FA38 Troubleshooting

Last modified: 2026-08-27

Table of Contents
  1. General resources
  2. 1. One or more cold solder joints
  3. 2. One or more resistors in the wrong position
  4. Request Troubleshooting Support

General resources

One or more cold solder joints

Make sure all your solder joints form shiny tents that cover the entire pad. Reflow any joints that look less than perfect. See Cleaning Up Solder Joints for more on how to identify and fix cold solder joints.

One or more resistors in the wrong position

Double check all the resistor values by their color codes. (You cannot reliably confirm resistor values with a multimeter after they've been installed in the circuit.)

Request Troubleshooting Support

If you weren't able to solve your issue from this guide, you can request email support from one of our troubleshooting experts here: Request Troubleshooting Support.