Thanks, I'll give that a try. It is a WAAS upgraded unit. I'm new to the
plane, but the other partner who went thru the upgrade thinks he saw it
before the mod.


"tjd" wrote ...
I've heard of (and seen) that, although I thought it only affected
WAAS units, and possibly only after a firmware upgrade. If it's the
same issue, go to the AUX page, Display, adjust the contrast lvl down
to 90, and see if it still happens. If that doesn't fix it I'd call
the shop.

On Nov 17, 1:25 am, "Mike Isaksen" wrote:
No reply at all in 24hr on r.a.owning, so I'll try he

Anyone else have their Garmin 430 screen flash or blink white on them
periodically. Noticable mostly at nite. Local hanger flying expert says it
is well known and easy fix by any avionics shop. Anyone go through such a
fix and know what's done?

I flew with an 8 yo 430 install which had a continuous milk white bright
screen, and later the owner got an internal battery replaced in an
afternoon.
Could that be the same?

I want to be a bit informed before calling the avionics shop.