Fuse Location? - Stereo 1990 270

[Budds'Outlet]

In the process of installing a new stereo in our 1990 270DA I must have shorted out the constant power feed to the stereo. I had the wires connected and unit was working but when I started to insert it into the slide in bracket it quit. A little meter testing and I determined that the green wire feeding the constant power (aka memory, yellow wire on the deck) was dead, no juice.:huh:


I've tried tracing the wire aft but it goes into a wiring bundle and gets lost. I've checked all the fuses in thefuse boxes and circuit breakers but nothing there is blown. I'm wondering if this has an inline fuse buried somewhere. Does anyone have any ides on this?

 

[CV-23]

Did you check the Breakers in the engine/bilge area?

 

[Budds'Outlet]

Thanks for the response CV-23. I have pushed on all the red breaker buttons in DC box in the engine room and none of them seemed to reset. My next plan is to take the cover off of this box and trace the wire into it. I'm going to test the continuity of this wire from where it powers the stereo and where it goes into the box. I'm going to disconnect the batteries before taking the cover off just to be safe.

I know some things like the red dot heater were installed by the dealer using an inline fuse. I'm thinking I may have blown an inline fuse but have no clue where it might be.

 

[Loneranger]

I have a breaker at the helm for my stereo. No switch. Just a breaker.

 

[Lazy Daze]

Another place to check for an inline fuse is right off of one of the batteries.

 

[Loneranger]

You know I forgot, when I recently pulled my radio to replace there was an inline fuse close to the radio itself. It will not be going back when I install the new radio.

 

[Budds'Outlet]

Well I've chased the green wire using an ohm meter all the way from where the stereo mounts just above the dinette on the port side, back into the engine room, all the way to the transom, all the way across the transom and now part way up the starboard side of the engine room. All of this has been in various wire looms. I can only suspect that it is headed for the helm and the breaker Loneranger is talking about.

I had looked around under the helm where all the breakers are mounted and I did not see a green wire there but now I'll look again. Also, I am going to check for voltage at the stereo breaker. But, that's enough for an old man tonight. Thanks for the suggestions. It keeps my courage up.

 

[Lazy Daze]

Good luck with it.

Nothing was coming off the batteries? You might have the bilge pump power coming from a battery , too.

Could the wire you're tracing be going to the battery selector switch? It could be getting it's constant supply from there.

 

[Budds'Outlet]

Well I never was able to trace the green wire to a connection with anything. I lost it as it went through an inaccessable area after leaving the engine room.

I finally gave up and cut the wire back in the engine room and routed it to a spare fuse slot on an auxilary fuse panel. I taped off the end of the green wire and let it sticking out of the wire loom so that if the wire ever got juice again it would not cause a short and start a fire.

All this work and now I've got a great stereo in the boat. I put a couple of hundred songs on an SD card and plugged it into the SD slot in the stereo. Wahoo, we are ready to rock!