Sceptre X20g X20g-NagaIII X20g-NagaIII User manual

X20G-NagaIII
User’s Manual

i
FCC Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may
cause harmful inerference to radio communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to 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 different from that to which
the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Caution:
To comply with the limits for an FCC Class B computing device, always
use the shielded signal cord supplied with this unit.

ii
The Federal Communications Commission warns that changes or
modifications of the unit not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
CE mark for Class B ITE (Following European standard EN55022/1998; EN61000-
3-2/1995; EN61000-3-3/1995, EN55024/1998, EN60950/1992+A1+A2+A3+A4+A11)
Radio Frequency Interference Statement
Warning:
This is a Class B product. In a domestic environment, this product may
cause radio interference in which case the user may be required to take
adequate measures.
Canadian Doc Notice
For Class B Computing Devices
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus as set out in the Radio Interference
Regulation of the Canadian Department of Communications.
“Le présent appareil numérique n’èmet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la class B
prescrites dans le Règlement sur le brouillage radioélectrique édicté par
le ministère des Communications du Canada."

iii
TABLE OF CONTENTS
TABLE OF CONTENTS ..........................................................................................III
Your New LCD Monitor 1
Unpacking 1
Identifying Components 3
Adjusting the Tilting Angle 5
Connecting AC Power and Video Cable 6
Power Management System 7
The LCD Monitor’s Control Panel 8
Adjusting the Monitor’s Display 9
TFT LCD Monitor Specifications 14
Supported Timing 16
Troubleshooting 18

1 Rev.2
The LCD Monitor
Your New LCD Monitor
Your LCD Monitor has been designed to be versatile, ergonomic and
user-friendly. The LCD Monitor is capable of displaying most
standards, from 640x400 VGA to 1680x1050 WSXGA+. The digital
controls located on the front panel allow the user to easily adjust the
Monitor’s display parameters, and the LCD Monitor’s small footprint
gives you more room in your workspace for other peripherals.
Lightweight and compact, the LCD Monitor is the perfect solution for
users on the go. You can use the LCD Monitor for everything from
making business presentations to playing computer games. The
Monitor also has a wall-mountable stand for added convenience.
The architecture of the LCD Monitor incorporates an LCD panel that produces a clear display
with low radiation emission. And with its low power consumption, the LCD Monitor helps you
reduce your power bill.
Unpacking
Before unpacking your LCD Monitor, prepare a suitable workspace for
your LCD Monitor and computer. Look for a stable, level and clean
surface near a wall outlet. Even though the LCD Monitor uses very little
power, you should put it in a location, which allows sufficient airflow to
ensure that the LCD Monitor and your computer do not overheat. Set up
your LCD Monitor so that the panel is not facing a window where sunlight
often comes in. The glare caused by sunlight reflecting off of the LCD
Monitor’s screen will make it difficult to use the Monitor for viewing.

2 Rev.2
Note: Using a computer for an extended period of time with a poor workstation
set-up and incorrect working habits can cause health problems. The science of
ergonomics studies the relationship between health and a suitable working
environment. There is a section on ergonomics at the end of this chapter. For
more information on ergonomics, contact your nearest computer bookstore, or
local library. The Internet also has information on this and other subjects.
If you previously were using a CRT monitor instead of a LCD monitor, please do not
connect the LCD monitor to your computer yet. Please use the CRT monitor and turn on
your computer. Make sure your video card’s refresh rate is at 60hz in the Display Setting’s
Advance Menu under the Display Adapter tab. Once that is achieved you can then turn off
the computer and plug your new LCD monitor in
After unpacking your LCD monitor, make sure the following items are included
in the box and are in good condition:
•LCD monitor
•Power Cord
•Monitor-To-PC Analog signal cable 15pin
•Monitor-To-PC DVI signal cable
•1.5M stereo Jack Audio Cable
•User’s manual
¾DVI- to- YpbPr cable – option
¾1.5M RCA jack to stereo jack cable - option
If you find that any item to be missing or appear to be damaged, contact
your dealer immediately. DO NOT throw away the packing material or
shipping carton in case you need to ship or store the LCD monitor in the
future.

