I cannot make the ILS work, although all systems seem to be OK:
AP controls heading, speed and altitude OK
ILS receiver is tuned in the right frequency
OBS in the right course
CTR APP mode selected in EFIS
In the ADI the glideslope pointer shows but works erratically,same as the FD.-
In the HSI, the word "ILS" and its frequency appears.-
The ILS needle points to the selected course, but the course deviation needle seems not to be active and remains aligned with the to/from pointer and stuck there not moving at all.-
Other problem: In the HSI, both VOR needles work OK,  but in the RDMI, both needles remain stuck in their horizontal position, although the selectors are in VOR position.- Although both L and R DME indicators shows the correct distances.-
Some ideas about this issue ?
Thanks