DMT 101321 User manual

Stand-alone Interface
LED Pixelscreen
ORDERCODE 101321

Congratulations!
You have bought a great, innovative product from DMT.
The DMT Stand-alone Interface for LED Pixelscreen brings excitement to any venue.
You can rely on DMT, for more excellent lighting products.
We design and manufacture professional light equipment for the entertainment industry.
New products are being launched regularly. We work hard to keep you, our customer, satisfied.
For more information: [e-mail]
You can get some of the best quality, best priced products on the market from DMT.
So next time, turn to DMT for more great lighting equipment.
Always get the best -- with DMT !
Thank you!

1
2
2
3
4
4
5
6
6
6
9
10
11
12
13
14
15
16
17
18
18
19
DMT
DMT Stand-alone Interface for LED Pixelscreen ™Product Guide
Warning.................................................................................…...……………..…………………………….………..…..
Safety-instructions…………………………………………………………………………………………………………
Operating Determinations.………………………………………………………………………………………………
Description...............................................................................…...………………………………………….………..…
Features and Overview ………………………………...….……………….………….……….……….………………
Backside…………………………………………………...…...….……………….…………………...……………….…
Installation...............................................................................…...…………………………………………………..…..
Set Up and Operation.....................................................................……..…………………………….………………..
Installing the Sender Card in the Stand-alone Interface………………………………………………………….
Connection Diagram…………………………………………..….…………..……………………………..………….
User operations through software control….…………………………………..….………….…….……………….
Operations of engineering setup…………………………..….…………..……………………….……..……………
LED window setup…………………………..….…………..……………………………..………………………………
Video Chrom/Hue Adjustment…………………………..….…………..……………………………..………………
GAMMA value setup…………………………..….…………..……………………………..…………………………..
VGA Sampling Phase/Clock Adjustment…………………………..….…………..……………………………..….
Sync Mode select…………………………..….…………..……………………………..………………………………
Button Operations…………………………..….…………..……………………………..………………………………
Maintenance...................................................................................………..………….…….……………………..……
Troubleshooting............................................................................………………….………………….…………………
Product Specifications.................................................................……………….…….…………………………………

2
WARNING
FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY
BEFORE YOUR INITIAL START-UP!
SAFETY INSTRUCTIONS
Every person involved with the installation, operation and maintenance of this device has to:
-be qualified
-follow the instructions of this manual
Before your initial start-up, please make sure that there is no damage caused by transportation. Should
there be any, consult your dealer and do not use the device.
To maintain perfect condition and to ensure a safe operation, it is absolutely necessary for the user to
follow the safety instructions and warning notes written in this manual.
Please consider that damages caused by manual modifications to the device are not subject to
warranty.
This device contains no user-serviceable parts. Refer servicing to qualified technicians only.
IMPORTANT:
The manufacturer will not accept liability for any resulting damages caused by the non-
observance of this manual or any unauthorized modification to the device.
Never let the power-cord come into contact with other cables! Handle the power-cord and all
connections with the mains with particular caution!
Never remove warning or informative labels from the unit.
Never leave any cables lying around.
Never use the device during thunderstorms, unplug the device immediately.
Do not open the device and do not modify the device.
Do not insert objects into air vents.
Do not connect this device to a dimmerpack.
Do not shake the device. Avoid brute force when installing or operating the device.
Do not switch the device on and off in short intervals, as this would reduce the system’s life.
Only use device indoor, avoid contact with water or other liquids.
Avoid flames and do not put close to flammable liquids or gases.
Only operate the device after having familiarized with its functions.
Always disconnect power from the mains, when device is not used or before cleaning! Only
handle the power-cord by the plug. Never pull out the plug by tugging the power-cord.
Make sure that the device is not exposed to extreme heat, moisture or dust.
Make sure that the available voltage is not higher than stated on the rear panel.
Make sure you don’t use the wrong kind of cables or defective cables.
Make sure that the power-cord is never crimped or damaged. Check the device and the power-
cord from time to time.
If the external cable is damaged, it has to be replaced by a qualified technician.
CAUTION!
Keep this device away from rain and moisture!
Unplug mains lead before opening the housing!
CAUTION! Be careful with your operations.
With a dangerous voltage you can suffer
a dangerous electric shock when touching the wires!

