How to Choose a Water Leak Sensor for PCB and Control-System Designs
August 2, 2026
A water leak sensor works reliably only when probe corrosion, false alarms, placement, debounce, and shutoff logic are planned before release.
PCB Troubleshooting & Testing
Troubleshooting and testing are critical steps in ensuring the functionality and reliability of your PCB. This category covers the techniques and tools used for diagnosing and resolving issues in PCBs, including signal integrity problems, power supply noise, and common design flaws. Learn how to use logic analyzers, oscilloscopes, and other diagnostic tools to identify and fix problems in your PCB designs before they reach production.
How to Choose an SMT Fuse Without Creating a New Failure Point
July 13, 2026
An SMT fuse can protect a PCB only if its interrupt rating, I2t, package, and placement match the real fault path. This guide explains how to choose, place, inspect, and troubleshoot a surface-mount fuse in power-input and subsystem designs.
What Multimeter Symbols Actually Mean When You Are Troubleshooting a Board
July 8, 2026
Multimeter symbols only look obvious until a wrong dial setting leads to a bad board diagnosis. This guide explains continuity, diode, resistance, AC, and DC symbols in a practical PCB troubleshooting context.
Can You Reflow a PCB With Solder Paste and a Heat Gun Without Ruining It?
July 8, 2026
You can assemble your own PCB with solder paste and a heat gun, but only when the board, paste volume, and airflow control all fit a prototype-friendly process. This guide explains when the method works, what usually goes wrong, and how to avoid preventable rework.
Through-Hole Soldering Tricks That Prevent Lifted Pads and Weak Barrels
July 8, 2026
The best through hole soldering tricks come down to controlled heat, proper solder volume, and better inspection of plated barrels. This guide explains how to avoid weak joints, lifted pads, and rework damage on real PCB assemblies.
ATE in PCBA Testing Works Best When Functional Coverage Is Defined First
July 4, 2026
ATE can accelerate PCBA testing, but only when the fixture, measurements, and pass-fail logic are built around real failure modes. Functional coverage has to be defined before automation is worth the effort.
Should You Clean a PCB Assembly After Soldering? Start With Residue, Voltage, and Coating Risk
July 4, 2026
PCB assembly cleaning should be decided by flux residue, electrical sensitivity, humidity exposure, and coating risk. A clean-looking board is not always safe, and washing the wrong assembly can create new reliability problems.
How to Solder Surface Mount Components Without Turning Rework Into Damage
July 4, 2026
Surface mount soldering works best when package choice, heat balance, flux control, and inspection are planned together. This guide explains how to solder SMT parts without creating solder bridges, lifted pads, or hidden rework damage.
How Reverse Engineering Extends the Life of Industrial Control Boards
June 24, 2026
PCB reverse engineering helps maintenance teams recover lost schematics, reproduce obsolete control boards, and keep industrial equipment running longer.
How Furnace PCB Boards Work and Why They Fail
June 24, 2026
A furnace PCB board controls ignition, relays, safety inputs, and blower timing. This guide explains common symptoms and safe diagnosis basics.