User’s Manual
VersaTools® MDA 3 Series
Video and Audio Mini Video Distribution Amplifiers
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
Kyodo Building
16 Ichibancho
Chiyoda-ku, Tokyo 102-0082 Japan
+81.3.3511.7655
68-607-01 Rev. D
06 06
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
© 2006 Extron Electronics. All rights reserved.
Introduction ................................................................................ 1
Installation................................................................................... 2
Rack mounting ............................................................................ 2
Back of the rack mounting ........................................................ 4
Furniture or projector mounting............................................. 6
Connections, Controls, and Indicator ............................ 7
S-video (MDA 3SV, MDA 3SVA, MDA 3SV Dual) ..................... 7
Composite video (MDA 3V, MDA 3AV, MDA 3V Dual) ........... 8
Audio on captive screw connectors
(MDA 3AV, MDA 3SVA, MDA 3A) ............................................ 8
Audio on RCA connectors (MDA 3A RCA) ............................ 10
Power (all models) .................................................................. 10
Specifications ........................................................................... 12
All trademarks mentioned in this manual are the properties of their respective owners.
68-607-01 Rev. D
06 06
VersaTools® MDA 3 Series • Table of Contents
i
Table of Contents, cont’d
Introduction
The Extron MDA 3 Series of Mini Distribution Amplifiers
(MDAs) are a family of eight one-input, three-output, video and
audio distribution amplifiers. The MDA series distribution
amplifiers (DAs) split one composite video or S-video input
and/or audio input for output to multiple destinations with no
loss of signal quality. The MDA are members of the Extron
VersaTools® line of basic distribution amplifiers, switchers, and
associated video accessories.
The MDAs distribute composite video, S-video (luminance (Y)
and chrominance (C)), and/or balanced or unbalanced audio on
captive screw connectors, or unbalanced audio on RCA
connectors, in the following combinations:
screw connectors)
Composite video
Audio (captive
conneAcutdorios)(RCA
S-video
Distribution
Amplifier
Part #
MDA 3SV
MDA 3SVA
60-444-01
60-444-20
MDA 3SV Dual 60-444-10
2
MDA 3V
60-439-01
60-439-20
60-439-10
60-440-01
60-440-30
MDA 3AV
MDA 3V Dual
MDA 3A
2
MDA 3A RCA
2 = Two separate DAs.
The MDAs ship with external desktop 12 V power supplies that
accept 100 to 240 VAC, 50 Hz or 60 Hz input.
VersaTools® MDA 3 Series • Table of Contents
ii
VersaTools®MDA3Series•Introduction
1
VersaTools® MDA 3 Series, cont’d
Installation
The MDA 3 Series mini distribution amplifiers (DAs) can be
mounted on a rack shelf, to a rack without a shelf, under a desk
or tabletop, or on a projector bracket.
Rack mounting
For optional rack mounting, mount the MDA on any of the
following rack shelves:
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RSF 123 VersaTools® rack shelf kit (part #60-190-20)
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•
VersaTools Rack Shelf
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(figure 1)
1/4 Rack Width False Front
Face Plate
•
•
•
•
RSB 123 VersaTools rack shelf (part #60-604-20)
RSU 126 6" deep universal rack shelf kit (part #60-190-10)
RSB 126 6" deep basic rack shelf (part #60-604-10)
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IS
T
RSU 129 1U universal rack shelf kit (part #60-190-01)
(figure 2)
Use 2 mounting holes on
opposite corners.
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(2) 4-40 x 3/16" Screws
•
RSB 129 1U basic rack shelf (part #60-604-01)
Figure 1 — Rack mounting the MDAs on a
VersaTools rack shelf
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.
1.
If feet were previously installed on the bottom of the
MDA, remove them.
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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.
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3.
Install blank panel(s) or other unit(s) to the rack shelf.
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.
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Figure 2 — MDAs mounted on a standard rack
shelf
VersaTools® MDA 3 Series • Installation
2
VersaTools® MDA 3 Series • Installation
3
VersaTools® MDA 3 Series, cont’d
Back of the rack mounting
The MDA can be mounted to the rear of a rack using the Extron
MBB 100 VersaTools® back of the rack mounting kit
(part #70-367-01) (figure 3). The kit allows the product to be
vertically mounted to the front or rear rack supports and facing
either towards the front or the rear of the rack.
