Mark II Navigation System Diagnosis
The Nav computer does not communicate with the DIS/MoDiC.
Diagnosis of the Nav Computer is performed with conventional procedures and by utilizing the Status displays on the previous pages.
Refer to the DIS for RGB output signal oscilloscope displays for visual confirmation of signal integrity.
The Board monitor (BMBT) does however communicate with the DIS/MoDiC. Follow the fault symptom path of the DIS Diagnosis Program for detailed diagnostic procedures.