Furuno LH-5000 Operator's Manual page 21

LH-5000 Operator's Manual
Step 2 Referring to the figure below, place heat shrink tubes on the wires,
and then solder the correction point.
Step 3 Move the heat shrink tubes to the soldered correction, and then apply
heat to the tubes.
Step 4 Secure the cable with insulation tape.
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Installation