Originally Posted by JA90
Can someone please tell me, what are these 3 red circled diodes?? I'm planing to change them, but I don't know exactly what is that model, so please help.. And what is the voltage or (again) model of this regular blue circled LEDs?? Cause I know that there are a different voltage models..
Please someone answer as soon as possible, so I can do that mod before the hollyday season
While I do not have a multimeter handy to test the voltages for you, those red circles are also LEDs.
Those are SMD LEDs.
If you have a multimeter, just turn the rig on (or put power to that power board), and positive one side, negative other, and it will read out.
Originally Posted by ultima31
If it's a ground wire, what is the interest of this ground wire?
If I change the ubs3 internal wire by another, will be there a problem or not?
The usb3 internal wire that I can buy on site don't have this ground wire. I don't understand this difference.
I don't understand why these ubs3internal wire have a ground wire and usb3 internal wire available in online shop don't have ground wire. If anybody can explain me, thanks.
A ground wire is to ground the electronics.
It's hard to explain if the concept is not understood.
Basically, if there were static electricity to be induced on that power board, the possibility of shorting it out is much more significant.
However, if there's a ground, there's a way for that static electricity to 'exit' the board, and to safely be removed.
Without a ground wire, there is pretty much 'floating' electricity in that area.
So say you had two power supplies without a ground, you'd have 'floating' electricity on the chassis of the power supplies, and if you were to touch the chassis, since YOU are grounded (feet touching carpet, carpet touching earth, etc), the electricity can potentially travel through you.
This is how electrocutions happen.
But since we're only dealing with small amperages and voltages, don't be worried of dying.
All connections will have ground, it's not a huge deal if it's not replaced, just be sure you're not planning on vacuuming and then touching that bare metal shortly after.Edited by rawfuls - 12/24/12 at 1:05pm