Rear
Front
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1
U
2
3
DISTRIB
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Figure 3 — Attaching the back of the rack kit
1.
2.
3.
Remove feet from the bottom of the MDA if they are
installed.
Remove two screws from one side of the unit. Retain the
screws for possible later reassembly without the bracket.
Figure 4 — Typical back of the rack installations
Attach one bracket to the side of the unit using the longer
screws included in the kit.
4.
5.
Repeat steps 2 and 3 on the other side of the unit.
Mount the unit to the rack using the two included rack
screws (figure 4). The MDA can be vertically mounted
facing in either direction.
Only VersaTools products and most IP Link products
can be mounted using the back of the rack mounting kit.
VersaTools® MDA 3 Series • Installation
4
VersaTools® MDA3Series •Connections andControls
5
VersaTools® MDA 3 Series, cont’d
8.
For projector mounting, secure the MDA to a projector
mount or other surface by inserting the mounting bolt
through the bracket’s slotted hole.
Furniture or projector mounting
Furniture mount or projector mount the MDA using the
optional Extron MBU 123 VersaTools® under desk mounting kit
(part #70-212-01); or VersaTools® PMK 100 mini projector
mounting kit (part #70-217-01) as follows:
Connections, Controls, and Indicator
See figure 6, figure 7, and figure 11 to make the following connections. The
figures show all of the combinations of connectors that you may encounter
with your MDA.
1.
Attach the mounting brackets to the MDA with the
machine screws provided (figure 5).
S-video (MDA 3SV, MDA 3SVA, MDA 3SV Dual)
Input connector (s) — Connect an S-video input to this 4-pin
mini DIN connector (figure 6 and figure 7). On the Dual model
(figure 7), Input A and Input B are completely separate inputs to
two separate distribution amplifiers.
1
Mounting
Bolt
Projector
Mounting
Bracket
2
1
Projector
MDA 3SVA,
Rear Panel
INPUT
OUTPUTS
MDA 3SVA
D
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B
1
2
U
3
T
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POWER
12V
.5A MAX
N
A
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P
L
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F
I
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R
INPUT
OUTPUTS
R
BAL
L
R
L
1
R
L
2
L
3
R
1
2
3
UNBAL
Under Desk Mounting
Projector Mounting
Figure 5 — Desk and projector mounting the MDAs
6
7
10
5
4
3
MDA 3AV,
Rear Panel
2.
3.
If feet were previously installed on the bottom of the
MDA, remove them.
MDA 3AV
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.
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1
2
3
POWER
12V
.34A MAX
INPUT
OUTPUTS
BAL
L
R
L
1
R
L
2
R
L
3
R
4.
5.
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.
1
2
3
UNBAL
6
7
10
5
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.
Figure 6 — MDA 3 Series front and rear panels
Out connector or Outputs (1 through 3) connectors — Connect
up to three S-video devices to these 4-pin mini DIN connectors.
On the Dual model, the A output signals are identical to the A
input, and the B output signals are identical to the B input.
2
6.
7.
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.
For furniture mounting, slide the MDA slightly forward or
back, then tighten all four screws to secure the MDA in place.
®
VersaTools® MDA3Series •Connections andControls
7
6
VersaTools MDA 3 Series • Connections and Controls
VersaTools® MDA 3 Series, cont’d
Tip
Ring
Sleeve (s)
Tip
Tip
Sleeve
2
1
MDA 3SV Dual,
Rear Panel
Tip
Sleeve
Ring
MDA 3SV
DUAL
A
0.2” (5 mm) max.
Do not tin the wires!
Balanced Stereo Input
(high impedance)
Unbalanced Stereo Input
(high impedance)
1
2
3
3
POWER
12V
.5A MAX
Figure 8 — Captive screw input connector wiring
B
When making connections for the MDA from existing
audio cables, see figure 9. A mono audio connector
consists of the tip and sleeve. A stereo audio connector
consists of the tip, ring and sleeve. The ring, tip, and
sleeve wires are also shown on the captive screw audio
connector diagrams, figure 8 and figure 10.
