190-01007-01
GTN 725/750 Maintenance Manual
Rev. 5
Page iii
INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations (EAR)
issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and which
may not be exported, released, or disclosed to foreign nationals inside or outside of the United States
without first obtaining an export license. The information in this document is subject to change without
notice. For updates and supplemental information regarding the operation of Garmin products visit
.
GENERAL SAFETY PRECAUTIONS
The following are general safety precautions which are not related to any specific procedure and therefore
do not appear elsewhere in this maintenance manual. These are recommended precautions personnel
should understand and apply during the many phases of maintenance and repair.
KEEP AWAY FROM LIVE CIRCUITS
. Maintenance personnel shall observe all safety regulations at
all times. Do not replace components inside the equipment when potentially lethal voltages are present.
Turn off system power before making or breaking electrical connections. Regard any exposed connector,
terminal board, or circuit board as a possible shock hazard. Components which retain a charge shall be
discharged only when such grounding does not result in equipment damage. If a test connection to
energized equipment is required, make the test equipment ground connection before probing the voltage or
signal to be tested.
DO NOT SERVICE ALONE
. Personnel shall not under any circumstances reach into or enter any
enclosure for the purpose of servicing or adjusting the equipment without immediate presence or assistance
of another person capable of rendering aid.
