[DG] [DG11] Low voltage Course Computer 150/400

[Wildwind]

Hi

Seatalk alarms low Battery voltage 9.5volts. Batteries at 13.4 volt and tested. Removed all but one instruments st6002 still show low voltage 9.5 Removing this and test at seatalk connections in course computer 150/400 show 9.5 with nothing attached to seatalk loop. 13.4 volt arriving into CP. I can power up loop less CP and show 13.4. Any other way to check if it is CP ? If CP dead what do you suggest best replacement. I have MFD 98A, Digtail radar, interface to St60 + wind dept speed. St6002 auto pilot, type 2 drive, CP, compass and rudder sensor.

Take it I only need to replace CP, st6002+ and ?. Replace With ? Will I need to add another seatalk to seatalk NG?.

Hope there is another test I can do to confirm CP fault.

Cheers

David