Garmin GFC 600 Manual - Page 23

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During power-up of the GFC 600 system, an initialization splash screen displays on the GMC 605 Mode

Selection Panel. The splash screen displays the following information:

• GFC 600 title

• Electronic Stability and Protection (ESP)

• Software version number

When this information has been reviewed, the pilot is prompted to continue (CONT) by pressing the HDG

key and the GFC 600 enters preflight test.

During the preflight test the GMC 605 will display PFT in the Message Window. LED fault lights on the

GMC 605 autopilot mode panel cycle through a test sequence, three amber lights followed by three red

lights, then extinguish if the preflight test successfully passes. The autopilot disconnect tone sounds at

the completion of the preflight test. If the GFC 600 passes preflight test, the display on the GMC 605 will

be blank and all LED fault lights extinguished.

If the GI 285 remote autopilot mode display is installed, it will cycle through an annunciator light test during

the GFC 600 preflight test. All lateral mode annunciations will illuminate amber, followed by AP, YD, TRIM

annunciations in amber, all vertical mode annunciations illuminated amber, and finally the AP, YD, and

TRIM annunciations in red. If the preflight test passes, all annunciations on the GI 285 will extinguish.

Autopilot/Flight Director mode annunciations on the GMC 605 displayed in bold fonts indicate active

autopilot/flight director modes. Armed modes are indicated in smaller fonts. Normal mode transitions will

flash inverse video for 10 seconds before becoming steady. Abnormal mode transitions will flash for 10

seconds before the default mode is annunciated as the active mode. Default autopilot/flight director modes

are Roll (ROL) and Pitch (PIT) modes.

If installed, active modes are indicated on the GI 285 Annunciator Panel in green, and armed modes in

white. Abnormal mode transitions will flash amber for 10 seconds before the default mode is annunciated

as the active mode in green.

The GMC 605 display panel is divided into three sections. From left to right the sections are, lateral

autopilot modes, vertical autopilot modes, and the message window.

190-02011-11 Rev. 2

Section 4 – Normal Procedures

GMC 605 Autopilot Mode Control Panel

GFC 600 Autopilot Installed in Piper PA-46-310P/350P

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