Need Help Figuring out Rotary Switch Pins

Started by JT, February 01, 2004, 09:08:27 PM

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JT

I just finished wiring up one of those MXR100 Boards i bought off of Ebay.  My problem is i am not sure how to figure out which Wire goes where on the Rotary i bought for it. Its a Lorlin 2 pole switchable  2-6 Position rotary. The Poles are not the problem. The Problem is the positon wiring. There are 12 pins on the switch , i am assuming 2 for each position.  How can i tell which Position pins i hook the wires up to once i change the switch to 4 positions? I hooked up the poles and have been poking around trying to figure out which goes where. I think i found POs. 3,4  but having difficulty finding the other 2. Anyhelp on just understanding rotarys would be appreciated muchly Thanks!

Rick

Use a meter. Connect a meter lead to one of the center poles (you don't need the other pole I'm guessing) then take the other lead from the meter and probe all the outside lugs (use the beep function on the meter).
Try to find the first lug if the switch has a stop - then just solder up the pins in a clockwise fashion.

JT

Thanks for the reply.......I am using the Layout PIC from GGG as a guideline which is exactly the same as a real MXR as i have one to compare it to. According to that you use both poles and the wires are not lined up in a row . That is what confuses me. I believe they are wired in pairs across on opposite sides but i could be wrong. My meter skills are a bit lacking. What is the Beep mode? How does it work? Which lead goes to the pole ? Black  or Red?  Thanks!

Dan N

JT, beep mode just checks continuity. One of my meters has a symbol of a diode and a musical note showing that position, my auto ranging is just automatic. It does not matter which color wires go where.



Good luck!

JT

Thanks Dan....I think my meter has an auto one i have to check ...sorry i am a newbie on MMs ..so how does the meter show continuity ? What do i look for on the display? Thanks again!

Peter Snowberg

Hi JT,

Just look for a very low resistance. Touching the probes together will show you what to expect on the display.

You are looking for something that is quite similar to a dead short when you touch the switch contacts that are connected.

I hope that helps.

Take care,
-Peter
Eschew paradigm obfuscation

JT

Thanks Peter.....I'll give it a shot...........On the Plus side i wired the board up and it works great.what i get out of it sounds awesome.....This board was one of the 40 that were for sale on Ebay . There are a handful left on Ebay as we speak. They are the real deal