Extron Electronics RGB 472xi_474xi_478xi_478 Mxi User Guide - Manual (Page 11)

RGB 470xi xi xi xi xi Series • Operation
Installation, cont’d
RGB 470xi xi xi xi xi Series • Operation
Apply power to the interface. The power/signal LEDs on the
interface will light red (initially) to indicate that the interface is
receiving power.
If the LED does not light, check the wiring at both the interface
and the power supply, and ensure that the power supply is
connected to a power source.
If the image does not appear or there is no sound
1. Make sure that all the devices are powered on.
2. Ensure that the connectors are wired correctly at both ends
of the cables. Audio cables must be wired for an
unbalanced stereo input signal and for a balanced or an
unbalanced stereo output signal.
3. If input is from a laptop computer and no picture appears,
use a laptop breakout cable for the input connection.
Check the computer’s user’s guide or contact Extron to
determine if special commands are required to output
video to the external video port. Also, many laptops’
screens shut off after the external video port is activated.
4. Call the Extron S 3 Sales and Technical Support Hotline if
the image still does not appear or there is no sound.
If the image is not displayed correctly
1. If the picture is too bright or dark, or if the edges of the
image seem to exceed their boundaries, or if thin lines and
sharp edges look thick and fuzzy, change the gain setting.
2. If the picture appears and is stable, but it has ghosting or
blooming, verify that the video input is properly
terminated. If the problem is not resolved by changing the
termination, try using a different input cable. Poor quality
or damaged cable can cause ghosting or blooming.
3. If the picture still is not displayed correctly, call the Extron
S3 Sales and Technical Support Hotline.
If the interface does not respond to horizontal shifting
If the picture does not move on screen when the horizontal shift
control knob is rotated, DDSP is in use. Set the DDSP DIP
switch to Off.
Once the system has been cabled and tested, the interface can be
installed in a wall, furniture, a floor box, or Euro Channel. Refer
to the RGB 400xi Series Installation Guide that addresses your
specific requirements.
If optional AAP devices are being installed (RGB 478xi and
RGB 478 Mxi only), see the following section “Mounting the
optional AAP or MAAP devices.”
+ or –
– or +
9-24VDC
Power
2-8
may be overcompensated. If the edges of the image seem
to exceed their boundaries, or if thin lines and sharp
edges look thick and fuzzy, try changing the gain/
peaking setting.
Adjust the gain before installing the interface into a wall
or furniture, as the gain switch will be inaccessible after
installation.
4 Power connector — Connect a 9VDC to 24VDC power supply
to this 3.5 mm, 2-pole one-piece captive
screw connector. Wire the connector as
shown here. Polarity is not important.
5 Network pass-through RJ-45 connectors (2) (RGB 474xi xi xi xi xi) — If
these connectors are not required, blank covers are supplied to
fill the faceplate openings.
6 Balanced active audio connector (RGB 474xi xi xi xi xi) —
Insert wires into and tighten the screws on this 3.5
mm, 5-pole direct insertion captive screw connector
for balanced active audio output. Wire the connector
as shown at right.
7 S-video pass-through 4-pin mini DIN connector
(RGB 474xi
xi xi xi xi) — A male 4-pin mini DIN connector
attaches here.
8 Composite video pass-through female BNC connector
(RGB 474xi
xi xi xi xi) — A male BNC connector attaches here.
9 Contact Closure connector — Insert wires into and tighten the
screws on this 3.5 mm, 3-pole direct-insertion
captive screw connector for contact closure
control. To select input 1 or 2, the respective
wire is shorted to ground.
10 RGB video output connectors — Attach coaxial cables from the
interface to the display device via these female BNC connectors.
These BNCs are on red, green, blue, black, and yellow pigtail
wires secured to the interface by the tie wraps.
For RGBHV output: R is red, G is green, B is blue, H is black,
and V is yellow.
For RGBS output: R is red, G is green, B is blue, and S is black.
For RGsB output: R is red, G is green with sync, and B is blue.
Pre-installation testing/troubleshooting
Before installing the interface into the wall or furniture, test the
system to verify that the connections and settings are correct.
2-9
Contact
Closure 1 2
Ring
Tip
Slee
v e (s)
Ring
Tip
R+ R- L+ L-
Audio
Mono