Garmin APOLLO GX SERIES, Service Manual

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Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 8-19
NAV Board Fuse Replacement
This procedure describes the removal and replacement of the surface mount 3 A fuse on the NAV
board.
See Component Layouts – NAV Board in the Drawings chapter for the location of the fuse.
Parts Required
•
172-0004-012 FUSE 125 V, 3 A, SLOW BLOW, SMD
Removal
1. Before starting this procedure, fill out a Service Data Sheet if this has not already been done. A
copy is located at the back of this manual.
2. Power the unit off and disconnect power from the unit.
3. Remove the chassis cover (see Chassis Cover Replacement procedure).
4. Desolder the old fuse from the right rear corner of the NAV board using a grounded tip,
temperature controlled solder iron, and no-clean solder wick. The fuse is located under the leads
for a capacitor. Avoid damaging these surrounding components.
Note:
See Chapter 2 for soldering requirements.
Replacement
1. Solder the new fuse (172-0004-012) in place.
Note:
See Chapter 2 for soldering requirements.
2. Test the unit to verify proper operation (see Return to Service procedures).
3. Replace the chassis cover (see Chassis Cover Replacement procedure).
4. Using the Service Data Sheet, reenter the customer configuration.