Extron electronic Stereo Amplifier 5A RCA User Manual

User’s Guide  
VersaTools™ MDA 5V, 5SV,  
5A RCA  
Mini Distribution Amplifiers  
68-614-01 Rev. B  
Printed in the USA  
08 02  
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Introduction  
The Extron MDA 5 Series of Mini Distribution Amplifiers (MDAs)  
3.  
Install blank panel(s) or other unit(s) to the rack shelf.  
are a family of three video and audio distribution amplifiers. The  
MDA are members of the Extron VersaTools™ line of basic  
distribution amplifiers, switchers, and associated video  
accessories.  
4.  
Insert the shelf into the rack, aligning the holes in the shelf  
with those of the rack.  
5.  
Secure the shelf to the rack using the supplied machine  
screws. This shelf can be mounted in the front or in the rear  
of the rack.  
The MDA 5V distributes buffered composite video, the MDA 5SV  
distributes buffered S-video (luminance (Y) and chrominance  
(C)), and the MDA 5A RCA distributes amplified stereo audio, on  
RCA outputs.  
Only products in the VersaTools line can be mounted to a  
VersaTools shelf. Any 1U rack-mountable Extron product  
can be mounted on the standard shelf.  
The MDAs ship with external, desktop 12V power supplies,  
which accept 100-240VAC input.  
Installation  
D
The MDA 5V, 5SV, and 5A RCA can be mounted on a rack shelf,  
under a desk or tabletop, or on a projector bracket.  
IS  
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FIE  
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ISTR  
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MP  
LIF  
IER  
Rack mounting  
For optional rack mounting, mount the MDA on a VersaTools 19"  
1U Rack Shelf (Extron part #60-190-20) (figure 1) or a standard  
Universal 1U Rack Shelf (Extron part #60-190-01) (figure 2). On  
the standard rack shelf, the MDA mounts in one of four locations  
to the rear of the rack or in one of four locations to the front of the  
rack.  
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DA  
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TIO  
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LIF  
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Figure 2 — Mounting the MDA on the standard shelf  
Furniture or projector mounting  
Furniture mount or projector mount the MDA using the optional  
mounting kit (Part #70-212-01, furniture, or 70-217-01, projector)  
as follows:  
1.  
Attach the mounting brackets to the MDA with the machine  
screws provided (figure 3).  
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IS  
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R
IB  
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IO  
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A
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IS  
VersaTools Rack Shelf  
TR  
IB  
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N
Projector  
Mounting  
Bracket  
A
M
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R
Mounting  
Bolt  
.5A  
15V  
MAX  
PO  
1/4 Rack Width False Front  
W
E
R
MD  
A
IN  
P
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T
2
Face Plate  
1
4
3
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TP  
U
T
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D
IS  
Use 2 mounting holes on  
opposite corners  
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(2) 4-40 x 3/16" screws  
Figure 1 — Rack mounting the MDA 5V, 5SV, or 5A  
RCA on the VersaTools shelf  
Ceiling  
DIS  
TRIB  
U
TION  
A
MP  
LIFIER  
Digital Projector  
1.  
If feet were previously installed on the bottom of the MDA,  
remove them.  
2.  
Mount the MDA on the rack shelf, using two 4-40 x 3/16  
screws in opposite (diagonal) corners to secure the MDA to  
the shelf.  
Projector Mounting  
Under Desk Mounting  
Figure 3 — Desk and projector mounting the  
MDA 5V, 5SV, or 5A RCA  
2
MDA 5V, 5SV, 5A RCA • Installation  
MDA 5V, 5SV, 5A RCA • Installation  
3
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Installation  
End view of power  
supply output cord.  
Captive Screw  
Connector  
2.  
If feet were previously installed on the bottom of the MDA,  
remove them.  
3.  
For furniture mounting, hold the MDA with the attached  
brackets against the underside of the table or other  
furniture. Mark the location of the screw holes of the  
bracket on the mounting surface.  
+12V  
Return  
Figure 4 — Power connector wiring  
Do not tin the stripped power supply leads before  
4.  
5.  
6.  
7.  
8.  
For furniture mounting, drill 3/32” (2 mm) diameter pilot  
holes, 1/4” (6.3 mm) deep in the mounting surface at the  
marked screw locations.  
installing the captive screw connector. Tinned wires are  
not as secure in the captive screw connectors and could  
pull out.  
For furniture mounting, insert #8 wood screws into the four  
pilot holes. Tighten each screw into the mounting surface  
until just less than 1/4” of the screw head protrudes.  