3 Rev.2
Identifying Components
A. The LCD Monitor — Front View
Figure 1-1: The LCD Monitor Front View
1. Sceptre logo Indicator
This Logo indicator will light on for 3 minutes , then dimmer
2. Monitor Stand
3. LCD Screen
The LCD monitor is a 20.1-inch TFT 1680 x 1050 Wide
WSXGA+ screen.
4. LCD Monitor Control Panel
Refer to Chapter 2 for more details.
1
3
2
1
4

4 Rev.2
B. "Hot Keys" for Quick Adjustment of Monitor Settings
Figure 1-2: "Hot Keys"
1. Brightness adjustment "hot key":
Press - or + buttons to allow you to
adjust the brightness function
50
- +
2. Source select “ Hot Key :
Press S button to allow you to change
the input source between DVI port and
RGB port, if the screen can’t detect
signal, then it will switch to the next
automatically
If DVI port connects to a PC , display
PC screen.
If DVI port connects to a HD TV signal
box, the screene will display HDTV
video. It should use DVI to YPbPr
cable to connet to HD video signal.
Source D-Sub
Source DVI
3. Auto-Adjustment “ Hot Key”
Press Ybutton then release. The
monitor will automatically adjst the
video timing to get the best display
performance

5 Rev.2
Adjusting the Tilting Angle
The LCD Monitor’s angle settings range from 0°to 10°.
10
Figure 1-4: Tilting the Monitor
0 to 10

6 Rev.2
Connecting AC Power and PC Video Cable
Note: Turn off your PC and the LCD monitor before connecting your LCD monitor to the computer.
DVI
VGA
Audio
AC-IN
AC Outlet
(Wall Socket)
Computer Power Cord
Figure 1-5: PC conenction
Connecting with YPbPr configuration
DVI to Ycbcr cable
Audio
AC-IN
A
C Outlet
(Wall Socket)
Computer Power Cord
Figure 1-6
Note: Our machine can support up to 1080P YPbPr signal
DVI to YPbPr Cable
RCA to
Stereo
Jack cable

7 Rev.2
Power Management System
This LCD Monitor complies with the VESA DPMS power management proposal.
When the LCD Monitor is in power-saving mode or detects an incorrect timing, the monitor screen
will be blank and the power LED indicator starts blinking.

8 Rev.2
The Display Controls
The LCD Monitor’s Control Panel
Figure 2-1: The Control Panel
1. Cursor Movement button Y&Z
These buttons let you move horizontally across your settings
2. Ajustment button - & +
These buttoms let you to change the setting value or move
to next sub-menu
3. Menu: OSD Menu button
Press this button to display the OSD (On-Screen Display)
menu.
4. Source: Source select hot key
Press this button to change the input source from D-Sub to
DVI
5. Power Switch
This button lets you turn power for the LCD monitor ON or
OFF.

9 Rev.2
Adjusting the Monitor’s Display
OSD Main Menu
1. Pressing the OSD Menu button causes the screen below to appear.
2. Use the Y&Zkey to select the desired group, then press - & + key
to the sub-menu
3. Repeat step 2 to select the changed item, then press - & + to change the value.
4. Press the Menu to return to the sub-menu item 3 to another adjustment
The OSD Main Menu
OSD Main SCREEN
Timing : 1680 x 1050
V/H Freq : 74.6Hz 79KHz
Sceptre X20G-NAGA III
Recommned 1680 x 1050 or
1280 x 720

10 Rev.2
Auto Adjust Option
The Auto Adjust option lets the monitor determine and
select the settings that are most appropriate for your
system requirements.
Note: it only apply for Analog RGB input
Provides you with the current display timing information.
Brightness and Contrast Adjustment
Adjusts the Brightness value
Adjusts the Contrast value
Execute the white balance function
Return to the previous Menu
Audio Function
Volume : Adjust the speaker volume
Mute : Mute the speaker
Return
Color Temperature Adjustment

11 Rev.2
Set up the color temperature value
User Mode
Sets the color temperature to 6500K
Sets the color temperature to 9300K
Red change Red gain for the color temperature
(only valid when color temperature set at user mode )
Green change Green gain for the color temperature
(only valid when color temperature set at user mode )
Blue change Blue gain for the color temperature
(only valid when color temperature set at user mode )
Return to the previous Menu
Display Quality Adjustment
Auto Adjust : use this option to apply automatically setting
Changes the screen viewing size

