Altinex Stereo Amplifier DA1804NT User Manual

DISTRIBUTION AMPLIFIERS  
MANUAL PART NUMBER: 400-0004-004  
DA1804NT  
1-IN, 4-OUT VIDEO DISTRIBUTION  
AMPLIFIER  
USER’S GUIDE  
 
DISTRIBUTION AMPLIFIERS  
1.5 FCC NOTICE  
PRECAUTIONS / SAFETY WARNINGS  
1
·
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.  
Please read this manual carefully before using your  
DA1804NT and keep it handy for future reference.  
These safety instructions are to ensure the long life  
of your DA1804NT and to prevent fire and shock  
hazards. Please read them carefully and heed all  
warnings.  
1.1 GENERAL  
·
This equipment has been tested and found to  
comply with the limits for a Class A digital  
device, pursuant to Part 15 of the FCC Rules.  
These limits are designed to provide reasonable  
protection against harmful interference when the  
·
·
Qualified ALTINEX service personnel or its  
authorized representatives must perform all  
service.  
Connect the unit to a properly rated supply  
circuit.  
equipment is operated in  
a
commercial  
environment. This equipment generates, uses,  
and can radiate radio frequency energy and if  
not installed and used in accordance with  
instructions found herein, may cause harmful  
interference to radio communications. Operation  
of this equipment in a residential area is likely to  
cause harmful interference in which case the  
user will be required to correct the interference  
at his own expense.  
1.2 HANDLING  
·
Handle the DA1804NT carefully. Dropping or  
jarring can damage internal components.  
·
For best results, place the DA1804NT on a flat,  
level surface in a dry area away from dust and  
moisture.  
·
To prevent fire or shock, do not expose this unit  
to water or moisture. Do not place the  
DA1804NT in direct sunlight, near heaters, or  
heat-radiating appliances, or near any liquid.  
Exposure to direct sunlight, smoke, or steam can  
harm internal components.  
·
Any changes or modifications to the unit not  
expressly approved by ALTINEX, Inc. could void  
the user’s authority to operate the equipment.  
·
·
Do not pull the cables that are attached to the  
DA1804NT.  
To turn off the main power, be sure to remove  
the cable from the power outlet. The power  
outlet socket should be installed as near to the  
equipment as possible and should be easily  
accessible.  
1.4 CLEANING  
·
Clean only the connector area with a dry cloth.  
Never use strong detergents or solvents such as  
alcohol or thinner. Do not use a wet cloth or  
water to clean the unit. Do not clean or touch  
any component or PCB.  
400-0004-004  
2
 
DISTRIBUTION AMPLIFIERS  
ABOUT YOUR DA1804NT  
2
TECHNICAL SPECIFICATIONS  
3
Specifications are subject to change.  
See www.altinex.com for up-to-date information.  
DA1804NT  
1-In, 4-Out Video Distribution Amplifier  
FEATURES/DESCRIPTION  
GENERAL  
DA1804NT  
The DA1804NT is a 1-In, 4-Out Distribution  
Amplifier designed to allow the connection of a  
single video source to as many as four display or  
recording devices.  
Inputs  
BNC female (1)  
BNC female (4)  
Outputs  
NTSC, PAL, SECAM,  
High Resolution  
Monochrome  
The DA1804NT can pass NTSC, PAL, and SECAM  
composite video signals. It can also pass  
high-resolution monochrome computer video, such  
as grayscale signals used in medical imaging. The  
DA1804NT can handle video signals with levels up  
to 1.5 Vp-p.  
Compatibility  
Computer Video  
Table 1. DA1804NT General  
MECHANICAL  
Material  
DA1804NT  
Gray 0.1” Al  
Lexan  
State-of-the-art technology gives the DA1804NT a  
bandwidth of 350 MHz with a very flat frequency  
response up to 200MHz. It also offers a differential  
gain of 0.15% and a differential phase of 0.15  
degrees.  
Top Label  
Height (inches)  
Width (inches)  
Depth (inches)  
Weight (pounds)  
T° Operating  
T° Maximum  
Humidity  
1.0 in (25 mm)  
4.6 in (117 mm)  
3.5 in (89 mm)  
0.4 lb (0.18 kg)  
10°C-35°C  
The DA1804NT Distribution Amplifier has a pre-set  
gain of 0 dB; each output is completely  
independent and can withstand shorts to ground.  
Extremely rugged and compact, the DA1804NT fits  
easily into tight spots. Using high-quality 75 ohm  
coaxial cable, it can drive an NTSC signal 400 ft  
(122 m) or more.  
50°C  
90% non-condensing  
40,000 hrs  
MTBF (calculations)  
Table 2. DA1804NT Mechanical  
ELECTRICAL  
DA1804NT  
Input Video Signal  
Analog Signal  
1.5 Vp-p max.  
75 ohm  
Impedance  
Output Video Signal  
Analog Signal  
0 dB +/- 0.5 dB  
75 ohm  
Impedance  
Frequency Compatibility  
Video Bandwidth  
Coupling  
350 MHz @ -3 dB  
DC  
Power  
External Adapter (included)  
Power Consumption  
9 VDC 500 mA  
0.4 W max.  
Table 3. DA1804NT Electrical  
400-0004-004  
3
 