The two power cord wires must be kept separate  
while the power supply is plugged in. Remove  
power before continuing.  
For furniture mounting, align the mounting screws with  
the slots in the brackets and place the MDA against the  
surface, with the screws through the bracket slots.  
To verify the polarity before connection, plug in the power  
supply with no load and check the output with a voltmeter.  
For furniture mounting, slide the receiver slightly forward  
or back, then tighten all four screws to secure the MDA in  
place.  
Front Panel  
4
All Models  
For projector mounting, secure the MDA to a projector  
mount or other surface by inserting the mounting bolt  
through the bracket’s slotted hole.  
DISTRIBUTION AMPLIFIER  
INPUT  
OUTPUTS  
MDA 5V  
Connections and Indicator  
1
Rear Panel  
MDA 5V  
POWER  
12V  
.5A MAX  
3
4
1
2
IN  
Refer to figure 5.  
HIGH Z  
75 Ohm  
Video Input connector — (MDA 5V - composite video and  
MDA 5SV - S-video) Connect an input to this connector.  
1
2
5
LOOP  
2
6
5
3
Video Outputs (1 through 5) connectors — Connect up to  
five video devices to these connectors. (MDA 5V -  
composite video and MDA 5SV - S-video).  
INPUT  
OUTPUTS  
MDA 5SV  
1
POWER  
12V  
.5A MAX  
3
4
Rear Panel  
MDA 5SV  
1
2
IN  
HIGH Z  
75 Ohm  
Power connector— Plug the external 12V power supply  
3
into this 2-pole captive screw connector. The power supply  
is included with the unit. Figure 4 shows how to wire the  
connector.  
LOOP  
5
3
2
5
6
When connecting the power supply, voltage polarity  
is extremely important. Applying power with  
incorrect voltage polarity could damage the power  
supply and the MDA. Identify the power cord  
negative lead by the ridges on the side of the cord.  
CAUTION  
MDA 5A RCA  
5
1
2
3
4
L
Rear Panel  
MDA 5A RCA  
POWER  
12V  
.34A MAX  
R
INPUT  
OUTPUTS  
8
3
7
Figure 5 — MDA 5V front and rear panels  
MDA 5V, 5SV, 5A RCA • Specifications  
4
MDA 5V, 5SV, 5A RCA • Connections  
5
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Specifications  
Power LED — Indicates power is applied.  
4
5
6
Video output  
Number/signal type  
Loop connector — Provides passive loop-through for signal  
MDA 5SV ............................. 6 S-video: 5 buffered for distribution, 1  
High Z / 75 Ohm switch — Select 75-ohm termination on  
passive loop-through  
or off.  
MDA 5V ............................... 6 composite video: 5 buffered for  
distribution, 1 passive loop-through  
Connectors  
MDA 5SV ............................. 6 4-pin mini-DIN  
MDA 5V ............................... 6 BNC female  
Nominal levels................................. Composite video and Y of S-video: 1V p-p  
C of S-video: 0.3V p-p  
High Z — Select this position (up) if you are  
connecting a terminated device to the Loop connector.  
75 Ohm — This position (down) terminates the Input  
connector with 75 ohms of impedance. Select this  
position if you are not using the Loop connector, or if  
you are connecting an unterminated device to the  
Loop connector.  
Minimum/maximum level(s) ....... 0.4V to 2.0V p-p  
Impedance ........................................ 75 ohms  
Return loss........................................ -30dB @ 5 MHz  
DC offset ........................................... 5mV maximum with input at 0 offset  
Audio input (left and right) connectors — Connect  
unbalanced stereo to this RCA connector  
7
8
Audio output (1 through 5, left and right) connectors —  
Connect up to five audio (stereo) devices to these RCA  
connectors.  
