KX155 KX 155A Anybody know the difference?

"Allen" wrote in message
om...

"Mike Rapoport" wrote in message
ink.net...

"Aaron Coolidge" wrote in message
...
Mike Rapoport wrote:
: The KX155 in my "new" airplane (Helio Courier) seems to have bitten
the
: dust. It looks like an old POS and I am trying to figure out what
to
do.
: What are the functional differences between the KX155, KX165 and the
KX155A
: and KX165A? The airplane has a Garmin 300XL as #1 and a switching
relay
to
: allow the 300XL or the KX155 to drive the HSI. I am trying to
decide
what
: to do.

An additional point: ALL the 'A' suffix units are 28V only. The others
may
be
either 14V or 28V, depending on the model number.

These radios are available for not too much $$$ used.

As an aside, I think your radio trouble is in the aircraft wiring or
the
radio's internal fuse.
--
Aaron Coolidge (N9376J)

Thanks! Do you know the value of the fuse?

Mike
MU-2



I agree with Aaron, sounds like wiring problems. When you key the mike to
transmit it takes a lot more power. May be a bad ground? Is the Helio
28V
and the radios 14V (converter going bad)?

Allen


It worked normally until one day when it totally failed, no display, no
radio, nothing. It could be outside the radio but I can't think of anything
that coincides with the failure. It is a 14V airplane with a 28V 155. I am
planning of getting a 14V radio and getting rid of the voltage converter. I
will probably get a 165 so that I can get rid of the VOR converter too.

Mike
MU-2