Setup Guide — RGB 560 AKM
The Extron RGB 560 AKM Architectural Interface is an analog, computer video and audio
interface with 300 MHz video bandwidth. It installs in an Ackermann floorbox. This guide
provides basic instructions for setting up the RGB 560 AKM.
Step 1 — Set the DIP switches behind the access cover
a.
Using a small Philips screwdriver, remove one screw to take off
the access cover.
b.
Set DIP switches 1 through 8 to On (up) or Off (down) as desired.
1
— Sync on green
2
— DDSP (up) or ADSP (down [default])
3
— Serration pulse
4
— Composite sync output
5
— Force negative horizontal and
6
— Vertical sync pulse width
vertical sync polarity
7 and 8
— Composite sync routing for Macintosh monitors:
•
For Macintosh 13":
Set
7
to
Off
(down
)
and
8
to
On
(up).
•
For all other Macintosh:
Set
7
to
On
(up) and
8
to
Off
(down).
No other combinations are valid.
c.
Replace the access cover.
Step 2 — Set the gaining and peaking adjustment jumpers
If using cable runs over 125 feet (38 m) you may need to adjust the gain and peaking jumpers
(located inside the unit) to compensate for signal loss, as follows:
a.
Disconnect power
from the RGB 560.
b.
Remove six front
panel screws and take
off the faceplate. Do
not pull the output
cables out of the
enclosure.
c.
Use needlenose pliers
to move gain/peaking
jumpers J16 (blue), J17
(red), and J18 (green).
Place the jumpers on
the pins that yield the
best image display:
•
Pins 3 and 4:
Increase the output signal and add 50% of the maximum peaking.
•
Pins 2 and 3:
Provide unity output (0.7 volts with no peaking [default]).
•
Pins 1 and 2:
Increase the output signal and add 100% of the maximum peaking (for very
long cable runs).
d.
Reattach the faceplate and replace the screws removed in step
2b
.
(Continued on reverse side)
slide
1 2 3 4 5 6 7 8
ON
RGB 560 AKM with ADSP
TM
BUFFERED
LOCAL OUT
MIN/MAX
H. SHIFT
AUDIO
ID PIN
4
ID PIN 11
INPUT
J16
J17
J18
Use Needlenose Pliers
to Move Jumpers
Remove (2)
Screws
Remove (2)
Screws
Remove (2)
Screws
PC Board
(Inside)
Front Face
Gain and Peaking
Jumpers
RGB 560 AKM with ADSP
TM
BUFFERED
LOCAL OUT
MIN/MAX
H. SHIFT
AUDIO
ID PIN
4
ID PIN 11
INPUT