Hartke 3500 power socket question
I had to replace the power socket (where you plug in the power cable with fuses and voltage switch) in the back on a Hartke 3500 head. I got the part from Hartke direct. There are about 11 or 12 slots in the back for cables. I was really careful when moving the wires from the old to the new, but I messed it up somehow and now I am scared to plug it in.
Can anyone take a picture of the inside of the power socket that shows which wires and colors goes where? You might be able to post it here or on an anonymous website, or email.
Incidentially, Hartke does post a diagram on the web, don't remind me, because unfortunately it a) has no color coded wires and b) the wire counts don't match my amp.
Thank you in advance.
May I seriously advise you take the amp to a tech. His bill will be much less than your life is worth.
Wiring up that socket is amongst the simplest of electrical wiring.
Pay the tech. funerals are expensive.
Hartke 3500 power socket question
Been there, done that. I did take it to an amp engineer and he told me that he can make it work, and he did. But without wiring diagram he couldn't figure it quite out. So he set it up so that it just works with 110v. He called Samson, but nobody was able to answer the wiring question. And the published diagram does not have the proper wires.
So I can either buy another one or get a picture from someone.
Not a 3500 B-string.
Looks like an HA4000
Sorry, dumped a few gigs of customer's units a couple months ago. That was the only one I found on my old drive. Good luck anyway. :cool:
Is it an older MOSFET "Transient Attack" 3500 or a HA?
Doable, of course, but can take a while.
I do remember opening mine back in the day, but I do not remember such a magpie-nest of wires, just a regular IEC socket?
Was there simpler, earlier versions of HA3500 power connector?
Or does my memory play tricks on me once again :(.
EDIT: I think tbirdsp there answered my question ;), I probably didn't have a HA.
To answer your question, this is an HA3500. And if you look at the picture above of the HA4000, the power socket seems to be similarly complex. There all in all about 12 pins in the back with the same amount of wires going in and out.
Understanding the socket is not that hard. But what's challanging according to the tech is how to hook up all the wires from the transformer.
He did make it work, but only for the 110v side.
While the voltage switch is convenient for the user on a line frequency power supply, it sure complicates things if replacement of that combo IEC and voltage switch is needed. :) I wonder if he only hooked up one primary winding? The two primaries should be in parallel for 120V.
A tech should:
1) Check what the primary is: Tapped or dual. Simple job with an Ohmmeter.
2) Check the IEC assembly for what terminal does what. Ohmmeter again although I would just a little buzzer I made up from a couple of D cells, a little buzzer from Radio Shack and a couple of test leads.
By sketching out the results it should be obvious what wire should go on what terminal.
If it is a dual primary, as Mr B proposes, you should have four wires going to the IEC block. Your selection choices should be 120V or 240V.
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