3
If device is dropped or struck, disconnect mains power supply immediately. Have a qualified
engineer inspect for safety before operating.
If the device has been exposed to drastic temperature fluctuation (e.g. after transportation), do
not switch it on immediately. The arising condensation water might damage your device. Leave
the device switched off until it has reached room temperature.
If your DMT device fails to work properly, discontinue use immediately. Pack the unit securely
(preferably in the original packing material), and return it to your DMT dealer for service.
The user is responsible for correct positioning and operating of the stand-alone interface. The
manufacturer will not accept liability for damages caused by the misuse or incorrect installation
of this device.
This device falls under protection class I. Therefore it is essential to connect the yellow/green
conductor to earth.
Repairs, servicing and electric connection must be carried out by a qualified technician.
For replacement use fuses of same type and rating only.
WARRANTY: Till one year after date of purchase.
OPERATING DETERMINATIONS
This device is not designed for permanent operation. Consistent operation breaks will ensure that the
device will serve you for a long time without defects.
The maximum ambient temperature ta= 45°C must never be exceeded.
The relative humidity must not exceed 50 % with an ambient temperature of 45° C.
If this device is operated in any other way, than the one described in this manual, the product may suffer
damages and the warranty becomes void.
Any other operation may lead to dangers like short-circuit, burns, electric shock, lamp explosion, crash
etc.
You endanger your own safety and the safety of others!
Connection with the mains
Connect the device to the mains with the power-plug.
Always pay attention, that the right color cable is connected to the right place.
International
EU Cable
UK Cable
US Cable
Pin
L
BROWN
RED
YELLOW/COPPER
FASE
N
BLUE
BLACK
SILVER
NUL
YELLOW/GREEN
GREEN
GREEN
EARTH
Make sure that the device is always connected properly to the earth!
Improper installation can cause serious damage to people and property !

4
Description of the device
Features
The Stand-alone Interface for LED Pixelscreen is designed for the more demanding user:
• Digital Video decoder
• State of the art Motion adaptive de-interlace processor
• Intelligent edge de-interlacing
• Digital color/luminance transient improvement (DCTI, DLTI)
• Advanced 4*4 pixels interpolation scaling algorithm
• Independent H- and V-scaling ratios
• 10 Bit processing
• 3 sets user defined gamma value from 0,4 to 3,99
• Advanced 4 symbol LUT for H and V enlargement scaler
• User defined LED screen size and location
• 8 sources direct selectable
•Interface can be used in combination with: LED Pixelmesh (101150)
Pixelscreen Module P16 (101310)
Pixelscreen Module P25 (101300)
NOTE: The PCI Sender Card has to be installed inside the Stand-alone Interface
Overview
Fig. 1
1) V1 –V4 Buttons: switch to V1~V4 CVBS input
2) Y/C: switch to s-video input
3) YPbPr: switch to high-definition component video signal input
4) VGA: switch to computer analog signal input
5) DVI: switch to computer digital signal input
6) BRT -: Brighness +
7) BRT +: Brightness -
8) DEF:
9) STD:
10) FULL
11) PART
12) ON / OFF

5
Backside
Fig. 2
13) 110~220V IEC Connector
14) RS232 IN: RS232 serial communication input
15) DVI OUT Output for DVI devices, DVD player, PC, etc
16) VGA OUT: 1-channel computer analog signal output, which can be connected to a display device
and used as monitor.
Note: The default setting in SyncMode is Force, some VGA monitors may be flickering or
display nothing at all. To get a steady clean and crisp image on your VGA
monitor, you must change the setting in SyncMode from Force to Free by using
RS232 Software.
17) RS232 OUT: RS232 serial communication output, connected to the next device with RS232
18) DVI IN: Input for DVI devices, DVD player, PC, etc.
19) VGA IN: Input for VGA devices, PC, etc.
20) V1-V4 IN: 4-channel PAL/NTSC system compound video input
21) Y/C: 1-channel PAL/NTSC system S-Video input
22+23+24) YPbPr : 1-channel HDTV component signal input
25) SW 1-4: RJ-45 output for connecting the LED screen

6
Installation
Remove all packing materials from the Stand-alone Interface. Check that all foam and plastic padding is
removed. Connect all cables.
Do not supply power before the whole system is set up and connected properly.
NOTE: 1) The stand-alone unit only works when the PCI Sender Card (Fig. 3) from the LED screen is
inserted into the stand-alone interface.
2) First configure the Sender Card in the PC, upload all config settings to the Sender Card.
3) Check if the LED Screen works with the uploaded settings.
4) Now switch the PC off and remove the Sender Card.
5) The Sender Card now has to be installed in the Stand-alone Interface .
Fig. 3
Set Up and Operation
Before plugging the unit in, always make sure that the power supply matches the product specification
voltage. Do not attempt to operate a 120V specification product on 230V power, or vice versa.
Always disconnect from electric mains power supply before cleaning or servicing.
Damages caused by non-observance are not subject to warranty.
Installing the Sender Card in the Stand-alone Interface
Remove the following 9 screws:

