How am I supposed to connect this potentiometer to the PCB?
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1\$\begingroup\$ You need to use wires. \$\endgroup\$– SerodisCommented Dec 8, 2014 at 5:26
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\$\begingroup\$ But which terminals do I need to connect? As far as I can see, there are 4 spaces on the PCB for connecting the potentiometer and I can't figure out which to connect with the potentiometer. \$\endgroup\$– Rahul SankarankuttyCommented Dec 8, 2014 at 5:28
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\$\begingroup\$ That depends on the design of the circuit. Depending on what you connect where you're going to get different resistances. \$\endgroup\$– SerodisCommented Dec 8, 2014 at 5:30
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2 Answers
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I see five holes for connections to the pot.
There is one hole in the center of the pot drawing on the PCB - that hole is for the wiper of the pot, and should be connected to the center terminal of the pot.
The board has two holes for each end of the pot - probably the board designer had two different parts in mind when he laid out the board, and made provision to use either one. The two outer terminals on your pot connect to the two outer holes in the board.
The pot you have is meant to be mounted to a panel using the bushing around the shaft.
answered Dec 8, 2014 at 5:37
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1\$\begingroup\$ I can see six holes. The silk proposes how to mount a pot of the right package, but you can also mount the same part shifted 0.2" down. \$\endgroup\$– sweberCommented Dec 8, 2014 at 6:22
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There are two possible holes on the PCB for each pin as you can see in the picture, use any or both if you like. Also pin 1 and 3 can be swapped but 2 from PCB need to be connected to 2 on the potentiometer.
answered Dec 8, 2014 at 23:18
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\$\begingroup\$ Note that if you have the 1 and 3 the other way around it'll still work, but you'll have to turn the potentiometer the other way compared to the stock pot. \$\endgroup\$ Commented Dec 9, 2014 at 1:11