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PostPosted: Wed Mar 13, 2019 4:44 pm 
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Joined: Tue Jan 04, 2011 8:16 am
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Location: Connecticut
Hey guys, I've built a signal tester, but could use some guidance or tutorials on how to use it, how to troubleshoot, etc. Would appreciate your go-to learning places.

I've built a few clunkers over the years, and often set them aside to figure out another day. We'll, I've accumulated quite a pile! Lol. I'm terrible at troubleshooting. I have multimeters, and now a decent test setup with a guitar, bench amp, and my test probe. Now I need to understand how to use them to help me figure out where the problem is.

Thanks!

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PostPosted: Thu Mar 14, 2019 10:41 am 
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Location: Moses Lake, WA
http://byocelectronics.com/signaltesterinstructions.pdf

It shows you how to hook it up on the last page.

Aside from that, you would need to know how to read a schematic, and have a map of the PCB so that you can trace out the signal path. For example:

1. Find the input on the PCB. Touch it with the probe. Strum the guitar.
2. Find C1 input capacitor. Touch it with the probe. Strum the guitar.
3. Find R1 (the first resistor in series in the signal path). touch it with the probe. Strum the guitar.
4. Find C2 (the next cap in the signal path). Touch it with the probe. Strum the guitar.
5. Find R2 (the next resistor in the signal path). Touch it with the probe. Strum the guitar.
etc.

Do this till you find the spot where you guitar signal dies.

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Please do not PM me. email is prefered. keith@buildyourownclone.com


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PostPosted: Thu Mar 14, 2019 11:07 am 
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Think of the signal tester as a "portable output jack." Wherever you touch the probe, if there's an audio signal present there, it will send that signal to your amp or other output device.

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