Gts 820/850 And Gts Processor Traffic Units; Gpa 65 Pa/Lna Unit - Garmin G1000 Nxi System Maintenance Manual

GTS 820/850 and GTS Processor Traffic Units

After any maintenance or modification is made to the GTS
820/850/processor TAS/TCAS cables such as replacing a connector or
entire cable, be sure to adhere to all of the specifications and limitations
such as minimum and maximum cable attenuation, attenuation balance
between cables, phase matching etc.
Removal:
1. Gain access to the left forward avionics compartment in the nose of the aircraft.
2. Disconnect the eight coax QMA or TNC connectors.
3. Disconnect the three electrical connectors.
4. Unlock the unit from the rack by loosening the ratcheting latch mechanism.
5. Remove the unit from the rack.
Reinstallation:
1. Visually inspect the connectors to ensure there are no bent or damaged pins. Repair
any damage.
2. Insert the unit into the installation rack.
3. Lock the unit into the rack by using the ratcheting latch mechanism.
4. Reconnect the eight coax QMA or TNC connectors and the three electrical connectors.
5. Close access to the left forward avionics compartment.
6. Configure and test the GTS unit per Section 7.17.

GPA 65 PA/LNA Unit

Removal:
1. Remove cabin interior to access FS 158 at WL 119 on the left side of the fuselage.
Reference the Antenna Install drawing listed in Table 1-1 for more details.
2. Disconnect the eight coax "quick-lock" connectors.
3. Disconnect the electrical connector.
4. Remove the four mounting screws that hold the unit to the installation brackets.
Reinstallation:
1. Visually inspect the connectors to ensure there are no bent or damaged pins. Repair
any damage.
2. Reattach the unit to the mounting brackets reusing existing hardware.
3. Connect the eight coax connectors. Note the color coded bands which match the mating
connectors on the unit.
4. Reconnect the electrical connector pigtail.
5. Ensure that all connectors (coax and electrical) are locked in place.
6. Reinstall cabin interior.
7. No configuration is required for the GPA 65. Test the GTS 820/850 per Section 8.14.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
CAUTION:
Page 254
Revision 1