2
1
INPUT
OUTPUTS
10
1
2
4
3
MDA 3V Dual,
Rear Panel
Tip
Sleeve
Tip (Left)
Sleeve (Gnd)
MDA 3V
DUAL
A
B
1
1
2
3
Ring (Right)
Tip (Left)
POWER
12V
.5A MAX
Tip (Signal)
Sleeve (Gnd)
Sleeve (Gnd)
Unbalanced Stereo
2
3
INPUT
Unbalanced Mono
OUTPUTS
Figure 9 — Phono audio connectors
4
10
3
Audio Outputs (1 through 3) connectors — Connect up to three
balanced or unbalanced audio devices to these 3.5 mm, 5-pole
captive screw connectors. Connect audio devices, such as an
audio amplifier or powered speakers. See figure 10 to properly
wire an output connector.
6
Figure 7 — MDA 3SV Dual and MDA 3V Dual rear
panels
Composite video (MDA 3V, MDA 3AV, MDA 3V Dual)
Tip
Tip
Ring
In connector or Input connector — Connect a composite video
input to this BNC connector. On the Dual model (figure 7),
Input A and Input B are completely separate inputs to two
separate distribution amplifiers.
3
Left
Left
NO GROUND HERE.
Sleeve(s)
Tip
Tip
Ring
Right
Right
NO GROUND HERE.
0.2” (5 mm) max.
Do not tin the wires!
Unbalanced Stereo Output
Balanced Stereo Output
Out connector or Outputs (1 through 3) connectors — Connect
up to three composite video devices to these BNC connectors.
On the Dual model (figure 7), the A output signals are identical
to the A input, and the B output signals are identical to the B
input.
4
Figure 10 — Captive screw connector wiring for
audio output
Connect the sleeve to ground (Gnd). Connecting
the sleeve to a negative (-) terminal will damage the
audio output circuits.
CAUTION
Audio on captive screw connectors (MDA 3AV,
MDA 3SVA, MDA 3A)
Audio Input connector — Connect a balanced or unbalanced
audio input to this 3.5 mm, 5-pole captive screw connector.
Connectors are included, but you must supply the audio cable.
See figure 8 to wire a connector for the appropriate input type
and impedance level. High impedance is generally over 800 ohms.
5
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VersaTools® MDA 3 Series • Connections and Controls
8
VersaTools MDA 3 Series • Connections and Controls
9
VersaTools® MDA 3 Series, cont’d
Bal(anced)/Unbal(anced) DIP switches — For each balanced
7
audio output, set the associated DIP switch to the
Balanced (up) position. For each unbalanced audio
output, set the associated DIP switch to the
Unbalanced (down) position.
Smooth
BAL
Ridges
A
A
SECTION A–A
The balanced or unbalanced nature of the audio
output is determined by the output connector
wiring, not the audio input. Each output can be
balanced or unbalanced independently of the other
two outputs.
1 2 3
UNBAL
Power Supply
Output Cord
Tie Wrap
0.3” (7 mm) MAX
Audio on RCA connectors (MDA 3A RCA)
Orange Captive Screw
Connector
9
8
MDA 3A RCA,
Rear Panel
Figure 12 — Power connector wiring
MDA 3A RCA
1
2
3
The length of the exposed (stripped) copper wires is
important. The ideal length is 0.3" (7 mm).
Longer bare wires can short together. Shorter wires
are not as secure in the captive screw connectors
and could be pulled out.
L
CAUTION
POWER
12V
.34A MAX
R
INPUT
OUTPUTS
Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
9
10
8
Figure 11 — MDA 3A RCA rear panel
Your MDA may have shipped with a blue captive
screw connector. This blue connector can be plugged
into either a blue or an orange power receptacle.
Audio Input connectors — Connect an unbalanced stereo audio
source to these L(eft) and R(ight) RCA connectors.
8
9
The ideal length of exposed (stripped) copper wire
for the blue connector is 0.2" (5 mm).
Audio Outputs (1 through 3) connectors — Connect up to three
stereo audio devices to these L(eft) and R(ight) RCA connectors.
The blue connector does not have the extended tail or the
included tie-wrap.
