Sabine Wireless: Application and Troubleshooting Guide 11 of 12
to do the following: Connect your receiver to your computer using the USB connection.
You should see a Windows display indicating a USB device has been found. Click on
the display and you should get a Windows Wizard asking to install this new device.
Follow the on-screen instructions. When you are prompted to choose the location of
the driver, choose browse. Your driver will be in the Windows/System32 directory on
your computer. Choose that directory. This should successfully install the driver. Due
to a quirk in Windows you may need to repeat the process again in order for your
receiver to connect.
8. Upgrading receiver firmware and remote control software
8.1. The first step to solving problems is to be certain that you have installed the latest
versions of the SWM7000 receiver firmware and Sabine Remote computer control
software. The receiver’s firmware version flashes in its LCD window a few seconds the
power is turned on. If the version is less than V2.68, you may experience occasional
dropouts!! Using a PC connected to the internet, download the Sabine Upgrade
Wizard from the following link and follow the instructions carefully. Always follow the
Wizard’s suggestions.
http://www.sabine.com/resources/downloads-software.htm
Use the Wizard to upgrade Sabine Remote computer control software.
8.2. Any receivers with serial numbers below 12000 will only upgrade the DSP processor.
Contact Sabine for specifics.
8.3.
After upgrading older receivers, the LCD display sometimes shows strange characters.
This is because some old firmware versions did not assign names to channels, but the
newer upgraded versions do. The easiest way to fix this is to do a hard reset (hold in
the channel “A” Contrast and “Bypass” buttons at the same time as you power on the
unit). This will assign names to channel A and B of “CHAN A” and “CHAN B”.
8.4.
Digital Audio
The SWM7000 provides for digital audio output and complies with the
following AES/EBU conventions:
Audio sample word = 16 to 24bit, SWM7000 = 24bit. Signal Amplitude = 2 to
7Vpp, SWM7000 = 5Vpp. The signal amplitude should be measured across a
110 ohm load without any interconnecting cables. See AES3 documentation.
The digital sync input is classified as a Digital Audio Reference Signal (DARS)
which follows conformity with AES11. The IC being used on the SWM7000 is a
Crystal CS8420.
The SWM7000 does not support Wordclock. The BNC connector on the receiver
is an AES synchronization input. Typically, this input is an XLR connector, so
Sabine provides a BNC to XLR adaptor (part number: SWC-BNC-XLR).
There is one known bug on some receivers. Each digital frame includes the
clock bit rate. The SWM7000 incorrectly sends the rate as 44.1KHz when it is
actually 48KHz. The user must override this by setting the correct bit rate to
48KHz on the receiving device. Receiver codes V2.88 and higher have fixed this
issue.
