Removeing the groundswitch in a Fender ab763

[Kazooman]

Not A Chance on the TP Debate

Hi Enzo:

I'm not going there with the TP debate.

I just noticed you are in Lansing. As you might guess from my screen name I am over in Kalamazoo. Good to know that there is someone close by who can help out when I get in over my head!

[Enzo]

Whatt!!! You hang it on something?!

Well, I used to read it first, but the Sears folks quit sending it to us.

[Gtr_tech]

Hi Enzo:

I'm not going there with the TP debate.

I just noticed you are in Lansing. As you might guess from my screen name I am over in Kalamazoo. Good to know that there is someone close by who can help out when I get in over my head!

Shouldn't that be "K-Zooman" then? I thought you were a kazoo enthusiast....

[Kazooman]

Well.....

Yeh, We all LOVE the kazoo. Such a great instrument. I prefer it to a piece of waxed paper and a comb, but that's my choice.

But, actually, as they say, there really "Is A Kalamazoo".

Just look up the history of Gibson Guitars.

The Soul Of Music Resides In Kalamazoo

[überfuzz]

I promised a picture of the power wiring. I have no gut-picture but a nice gif for you folks.



Edit, correct gif of power wiring.

[Kazooman]

A Comment

I think that you want the fuse and switch to be in the same (hot) lead.

I am not certain where you are from, but I am assuming that the brown wire in your drawing is the hot side and the blue is the neutral (European wiring). As drawn if something goes wrong and the fuse blows you will still have the hot lead providing power into the transformer. Shorts to ground would still be conducting current and if you were to stick your finger in the wrong place you would be too!

Put the fuse in series with the switch on the hot lead. The consensus here is fuse first, switch second (not the way I drew it). The hot lead goes to the lug on the end of the fuse holder, not to the sleeve. Then if the fuse blows there is also no power going into the amp.

[überfuzz]

Oh sorry, I'm mixing up the lead and zero. (Thats what we call the leading wires in Europe - Sweden.) I'm attaching a gut-picture of the power cord wiring.

Brown goes to tap on fuse.
Blue goes to power switch.
Green goes to ground.

I think it would be easier to understand your explanation in gif-format. Said by a person using electrician English very sparsely.

Here's the wiring as it is right now.

[Kazooman]

I Hope This Helps

This is what I was trying to say:

[überfuzz]

I see your point...

The thing is, if the fuse goes there won't be any closed circuit, hence, no power to the PT. With the power switch off, there won't be any closed circuit. In other words no power to PT. Right..?

[Kazooman]

Circuit

With the switch off there will be no power to the PT. With the switch on there will be power to the PT. In from the brown lead wire, through the fuse, through the switch, through the PT, and back to the blue zero wire.

If the fuse blows it is the same as turning off the switch. There will be no power to the PT. It will still be connected to the blue zero, but that is safe. The brown lead will be disconnected from the PT.

[überfuzz]

Naa, it's nicer to have good solid places to connect wires. Your way leaves two wires without a good place to hook them up.

[Kazooman]

I Am Done

OK, don't follow my way of hooking up the wires. Hook them up in any way you choose. I have tried to help you figure out how to install your new cord, but it is clear from your responses that you are absolutely convinced that I have no knowledge whatsoever about the subject. Perfect!!!! Disregard anything I have said previously to this message. I disavow any implications of applying any of the suggestions I provided in previous posts.

Take your amp to a qualified service center and have them install the new cord.

Good luck!

[überfuzz]

Ops, I didn't mean to offend you dude.

Psst, don't get so frustrated just because I disregarded your suggested wiring. Your input really helped me.

[acorkos]

Naa, it's nicer to have good solid places to connect wires. Your way leaves two wires without a good place to hook them up.

you can use the lugs on the unused ground switch as a connection point to join wires....look at the pic again: