Garmin APOLLO GX SERIES, Руководство по обслуживанию

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Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 8-15
GX60 & GX65 GPS Board Replacement
This procedure describes the removal and replacement of the GPS receiver board on the NAV board
for the GX60 and GX65.
Parts Required
•
220-0003 NUT, RND, SLOTTED, 4-40 X 3/16" X 3/16"
•
221-0401 SCREW PAN HEAD PHILIPS, 4-40 X ¼" W/SPLIT LOCK WASHER, STAINLESS
STEEL (3 required)
•
428-3014-01 PRINTED CIRCUIT ASSEMBLY, 8 CHANNEL GPS SENSOR C129A
•
664-0042 LOCTITE, 242
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. With the front of the unit facing you, the GPS board is on standoffs on the NAV board on the right
inside the chassis.
5. Remove the cover from the GPS board by lifting it by the four corners.
6. Remove the three screws and the slotted nut holding the GPS board.
7. Carefully lift the GPS board up and off the NAV board to disconnect it from connector J1.
8. Disconnect the antenna connector from the GPS board.
Replacement
1. Connect the GPS antenna cable to the new GPS board.
2. Place the GPS bottom shield (306-0010-00) with standoffs on the bottom of the GPS board.
3. Carefully plug the GPS board into J1 on the NAV board.
4. Secure the board with the three screws (221-0401) and the slotted nut (220-0003). Apply a drop
of Loctite (664-0042) to the slotted nut before re-assembly.
Torque screws to 5.0 lb.-in
.
Torque
the slotted nut to 2.9 lb.-in
.
5. Reinstall the cover (306-0011-00) for the GPS board.
6. Test the unit to verify proper operation (see Return to Service).
7. Replace the chassis cover (see Chassis Cover Replacement procedure).
8. Using the Service Data Sheet, reenter the customer configuration.