ViewSonic makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, ViewSonic reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of ViewSonic to notify any
person of such revision or changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
1a 10/29/2006 Initial Release Jamie Chang
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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 4
3. Front Panel Function Control Description 8
4. Circuit Description 14
5. Adjustment Procedure 21
6. Troubleshooting Flow Chart 53
7. Recommended Spare Parts List 61
8. Exploded Diagram and Exploded Parts List 66
9. Block Diagram 69
10. Schematic Diagrams 70
11. PCB Layout Diagrams 75
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1. Precautions and Safety Notices
1. Please carefully read this manual before operating the device and keep it available for future reference.
2. To avoid the danger of the monitor falling and thereby possibly causing injury and/or serious damage to
the monitor itself, do not place it on unstable cars or desks. Be careful to avoid placing any stress on the
LCD screen during handling.
3. Do not place this monitor in areas that are wet or where water or other liquids may come in contact with it,
such as bathrooms, kitchens, wet floors, near washing machines or by swimming pools.
4. Remove the power plug from the electrical socket before cleaning. No water-containing cleaning agent
should be used to clean the screen, but only cleaning agents formulated specifically for cleaning LCD
screens. Do not put any liquid cleaning agent directly on the screen, but put it on a soft cloth first and then
gently apply the cloth to the screen.
5. In order to guarantee reliable operation and ad equate heat dissipation, do not cover or block vent holes
on the monitor. Do not put the monitor close to heat sources. Do not place the monitor on furniture such
as a bookshelf, unless sufficient ventilation is available.
6. A 3-pin grounding plug is provided for this monitor. In order to guarantee normal operation and safety of
this unit, this plug should be used with a matching grounded power socket.
7. Please follow all warnings and instructions that accompany the monitor.
8. Please pay special attention to power supply overloads, as electrical shock or fire may occur.
9. Do not pl ace anything on the power cord. Do not hang the power cord over an area where people or
objects may pass.
10. In case the monitor is not be used for an extended period, turn off power to avoid the possibility of short
circuits caused by lightning.
11. In order to avoid electrical shock or fire risks, do not insert any object through any openings in the
monitor’s enclosure. Do not allow any liquid to come in contact with the monitor.
12. In case of any abn ormal noise or odor caused by incorrect operation, turn off power immediately and
contact a professional technician. Do not attempt to repair this monitor by yourself, as electrical shock
may occur when opening the back cover or accessing internal components.
13. If any of the following conditions occurs, turn off power and contact a repair service provider:
1) the power cord is damaged or worn;
2) liquid has gotten into the monitor, or the monitor has experienced immersion or wetting;
3) the monitor has fallen;
4) the monitor’s performance shows obvious changes;
5) the monitor fails to work normally when correct procedures are followed. In that case, please make
any adjustments in accordance with instructions supplied with the monitor; do not attempt any
changes to established procedures, as further damage may occur, making successful repair of the
monitor more difficult.
14. In case parts need to be replaced, you must use identical parts or those supplied by our certified
manufacturers. Any other parts used without our authorization may result in electrical shock or fire risk.
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Handing and Placing methods
Correct methods Incorrect methods
Only touch the metal frame of the LCD panel or the front
cover of the monitor, DO not touch the surface of the POL
Take out the monitor with cushions
Surface of the LCD panel is pressed by fingers and that
may cause”mura”
Taking out the monitor by grasping the LCD panel, that
May cause”mura”
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Correct methods Incorrect methods
Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects, that could
scratch The surface of the "Panel" or cause "mura"
The panel is placed facedown the lap,that may cause
"mura"
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2. Specification
Introduction
The purpose of this document is to define design and performance requirements for MR19V (using
RTD2523B and HSD 19” panel), the 19.X-inch TFT -LCD monitor .