Power (all models)
Do not tin the stripped power supply leads before
installing the captive screw connector. Tinned wires are
not as secure in the captive screw connectors and could
be pulled out.
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
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.
Power connector — Plug the external 12 VDC power supply
into this 2-pole captive screw connector. The power supply is
included with the unit. Figure 12 shows how to wire the
connector.
10
The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
Power supply voltage polarity is critical. Incorrect
voltage polarity can damage the power supply and
the MDA. Identify the power cord negative lead by
the ridges on the side of the cord (figure 12).
CAUTION
As an alternative, an Extron P/S 100 Universal 12 VDC Power
Supply, part #60-357-01, can power multiple MDAs or other
Extron 12 VDC devices using only one AC power connector.
®
®
10
VersaTools MDA 3 Series • Specifications
VersaToolsMDA3Series•Specifications
11
VersaTools® MDA 3 Series, cont’d
Power LED (figure 13) — When lit, this LED indicates power is
applied to the MDA.
DC offset (max. allowable) ......... 5.0 V
Input coupling.............................. AC
11
11
Front Panel, all MDA Models
Video output
Number/signal type
MDA 3SV/3SVA.............. 3 buffered S-video
MDA 3SV Dual ................ 2 x 3 buffered S-video
MDA 3V/3AV .................. 3 buffered composite video
MDA 3V Dual .................. 2 x 3 buffered composite video
Connectors
DISTRIBUTION AMPLIFIER
Figure 13 — MDA 3 Series front panel (all models)
MDA 3SV/3SVA.............. (3) 4-pin mini DIN female
MDA 3SV Dual ................ (6) 4-pin mini DIN female
MDA 3V/3AV .................. 3 BNC female
MDA 3V Dual .................. 6 BNC female
Specifications
Video
Nominal level ............................... 1 Vp-p for Y of S-video and for composite
video
Gain ............................................... Unity
0.3 Vp-p for C of S-video
Bandwidth .................................... 100 MHz (-3 dB)
Minimum/maximum levels ...... 0.4 V to 2.0 Vp-p, follows input
Impedance .................................... 75 ohms
Video input
Number/signal type
Return loss .................................... <-30 dB @ 5 MHz
DC offset ....................................... 50 mV with input at 0 offset
MDA 3SV/3SVA
1 S-video
Sync
MDA 3SV Dual ................ 2 S-video
MDA 3V/3AV ................... 1 composite video
MDA 3V Dual .................. 2 composite video
Connectors
Standards ...................................... NTSC 3.58, NTSC 4.43, PAL, SECAM
Audio — MDA 3AV, MDA 3SVA, MDA 3A/3A RCA
Gain
MDA 3SV/3SVA
DIP switch set to match output type
Unity (0 dB)
DIP switch not matched to output type
(1) 4-pin mini DIN female
MDA 3SV Dual ................ (2) 4-pin mini DIN female
MDA 3V/3AV ................... 1 BNC female
MDA 3V Dual .................. 2 BNC female
Output Wiring
DIP Switch
Setting
Unbalanced Balanced
Nominal level ............................... 1 Vp-p for Y of S-video and for composite
Balanced
Unbalanced
0 dB
+6 dB
-6 dB
0 dB
video
0.3 Vp-p for C of S-video
Minimum/maximum levels ...... 0.4 V to 2.0 Vp-p for composite video or Y
of S-video with no offset
Impedance .................................... 75 ohms
Return loss
Frequency response ..................... 20 Hz to 20 kHz, 0.05 dB
THD + Noise ................................ 0.03% @ 1 kHz at nominal level
S/N
MDA 3A ............................ >90 dB, unbalanced, at maximum output
All other models w/audio >90 dB, balanced at maximum output
Stereo channel separation .......... >80 dB @ 1 kHz; >60 dB @ 20 kHz
CMRR ............................................ >75 dB @ 20 Hz to 20 kHz
MDA 3SV/3SVA
MDA 3SV Dual ................ <-25 dBB @ 0 to 10 MHz
All other models .............. <-27 dB @ 5 MHz
VersaTools® MDA 3 Series • Specifications
®
12
VersaToolsMDA3Series•Specifications
13
VersaTools® MDA 3 Series, cont’d
Maximum level (Hi-Z)
MDA 3A ............................ +15 dBV, unbalanced, at 1%THD+N
All other models w/audio >+24 dBu, balanced at 1%THD+N
Maximum level (600 ohm)
Audio input — MDA 3AV, MDA 3SVA, MDA 3A/3A RCA,
MDA 5A RCA
Number/signal type
MDA 3A RCA
MDA 3A ............................ >+14 dBm, unbalanced, at 1%THD+N
1 stereo unbalanced
All other models w/audio >+15 dBm, balanced or unbalanced, at
1%THD+N
MDA 3AV, MDA 3SVA, MDA 3A
1 stereo balanced/unbalanced
Connectors
General
MDA 3A RCA
External power supply ............... 100 VAC to 240 VAC, 50/60 Hz, 5 watts,
external, autoswitchable; to 12 VDC,
2 RCA connectors
MDA 3AV, MDA 3SVA, MDA 3A
1 A (max.), regulated
(1) 3.5 mm captive screw connector, 5 pole
Power input requirements
Impedance
MDA 3V/3SV ................... 12 VDC, 0.1 A (max.)
