Full Panasonic service Manual, as described, no problems
Text excerpt from page 14 (click to view)
ST AUDIO DSP3000 M-Port (DSP24 + ADC&DAC3000) WordClock I/O You can also use the WordClock I/O connectors of the ADC&DAC3000 to sync the box to other devices. The WordClock output always sends out the current samplerate that is used. If you use the WordClock input, the unit automatically uses the clock from this input instead of the otherwise selected clock. Never connect anything to the WordClock input unless you want to force the ADC&DAC3000 to use this signal as clock / samplerate.
