BBIQ Troubleshooting (Option BBA)

The BBIQ Verification tests rely on the BBIQ Front Panel Alignment being run within 8 hours of running a verification test. If the alignment timestamp is greater than 8 hours from the current time, TME will run the BBIQ alignment. If the time difference between the DUT and the TME station clock is more than 8 hours, then TME will get stuck in an endless BBIQ alignment loop. To prevent this from happening, the DUT clock should be set to the local time. At the end of the adjustment cycle, set the DUT clock back to the customer's local time.

The BBIQ hardware consists of three main components:

  1. The Front Panel Interface Board — performs input selection, impedance switching, and range selection.

  2. The Interface Cable — connects the Interface board to the Main board.

  3. The Main Board — provides power supplies, the calibrator signal, the interface control, and the DSP hardware.

In a retrofit scenario, the most likely cause for the BBIQ retrofit to fail will be damage to the interface cable. The interface cable contains delicate coaxial cables that can be damaged during the retrofit process.

For more in depth descriptions, please refer to the signal analyzer Service Guide.