78081g503.ic655 [work] | Safe - 2025 |

| Test | Procedure | |------|------------| | Identify GND | Probe the largest copper pour or negative terminal of input capacitor | | Find VCC | Look for a pin connected to wide trace or ferrite bead from power input | | Apply safe voltage | Start with 3.3V or 5V via current-limited supply | | Check outputs | Scope for clock, logic levels, or enable pins |

: How the item is used within a larger system. 78081g503.ic655