Quickie 1.1 A side no resistance

lnperron · 1520

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Offline lnperron

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on: August 15, 2014, 06:14:49 AM
Hi everyone I need some help.  I am getting 0 resistance at 11 and 12 on the selector switch, A1, A7 and at terminal 4.  B side checks out fine at 1.07.  I have gone over the wiring several time and checked everything I can think of. Any ideas?


Offline fullheadofnothing

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Reply #1 on: August 15, 2014, 07:20:03 AM
What do you measure with one probe on terminal 4 and one on terminal 5?

Joshua Harris

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Offline lnperron

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Reply #2 on: August 15, 2014, 09:47:41 AM
4 to 5 I get nothing. B side I get 1.068


Offline fullheadofnothing

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Reply #3 on: August 15, 2014, 09:51:55 AM
One of those terminals does not have a good connection. Resolder both and make sure that the leads of the resistor are making firm physical contact with the terminals.

Joshua Harris

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Offline lnperron

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Reply #4 on: August 15, 2014, 10:58:23 AM
started from scratch on terminal 4.  Cleaned everything and I still get the same result.  The resistor checks out fine.


Offline fullheadofnothing

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Reply #5 on: August 15, 2014, 11:20:16 AM
So you are saying if you fully remove the resistor from the circuit, it measures 1.07KΩ. When it is soldered between two terminals, it measures "nothing?" Can you clarify what nothing is? Do you mean 0Ω (like when you touch the probes together) or over limit (like if your probes aren't touching anything). 

Also, please post pictures of your build so we can try to see what might be going on?

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Offline lnperron

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Reply #6 on: August 15, 2014, 02:28:18 PM
I get 1.07 on the B side 9 to 10. on the A side I get what my meter shows at 1. which is what I get when the probes are not touching.


Offline lnperron

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Reply #7 on: August 15, 2014, 02:33:34 PM
And yes 1.07KΩ
 :o


Offline Doc B.

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Reply #8 on: August 16, 2014, 05:03:33 AM
That means you have a bad solder joint.

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Offline lnperron

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Reply #9 on: August 16, 2014, 06:27:01 AM
OK I got this problem corrected. As I expected stupidity on my part (wrong resistor).  Anyway resistance is correct now. Thanks for the assistance.


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