SN4500 Service Bulletins and Service Information Letters

To download the latest software for the SN4500 please use the following form:
Software Update Download

SIL 4500-14: MOD A and Software version A2.05 – 1/24/2014

SIL 4500-12: Flux gate failure annunciation – 8/14/2012

SIL 4500-11: Software version 2.05 – 9/20/2012

SB 4500-09: Software version 2.01 – 3/25/2010

SB 4500-08: Display discoloration – 8/20/2009

SIL 4500-07: Software version 1.05 – 11/20/2008

SB 4500-06: SN4500 interfaced with WSI datalink weather receiver – 4/18/2008

SB 4500-05 Software version 1.04 – 4/18/2008

SIL 4500-04: Software version 1.03 – 12/21/2007

SIL 4500-03: Compatibility with WSI AV-300/350 datalink weather receivers – 11/30/2007

SB 4500-03: Software version 1.02 – 3/27/2007

SIL 4500-02: Interfacing with Garmin GNS 400W/500W series receivers – 3/7/2007

Note: Software version 1.03 and higher allows display of GPS approach vertical deviation without the addition of the analog lateral and vertical deviation wiring described in this SIL.

SB 4500-01: Grounding of bezel assembly – 12/6/2006