SUNSHINE LC-AD15 3rd Gen PCB Dual-Light Inspection Instrument

A hairline crack in a trace or a joint that only looks soldered can hide under ordinary bench lighting until the board fails again. The SUNSHINE LC-AD15 third-generation instrument is a dual-light inspection tool meant to make those details easier to see on phone motherboards.

The listing describes focused dual-light illumination for checking small ICs, capacitors, resistors, solder joints and traces before, during and after rework. Despite the word infrared in the name, the text only describes visible inspection lighting. It gives no wavelength, power source, size or contents.

When to put it on the board

• Broken traces near a damaged connector.

• Cracked or dull solder joints after a drop.

• Corrosion or liquid residue around small parts.

• Missing or shifted SMD parts after rework.

Inspection habits

Look over the board before you heat anything, so you know what was already damaged. Check again after soldering for bridges, cold joints and parts that moved, and compare suspect joints with their neighbors under the same light.

Ask the seller what the infrared function does, if anything, before relying on it for diagnosis. As a lighting aid, it pairs well with a microscope on any board bench.