Sync  
Standards .......................................... NTSC 3.58, NTSC 4.43, PAL, SECAM  
Audio — MDA 5A RCA  
Gain ................................................... Unity (0dB)  
Specifications  
Frequency response ........................ 20 Hz to 20 kHz, 0.05dB  
THD + Noise .................................... 0.03% @ 1 kHz at nominal level  
S/N .................................................... >90 dB, at rated maximum output drive  
Stereo channel separation .............. >80 dB @ 1 kHz; >60 dB @ 20 kHz  
CMRR ................................................ >75 dB @ 20 Hz to 20 kHz  
Video  
Gain ................................................... Unity  
Bandwidth  
MDA 5SV ............................. 270 MHz (-3dB)  
MDA 5V ............................... 435 MHz (-3dB)  
Differential phase error .................. 0.05º, 0 to 50 MHz  
Differential gain error .................... <0.05%, 0 to 50 MHz  
Audio input — MDA 5A RCA  
Number/signal type ...................... 1 stereo unbalanced  
Connectors ....................................... 2 RCA connectors  
Impedance ........................................ >10 kohms unbalanced, DC coupled  
Nominal levels................................. Compatible with -10dBV (316mV), +4dBu  
(1.23V), 0dBu (0.775V), -20dBV (100mV)  
Video input  
Number/signal type  
MDA 5SV ............................. 1 NTSC/PAL/SECAM S-video  
MDA 5V ............................... 1 NTSC/PAL/SECAM composite video  
Connectors  
Maximum level ............................... +18 dBu unbalanced at 1%THD+N  
MDA 5SV ............................. 1 4-pin mini DIN female  
MDA 5V ............................... 1 BNC female  
Nominal levels................................. Composite video and Y of S-video: 1V p-p  
C of S-video: 0.3V p-p  
Audio output — MDA 5A RCA  
Number/signal type ...................... 5 stereo, unbalanced  
Connectors ....................................... 10 RCA connectors  
Impedance ........................................ 50 ohms unbalanced  
Gain error ......................................... 0.1dB channel to channel  
Nominal levels................................. Compatible with -10dBV (316mV), +4dBu  
(1.23V), 0dBu (0.775V), -20dBV (100mV)  
Minimum/maximum level(s)  
MDA 5SV ............................. Y: 0.4V to 2.0V p-p with no offset  
MDA 5V ............................... 0.4V to 2.0V p-p with no offset  
Impedance ........................................ 75 ohms  
Return loss........................................ <-40dB @ 0 to 10 MHz for MDA 5V  
<-25dB @ 0 to 10 MHz for MDA 5SV  
Maximum level (Hi-Z) ................... >+18dBu, unbalanced at 1%THD+N  
0dBu = 0.775 volts (RMS).  
Maximum DC offset ....................... 1.0V  
6
MDA 5V, 5SV, 5A RCA • Specifications  
MDA 5V, 5SV, 5A RCA • Specifications  
7
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General  
Power ................................................ 100VAC to 240VAC, 50/60 Hz, 5 watts,  
external, auto-switchable; to 12VDC,  
1 A (max.) power supply. Product requires  
0.4 A (max).  
Temperature/humidity ................. Storage -40° to +158°F (-40° to +70°C) / 10%  
to 90%, non-condensing  
Operating +32° to +122°F (0° to +50°C) / 10%  
to 90%, non-condensing  
Rack mount ...................................... Yes, with optional 1U rack shelf, part #60-  
190-01,  
or the VersaTools rack shelf, part #60-190-20  
Enclosure type ................................. Metal  
Enclosure dimensions .................... 1.7" H x 4.3" W x 3.0" D (1U high, quarter  
rack width)  
4.2 cm H x 11.0 cm W x 7.6 cm D  
(Depth excludes connectors and knobs.)  
Product weight ................................ 0.7 lbs (0.3 kg)  
Shipping weight .............................. 3 lbs (1.4 kg)  
Vibration ........................................... ISTA/NSTA 1A in carton (International Safe  
Transit Association)  
Listings.............................................. UL, CUL  
Compliances .................................... CE, FCC Class A, VCCI, AS/NZS, ICES  
MTBF ................................................. 30,000 hours  
Warranty........................................... 3 years parts and labor  
Specifications are subject to change without notice.  
FCC Class A Notice  
Note: 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 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 the  
instruction manual, 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.  
Note: This unit was tested with shielded cables on the peripheral devices. Shielded  
cables must be used with the unit to ensure compliance.  
Extron Electronics, USA  
1230 South Lewis Street  
Anaheim, CA 92805  
USA  
Extron Electronics, Europe  
Beeldschermweg 6C  
3821 AH Amersfoort  
The Netherlands  
Extron Electronics, Asia  
135 Joo Seng Road, #04-01  
PM Industrial Building  
Singapore 368363  
Extron Electronics, Japan  
Daisan DMJ Building 6F  
3-9-1 Kudan Minami  
Chiyoda-ku, Tokyo 102-0074 Japan  
+81.3.3511.7655  
714.491.1500  
+31.33.453.4040  
+65.6383.4400  
Fax 714.491.1517  
Fax +31.33.453.4050  
Fax +65.6383.4664  
Fax +81.3.3511.7656  
© 2002 Extron Electronics. All rights reserved.  
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