Specifications; Remote Programming; Troubleshooting - Inday AV4X-R User Manual

Remote Programming

The AV4X-R uses the same
remote as our RGB4X-R com-
ponent video switcher. If this
causes a conflict in your sys-
tem, please contact the factory
for other code options.
The Remote Control has 10
buttons. Only 5 of which are
active at one time. The unit
comes programmed to re-
spond to the left side column of
buttons. You can program the
unit to switch using the right
side buttons, if desired. This
facilitates using two AV4X-R's
in a system and having inde-
pendent control over both.
Perform the following to repro-
gram the AV4X-R:
1-Remove power from the unit
by unplugging the 12VDC Con-
nector
2-Press and hold the front
panel button
3-Apply power to the unit.
4-Release the front panel but-
ton after the display stops
blinking.
Each time you perform this
operation you are alternating
the button group used on the
IR remote.
Questions
Q: Can I switch Coax Digital Audio using the
video channel.
A: Yes. Coax digital Audio is just AES/EBU digi-
tal audio that is designed to run over Coax
cable just like video and therefore can be
switched the same way
RS-232 Control
RS-232 serial control is provided through a 3.5mm
stereo jack on the rear panel. A 3.5mm to DB9 cross-
over cable is provided. Any Terminal communications
program such as Windows "HyperTerminal" will work
for control.
Communications parameters are: 9600,N,8,1. See
specifications for wiring information.
Once connected, pressing the Enter key will cause the
AV4X-R to respond with its help message:
"AV4X-R Online! Type "S" for Status,
Numbers 1-4 for control."
For current status, type the character "S" followed by
the "Enter" key. The current input is returned.
To switch inputs, type numbers 1, 2, 3 or 4 then
"Enter" . The unit will switch inputs and return a status
message.
All other characters will return the help message.
If the AV4X-R is in a powered-off mode via the IR re-
mote control, any Serial port activity will restore power.

Troubleshooting

Problem: I now have noise or interference in the pic-
ture that was not there before.
Fix#1: The problem may be "cheap" cables. The
RGB4X is extremely wideband. The switching IC's are
rated at 700MHz. That's is 166 times the normal band-
width of composite video (NTSC). If you use marginal
cables with poor shielding, external RF interference will
penetrate the cables and may cause this interference.
Consider your cables to be like your water plumbing. If
they leak, you have a problem! You can fix this problem
by using a quality coax cable, such as type RG59.
Fix#2: Ground Loops can also cause noise and hum
bars. Try lifting the ground leads of your equipment by
using a "cheater plug". This is a 2 prong AC adapter
without the ground prong, available at most hardware
stores.

Specifications

Audio Specifications:
Color Coded: White, Red
Unbalanced Stereo Audio
Distortion: 0.01%
Noise: -88dB
Nominal Signal should be –10dB
Clipping +12dB.
Video Specifications:
Color Coded: Yellow
Impedance 75 ohms
Noise > 60dB below 1Vp-p
Frequency Response DC-140 Mhz +/-3dB
RS-232 SERIAL INTERFACE:
3.5mm Stereo Jack
Tip: Tx, Ring: Rx, Sleeve: Gnd
POWER:
12VDC-Unregulated(18VDCMax)
@ 150ma Max.
Wall Transformer supplied
DIMENSION:
4"W x 6"L x 2"H
TEMPERATURE
0 TO 50 DEGREES C
HUMIDITY
0 TO 90% (non-condensing)
Disclaimer
This manual has been checked for accuracy. Inday
assumes no liability for damages incurred directly
or indirectly from errors or omissions or from the
use and suitability of this product for a particular
application.
Revision: Preliminary 10/1/2004
Inday www.inday.com
503-255-1451 Fax 503-251-0586
1818 NE 140th Portland, OR 97230