Polestar HD-20A User manual

20”
Color TFT LCD Monitor
User’s Manual
FCC and CE Radiation Norm
FCC
This equipment has been tested and found to comply with limits for Class B digital
device pursuant to Part 15 of Federal Communications Commission (FCC) rules.
CE
This equipment has been tested and found to comply with the limits of the
European Council Directive on the approximation of the law of the member states
relating to electromagnetic compatibility (89/336/EEC) according to EN 55022
Important NoticePlease read this manual carefully.

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Class B.
FCC and CE Compliance Statement
These limits are designed to provide reasonable protection against frequency
interference in residential installation. This equipment generates, uses and can
radiate radio frequency energy, and if not installed or used in accordance with the
instructions, may cause harmful interference to radio communication. However,
there is no guarantee that interference will not occur in television reception, which
can be determined by turning the equipment off and on. The user is encouraged to
try and correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and the receiver
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected to.
CAUTION!
The Federal Communications Commission warns the user that changes or modifications to the
unit not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Precaution
Read all of these instructions and save this manual for later use. Follow all
warnings and instructions on the product.
1. Do not cover or block the ventilation holes in the case.
2. Do not insert sharp objects or spill liquid into the LCD monitor through the cabinet
slots; this may cause accidental fire, electric shock or failure.
3. Unplug the unit when not in use for an extended period of time.
4. Do not attempt to service this product yourself, as opening or removing the cover may
expose you to potential electric shock. Only a qualified technician should service this
product.
5. Do not touch the screen directly with your fingers as it may damage the screen; the
oil from your skin is difficult to remove.
6. Do not apply pressure to the screen, the LCD is very delicate.
7. Keep the monitor away from extreme heat, cold or humid places.
8. Do not place directly under sunlight, dusty surroundings or near equipment, which
may generate strong magnetic fields.
9. Please keep at least 2 seconds between each time turn ON/OFF the monitor.

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Introduction
Product Description
Thank you for choosing the Flat Panel TFT-LCD Color Monitor. It combines the features of a
MONITOR with a THIN FILM TRANSISTOR Liquid crystal display (TFT-LCD). This new
generation of TFT-LCD incorporates a high quality display in a lightweight module.
Unlike CRT displays, the LCD panel has a fixed pixel format over a set area. So, for
best performance the “native resolution” setting is recommended.
For 20” LCD monitors : The native resolution of the LCD panel is 1600 x 1200.
Recommended resolution is 1280 x 1024 @ 60Hz or 1024 x 768 @ 60Hz
Package Contents
Please check the TFT-LCD Monitor Package to make sure it contains the following items:
LCD Monitor
Power Cord
DC Adapter
VGA Cable

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Users Manual Audio Cable
Menu Control Buttons
AUTO MENU -+/ MUTE Power
LED
Power : Power on/off control
Auto : Automatically adjusts for an optimal image.
Menu : Selects command function
- : Decreases value.
When OSD not on the screen, push " - " for volume adjust.
+ / MUTE : Increase value.
When OSD not on the screen, push " +/MUTE " to enable/disable volume MUTE
function .
LED : Power On: Green Light
Power Saving or No Signal: Orange Light
Menu Operating Instructions
Your LCD monitor allows you to easily adjust the characteristics of the image being displayed.

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All of these adjustments are made using the control buttons on the front of the monitor. While
you use these buttons to adjust the controls, the OSD (On Screen Display) shows you their
numeric values as they change.
AUTO MENU - + / MUTE POWER
AUTO 1. Auto adjusting for an optimal image.
MENU 1. Opens the OSD. (On Screen Display)
2. Select the highlighted function.
POWER 1. Turns ON/OFF the monitor.
2. Indicates the status of the monitor.
zGreen: Normal operation.
zOrange: Power saving mode or disconnected signal cable.
-1. Decrease the values of the selected function.
2. Move the selector light-bar down.
3. When OSD not on the screen, push “-” for volume adjust.
+/MUTE 1. Increases the values of the selected function.
2. Move the selector light-bar up.
3. When OSD not on the screen, push “+/MUTE” to enable/disable volume MUTE.
Direct Access Features
1. Push “AUTO” can get the optimal image.
2. With the OSD off, push the “MENU” button to display the main OSD menu.
3. Use " +/ - " buttons to select the function, and press the “MENU” button once to activate the
selected function.
4. After selecting a function, use the " +/ -" buttons to make necessary adjustments. The
setting bar moves and the numeric value indicator changes to reflect your adjustments.
5. Select the “EXIT” icon to return to the main menu to select another function or to exit from the
OSD. The new Settings will be automatically saved.
6. When OSD not on the screen : push " - " can into volume adjust function.
push " +/MUTE " can enable/disable volume MUTE function.