Features
19” SXGA TFT LCD panel
TN (Twist Nematic) Mode
Analog input up to 1280X1024@75Hz
4 dual CCFTs (Cold Cathode Fluorescent Tube)
Supported to 75Hz refresh rate
Supported to 16.2M colors display
Supported VESA-DDC2B plug & play function
Supported VESA-DPMS power management function
LVDS (Low Voltage Differential Signaling) interface (2 pixels/clock)
1 LCD PANEL
st
source)
(1
2 LCD PANEL
nd
(2
source)
Panel:
Size
Pixel Arrange
Glass
Treatment
Contrast Ratio
Viewing Angle
Colors
Luminance
Response
Time
Backlight
Backlight Life
Mercury
Panel:
Size
Pixel Arrange
Glass
Treatment
Contrast Ratio
Viewing Angle
Colors
Luminance
Response
Time
Backlight
Backlight Life
Mercury
CR >=
10
CR >= 5
On/Off
CR >=
10
CR >= 5
On/Off
HSD190ME13-A16
19" Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm
Anti-Glare, Hard coating (3H)
700 :1
150/135 (degrees; typ)
160/155 (degrees; typ)
16.2 million colors (6+2 bit panel)
300 cd/m2
8 ms
4 CCFL
50000 Hrs (Min)
3 mg per lamp
HSD 190ME13- A10
19" Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm
Anti-Glare, Hard coating (3H)
700 :1
150/135 (degrees; typ)
N/A (degrees; typ)
16.2 million colors (6+2 bit panel)
300 cd/m2
8 ms
4 CCFL
40000 Hrs (Min)
3 mg per lamp
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LCD PANEL
rd
source)
(3
3 INPUT SIGNAL Video
4 COMPATIBILITY PC
5 RESOLUTION
6 AUDIO Speaker
7 CONNECTORS
Panel:
Size
Pixel Arrange
Glass
Treatment
Contrast Ratio
Viewing Angle
Colors
Luminance
Response
Time
Backlight
Backlight Life
Mercury
Sync
Mac
Recommended
Video
Power
CR >=
10
CR >= 5
On/Off
Analog
Digital
HSD 190ME13-D10
19" Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm
Anti-Glare, Hard coating (3H)
700 :1
150/140 (degrees; typ)
N/A (degrees; typ)
16.2 million colors (6+2 bit panel)
300 cd/m2
8 ms
RGB Analog (75 ohms, 0.7 / 1.0 Vp-p), DVI
(TMDS, 100 ohms)
Separate Sync / Composite Sync / SOG
Fh = 24 – 82 kHz ; Fv = 50 – 75 Hz
PC Compatibles (from VGA up to 1280x1024 Non
Interlaced)
Power Mac (up to 1280X1024 )
1280x1024 @ 60Hz
640 x 350 @ 70Hz
640 x 400 @ 60, 70Hz
640 x 480 @ 50, 60, 67, 72, 75Hz
720 x 400 @ 70Hz
720 x 480 @ 60Hz
720 x 576 @ 50Hz
800 x 600 @ 50, 56, 60, 72, 75Hz
832 x 624 @ 75Hz
1024 x 768 @ 50, 60, 70, 75Hz
1152 x 864 @ 75Hz
1152 x 870 @ 75Hz
1152 x 900 @ 67Hz
1280 x 720 @ 50, 60Hz
1280 x 768 @ 50, 60, 75Hz
1280 x 960 @ 50, 60, 75Hz
1280 x 1024 @ 50, 60, 75Hz
1.5W x2
DB-15
DVI
Internal Power Adapter, 3-pin plug (CEE22)
8 POWER Voltage
Consumption
9 ERGONOMICS Tilt
Swivel
Height Adjust
Typ/Max
20 ~ -5 degrees
AC 100-240V (Universal); 50-60 Hz
35 W / 40 W
360 degrees
0 ~ 80 mm
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10 CONTROLS
Physical
OSD Function
Key
buttons
Main
Menu
Short cut
key
[PW], [Mute], [ 2 ], [Up], [Dn], [ 1 ]
Auto Image Adjust
Contrast/Brightness
Input Select
Analog, Digital
Color Adjust
sRGB, 9300K, 7500K, 6500K, 5400K, User
Color [R, G, B]
Information
Manual Image Adjust
Horizontal Size, H/V Position, Fine Tune,
Sharpness
Setup Menu
Language Select, Resolution Notice, OSD
Position, OSD Time Out, OSD Background
Memory Recall
[ 1 ] : Main Menu
[ 2 ] : Input Select
[Up] or [Dn] : Contrast / Brightness
[Up] + [Dn] : Recall both of Contrast and
Brightness to default
[ 1 ] + [ 2 ] : Toggle 720x400 and 640x400 mode
[ 1 ] + [Up] + [Dn] : Auto White Balance
[ 1 ] + [Dn] : Power Lock
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18 POWER
SAVING
FUNCTION
19 LOGISTICS Container
"On"
" Active Off"
“Off”
Load
(20' / 40')
Pallet Load
UPC Code
Serial Format
EDID Code
Country of
Blue
Amber
Off
Standard
Normal
≦1 W
≦1 W
260 / 624 pieces
26 pieces
76690722783 3
QC2
Byte 10 – 0 x 1E, Byte 11 – 0 x 99
China
origin
20 Wall Mount VESA 100mm x 100mm
21 OTHERS DDC/2B, KENSINGTON MicroSaver Security
Compatible, WorldWide Model.
