Narco Avionics NAV122D Installation Manual Download

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NARCO AVIONICS NAV122D, NAV122D/GPS

1.3 DESIGN FEATURES

Multiple functions to simplify installation.

ARINC Panel cutout, 3” instrument hole.

Direct replacement of existing NAV122 (minus marker RCVR)

Easily replaces NAV111/NAV112 receivers (cable modification required)

The NAV122D/GPS can be used as the external CDI display required in a IFR certified GPS installation

Meets the following TSO’s:

C-40c

VOR

TSO

C-36e

Localizer

TSO

C-34e

Glide Slope TSO

1.4 PRODUCT SPECIFICATIONS

TABLE 1.2 GENERAL SPECIFICATIONS

GENERAL

NAV122D

Mechanical

Physical Dimensions

Figure 2-3

Weight NAV122D

2.5 Lbs.

Weight NAV122D/GPS

2.6 Lbs.

Electrical

Supply Voltage (see note 1)

13.75VDC

Current, less pilot lamps, 14V

350mA

Current, less pilot lamps, 28V (see note 2)

400mA

Pilot lamp current 14V

250mA

28V

250mA

Notes: 1. Voltage Converter required for 28VDC installations.
2. With MP 10, 28 to 14Vdc Voltage Converter - 0.60 Ampere.

1-2

Summary of Contents for NAV122D

Page 1: ...d NAVIGATION SYSTEM Installation Manual 03128 0620 NARCO AVIONICS INC 270 COMMERCE DR STE 200 FORT WASHINGTON PA 19034 215 643 2900 FAX 215 643 0197 www narcoavionics com COPYRIGHT NARCO AVIONICS INC...

Page 2: ......

Page 3: ...IONAL ACCESSORIES 1 6 1 6 1 Miscellaneous Items NOT Supplied 1 6 1 7 OPERATOR LICENSE REQUIREMENT 1 6 1 8 OPERATION 1 7 LIST OF TABLES TABLE TITLE PAGE NUMBER NUMBER 1 1 NAV SYSTEM CHARACTERISTICS 1 1...

Page 4: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Page 5: ...Introduction general information required in planning the installation Section 2 Installation detailed procedures for performing the mechanical and electrical installation 1 2 PRODUCTION DESCRIPTION...

Page 6: ...installation Meets the following TSO s C 40c VOR TSO C 36e Localizer TSO C 34e Glide Slope TSO 1 4 PRODUCT SPECIFICATIONS TABLE 1 2 GENERAL SPECIFICATIONS GENERAL NAV122D Mechanical Physical Dimensio...

Page 7: ...min Selectivity 6dB 19kHz 60dB 42kHz AGC Flatness 10 V to 10k V 1 0dB max Audio Output 500ohm load 50mW VOR Accuracy 2 7 LOC Accuracy 5 a DME Channeling Code ARINC 2 out of 5 TABLE 1 4 GLIDE SLOPE REC...

Page 8: ...50mV GS Up Down 78mV for 091 ddm Warning Flag 250mV ddm Difference in depth of modulation TABLE 1 6 INDICATOR IMPEDANCE AND DEFLECTION CHARACTERISTICS MOVEMENT IMPEDANCE DEFLECTION CHARACTERISTIC LEFT...

Page 9: ...ts refer to the Units Part Number and its Description Additional Installation Kits or detail parts of a Kit may be ordered from the Installation Kit Parts List Item Part Numbers are provided for servi...

Page 10: ...TIONAL ACCESSORIES a Power Converter required only for 28V installations Narco Voltage Converter MP 10 Voltage Converter P N 03710 0500 or equivalent b Headphones low impedance type 300 to 1000ohms c...

Page 11: ...ni bearing is obtained by turning the OBS knob to set that bearing shown on the Omni Bearing Card under the yellow Selected Bearing Indicator VOR LOC Deviation Indicator In VOR mode the vertically ori...

Page 12: ...rtified GPS and the appropriate GPS mode pin on P811 is active frequency display now showing GPS the following operations apply Frequency Recall Pressing on the OBS knob will momentarily display the c...

Page 13: ...nections 2 13 2 4 2 Interconnect Cable P810 2 13 2 4 2 1 Power Input Wiring 2 16 2 4 2 2 Audio Interconnections 2 16 2 4 2 3 DME and LOC GS Activate 2 16 2 4 2 4 Dual Channeling 2 16 2 4 2 5 Autopilot...

Page 14: ...ECTOR 2 13 2 7 P810 ASSEMBLY 2 14 2 8 POWER INPUT CONNECTIONS 2 15 2 9 JP802 LOCATION 2 17 2 10A NAV122D GPS CONNECTIONS 2 19 2 10B NAV122D GPS CONNECTIONS 2 20 2 10C NAV122D GPS CONNECTIONS Chas BACB...

Page 15: ...on Bench Test The purpose of this sub section is to determine that the Unit meets factory performance specifications 2 2 2 1 Test Equipment Required TYPE CHARACTERISTIC EXAMPLE Regulated DC Power Supp...

Page 16: ...in Figure 2 1 will permit bench testing of a NAV122D Alternatively the cable to be installed in the aircraft may be used providing in addition a checkout of avionics and cabling Additionally a second...

Page 17: ...testing and for NON GPS use in the aircraft WARNING Attempted use of this Jumper Plug Assembly with earlier units will cause damage to the radio FIGURE 2 2 ADDITIONAL BENCH TEST HARNESS FOR NAV122D G...

