Audio Authority High Definition Cat 5 Matrix AVX-562 - Manual (Page 23)

22 Audio Authority AVAtrix User Manual
Audio Authority AVAtrix User Manual 23
Appendix C: How to Use Diagnostic Modes
To access diagnostic modes, enter Setup Menu (press the knob and touch MENU) and select DIAGNOSTICS at
the bottom of the menu.
Expander Address Diagnostic
This diagnostic can be used to determine whether all of your AVAtrix expanders are set to the correct address.
Enter this diagnostic mode and then turn the address dial on the rear of each expander until the “X” on the screen
is under the correct address. The AVX-562 has an 1176 inside the chassis that is addressed “A”. If A does not ap-
pear on the diagnostic screen, the internal bus cable may be loose. The Model 1170 does not have an address or
address dial.
Firmware Version Diagnostic
This diagnostic shows what firmware version resides in each expander in the AVAtrix network, as well as what firm-
ware upgrade versions may be stored on the flash card in the AVAtrix card slot. This informaiton helps to determine
if the AVAtrix needs a firmware upgrade or if all processors in the system have been successfully upgraded.
Local IR Diagnostic
This diagnostic shows the raw on/off times of the encoded IR signals coming from any remote (other than the
1105) pointed at the front panel IR window of the AVAtrix. This diagnostic shows the “bit times” only and does
not show carrier frequency information.
The first command in the test may result in zeros, so press the button
twice to get a useful readout.
Zone IR Diagnostic
This diagnostic shows the raw on/off times of the encoded IR signals coming from any Cat 5 wallplate/receiver. It
shows the “bit times” as well as the period of the IR carrier. Dividing one (1) by the number of microseconds shown
on the screen results in the detected carrier frequency (see example below). This diagnostic is very helpful for
troubleshooting IR response issues in an AVAtrix system.
“Waiting for I/R data from wallplate” appears on the entry screen of this diagnostic. Watch this screen to indicate IR
interference from a Plasma TV or other ambient conditions. Do not press any buttons on IR remote controls during
the test. If any other message appears during the test, IR interference is present. Go to a wallplate/receiver loca-
tion and press a button on a source unit IR remote (not the the 1105BK). The first command in the test may result in
zeros, so press the button twice to get a useful readout.
The AVAtrix screen shows details similar to the
example above. The top line shows the zone from
which the command originated and the period of the
IR carrier. To determine the detected carrier frequen-
cy, divide the number on the screen by 1,000,000.
Then divide one (1) by the resulting number.
In this example, the command came from port two on 1176 “A”. The period of the carrier is 26 microseconds. Divide
26 by 1,000,000 to get .000026. Then divide one (1) by .000026 to get a carrier frequency of 38.461kHz. Each
decimal number is a “burst pair” in the IR data train. The first signal in this remote command turns the carrier on for
3.460 milliseconds and off for 1.740 milliseconds. The second command was on for 400 microseconds and off for
460 microseconds. Use this information to see what data the remote is sending out and if it looks correct. Zeros, or
numbers that don’t show any perceptible pattern may indicate interference.
Source and Control Restrictions Diagnostic
All restrictions can be monitored and temporarily suspended from this screen. The initial screen shows the
sources that currently have permanent restrictions (R) and View-lock or IR-lock restrictions with time re-
maining. Touch PAGE to see details on each source’s restriction status at each zone. Touch ALLOW ALL to
temporarily suspend all restrictions for troubleshooting purposes. Restrictions are restored upon exit of this
diagnostic.