Hello,
I’ve got a pair of audio engine desktop speakers but don’t have the original power supply. I can get one from their website but want to test these before spending 30-40 dollars I’ve got a variable power supply that I can use but I’m not sure what pins to use? It’s a 4 pin mini din which after a google looks pin 1 is v+ and maybe v- is pin 2 ? But im not sure
I’ve got a pair of audio engine desktop speakers but don’t have the original power supply. I can get one from their website but want to test these before spending 30-40 dollars I’ve got a variable power supply that I can use but I’m not sure what pins to use? It’s a 4 pin mini din which after a google looks pin 1 is v+ and maybe v- is pin 2 ? But im not sure
I see diagrams illustrating different ways to wire +ve and -ve.
Best remove the panel and look for wiring clues on the reverse of the socket.
Best remove the panel and look for wiring clues on the reverse of the socket.
No way to tell from the markings.
There may be polarized capacitors inside, connected to the pins.
There may be polarized capacitors inside, connected to the pins.
I removed the panel and cut away what looks like some sort of foam rubber and can see the back side of the switch somewhat. Here’s a couple pictures
Thanks for the help though
Thanks for the help though
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Here’s what I propose,
This is just to test the speakers, to see if I like them for use on my desktop. They were free , so if I like them I’ll probably just buy the ac adapter from audio engine
Thanks guys
This is just to test the speakers, to see if I like them for use on my desktop. They were free , so if I like them I’ll probably just buy the ac adapter from audio engine
Thanks guys
Your speakers need THREE wires:+17.5V, -17.5V and Ground
Your pictures shows TWO connected.
It will NOT work that way.
Does your PS have dual, symmetrical outputs?
You are hiding the most important labels, the ones on the output banana terminals.
Please search and post your PS manual.
Your pictures shows TWO connected.
It will NOT work that way.
Does your PS have dual, symmetrical outputs?
You are hiding the most important labels, the ones on the output banana terminals.
Please search and post your PS manual.
I hooked up the ground to pin 3 and it still didn’t work.
https://data2.manualslib.com/pdf6/1.../tp3005t.pdf?de1798a4bda658419b8525057e6dc140
This is not dual output
https://data2.manualslib.com/pdf6/1.../tp3005t.pdf?de1798a4bda658419b8525057e6dc140
This is not dual output
Do you have any stuff lying around that you might be able to rig up for a test? Like an old ATX power supply or a couple of laptop bricks?
Thanks rayma
Your input is always useful
Leadbelly,
While I didn’t appreciate your previous response im surprised you offered something useful this time. I may have something laying around that might work
Thanks
Your input is always useful
Leadbelly,
While I didn’t appreciate your previous response im surprised you offered something useful this time. I may have something laying around that might work
Thanks
A very cheap and simple improvised +/-16V supply can be built out of a plain vanilla 12VAC transformer, any size, two diodes , 1N5402 comes to mind, and 2 electrolytics, from 1.000uF up.
It will have some ripple so not a definitive supply by any means but functional enough to test whether that plate amp actually works or not.
IF it does, then it's worth getting the original one, knowing it is not wasted money.
It should be buildable with available junkbox components.
It will have some ripple so not a definitive supply by any means but functional enough to test whether that plate amp actually works or not.
IF it does, then it's worth getting the original one, knowing it is not wasted money.
It should be buildable with available junkbox components.
Here's a schematic of a dual PS employing a transformer with centre tapped secondary, and a bridge rectifier:
How about buy another TP3005T for experimentation. Although is a bit more expensive, it is worth the money! It can be used for DIY projects in the future, paired to form a +/- 0 to 30V variable dual output power supply or connected in series to form a single output power supply up to 60V/5A.
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Circuit will work but raw voltage will be around +/- 16V and ripple will be high.