I have a amplifier. There is a place to put in a microphone. There is a mic preamp. If I want to not use the mic but send in 'line level' audio I plug in after the preamp. When the plug is in it breaks the preamp connection and sends audio directly into the power amp.
III shows (with out/with) plug. Note the switch position.
VI shows (with out/with) plug. Note the switch position.
IX What is in green is a insulator. It pushes on the switch with out connecting to it. Note on the right the switch is open.
>It is hard to see but......
>I think there are switches on TIP, RING and SLEEVE.
>When there is no jack, the TIP is shorted to ground and the RING is shorted to ground. The SLEEVE switch (I don't understand) the schematic is strange but I think it is shorted when there is not jack. It is not used! So don't worry about it.
>When the jack is in all switches are open.
I think there are switches on TIP, RING and SLEEVE.
>When there is no jack, the TIP is shorted to ground and the RING is shorted to ground. The SLEEVE switch
The term "Isolated" refers to the electrical isolation of the sleeve to the jacks mounting surface. If it is "non-isolated", then the sleeve is electrically connected to the
the mounting surface if the mounting surface is made of a conductive material (such as metal). If it is isolated, then the sleeve is electrically isolated from the mounting surface.
The term "Isolated" refers to the electrical isolation of the sleeve to the jacks mounting surface. If it is "non-isolated", then the sleeve is electrically connected to the
the mounting surface if the mounting surface is made of a conductive material (such as metal). If it is isolated, then the sleeve is electrically isolated from the mounting surface.
The chassis may or may not be grounded, but if it is grounded, then no...the sleeve will not be grounded. The sleeve will be electrically isolated from the chassis.
Some jacks are Metal bushings and others are plastic bushings
It doesn't really matter, the jack will be designed so that the sleeve will either make contact with the mounting surface (non-isolated)
or not make contact with the mounting surface (isolated) when mounted. I have seen applications, however, where a non-isolated jack is isolated
from the chassis with an external fiber bushing.
How can you tell from a schematic which ones do it want , a metal bushing or plastic bushing?
the jack will be designed so that the sleeve will either make contact with the mounting surface (non-isolated)
or not make contact with the mounting surface (isolated).