In the event it helps someone else out...
OF course with ALL POWER DISCONNECTED AND OFF to the boat...
And of course (dislaimer) I am not responsible if you do something stupid...
I had a chance to start this changeover yesterday - only had time to do the DC main (LED) and the AC main (NEON) ...took only 5-10 mins per and these were my first 2 - the rest should go more quickly...
I cut the leads on the existing bad incandescent indicator assembly an inch from the fixture, stripped the ends of wires remaining connected to the switch and bus bar, and after inserting the new fixture through the face of the panel and tightening down the nut on the new LED (DC) or Neon (AC) fixture, connected the appropriate wires together with an 18-22 gauge crimp butt connector. Easy and quick, and allowed me to leave the existing spade connections in place.
Pic attached to show the spagetti mess before...AC main indicator assembly is just below the round QC sticker - you can mostly make out the 18 gauge black wires connected to the switch obn one side and the bus bar on the other.
Hope this helps.
That said, once I finish this job, I will have left over, approx 15 red DC, and 5 yellow AC, working incandescent indicator bulb assemblies. If you have burnt out bulbs like I did, and cannot find replacements as I could not, I may be able to help you out. PM me if you are interested.
Dave
If my memory serves, the indicator lamp wires have spade lug connectors on their ends that are attached on the switched side of the breaker and on the negative buss. I now need to replace some of the lamps that have now burnt out and will probably use the Radio Shack solution Claude refers to.
Where connected new wiring to the breakers, I used the appropriate sized crimp-on connector instead of soldering one on a wire end.
Because of my wife's declining eyesight, I also replaced all my 12 volt cabin overhead lighting with wood and brass halogen units (would now use LED ones). For each connection I used a plug and socket crimp-on, and porarized them so that the female was always the "hot" side feeding the fixture.
I adapted a 120 volt halogen picture frame spot to shine down onto the sink area. I also replaced the fluorescent units with halogen under-cabinet units with the transformers removed and hooked to the 12 volt circuit where located.