Brian Laverick-Smith wrote:
I have a fault with my cambridge version 2 which I
wonder if any one else has experienced. I will try
the agent but in between time .....?
On a recent flight the speed to fly indicator played
up showing full pull up advice with settings Mc 0
speed 45 knots and showing 2 down ! Before this it
has been good for the two years I have had it
It is 15 years old so maybe it has had its day ? [
like me ]

Any ideas folks

Brian K.G.C.
Brian L-Smith Kent England
Brian L-Smith


I had some intermittent problems with an L-NAV recently.
Netto sometimes showed eight knots up sitting on the ground,
winds aloft sometimes showed as extremely high, and of course
the altitude required indication was way off.

There are some connectors between boards that are tin-plated,
and the processor chip was socketed with a socket having
tin-plated pins. Not good design at all for an aircraft
instrument.

Took it apart, reseated everything including the processor,
and also replaced the battery. Not sure which item fixed
it, but works fine now.

-Dave