Garmin GNC 420 Maintenance Manual page 29

Figure 3-3. Com Board Fuse Location/F600 (Replaced by R611)
400 SERIES MAINTENANCE MANUAL
P/N 190-00140-05
Figure 3-2. Com Board Fuse Location/F600
LOCATION OF
F600 (7A FUSE)
ON -00/-02/-03
COM BOARDS
LOCATION OF
F600 ON
-04 REV C
COM BOARDS
TO PRESENT
(F600 REPLACED
WITH R611, EXCEPT
ON -04 REV A AND B
BOARD)
Page 3-3
Rev. C