Garmin 155XL GPS Receiver User Manual


 
1-2 190-00067-25 Rev D
1.3 DETAILED DESCRIPTION
Internally, the GPS 155XL is divided into six printed circuit boards:
Main
GPS Receiver
Altitude Decoder
Interface
Display
Keypad Circuit
Figure 1-1 shows the block diagram for the GPS 155XL.
Figure 1-1. GPS 155XL Block Diagram