[AltonD]

My com port one seems to be dead. It will not receive or send data to the Garmin 430W. I have checked all of the wiring and setup screens on the 430. I have rung out all of the wires as well. It appears to be wired correctly. I just can't get the two to talk. I did move the serial lines coming from the garmin to com port 3. It appeared to be sending data to the garmin.

Anybody ran into this problem?

 

[mayo3808]

Alton
I will try to help. Have you run the comm test per the manuel to see if it's comm? Have you check ARINC connections make sure. I had a problem with mine and AFS sent me a ARINC box and test harness. They worked with me over the phone while i was at the plane. I had my ARINC connected to Serial port 3 and it wouldn't comm. I moved it to the DB-9 Conn on the back of the EFIS everything worked. Must have been bad connection on my part.
Check this and let me know. Brent

 

[AltonD]

Thanks Brent. Rob Hickman sent me his cell number and I gave him a call. The EFIS checks out fine. I am begining to think it is the serial port on the Garmin 430W. It could be wiring or a burned up port. Tomorrow, I will replace the wiring. If that does not fix it, I will swap to another com port on the 430. Thanks for the advice.

 

[AltonD]

Update, the #1 com port (out) on a brand new Garmin 430W was dead. Swapped to the #3 port and all is well.

I guess I need to send the radio/GPS back. Dang, I hate to do that.