7
Disconnect the Flatcable:
Disconnect the 2 connectors:

8
Connect the DVI and the CAT Cable:

9
Connection Diagram

10
User operations through software control
Interface of user control software
Fig. 4
Operation Instructions
Run the LedSync820Bv203en.exe, and the software will start the user control interface as shown in Fig. 4.
First of all, select the COM port through which the LedSync820B is connected to the PC connect.
Example: In Fig. 4, COM1 is selected.
SOURCE_SELECT:Select the input signal, you can choose 8 different sources: V1, V2, V3, V4, SV, YRB, VGA
or DVI. The buttons on the screen correspond with the buttons on the front of the stand-
alone interface.
BRIGHTNESS:You can select the brightness of the output image brightness.
1= lowest brightness, 8 = highest brightness.
GAMMA / Video Chrom: DEF on the screen corresponds with the DEF button on the front of the stand-
alone interface.
GAMMA / Video Chrom: STD on the screen corresponds with the STD button on the front of the stand-
alone interface.
FULL / PART:FULL on the screen corresponds with the FULL button on the front of the stand-alone
interface.
FULL / PART:PART on the screen corresponds with the PART button on the front of the stand-alone
interface.

11
Operations of engineering setup
Interfaces of engineering setup
Click the button LED SETUP on the user interface and enter the password 123456 in the dialog box (Fig. 5)
Fig. 5
Enter the interface setup as shown in Fig. 6 below:
Fig. 6

12
Select COM port
Select the COM port through which the PC is connected to the interface. In Fig. 6, COM1 is selected.
LED window setup
To scale all the input video images on the LED display screen, you should customize the size and the
location of interface’s output image.
1) Select LED Window Setup in the Setup Select menu to enable the LED Window Setup column.
Fig. 7
2) Press the FULL button in the LED window setup, now you shift the output image of the interface to be
displayed in FULL mode.
3) Select the current output format of the interface in the Output Resolution column. As shown in Fig. 7,
XGA is selected. At the same time, this operation will read back the LED window’s size and location.
4) Enter the horizontal start location of the output image in the column Hori_Str, as shown in Fig. 7, press
the saving button to save the value.
5) Enter the horizontal width value of the output image in the column Hori_Width. Generally, this value
Is equal to the horizontal pixels of the LED screen, as shown in Fig. 7. Press the saving button to save the
value.
6) Enter the vertical start location of the output image in the column Vert_Str, as shown in Fig. 7, press the
saving button to save the value.
7) Enter the vertical height of the output image in the column Vert_Heigh. Generally, this value is equal to
the vertical lines of the LED screen, as shown in Fig. 7. Press the saving button to save the value.

13
Video Chrom/Hue Adjustment
The interface has been set with a standard factory default video status. Generally, it is unnecessary to
change the Video Chrom/Hue! However if you want to change them, follow the instructions below.
1) Select Video Chrom/Hue in the Setup Select menu to enable the Video Chrom/Hue column.
Fig. 8
2) Click the DEF button in the column DEF/STD to enable the video input selection button.
3) Select a valid video input to read the user-defined data stored in the interface and use the adjustment
scroll bar.
4) Adjust Chrom and Hue by clicking on the corresponding scroll bar.
5) Click the Std button to return to the standard default setting of the video chrom or hue value.

14
GAMMA value setup
The interface has been set with a factory default value GAMMA=1. You do not need to change the
default setup, unless you want a certain specific setup!
For specific users, you can alter the GAMMA values from 0.4~3.99. Follow the procedures below to
change the value:
1) Select GAMMA in the Setup Select menu to enable the GAMMA column.
Fig. 9
2) Select DEF in the column GAMMA Setup, then the previous GAMMA value in the interface will be read
back. After reading, we can enter a new desired GAMMA value in the column GAMMA Value.
If we enter a value of 120, means that actual GAMMA value is 120/100=1.2.
3) Click the Saving button, the prompt column will show Please waiting… at the moment the control
software is writing the new GAMMA value into interface. When the interface is ready, the prompt
column will show ok.
4) In STD mode GAMMA=1, and no one can change this setting.