22 Package
Contents
LCD Display
Power Cable
Video Cable
Audio Cable
Quick Start Guide
ViewSonic Wizard CD-ROM
23 Packaging
Information
Carton -- One piece construction with signal wall, 0.65 Kg
Plastic Handle -- PE-LD, 12g
Poly Foam -- EPS, 207g, 2 pices
Accessory Plastic Bags -- PE-LD, 2g
The PE bag that cover monitor -- PE-LD, 18g
Pallet (M Model ) -- Fumigation wood, 22.5Kg
Pallet (Others) -- Poplar, 22.5Kg
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3. Front Panel Function Control Description
Adjusting the Screen Image
Use the buttons on the front control panel to display and adjust the OSD controls which display
on the screen. The OSD controls are explained at the top of the next page and are defined in
“Main Menu Controls” on page 10.
Main Menu
with OSD controls
Front Control Panel
shown below in detail
Standby Power On/Off
Power light
Blue = ON
Orange = Power Saving
Audio Mute button turns the sound off
Displays the Main Menu or exits the control screen and saves
adjustments.
Scrolls through menu options and adjusts the displayed control.
Also a shortcut to display the Contrast adjustment control screen.
Displays the control screen for the highlighted control.
Also toggles between two controls on some screens.
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Do the following to adjust the display setting:
1. To display the Main Menu, press button [1].
NOTE: All OSD menus and adjustment screens disappear automatically after about 15
seconds. This is adjustable through the OSD timeout setting in the setup menu.
2. To select a control to adjust, pressSorTto scroll up or down in the Main Menu.
3. After the desired control is selected, press button [2]. A control screen like the one shown
below appears.
The command line at the bottom of the
control screen tells what to do next from
this screen. You can toggle between control
screens, adjust the selected option, or exit
the screen.
4. To adjust the setting, press the up S or down T buttons.
5. To save the adjustments and exit the menu, press button [1] twice.
The following tips may help you optimize your display:
• Adjust the computer's graphics card so that it outputs a 1280 x 1024 @ 60Hz video signal to
the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's
user guide.)
• If necessary, make small adjustments using H. POSITION and V. POSITION until the
screen image is completely visible
. (The black border around the edge of the screen should
barely touch the illuminated “active area” of the LCD display.)
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Main Menu Controls
Adjust the menu items shown below by using the up S and down T buttons.
ControlExplanation
Auto Image Adjust sizes and centers the screen image automatically.
Contrast adjusts the difference between the image background(black level)
and the foreground (white level).
Brightness adjusts background black level of the screen image.
Input Select toggles between inputs if you have more than one computer
connected to the VG930m.
Audio Adjust
Vol ume increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.
Color Adjust provides several color adjustment modes, including preset color
temperatures and a User Color mode which allows independent adjustment of
red (R), green (G), and blue (B). The factory setting for this product is 6500K
(6500 Kelvin).
sRGB-This is quickly becoming the industry standard for color management,
with support being included in many of the latest applications. Enabling this
setting allows the LCD display to more accurately display colors the way they
were originally intended. Enabling the sRGB setting will cause the Contrast and
Brightness adjustments to be disabled.
9300K-Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
7500K-Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
6500K-Adds red to the screen image for warmer white and richer red.
5400K-Adds green to the screen image for a darker color.
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ControlExplanation
User Color Individual adjustments for red (R), green (G),and blue (B).
1. To select color (R, G or B) press button [2].
2. To adjust selected color, pressSandT.
Important: If you select RECALL from the Main Menu when the product is
set to a Preset Timing Mode, colors return to the 6500K factory preset.
Information displays the timing mode (video signal input) coming from the
graphics card in the computer, the LCD model number, the serial number, and
the ViewSonic® website URL. See your graphics card’s user guide for
instructions on changing the resolution and refresh rate (vertical frequency).
NOTE: VESA 1280 x 1024 @ 60Hz (recommended) means that the resolution
is 1280 x 1024 and the refresh rate is 60 Hertz.
Manual Image Adjust
H. Size (Horizontal Size) adjusts the width of the screen image.
H./V. Position (Horizontal/Vertical Position) moves the screen image left or
right and up or down.
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ControlExplanation
Fine Tune sharpens the focus by aligning text and/or graphics with pixel
boundaries.
NOTE: Try Auto Image Adjust first.
Sharpness adjusts the clarity and focus of the screen image.
Setup Menu displays the menu shown below:
Language Select allows the user to choose the language used in the menus and
control screens.
Resolution Notice allows the user to enable or disable this notice.
