Garmin GMX 200 Installation Manual - page 37

5.2 

29B

Post-Installation Power Check 

Verify that all cables are properly secured and shields are connected to the shield block of the connector. 

Check the movement of the flight and engine controls to verify that there is no interference. Ensure 

wiring is installed in accordance with AC 43.13-1B, Chapter 11.  Verify that the power and ground leads 

are correct. 

5.3 

30B

Initial Configuration of the GMX 200 and GMX 200 I/O 

As part of the initial configuration, the GMX 200 functions must be enabled/disabled as desired, external 

data sources must be configured, and miscellaneous options must be set up. 

1.

  Turn on power to the GMX 200. 

2.

  Immediately after the self-test is complete, press line select keys 1, 4, and 6 in sequence before 

pressing any other keys (where 1 is the top line select key, 4 is the fourth key down, and 6 is the 

lower most line select key). If other keys are pressed before or during this sequence, the GMX 200 

will be in the normal operational mode. To enter the install mode, turn off the GMX 200 and start 

again at step 1.  

-

1 

-2 

-3 

-4 

-5 

-6 

Line Select Keys 

Smart Keys 

Function Key 

3.

  Press the FN key until the INSTL function is present. If the INSTL function is not found, restart 

the unit. Carefully press line select keys 1, 4, and 6 in sequence. Do not press any other buttons 

before pressing the 1, 4, 6 line select key sequence.  

4.

  Select the INSTL function by pressing the smart key directly below the INSTL label. The 

Enable/Disable Functions will be the first screen to appear.  

NOTE 

GMX 200 power must be cycled before configuration changes will take 

affect.  All changes made to configuration items are immediately stored 

in the configuration module so there is no need to wait to cycle power 

after making the final configuration change. 

GMX 200 Installation Manual 

Page 5-3 

190-00607-04 

Revision F