15
VGA Sampling Phase/Clock Adjustment
Generally, the VGA sampling clock is unnecessary to change !!
To get a clear VGA image, you sometimes have to adjust the VGA sampling phase. Follow the
instructions below.
1) Select VGA Sampling Phase in the Setup Select menu to enable the VGA iN Sampling Clock/Phase
column .
Fig. 10
2) Click the Read VGA in status button in the column VGA iN Sampling Clock/Phase to read the current
VGA input status.
3) Click the Phase scroll bar to change the VGA sampling phase, when the VGA image is clearly shown,
the adjustment procedure is finished.

16
Sync Mode select
The default factory setting in SyncMode is Force, some VGA monitors may be flickering or display nothing
at all. To get a steady clean and crisp image on your VGA monitor, you must change the setting in
SyncMode from Force to Free. Follow the instructions below.
1) Select SyncMode in the Setup Select menu to enable the SyncMode column .
Fig. 11
2) Click the Free button in the column SyncMode to set the interface’s output to free sync mode.
Note: With the output sync mode set to Free, the image may have some line-flickering. To avoid
this, you must set the vertical start location of the output image in the column LED window setup
to Vert_Str=0 .
Initialize the interface
When data-loss occurs due to powerfailure or other causes, the controller can be set back to standard
factory default settings. Follow the instructions below.
1) Click the LED SETUP button on the user interface and enter the password 654898 in the dialog box.
You will enter the interface setup as shown in Fig. 12 below:
Fig. 12
2) Click YES to initialize the interface and then shut off the power. When the power is turned back on, the
interface will work with the standard factory default settings.

17
Button Operations
1.1 Select the video input source
1) V1 –V4 Buttons: switch to V1~V4 CVBS input
2) Y/C: switch to s-video input
3) YPbPr: switch to high-definition component video signal input
Note: To get a clear HDTV image, click the “YPbPr” button 6 times continuously, and then you have to
click YPbPr button again and again to change the HDTV image sampling phase. When the
HDTV image is clearly shown, the adjustment procedure is finished.
4) VGA: switch to computer analog signal input
Note: To get a clear computer image, click the VGA button 6 times continuously, and then you have
to click “VGA” button again and again to change the computer image sampling phase.
When the computer image is clearly shown, the adjustment procedure is finished
5) DVI: switch to computer digital signal input
When you have selected a button of the desired input signal on the frontside of the interface, the
indicator above corresponding button will light up. When the indicator above the desired input source
blinks, means there is no input signal.
1.2 Select the Brightness (BRT-, BRT+)
You can select the brightness of the output image brightness.
Click the button BRT-to decrease the brightness, and BRT+ will increase the brightness.
1= lowest brightness, 8 = highest brightness.
1.3 Select GAMMA / Video Chrom (DEF, STD)
DEF select the user-defined image parameters, including GAMMA value, Video Chrom and Hue,
which can be set via a RS232 control port.
STD select a standard image status as GAMMA fixed at GAMMA =1,Video Chrom=32 and
Video Hue=32.
1.3 Select FULL/PART display (FULL, PART)
FULL means that LED will display a full picture.
PART means that LED only display a part of a picture.

18
Maintenance
The operator has to make sure that safety-relating and machine-technical installations are to be
inspected by an expert after every four years in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are to be
inspected by a skilled person once a year.
The following points have to be considered during the inspection:
1. All screws used for installing the device or parts of the device have to be tightly connected and must
not be corroded.
2. There may not be any deformations on housings, fixations and installation spots.
3. Mechanically moving parts like axles, eyes and others may not show any traces of wearing.
4. The electric power supply cables must not show any damages or material fatigue.
The DMT Stand-alone Interface requires almost no maintenance. However, you should keep the unit
clean.
Disconnect the mains power supply, and then wipe the cover with a damp cloth. Do not immerse in
liquid. Do not use alcohol or solvents.
Keep connections clean. Disconnect electric power, and then wipe the connections with a damp cloth.
Make sure connections are thoroughly dry before linking equipment or supplying electric power.
Troubleshooting
This troubleshooting guide is meant to help solve simple problems. If a problem occurs, carry out the steps
below in sequence until a solution is found. Once the unit operates properly, do not carry out following
steps.
1. If the device does not operate properly, unplug the device.
2. Check power from the wall, all cables, the fuse, etc.
3. If all of the above appears to be O.K., plug the unit in again.
4. If nothing happens after 30 seconds, unplug the device.
5. Return the device to your DMT dealer.