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Old 27th July 2011, 11:19 AM   #1
gychang is offline gychang  United States
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Default 3.5mm panel jack hookup

I am having difficulty with hookup on my t-amp with this panel jack (3.5mm).

I asked partsexpress and their answer is:

The #1 terminal (short silver) is Tip (left channel +), the #2 terminal (gold/copper) is Ring (right channel +), and the remaining terminal (long silver) is Sleeve (ground/common), in regard to standard TRS wiring.

Is this correct?, I thought otherwise.

thanks.

gychang
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Old 27th July 2011, 11:29 AM   #2
Mooly is online now Mooly  United Kingdom
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Sounds reasonable... the long one is "ground" and should connect to the main body of the socket.

As to which is left and right of the other two... well, there are only two choices

Try it with headphones and a DVM on ohms to "click" the phones and identify L and R
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Old 27th July 2011, 11:34 AM   #3
gychang is offline gychang  United States
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Quote:
Originally Posted by Mooly View Post
Try it with headphones and a DVM on ohms to "click" the phones and identify L and R
I am mounting this on my amplifier case (instead of RCA inputs), being relatively new to electronics not sure what DVM means...
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Old 27th July 2011, 11:41 AM   #4
Mooly is online now Mooly  United Kingdom
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DVM is Digital Multimeter An analoge one will do just as well.

You can't really go wrong. The long terminal is ground. That is the same as the outer part of the RCA sockets. The other two pins are the left and right. If you get those wrong then all that happens is the channels are reversed... in which case swap them over.
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Old 27th July 2011, 11:43 AM   #5
Mooly is online now Mooly  United Kingdom
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Just to add... using a meter on ohms means there is a small voltage at the probes of the meter. It's enough to make a headphone "click" when you put it across the connections.
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