Tip & How-To about Lowrance LCX-19C GPS Receiver

Lowrance LCX power up problem

On Lowrance LCX-19 and I would assume other LCX series units.
The T3 Transformer shorts out and when the sonar kicks in it causes the unit to go over current and will eather cause the unit to reset and start again or blow the fuse. If you have the ability you can re-wind the transformer.

The primary is 46 turns of 24awg inverter duty magnet wire,
The secondary is 164 turns of 26awg inverter duty magnet wire.

Be sure to keep the same winding direction as what you take off as it may be phase sensitive. Be sure to use mylar tape between the primary and secondary windings.

Just a note this board has very heavy power planes and is very hard to solder/de-solder on.

If you have any questions or need help you can contact me at info@jtechnicalservices.com

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