MDA 3AV/3SVA............. 12 VDC, 0.3 A (max.)
All other models .............. 12 VDC, 0.2 A (max.)
MDA 3A RCA
>10k ohms unbalanced, DC coupled
MDA 3AV, MDA 3SVA, MDA 3A
>50k ohms unbalanced, >25k ohms
balanced, DC coupled
Temperature/humidity .............. Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Nominal level ............................... +4 dBu (1.23V), 0 dBu (0.775 V), -10 dBV
(316 mV), -20 dBV (100 mV) compatible
Rack mount ................................... Yes, with optional 1U rack shelf, part
#60-190-01, or 60-604-01;
Maximum level
MDA 3A ............................ +17 dBu (unbalanced) at 1%THD+N
All other models w/audio +24 dBu (balanced) at 1%THD+N
or the VersaTools® rack shelf, part
#60-190-20, or 60-604-20
Enclosure type .............................. Metal
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
Enclosure dimensions ................. 1.7" H x 4.3" W x 3.0" D (1U high, quarter
rack wide)
Audio output — MDA 3AV, MDA 3SVA, MDA 3A/3A RCA
Number/signal type
4.2 cm H x 11.0 cm W x 7.6 cm D
(Depth excludes connectors and knobs.)
MDA 3A RCA .................. 3 stereo, unbalanced
MDA 3AV, MDA 3SVA, MDA 3A
3 stereo, balanced/unbalanced
Product weight
MDA 3V, MDA 3SVA ..... 0.4 lbs (0.2 kg)
MDA 3V Dual .................. 0.7 lbs (0.3 kg)
MDA 3AV ......................... 0.6 lbs (0.3 kg)
MDA 3SV ........................... 0.4 lbs (0.2 kg)
MDA 3SV Dual, MDA 3A . 0.5 lbs (0.2 kg)
MDA 3A RCA .................. 0.4 lbs (0.2 kg)
Shipping weight
Connectors
MDA 3A RCA .................. 6 RCA connectors
MDA 3AV, MDA 3SVA, MDA 3A
(3) 3.5 mm captive screw connectors, 5
pole
Impedance
MDA 3V, MDA 3V Dual. 3 lbs (2 kg)
MDA 3AV ......................... 3 lbs (2 kg)
MDA 3SV, MDA 3SV Dual 2 lbs (1 kg)
MDA 3SVA ....................... 2 lbs (1 kg)
MDA 3A RCA ................... 2 lbs (1 kg)
MDA 3A RCA
50 ohms unbalanced
MDA 3AV, MDA 3SVA, MDA 3A
50 ohms unbalanced, 100 ohms balanced
Gain error...................................... 0.1 dB channel to channel
®
®
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VersaTools MDA 3 Series • Specifications
VersaToolsMDA3Series•Specifications
15
VersaTools® MDA 3 Series, cont’d
Vibration ....................................... ISTA 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
All nominal levels are at 10%.
Specifications are subject to change without notice.
VersaTools® MDA 3 Series • Specifications
16
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