If you enable the Resolution Notice shown above and your computer is set at a
resolution other than 1280 x 1024, the following screen appears.
OSD Position allows the user to move the OSD menus and control screens.
OSD Timeout sets the length of time the OSD screen is displayed. For example,
with a “30 second” setting, if a control is not pushed within 30 seconds, the
display screen disappears.
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ControlExplanation
OSD Background allows the user to turn the OSD background On or Off.
Memory Recall returns the adjustments back to factory settings if the display is
operating in a factory Preset Timing Mode listed in the Specifications of this
manual.
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4. Circuit Description
4.2 Power Board
Electric Spec :
Connection 9Pin NO. 6Pin NO. Symbol Description
9 NC DC-Output 24.0±10%Vdc / 50mA (Optional)
8 NC DC-Output 12±10%Vdc / 200mA (Optional)
7 6 BL-Adj Luminance Control ( 0Vdc~3.3Vdc )
CON802 6 5 ON/OFF ON : 3.3Vdc or 5.0Vdc ; OFF : 0V
4. 5 3. 4 DC-Output 5.0±5%Vdc / 2500mA
2. 3 1. 2 GND GND
1 NC DC-Output -8±10%Vdc / 100mA(Optional)
CON901~CON904
1 1 H.V High Voltage
2 2 Return Return Pin
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ELECTRIC TEST
1. POWER TEST :
1-1 . OUTPUT VOLTAGE TEST : Output 24V connect 50mA, CON801 Input
1-2 . HI-POT TEST :
1) Test Requirements – Input Voltage : 3.0KVdc
– Measurement Time : 3sec
– Temperature : 25 ± 5 ℃℃
2) A method of measurement : Injection voltage between Utility (Line and Neutral short) and output line (short
between + and - )
3) Criterion for Judging : PASS
1-3 . SHORT TEST PROTECT :
24Vdc SHORT to GND , POWER PROTECT .
12Vdc SHORT to GND , POWER PROTECT .
5Vdc SHORT to GND , POWER PROTECT .
-8Vdc SHORT to GND , POWER PROTECT .
1-4 . LOW POWER CONSUMPTION: Input 240Vac/50Hz Output NO LOAD , Power Consumption≦0.5W . 1-5 .
GROUND TEST :
1) Test Requirements – Input Current : 25A
– Measurement Time : 3sec
– Temperature : 25℃± 5℃
2) A method of measurement : Injection current between Utility F.G. (inlet socket F.G.) and output ground (heat
sink)
3) Criterion for Judging : ≦Resistor 100mΩ
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1-6 . Insulation Resistance
1) Test Requirements – Input Voltage : 500Vdc
– Temperature : 25℃± 5℃
2) A method of measurement : Test between Utility (live and neutral short) and output line (+ and - short).
(insulation resistance test)
3) Criterion for Judging : Insulation resistance ≧ 100MΩ 2. INVERTER TEST: 2-1. OPEN LAMP PROTECT
TEST :
Test Condition : ON/OFF PIN=3.3Vdc or 5.0Vdc , BL-Adj PIN=3.3Vdc or 5.0Vdc . Result : CN901~CN904
OPEN , INVERTER TURN ON CONTINUE 1~2 SECONDS SHUT DOWN .
2-2. KICK-OFF VOLTAGE TEST : Test Condition : ON/OFF PIN=3.3Vdc or 5.0Vdc , BL-Adj PIN=3.3Vdc or 5.0Vdc .
Result :
CN901~CN903 TEST CN904 H.V PIN Output Voltage≧1.5KV rms.
CN902~CN904 CONNECT TEST CN901 H.V PIN Output Voltage≧1.5KV rms .
WAITTING MERIT : AC INPUT 240Vac , NO Load
(L=80mm) INTRODUCTION :
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PIN NO. FOR RSDS
PANEL SPEC 24V 12V ADJ On/Off 5V GND -8V
PIN NO. FOR LVDS
PANEL SPEC NC NC ADJ On/Off 5V GND NC
9 8 7 6 5 4 3 2 1
NC NC 6 5 4 3 2 1 NC
OUTPUT VOLTAGE RISE TIME AC INPUT 90 Vac ~264Vac, <100mS .
AC ELECTRICITY TIME DELAY WHEN AC INPUT , OUTPUT VOLTAGE SHOULD WITHIN 1.5S .
SURGE ELECTRI CURRENT AC INPUT 240Vac .
PROTECT FOR SHORT CIRCUIT
PROTECT FOR OVER-CURRENT
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Input Voltage(V) Output(V) Output Current limits (A)