Troubleshoot
Decision Trees Pick a symptom and answer one question at a time. These mirror the course methodology — verify before you replace, and treat solder joints, vias and the test fixture as suspects equal to the part.
⑃ Board is completely dead Powered up, no outputs, no signs of life.
⑃ A power rail is missing or sagging One regulator output reads zero or below tolerance.
⑃ A rail is shorted or drawing excessive current Current limit trips, supply hiccups, or a rail reads near a short to ground.
⑃ Rails good but no clock or no boot Power is fine yet the digital board shows no clock or never comes alive.
⑃ Board is stuck in reset Reset never releases, or the board keeps resetting.
⑃ Triage an ICT failure ticket A Teradyne in-circuit test ticket flags a part out of limits.
⑃ Analog stage outputs the wrong value An analog channel reads offset, clipped, or pinned to a rail.
⑃ Intermittent fault that comes and goes The board fails sometimes, often passing at the bench.