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Garmin GNC 250 Installation Manual

Manual is about: GARMIN OWNER'S MANUAL GNC 250

Summary of GNC 250

  • Page 1

    Av. Kit install. Manual 190-00067-62 rev. E page 1 gnc 250/gnc 250xl/gps 150xl installation manual garmin international, inc. Part number: 190-00067-62 1200 e. 151st street revision e, 3 april 1998 olathe, kansas 66062-3426.

  • Page 2

    Av. Kit install. Manual 190-00067-62 rev. E page 2 © copyright 1996-1998 garmin corporation all rights reserved this publication is the proprietary property of garmin international inc. It may not be reproduced or transmitted in any form whether printed or electronic, without the expressed written c...

  • Page 3

    Av. Kit install. Manual 190-00067-62 rev. E page 3 table of contents section 1 general description 1.1 introduction 1.2 technical characteristics 1.2.1 physical characteristics 1.2.2 operational characteristics 1.2.3 interfaces 1.3 licence requirements section 2 installation considerations 2.1 anten...

  • Page 4

    Av. Kit install. Manual 190-00067-62 rev. E page 4 list of illustrations figure 1-1 pinout definition, 37 pin dsub 1-2 pinout definition, 26 pin hd-dsub (gnc 250/gnc 250xl only) 1-3 interconnect schematic 1-4 interconnect schematic notes 2-1 gps antenna installation considerations 2-2 unit installat...

  • Page 5

    Av. Kit install. Manual 190-00067-62 rev. E page 5 section 1 general description 1.1 introduction this manual describes the physical, mechanical, and electrical characteristics and the installation requirements for the gnc 250, gnc 250xl and gps 150xl aviation kits. Unless stated otherwise, informat...

  • Page 6

    Av. Kit install. Manual 190-00067-62 rev. E page 6 1.2.3 interfaces the unit provides interfaces to various general aviation instruments. Figure 1-1 defines the function of each pin on the 37 pin dsub connector located at the back of the rack. Figure 1-2 defines the function of each pin in the 26 pi...

  • Page 7

    Av. Kit install. Manual 190-00067-62 rev. E page 7 nav super flag output: output capable of driving positive logic nav super (pin 10) flag by sourcing up to 500ma for flag out of view (nav valid). Battery +,-, charge enable connection for garmin remote battery accessory. (pins 30, 34, 29) 1.2.3.2 26...

  • Page 8

    Av. Kit install. Manual 190-00067-62 rev. E page 8 interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to other equipment, which can be determined by turning the equipmen...

  • Page 9

    Av. Kit install. Manual 190-00067-62 rev. E page 9 for rotorcraft, locate the ga 56 antenna: 1) as far from the main rotor hub as possible. This reduces the percentage of time the blade blocks the antenna. 2) as far below the blade surface as possible if installing the antenna under the blade. This ...

  • Page 10

    Av. Kit install. Manual 190-00067-62 rev. E page 10 gps antenna: locate as far as possible from all comm antennas and all comms (including the gnc 250/gnc 250xl). The gps antenna will be much less sensitive to comm antennas that use a 1.57542 ghz notch filter. Unit: locate as far as possible from al...

  • Page 11

    Av. Kit install. Manual 190-00067-62 rev. E page 11 do not route the comm antenna cable near any adf antenna cables. (gnc 250/gnc 250xl only) route the gps antenna cable as far as possible away from all comms and comm antenna cable. 2.4 cooling air cooling air is highly recommended for the unit, but...

  • Page 12

    Av. Kit install. Manual 190-00067-62 rev. E page 12 011-00154-00 mounting rack, (without connectors) note: a mounting rack is required for approved installations. The following hardware is required for installation of the mounting rack, but is not provided: #6-32 flat head screw (4 ea.) #6-32 self-l...

  • Page 13

    Av. Kit install. Manual 190-00067-62 rev. E page 13 3.3 cable installation a. Route the coax cable to the rack location keeping in mind the recommendations of section 2. Secure the cable in accordance with good aviation practice. B. Trim the coaxial cable to the desired length and install the bnc co...

  • Page 14

    Av. Kit install. Manual 190-00067-62 rev. E page 14 3.4 rack installation a. Figure 3-4 shows outline dimensions for the aviation rack. Install the rack in a rectangular 6.320" x 2.000" hole in the instrument panel. Exercise caution when installing the rack into the instrument panel. The rack is des...

  • Page 15

    Av. Kit install. Manual 190-00067-62 rev. E page 15 4.1 test mode operations with power applied to the aviation rack and the unit unit off, depress and hold the ent key and turn the unit on (release the ent key when the display activates). The first page displayed is the display test page. While in ...

  • Page 16

    Av. Kit install. Manual 190-00067-62 rev. E page 16 for more information on the gnc 250xl and gps 150xl display setting see the display contrast and mode set page and the backlight set page described in its pilot's guide (gnc 250xl: 190-00067-60 and gps 150xl: 190-00067-80) 4.2.2 i/o channel 1 selec...

  • Page 17

    Av. Kit install. Manual 190-00067-62 rev. E page 17 4.2.3 arinc 429 channel select the arinc 429 channel test page. Change the selectable output to match that of the installed equipment. The available options are: input: no selection available output: field description off no units connected to arin...

