Learning path

Learn diagnosis as a measurement discipline.

The path progresses from safe instrument use to boot-stage localization and evidence review. It avoids memorizing universal voltages that are actually model-specific.

Level 1 · Measure safelyground reference · diode mode · resistance · voltage · current limitMethod →
Level 2 · Read behaviorpre-prompt · trigger · stable draw · cycling · charging responsePatterns →
Level 3 · Follow sequenceinput → AON → clocks → reset → storage → OSBoot atlas →
Level 4 · Verify a caseapplicability → sources → confirmation tests → resultEvidence review →

For working technicians

Use compact workflows, model applicability and next-test links during bench work.

For students

Start with methodology, then compare current and boot evidence before studying cases.

For institutes

Use the same canonical records for teaching and bench assessment; distinguish working evidence from verified records.