Page 18: ...in audio output Ident Filter 18dB minimum B VOR Converter 1 Modulate generator with a composite VOR signal set RF attenuator to 500 V 2 Check VOR accuracy at the four cardinal points 0 90 180 270 VOR...

Page 19: ...n external pullup will need to be used to check for correct channeling 1 Refer to Table 2 1 for channel coding 2 With power applied to the NAV connect a voltmeter between P810 pin 18 and ground VOR Ch...

Page 20: ...X X X X B 5 X X X X C 4 X X X X D 23 X X X X E 22 X X X X 2 Out Of 5 Channel code cont KHz Channels KHz ARINC P810 PIN 00 05 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 A 13 X X X X X X X X...

Page 21: ...ng from the rear of the Unit Connector P810 incorporates a slide lock mechanism Before installing the connector move the slide to position the slide s longer tab away from the connector mate J810 and...

Page 22: ...NARCO AVIONICS NAV122D NAV122D GPS 4 2 8...

Page 23: ...INSTALLATION SECTION 2 FIGURE 2 5 MOUNTING TEMPLATE FRONT REMOVAL FOR USE WITH MARMAN CLAMP Not drawn to size for reference only 2 9...

Page 24: ...FUNCTION NAV Power Refer to Section 2 4 2 1 6 and 25 Switched 14 28V Output 7 and 26 14 28Vdc Input From Circuit Breaker 9 Pilot Lights 28V 16 14V Input 19 Ground REAR SUPPORT STUD 27 Pilot Lights 14...

Page 25: ...LEFT IN 2 RIGHT IN 3 TO IN 4 FROM IN 5 UP IN 6 DOWN IN 7 GS FLAG IN 8 GS GLAG IN 23 NAV FLAG IN Arinc Resolver Refer to section 2 4 2 8 9 ROTOR C OUT 10 ROTOR C IN 11 ROTOR H OUT 12 ROTOR H IN 13 STAT...

Page 26: ...FROM IN 5 UP IN 6 DOWN IN 7 GS FLAG IN 8 GS GLAG IN 23 NAV FLAG IN 24 TO RIGHT DOWN GS FLAG OUT 25 UP OUT 26 GS FLAG OUT 27 FROM OUT 28 LEFT OUT Arinc Resolver Refer to section 2 4 2 8 9 ROTOR C OUT...

Page 27: ...THRU REAR SUPPORT STUD REAR VIEW NAV G S P811 FIGURE 2 6 BNC CONNECTOR IDENTIFICATION 2 4 2 Interconnect Cable P810 Table 2 2 lists rear panel connections to a NAV Receiver Connector P810 may be cons...

Page 28: ...cks into pin cavity and becomes visible through inspection port Be careful not to overheat pin or melt insulation on wire 5 Pass pin through hood and insert pin in connector until a click is heard or...

Page 29: ...INSTALLATION SECTION 2 OR EQUIVALENT FIGURE 2 8 POWER INPUT CONNECTIONS 2 15...

Page 30: ...and LOC GS Activate DME Channeling ARINC 2 out of 5 channel coding is provided by the NAV units Table 2 1 furnishes the connector pin numbers for cable construction Channel line isolation is not requ...

Page 31: ...1K ohm 150mV for 10 course change 250mV at full TO or FROM LOC Left Right Warning TO 28 and 29 10 and 29 One 1K ohm One 1K ohm 90mV for 093 ddm 250mV at full TO GS Up Down Warning GS 29 and 30 11 and...

Page 32: ...Arinc Resolver Connections These connections are used in conjunction with a GPS Annunciation Control Unit to allow the NAV122D GPS P N 03128 0301 internal resolver to be used by the internal VOR conve...

Page 33: ...INSTALLATION SECTION 2 FIGURE 2 10A NAV122D GPS IFR GPS and GPS annunciator relay diagram Chassis BACBCDD and earlier see Figure 2 10C for later Chassis level information 2 19...

Page 34: ...F OUT STATOR G OUT 15 STATOR G IN 16 STATOR G OUT STATOR D OUT 17 STATOR D IN 18 STATOR D OUT STATOR E OUT 19 STATOR E IN 20 STATOR E OUT GROUND 24 WARNING Chassis level BACBCDD and earlier ONLY Do no...

Page 35: ...INSTALLATION SECTION 2 FIGURE 2 10C GROUND 19 NAV122D GPS IFR GPS and GPS annunciator relay diagram Chassis BACBCED and later 2 21...

Page 36: ...TESTS The purpose of this series of tests is to assure proper operation of the installed avionics equipment First and most important is complete inspection of the installation to be sure that all air...

Page 37: ...Pull VOL IDENT knob and note presence of adequate volume level Depress VOL IDENT knob and note decrease in volume level B VOR 1 Set test equipment and NAV Receiver to a VOR frequency Modulation shoul...

Page 38: ...n performance due to various landing gear and flight control surface configurations D Good excuse to go flying All of these tests must be performed at an ILS facility on an airway or in an area where...

Page 39: ...aircraft through normal pitch and roll altitudes Left right and up down indicators should perform normally and a warning flag should not be visible at any time 4 Engage autopilot and fly a coupled IL...

Page 40: ......

Page 41: ...sted to operational and crash safety tests Vibration 8 0 Equipment tested without shock mounts to Categories M N and B DO 160C Table 8 1 Explosion 9 0 Equipment identified as Category X no test requir...

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