  • Page 18

    Av. Kit install. Manual 190-00067-62 rev. E page 18 304* waypoint identifier characters 1-3 305* waypoint identifier characters 4-6 306* waypoint latitude 307* waypoint longitude identification data label (octal) description 377 equipment identifier 371* general aviation equipment identifier *these ...

  • Page 19

    Av. Kit install. Manual 190-00067-62 rev. E page 19 input: field description off rtcm 104 rtcm sc-104 compatible differential gps receiver. Note: below is a list of the rtcm sc-104 messages that the unit will receive. Message type 1 - differential gps correction message type 2 - delta differential g...

  • Page 20

    Av. Kit install. Manual 190-00067-62 rev. E page 20 the first line of power information shows the source of external power as shown below: external power “voltage” battery power wall adapter the presence of a wall adapter will overide the other two sources. Battery power will not be shown unless on ...

  • Page 21

    Av. Kit install. Manual 190-00067-62 rev. E page 21 superflag in view ensure superflag in view out of view ensure superflag out of view 4.3.3 annunciator test select the annunicator test page. Using the controls on the unit front panel make the selections indicated below and verify the interfaces as...

  • Page 22

    Av. Kit install. Manual 190-00067-62 rev. E page 22 4.3.6 altitude input test (gnc 250/gnc 250xl only) select the gray code altitude test page if this input is used. Verify that the altitude input is reading the correct altitude. Note: this does not display serial altitude. 4.3.7 obi test select the...

  • Page 23

    Av. Kit install. Manual 190-00067-62 rev. E page 23 d) transmit for a period of 20 seconds e) verify that the flag does not come into view f) repeat steps d) and e) for the following frequencies: 121.175, 121.20, 131.250, 131.275 and 131.300 g) repeat steps c-f for all comms installed in the aircraf...

  • Page 24

    Av. Kit install. Manual 190-00067-62 rev. E page 24 figure 1-1 pinout definition, 37 pin dsub.

  • Page 25

    Av. Kit install. Manual 190-00067-62 rev. E page 25 figure 1-2 pinout definition, 26 pin hd-dsub (gnc 250/gnc 250xl only).

  • Page 26

    Av. Kit install. Manual 190-00067-62 rev. E page 26 figure 1-3a interconnect schematic.

  • Page 27

    Av. Kit install. Manual 190-00067-62 rev. E page 27 figure 1-3b interconnect schematic.

  • Page 28

    Av. Kit install. Manual 190-00067-62 rev. E page 28 figure 1-4 interconnect schematic notes.

  • Page 29

    Av. Kit install. Manual 190-00067-62 rev. E page 29 maintain 6"(16 cm) compass safe distance fig 2-2 unit installation considerations fig 2-1 gps antenna installation considerations antenna masked by vertical fin, t tail, or dorsal fin antenna must be on top of aircraft. Ok rte sq nrst d actv stby n...

  • Page 30

    Av. Kit install. Manual 190-00067-62 rev. E page 30 fig 3-1 stud mount ga 56 antenna installation.

  • Page 31

    Av. Kit install. Manual 190-00067-62 rev. E page 31 figure 3-2 flange mount ga 56 antenna installation.

  • Page 32

    Av. Kit install. Manual 190-00067-62 rev. E page 32 figure 3-3 coax cable installation.

  • Page 33

    Av. Kit install. Manual 190-00067-62 rev. E page 33 figure 3-4 aviation rack dimensions cog x cog y cog z unit weight w/o rack gnc 250 3.56" 1.00" 2.64" 2.4 lbs gnc 250xl 3.40" 0.93" 2.34" 2.6 lbs gps 150xl 3.45" 0.85" 2.19" 1.7 lbs.

  • Page 34

    Av. Kit install. Manual 190-00067-62 rev. E page 34 figure 3-5 aviation rack installation.

  • Page 35

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  • Page 36

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  • Page 37

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  • Page 38

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  • Page 39

    Av. Kit install. Manual 190-00067-62 rev. E page 39 appendix b connector changes stamped contact connector usage garmin panel mount gps radios have previously been shipped with stamped crimp type contacts. All products are now being shipped with machined mil-spec contacts with color-coded barrels. T...

  • Page 40

    Av. Kit install. Manual 190-00067-62 rev. E page 40 remote battery pin assignments a change was made to the remote battery connectors starting with serial numbers 33050055. Units with lower serial numbers have pin contacts on the battery pack. Units 33050055 and up use socket contacts on the battery...

  • Page 41

    Appendix c stc permission gnc 250: consistent with n8110.69 or order 8110.4, aviation authority approved installers are hereby granted permission to use stc# sa00336wi data to modify aircraft. Gnc 250xl: consistent with n8110.69 or order 8110.4, aviation authority approved installers are hereby gran...

  • Page 42

    Av. Kit install. Manual 190-00067-62 rev. E page 42.

  • Page 43

    Av. Kit install. Manual 190-00067-62 rev. E page 43.

  • Page 44

    Av. Kit install. Manual 190-00067-62 rev. E page 44.