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On Screen Display (OSD)
Functions Adjustment
Item Description
AUTO SETUP Automatically adjust for an optimal image. 
BRIGHTNESS Adjust the brightness scale.
CONTRAST Adjust the contrast scale.
DISPLAY
ADJUST Adjust the horizontal, vertical, frequency, and phase
scale. 
COLOR
TEMPERATURE To select the 9300K, 7500K, 6500K, and RGB color
temperature.
LANGUAGE Select OSD language.
OSD DISPLAY Adjust OSD display.
VGA / DVI Select Analog or Digital signal input.
(This function only work on DVI model with DVI graphic card )
AUDIO Adjust the speaker volume.
RECALL Reset all functions to factory settings.
EXIT Exit the OSD.
Normally , for VGA analog signal input , after “ AUTO SETUP ” can get the
optimal image performance . No necessary to manual adjust.
When DVI digital signal input , “ AUTO SETUP ” and “ DISPLAY ADJUST ”
function is not necessary. The image performance depends on your graphic
card.
Display Modes

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Mode Resolution Vertical Frequency
( Refresh Rate )
1 640 X 350 50Hz
2 640 X 350 60Hz
3 640 X 350 70Hz
4 720 X 400 50Hz
5 720 X 400 60Hz
6 720 X 400 70Hz
7 640 X 480 50Hz
8 640 X 480 60Hz
9 640 X 480 66Hz
10 640 X 480 72Hz
11 640 X 480 75Hz
12 800 X 600 56Hz
13 800 X 600 60Hz
14 800 X 600 72Hz
15 800 X 600 75Hz
16 1024 X 768 60Hz
17 1024 X 768 70Hz
18 1024 X 768 72Hz
19 1024 X 768 75Hz
20 1280 X 1024 60Hz
21 1280 X 1024 75Hz
22 1600 X 1200 60Hz
To set the Time Mode:
1. Set the resolution:
Right click on the Windows® desktop→choose Properties →choose Settings →set
the resolution.
2. Set the refresh rate:
See your graphic card’s user guide for instructions.
Specification
Item Description Unit
Display Size 20” Inch
Active Area *408 (H) X 306 (V) mm
Maximum Resolution *1600 x 1200 dot

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Pixels Pitch *0.255 mm
Aspect Ratio 4 : 3
Display Colors 16.7 M
Brightness *(Typ.) 250 cd/m2
Contrast Ratio *700 : 1
Response Time (Tr+Tf)*16 ms
View Angle *170° (H) / 170° (V)
Vertical Frequency 56 ~ 75 Hz
Horizontal Frequency 31.5 ~ 80 KHz
Refresh Rate 56 ~ 75 Hz
Signal Interface (standard )D-Sub ( Analog )
Power Consumption
(Operation) < 55 W
AC 100V ~ 240V47Hz ~ 63Hz
Power Supply (Adapter) DC 12V / 5A
OSD Language Multi-Language
Speaker 2 Watt X 2
VGA Cable X 1Audio Cable X 1
Power Cord X 1User Manual X 1
DC Adapter X 1
Accessory
Regulations UL, FCC-B, CE, BSMI *These items depend on panel spec.
Cleaning Notice
1. Gently wipe the screen with a clean, soft, lens brush or a soft clean, lint-free cloth. This
removes dust and other particles that can scratch the screen.
2. Do not apply pressure to the screen surface when wiping it clean.
3. Do not pour or spray any liquid directly onto the screen or case of the LCD monitor.
Chemical cleaners may damage the screen or the LCD monitor.
Troubleshooting

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LCD Pixel Statement
The LCD unit is produced with high-precision manufacturing techniques.
Nevertheless, some pixels may occasionally misfire or appear as black or
colored dots. This has no effect on the recorded image and does not
constitute a malfunction.
Normally, a 20" UXGA (1600 x 1200) display has nearly 6 million sub-
pixels. There are 8 non-performing pixels on the LCD screen, which is only
0.0001% of the total sub-pixels. This percentage is acceptable for any
inspection specifications.
There is no picture on the screen.
A: Please check the color of the LED indicator on the LCD monitor.
1. “GREEN”: During normal operation the LED light will be green. If it is green and there is
no picture contact the customer service line.
2. “ORANGE”: please check the connection of the VGA cable to the monitor and the
connection to the computer.
3. “NO POWER”: Make sure the power cord is securely connected to the adapter and
the light on the Adapter is green.
Missing Colors
A: If any of the red, green, or blue colors are missing, check the signal cable to make sure it
is tightened correctly. The pins in the cable could be loose and cause a bad connection.
No image
A: 1. Make sure power button is ON.
2. Check whether the LCD monitor and computer power cords are connected and
whether there is a supply of power.
No Signal Input
A: Check the signal connection between the computer and LCD monitor.
Image too bright / Image too dark
A: Adjust brightness and contrast by OSD.
Irregular image
A: 1. Check the signal connection between the computer and LCD monitor.
2. Perform Auto Adjust.
Distorted image
A: Reset the LCD monitor. (Perform the “Recall” function by OSD)
Image is not centered / Size is not appropriate
A: 1. Use OSD Image Menu to adjust H. Position and V. Position.
2. Check image size setting.
3. Perform Auto Adjust.
Uneven color / Color too dark / Dark area distorted / White color is not white
A: Use OSD Color Temperature Menu to adjust color setting.
No sound
A: 1. Check the audio signal cable connection between the computer and LCD monitor.
2. Maybe mis-press the “+/MUTE” button; try to press “+/MUTE” button to disable the
volume MUTE function.