Garmin GTX 330 Installation Manual page 8

The following table identifies hardware modification (Mod) Levels for the GTX 330 and GTX 330D
Mode S Transponders. Mod Levels are listed with the associated service bulletin number, service
bulletin date, and the purpose of the modification. The table is current at the time of publication of this
manual (see date on front cover) and is subject to change without notice. Authorized Garmin Sales and
Service Centers are encouraged to access the most up-to-date bulletin and advisory information on the
Garmin Dealer Resource web site at www.garmin.com using their Garmin-provided user name and
password.
MOD SERVICE
LEVEL BULLETIN
NUMBER
1 0311
Page vi
Revision G
GTX 330 HARDWARE MOD LEVEL HISTORY
SERVICE
BULLETIN
DATE
2-6-04 GTX 330D Only. Switch/Diplexer Assembly
reworked to prevent +200 volt supply line from
shorting to the chassis.
PURPOSE OF MODIFICATION
GTX 330 Installation Manual
190-00207-02