Garmin GNC 420 GPS Receiver User Manual


 
Page A-2 400 SERIES MAINTENANCE MANUAL
Rev. C P/N 190-00140-05
The Com Voltage and Current requirements for the GNS 420A and GNS 430A are listed in Table
A-2.
Table A-2. Voltage and Current Supply Requirements
Connector / Pin DC Voltage Tolerance(V) Max Current (DC) Conditions
J2, Pins 11 & 12 +27.5
r.4
3.0 A Transmit Mode
A.4 DISASSEMBLY AND ASSEMBLY
Disassemble the GNS 430A according to the procedures given in Section 4.
A.5 ALIGNMENT, CALIBRATION, AND TESTING
Perform testing according to the procedures given in Section 5.
A.6 REPLACEABLE PARTS AND ASSEMBLIES
See Section 6 for replaceable parts and assemblies.
A.7 ASSEMBLY DRAWING
See Page 7-1 for a list of applicable drawings.