ENGR201 Lab 4 2019 Fall
Lab 4 Soldering
Name: Jesse Duran
Email: JIDuran@fortlewis.edu

1. Lab 4 Soldering
2. Introduction:
The purpose of this lab was to familiarized students with soldering and reading circut schematics. Students will then apply these practiced skills to soldering a SMT to the pads on a PCB. These skill will be needed in subsquent labs when designing the PCB for the robot car and cons.

3.

Materials

Temp controlled Soldering iron

Jumper cables

Rosin core solder

Flux

Photo resistor

1k resistor

10k resistor

10k Potentiometer

9V voltage source

741 op. Amp.

PCB

SMT resistor

IC socket

LED

Methods:
A circut was built following the diagram provided. It was then tested where the result was the power status of an LED. Then a SMT was solderd to a PCB then desoldered.

4. Results:


Video 1. LED turning on and off by rotating 10k Potentiometer.


Video 2. Soldering SMT to PCB


Video 3. Desoldering SMT from PCB

5. Discussion
Once all the components were mounted on the circut board the trouble shooting process was conducted by following the outside circut for correct connections then following inner circuts to ensure a proper connection.