DISTRIBUTION AMPLIFIERS  
PRODUCT DESCRIPTION  
4
POWER/  
SIGNAL LED  
+9VDC  
INPUT  
VIDEO  
INPUT  
4 VIDEO  
OUTPUTS  
FEMALE BNC  
FEMALE BNC  
+9VDC  
INPUT  
POWER/  
SIGNAL LED  
VIDEO  
INPUT  
4 VIDEO  
OUTPUTS  
400-0004-004  
4
 
DISTRIBUTION AMPLIFIERS  
APPLICATION DIAGRAMS  
DIAGRAM 1: TYPICAL SETUP  
5
DA1804NT  
DIAGRAM 2: INTERNAL VIEW  
OUTPUT  
BNCs  
OUT 1  
OUT 2  
OUT 3  
OUT 4  
INPUT  
BNC  
SIGNAL  
DETECT  
POWER  
9VDC,500mA  
POWER  
P.S.  
400-0004-004  
5
 
DISTRIBUTION AMPLIFIERS  
INSTALLING YOUR DA1804NT  
6
TROUBLESHOOTING GUIDE  
8
Step 1. Connect one end of the power adapter  
cable to the DA1804NT and the other to  
the power outlet. The Power/Signal  
Present LED on the side panel should be  
on and red indicating the unit is  
operational.  
We have carefully tested and found no problems in  
the supplied DA1804NT; however, we would like to  
offer suggestions for the following:  
8.1 POWER LED IS NOT ON  
The Power/Signal Present LED should be on  
and red when power is applied with no input  
signal.  
Step 2. Connect a coaxial cable from the video  
source (VCR, Document Camera, etc.) to  
the input connector of the DA1804NT.  
Cause 1: There is no AC power.  
Solution: Only use the external adapter  
supplied with the DA1804NT. Verify  
the adapter is plugged into a  
working AC outlet and that the outlet  
has power.  
If the video source providing a video  
image, the Power/Signal Present LED on  
the DA1804NT should turn from red to  
green indicating a valid signal is present.  
Step 3. Connect the output connectors of the  
DA1804NT to the display devices  
(monitors or projectors) using coaxial  
cables.  
Cause 2: The adapter is not plugged into  
the DA1804NT.  
Solution: Verify the DC power plug coming  
from the AC adapter is plugged all  
the way into the DA1804NT.  
Step 4. The images on the outputs of the  
DA1804NT should be equivalent to the  
input source signal.  
Cause 3: The FPI100HR has a problem.  
Step 5. Installation is complete. There are no  
Solution: If there is AC power to the adapter  
and the LED still does not turn on,  
the DA1804NT or the power adapter  
may require service. Please call  
ALTINEX at (714) 990-2300.  
further connections or settings required.  
OPERATION  
7
The DA1804NT requires no adjustments for  
performance. Once set up, the DA1804NT will work  
trouble-free without user intervention as long as  
cables are attached properly and other technical  
specifications are followed.  
8.2 LED IS NOT GREEN  
The Power/Signal Present LED should be on  
and red when power is applied, but then turn  
green when receiving a video signal.  
Cause 1: There is no power.  
Solution: If the LED is on and red indicating  
power is present, reconnect the  
computer's video output. If the LED  
is still not green, see Cause 2.  
Cause 2: There is no sync signal.  
Solution: Verify the computer output is  
operating correctly by connecting it  
directly to the local monitor. If the  
display is good, call ALTINEX at  
(714) 990-2300.  
400-0004-004  
6
 
DISTRIBUTION AMPLIFIERS  
8.3 NO REMOTE IMAGE  
ALTINEX POLICIES  
9
Cause 1: The source has a problem.  
9.1 LIMITED WARRANTY/RETURN POLICIES  
Solution: Check the image on the local  
monitor and verify the quality is  
good. If the local image is good, see  
Cause 2.  
Please see the ALTINEX website at  
www.altinex.com for details on warranty and  
return policies.  
9.2 CONTACT INFORMATION  
ALTINEX, Inc.  
Cause 2: Cable connections are incorrect.  
Solution: Make sure that cables are  
connected properly. Also, make sure  
that the continuity and wiring are  
good. If there is still no image, call  
ALTINEX at (714) 990-2300.  
592 Apollo Street  
Brea, CA 92821 USA  
TEL: 714 990-2300  
TOLL FREE: 1-800-ALTINEX  
8.4 REMOTE IMAGE QUALITY IS POOR  
Cause 1: The source has a problem.  
Solution: Check the image on the local  
monitor and verify the quality is  
good. If the local image is good, see  
Cause 2.  
Cause 2 Poor signal transmission.  
Solution: Check the cables for continuity and  
make sure that connections are  
wired properly to verify that there is  
good signal transmission. We  
recommend ALTINEX-made cables  
for best results. If the image is still  
not correct, call ALTINEX at  
(714) 990-2300.  
400-0004-004  
7
 

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