Has anyone got any knowledge on this problem please!
My G430/Avidyne setup works perfectly with the following exception:
When I select “OBS” on the No.1 or No.2 radio and GPS1 or GPS2 on the PFD, the OBS line appears on the HSI on the PFD. However the CDI on the HSI only responds intermittently to twisting the left knob on the PFD. The CDI sometimes also “drifts” slowly around the HSI dial. Physically removing and swapping the radios does not alter the situation.
With “VLOC1/2” selected on the PFD and “NAV” on the radios, the CDI responds to twisting the knob and navigates correctly.
So…do I have a hardware problem or could this be caused by a software setup setting on either the radios or the PFD. Or could it be caused by an out-of-date Garmin or Avidyne software update?
If anyone has any knowledge of this, I will be very interested as my AMO is talking big bucks to remove the PFD and send it halfway across the world for inspection.
Johannesburg, South Africa