Garmin GNC 420 Maintenance Manual

Maintenance Manual for Garmin GNC 420 Avionics Display, GPS (168 pages)

Specifications:

301/301244-gnc_420.pdf file (03 Feb 2024)
  • Manufacturer: Garmin
  • Category of Device: Avionics Display, GPS
  • Document: GNC 420, File Type: PDF Maintenance Manual
  • Updated: 03-02-2024
  • Count of Pages: 168
Download GNC 420 Manual (168 pages)

Read PDF Document Online:

Data: UPD 3rd February 2024

Garmin GNC 420 Avionics Display, GPS PDF Maintenance Manual (Updated: Saturday 3rd of February 2024 08:28:55 PM)

Rating: 4.8 (rated by 9 users)

Compatible devices: GIA 63, Navus, AERA 660, Alpha 100, GPSMAP 441, DĒZL OTR700, 1620, GPSMAP 225.

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Text Version of Garmin GNC 420 Avionics Display, GPS Manual (Summary of Contents)

(Ocr-Read of Garmin GNC 420 Document (Main Content), UPD: 03 February 2024)

  • 91, Page 5-40 400 SERIES MAINTENANCE MANUAL Rev. C P/N 190-00140-05 5.7.5.9 Nose Bandwidth 1. Apply standard glideslope test signal to the unit (-56dBm). 2. Find the AGC voltage and use it as a reference. 3. Vary the input signal frequency over the range of r17 kHz from the assigned channel frequen…

  • 152, Garmin GNC 420 Page B-2 400 SERIES MAINTENANCE MANUAL Rev. C P/N 190-00140-05 Table B-2. Internal and External Connections (continued) INVERTER BOARD J13 Main Board J26 Display Module CCTF J27 Display Module Heater GPS MODULE ( ALL UNITS) J101 J3 Main Board Antenna In INTERFACE BOARD J19 Data Card Flex J20 Lef…

  • 127, Page 6-22 400 SERIES MAINTENANCE MANUAL Rev. C P/N 190-00140-05 Table 6-23. Main Chassis Sub-Assy, GNC 420A, 28V (Unit P/N 011-00283-21, Figure 7-6) Part Number Part Name Qty 011-00474-01 Sub-Assy,GPS Module,GNC TSOII 1 012-00611-00 PCB Assy,Comm Xcvr,16 Watt 1 012-00256-00 PCB Assy,GNC400 Inver…

  • 52, 400 SERIES MAINTENANCE MANUAL Page 5-1 P/N 190-00140-05 Rev. C SECTION 5 ALIGNMENT, CALIBRATION, AND TESTING 5.1 INTRODUCTION This section provides unit-level alignment, calibration, and testing information for the 400 Series units. The procedures in this section can be performe…

  • 157, 400 SERIES MAINTENANCE MANUAL Page B-7 P/N 190-00140-05 Rev. C Table B-7. J12 Descriptions (continued) NOT USED 25 ROT_R_LRGA ROT_R_LRGB ROT_R_LRGC 64 26 27 I I I Rotor Right Large A to C are the contacts of a single pole triple throw switch. The common of the switch is ground. Only one o…

  • 58, 400 SERIES MAINTENANCE MANUAL Page 5-7 P/N 190-00140-05 Rev. C  Standard VOR Audio Test Signal Standard VOR audio test signal is a standard VOR test signal to which is added a 1000 Hz signal, amplitude modulating the carrier 30%.  Standard Audio Test Signal Standard audio test signal is …

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