Setup Guide — MDA 3V Series, cont’d
Setup Guide — MDA 3 Series
This card provides quick start instructions for an experienced
installer to set up and operate Extron MDA 3 Series
S-video, composite video, and audio distribution
amplifiers. See the table below right to identify the
attributes of each model covered in this guide.
Output connectors (MDA 3SV A, MDA 3AV, and MDA 3A) — Connect up to three
balanced or unbalanced stereo audio or mono audio devices to the Output 5-pole
captive screw connectors. Wire the connectors as shown below.
f
C
For unbalanced audio output, connect the sleeve(s) to the ground contact.
DO NOT connect the sleeve(s) to the negative (-) contacts).
Installation
Step 1 — Mounting
Tip
Tip
Ring
NO GROUND HERE.
Sleeve(s)
Sleeve (s)
Tip
Tip
Turn off or disconnect all equipment power sources and
mount the MDA as required.
NO GROUND HERE.
Ring
Do not tin the wires!
Unbalanced Stereo Output
Balanced Stereo Output
Distribution
Amplifier
Step 2 — Connections
BAL
Bal(anced)/Unbal(anced) DIP switches (Audio models) — For each
balanced 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.
MDA 3SV
g
h
The drawings below may show features not on your
MDA, depending on your model.
N
MDA 3SVA
MDA 3V
The MDA 3V Dual has two separate DAs in a single
enclosure.
MDA 3AV
1
2
3
UNBAL
MDA 3V Dual
MDA 3A
2
Each output can be balanced or unbalanced independently of the other two
outputs.
Input connector (MDA 3SV models) —
Connect an S-video video source
to the Input 4-pin mini DIN connector.
a
2 = Two separate DAs.
Power connector — Connect an IEC power cord
between the included 12 V power supply and a
100 VAC/240 VAC, 50-60 Hz source. Connect the power
supply to the MDA as shown at right.
Smooth
Ridges
Output connectors (MDA 3SV models) — Connect up to three S-video displays to
these 4-pin mini DIN Output connectors.
Captive
Screw
Connector
b
A
A
2
C
1
Always use a power supply supplied and or specified
by Extron. Use of an unauthorized power supply
voids all regulatory compliance certification and may
cause damage to the supply and the end product.
Unless otherwise stated, the AC/DC adapters are
not suitable for use in air handling spaces or in
wall cavities. The installation must always be in accordance with the applicable
provisions of National Electrical Code ANSI/NFPA 70, article 75 and the
Canadian Electrical Code part 1, section 16. The power supply shall not be
permanently fixed to building structure or similar structure..
4
3
Tie
Wrap
MDA 3SVA,
Rear Panel
MDA 3AV,
Rear Panel
3"
16 (5 mm)
Max.
INPUT
OUTPUTS
MDA 3SVA
MDA 3AV
SECTION A–A
Power Supply
Output Cord
O
U
T
I
N
1
R
1
2
2
3
R
3
POWER
12V
POWER
12V
.34A MAX
INPUT
INPUT
OUTPUTS
OUTPUTS
BAL
BAL
.5A MAX
L
R
L
1
L
2
R
L
3
L
R
L
1
R
L
2
R
L
3
R
1
2
3
1
2
3
UNBAL
UNBAL
6
7
8
5
6
7
8
5
Operation
In connector (MDA 3V and 3AV models) — Connect a composite video
source to the BNC connector.
After all devices are powered up, the system is fully operational. If any problems are
encountered, verify that the cables are routed and connected properly. If your problems
persist, call the Extron S3 Sales & Technical Support Hotline that is closest to you, at the
number shown below.
c
Out connectors (MDA 3V and 3AV models) — Connect up to three
composite video displays to these BNC connectors.
d
e
Input connector (MDA 3SV A, MDA 3AV, and MDA 3A) — Connect a
balanced or unbalanced stereo audio or mono audio device to the Input
5-pole captive screw connector. Wire the connectors as shown below:
Tip
Sleeve
Tip
Ring
Sleeve (s)
Tip
Tip
Sleeve
Ring
Do not tin the wires!
Balanced Stereo Input
Unbalanced Stereo Input
(high impedance)
(high impedance)
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