Garmin GTN 625 Pilot's Manual page 203

Visual Approach Selector
This option allows you to select the range at which the Visual Approach
Selector becomes active. When the aircraft is within a specified distance of the
destination airport, the Visual key automatically appears in the bottom left
corner of the map. Any values displaying in this area are obscured while the key
is active. To disable this feature, select OFF.
For visual approach procedures, refer to section 6.13.
Touch to Select
Visual Approach
for Destination
Auto Zoom
With a valid flight plan, the Auto Zoom feature will automatically change the
Map page range depending on the distance to the next waypoint in the flight
plan. If enabled, it will also automatically zoom to the SafeTaxi zoom range
when the aircraft is on the ground. Auto Zoom can be overridden at any time by
manually zooming with the In and Out keys. The Auto Zoom Min selection sets
the minimum range that the display will Zoom in. The Auto Zoom Max value sets
the maximum range the display will Zoom out.
Auto Zoom is re-enabled once one of the following conditions is met:
• A waypoint is sequenced
• The aircraft transitions from "on ground" to "in air"
• A point is reached where the Auto Zoom range matches the manual override
range (known as auto-sync) and will be noted as "Auto" above the map
range value on the map page
• Auto Zoom is toggled off and back on in the Map Setup page
1. While viewing the Map Setup - Map selection, touch the Auto
Zoom key to toggle it On or Off.
2. When Auto Zoom is On the Auto Zoom Min and Max values
will be used.
NOTE: Rotorcraft use a Local Auto Zoom function where Auto Zoom will remain
at the 1,500 ft zoom scale until the rotorcraft is above 400 ft GSL or 40 kts.
190-01004-03 Rev. P
Figure 8-14 Visual Approach Key
GTN 625/635/650 Pilot's Guide
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Appendix
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8-13