 38
8.7
BURST DURATION: 15 MS
± 20%......................................................................................................................... 38
8.8
BURST PERIOD: 300 MS
± 20%........................................................................................................................... 38
8.9
CLIMATIC CONDITIONS:...................................................................................................................................... 38
8.10
TEST PROCEDURE: ............................................................................................................................................. 38
9.
POWER LINE SURGE TEST (IEC 61000-4-5 SURGE) .................................................................................... 40
9.1
CLIMATIC CONDITION......................................................................................................................................... 40
9.2
TEST CONDITIONS: ............................................................................................................................................. 40
9.3 ................................................................................................................................................................................. 40
9.4 ................................................................................................................................................................................. 40
9.5 ................................................................................................................................................................................. 40
9.6 ................................................................................................................................................................................. 40
9.7....................................................................................................................................................................................40
10.
ENVIROMENT REQUIREMENT ................................................................................................................... 41
10.1
OPERATING ........................................................................................................................................................ 41
10.2
STORAGE OR SHIPMENT ...................................................................................................................................... 41
11.
REGULATION COMPLIANCE....................................................................................................................... 42
11.1
THIS PRODUCT COMPLY TO THE MOST CURRENT REVISIONS OF FOLLOWING REGULATIONS:................................... 42
11.2
ELECTROSTATICS DISCHARGE (ESD) .................................................................................................................. 43
12.
QUALITY AND RELIABILITY....................................................................................................................... 44
12.1
QUALITY ASSURANCE.......................................................................................................................................... 44
12.2
RELIABILITY........................................................................................................................................................ 44
Appendix A: PCBA Assembly.......................................................................................................................45
Appendix B: DISPLAY UNIT Assembly.......................................................................................................54
Parts List.............................................................................................................................................................59


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3
1. INTRODUCTION
1.1 Scope
This specification defines the requirements for the 17" MICRO-PROCESSOR based Multi-
mode supported high resolution color LCD monitor, This monitor can be directly connected
to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the
requirement of optional special display card. It also supports VESA DPMS power
management and plug & play function. There is a build-in stereo audio amplifier with
volume control to drive a pair of speakers.
1.2 Description
The LCD monitor is designed with the latest LCD technology to provide a performance
oriented product with no radiation. This will alleviate the growing health concerns. It is also
a space saving design, allowing more desktop space, and comparing to the traditional CRT
monitor, it consumes less power and gets less weight in addition MTBF target is 20k
hours or more.
Comparison Chart of CML174SXW - CML175SXW
CML174SXW
CML175SXW
Panel
Normal 17" panel
AU M170EN05
Samsung LTM170EU-L02
Normal 17" panel
AU M170EN05
Samsung LTM170EU-L02
Signal Interface
DSUB+DVI-D
DSUB+DVI-D
Sync Type for analog
input
Separate / compatible /
Separate / compatible /
Color Temp user
adjust
SUPPORT
SUPPORT
DDC
DDC2B
DDC2B
Speaker
No
1W+1W
Headphone Jack
No
Yes
Microphone Jack
No
No
USB Hub
Not support
Not support
Tilt / Swivel
Yes / No
Yes / No
Height Adjust
Option
Option


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4
2. ELECTRICAL REQUIREMENTS
2.1 Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified.
Ambient light:
225 lux
Viewing distance :
50 cm in front of LCD panel
Warrn up time
All specifications:
30 minutes
Fully functional:
5 seconds
Measuring Equipment:
Chroma 2250 signal generator or equivalent, directly
Connected to the monitor under test.
Minolta CA100 photometer, or equivalent
Control settings
User brightness control:
Maximum (unless otherwise specified )
User contrast control:
Typical
(unless otherwise specified )
User red/white balance,
Green/white balance and
Blue/white balance control:
In the center (unless otherwise specified )
Power input :
110Vac or 230Vac
Ambient temperature :
20
± 5 °C ( 68 ± 9 ° F)
Analog input mode :
1280 x1024 /60 Hz
2.1.1 MEASUREMENT SYSTEMS
The units of measure stated in this document are listed below:
1 gamma = 1 nano tesla
1 tesla = 10,000 gauss
cm = in x 2.54
lb = kg x 2.2
degrees F = [°C x 1.8] + 32
degrees C = [°F - 32]/1.8
u' = 4x/(-2x + 12y + 3)
v' = 9y/(-2x + 12y + 3)
x = (27u'/4)/[(9u'/2) - 12v' + 9]
y = (3v')/[(9u'/2) - 12v' + 9]
nits = cd/(m2) = Ft-L x 3.426
lux = foot-candle x 10.76
2.2 LCD monitor General specification
Panel Type :
17 " active matrix color TFT LCD
1). AU 17" M170EN05
Display size : 337.92mm(H) x 270.34mm(V)
Display mode :
VGA
720 X 400 (70 Hz)
VGA
640 X 480 (60/66/70/72/75 Hz)
SVGA
800 X 600 (60/70/72/75 Hz)