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#Post#: 143--------------------------------------------------
Welcome to Fall 2026 Troubleshooting Forum
DIR By: Timothy Brown
Date: August 31, 2026, 10:17 am
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Dear class,
Welcome to the troubleshooting forum for this semester's
ECEN3314 lab. You are encouraged to use this forum to help each
other and to learn proper documentation for debugging, and also
to investigate how useful AI is with helping you debug your
circuits.
You can get +5% extra credit on any properly formatted question
or answer post, provided it meets all these conditions:
Forum Questions: Forum questions must consist of four elements.
First, a photo of your oscilloscope waveform that you want to
troubleshoot. Second, a close up photo of your bread board where
all connections can be identified. Third, a comprehensive photo
showing your breadboard and its connections to the power
supplies, function generator, and oscilloscope signal and ground
connections. Third, a detailed description of what you are
trying to do, what you expect to see, what you actually saw, and
how you intended for the circuit to be connected.
Ex: "I am trying to build a non-inverting op amp with a gain of
10x in Lab 1. However, the oscilloscope waveform shows that the
output waveform is only 5x as large as the input. I have the +12
V of my power supply connected to pin 8, the -12 V power supply
connected to pin 4, and its ground connected to pin 3. My
function generator signal input connected to pin 3, my FG ground
connected to pin 2 through the 1 kohm resistor. I have the Ch1
signal connected to pin 3 and the Ch2 signal connected to pin 1,
and both grounds are connected to pin 3.
[photo] [photo] [photo"]
Forum questions must receive at least two valid responses to
earn extra credit. You may provide an answer to your own
question as long as it has one other response. If you as the
original poster and another response list the same correct
answer, priority will be given to the other response. Don't post
problems you already know how to answer to get extra credit.
Forum Answers: Forum answers should begin with a statement of
whether or not you used AI. Afterwards, suggest a solution and
why you think it will solve the problem.
Ex.: "I did not use AI for this answer.
Did you check if you have both the +12 and -12 parts of your
power supply turned on and connected to your circuit. Maybe if
you are missing half of your power supply you may be missing
half of your gain?"
Forum answers must be selected as correct by the original poster
(OP) to receive extra credit.
See below for more information on the forum from Dr. Hu
Happy bug hunting!
Best wishes,
Dr. Brown
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Dear students and TAs:
This is the debugging forum for ECEN 3314. We started this forum
back in Spring 2025 with Saif as the TA. We want to continue
this forum as a lab knowledge accumulation, exchange, and
troubleshooting hub.
Some notes:
Circuit Debugging only. Not homework or other discussions. Use
Canvas instead.
Simulation and measurement bugs are both welcome.
Protect your privacy. This is a commercial forum. Your posts may
be used to train unknown AI models without your permission.
Post anonymously or not at your own risk.
Good practice in the past
Upload images, logs, and any other context information to help
others troubleshoot
Known risks:
When you feed this forum as additional context to your own
chatbot, watch out for factual errors propagating from previous
posts
For example, your chatbot may "learn" the wrong tip from a
factually incorrect comment made by someone in the past
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