9.743 Wegener-UNITY44XX

This page describes the device driver and the device window for the Wegener UNITY 4420/4422 IRDs. The actual version of the driver is limited to IRDs equipped with two audio output pairs.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

• --- Contains the main receiver settings and status display.
• --- Contains the parameters concerning video and audio output.
• --- The faults page.
• --- The device info page.
• --- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the UNITY IRD.

Remarks

• The UNITY IRD is controlled via a terminal protocol. Specially the status reports sent by the receiver are designed to be read by a human, not by a computer. Hence the update of information ad the screen is very slow.
• The IRD shows not all program numbers of large bouquets. This is a limitation of the IRD, not of the driver.
• Audio channels are selected by their language code with the UNITY. If at the uplink the same language code is used for two channels, they cannot be assigns explicitly to the outputs of the receiver. Use the automatic selection "*" in this case.
• By default, the driver treats missing audio or video data in the MPEG stream as a fault. This may not be desirably in all cases. Switch "OFF" the fault conditions which shall not be monitored at the faults page. This does not influence the status display at the primary parameter page.

Low Level Configuration Commands

When using a UNITY IRD the first time, the device should be initialized with the commands shown below. They may be entered through the "low level" command facility of the software or by means of a RS232 terminal connected to the UNITY's terminal port.

• reset <ENTER> bacdore <ENTER> (or use second Password) vidtest <ENTER> sethdelayp 3e <ENTER> sethdelayn 34 <ENTER> eewrite h ed 0 <ENTER> isog e <ENTER> bacdore <ENTER> reset <ENTER> --- Reset Unit Password Vidtest PAL Video Horizontal Delay NTSC Video Horizontal Delay COMPEL Disabled Bypass TAG Password Reset Unit

Password Setting (Change Password)

• reset <ENTER> tecaligi <ENTER> vistest <ENTER> eewrite h 131 ff <ENTER> reset <ENTER> --- Reset Unit Second Password Vidtest Changed tecaligi to bacdore Reset Unit

Trouble Shooting

The list below shows some troubleshooting hints for the UNITY IRD, given by Wegener. Not all items apply to monitoring & control in particular, they however may be helpful during system integration.

• Unit will not power up and/ or front panel does not work. ---

  • Verify that unit is connected to a good AC source.
  • Verify that all wires and cables are connected inside of the unit.
  • Check to see if the unit will respond to terminal commands and give the desired outputs.
  • If the unit does, try replacing the front panel from a unit that has bad outputs if available.
  • If none of the above items work, contact the factory for further instructions.

• No audio out. ---

  • Confirm that the app code version is 1.2 or later.
  • Confirm that a valid audio designator (program) has been selected.
  • Verify that the external connections and equipment is working properly.

• No AES/EBU output. ---

  • Confirm that the analog audio outputs are working.
  • Confirm that the ribbon cable from the AES/EBU port is connected properly to J12 on the main motherboard.

• No composite video out. ---

  • Confirm that the app code is 1.2 or later.
  • Confirm that the receiver is actually seeing program information via the front panel or terminal command "r m". If no programs is available, verify that the transmit equipment is working properly and reset the receiver. If programs are available, confirm that the receiver is set to a program with active video.
  • Check the output connector and confirm that it has not been broken.

• Composite video out, but with problems. ---

  • If the video is not centered on the screen as it should be, confirm tha the Pal horizontal delay is set to "3e". Use the terminal commands: bacdore <enter> sethdelayp <enter>. If it is not "3e", then type: sethdelayp 3e <enter> (PAL only)
  • Incorrect levels - confirm that proper terminations are being used
  • Adjust R52 only if the level is out of spec. BE EXTREMELY CAREFUL WHILE ADJUSTING THIS PART. IT IS A SURFACE MOUNT POT. R52 is located at the rear of the unit.

• No SDI output or bad SDI output. ---

  • Confirm that the composite video output is working properly.
  • Confirm that the SDI output connector is not broken.
  • Confirm that the SDI parts are programmed with the correct version of code( serial5.jed) for PAL. The only way you can confirm the version of code is to use the JTAG programmer and verify the programming of the Xilinx part.

• Audio/video sync is off. ---

  • Confirm that the A/VSync is set to 0"(zero) via the terminal by using the following commands: bacdore <enter> vidtest <enter> capcr 0 <enter>.

• The receiver will not lock to the carrier. ---

  • Verify that you have a good signal.
  • Verify that the LNB lo's are set correctly.
  • Verify that the receiver says "bypassing tags" at the bottom of the "r c" report. If it does not, type: isog e <enter>.

Variables defined by this device driver