12 Rev.2
Adjusts phase tracking to reduce display flicker
Moves the whole screen right or left
Moves the whole screen up or down
Return to the previous Menu
OSD Adjustment
Restores settings to factory default values
Sets the OSD timer
Moves the OSD menu horizontally
Moves the OSD menu vertically
Set the graphic mode or text mode
Return to the previous Menu
Exit the OSD screen

13 Rev.2
Note:
1) No video
When the monitor is ON and there is no video signal received,
the following message will be displayed
2) Signal out of range
When the frequency range of the signal is out of the Monitor’s specifications, (over 85HZ) the
display will show the following message
Out of Range

14 Rev.2
Appendix A
TFT LCD Monitor Specifications
Item Specification
LCD Panel 20.1" WSXGA+
Control
Functions
Power
Software Power switch with LED indicator
(ON/OFF)
Main Menu Submenu
Information
Brightness
/Contrast Control
Brightness/Contrast/White
balance/Exit
Audio Control Volume/Mute/Exit
Color temperature
Control
User mode, 9300K, 6500K
R,G,B, gain value
Display Quality Auto Adjustment/Phase
adjustment/Screen Size/ Screen
Horizontal position/Screen Vertical
position/Exit
On-Screen
Display
(OSD)
OSD adjsutment Restore to the default/OSD timer/OSD
Horizontal Position/OSD Vertical
Position/640&720/Exit
Display Area
(mm)
433.44 x 270.9
(20.1" diagonal)
Display
Colors
16.7 M
Video
Interface
VGA Compatible Analog RGB
DVI compatible signal
HD Video
Interface
480i/480P/720i/720P/1080i/1080P

15 Rev.2
Scanning Frequency
H/V, Hz
24-91K
50-85
Power Management Meets VESA DPMS
Power Consumption
(ON/OFF, W)
51.6W/1W Max.
Dimensions
WxHxD
18.72 x 15.14 x 6.69 in.
(475.4 x 384.5 x 170mm)
Net Weight
(approx.)
16.256 lbs
(6.4 Kg)
Power Supply Universal Input AC Socket
Environment Operating Temperature: 32 to 104°F (0 to 40° C)
Relative Humidity: 10% to 90%
Regulatory FCC B DoC,UL/cUL,Energy star

16 Rev.2
Appendix B
Supported PC Timing
Item Standards Resolution Dot Clock
(MHz)
Vertical
Scanning
Frequency
(Hz)
Horizontal
Scanning
Frequency
(kHz)
1 NEC PC98 640x400 21.05 56.42 24.83
2 MAC 13" mode 640x480 30.24 66.67 35.00
3 MAC 17" mode 1024x768 80.00 75.02 60.24
4 VGA 640x350 25.18 70.09 31.47
5 VGA 640x400 25.18 70.09 31.47
6 VGA 640x480 25.18 59.94 31.47
7 VESA 640x480 31.50 72.81 37.86
8 VESA 640x480 31.50 75.00 37.50
9 VESA 640x480 36.00 85.00 43.30
10 VESA 800x600 36.00 56.25 35.16
11 SVGA 800x600 40.00 60.32 37.88
12 VESA 800x600 50.00 72.19 48.08
13 VESA 800x600 49.50 75.00 46.88
14 VESA 800X600 56.25 85.00 53.70
15 VGA 720x400 28.32 70.09 31.47
16 VGA 832x624 57.28 74.55 49.73
17 XGA 1024x768 65.00 60.00 48.36
18 VESA 1024x768 75.00 70.07 56.48
19 VESA 1024x768 78.75 75.03 60.02
21 VESA 1152X864 108. 75.00 68.70
22 VESA 1280X1024 108 60 63.98
23 VESA 1280X1024 135 75 80
25 Non-VESA 1280x720 74.02 60 44.7
26 VESA 1280x960 108 60 60
28 Non-Vesa 1680X1050 146.250 60 65.3
*Once a mode is optimized, there is no need to make any further adjustment
as long as the VGA card remains unchanged.
*Specifications are subject to change without notice.