🔍 Key Concepts
• Logic probe LED color meanings for HIGH, LOW, and PULSE on standard digital logic probes
• The difference between a steady logic level and a changing (pulsing) signal
• What indication a logic probe usually gives for a short or invalid state
💭 Think About
• For each color (Red, Green, Amber), think about what signal condition a typical digital logic probe is designed to show: HIGH, LOW, or PULSE?
• Consider how a logic probe would warn you that something is wrong (like a short) versus just showing a valid logic level or a pulse.
• Ask yourself which one of the four statements describes a condition that a basic logic probe is least likely to represent with that specific LED pattern.
✅ Before You Answer
• Verify what Red, Green, and Amber each normally indicate on a standard digital logic probe (HIGH, LOW, and PULSE).
• Check whether a short circuit is commonly indicated by having both LEDs on, or by some other indication (such as no light, overvoltage light, or audible alarm).
• Make sure that the description of an Amber LED matches how a logic probe shows a pulsing (toggling) signal rather than just a steady level.