12 complete symptom paths42 guides and 60 questions in each1,460 Grade A articlesOne searchable, connected knowledge library140 official sourcesEvidence context with explicit limits
Observatory question

What should I photograph before repair?

Capture the whole area, symptom edges, reference scale, nearby components and any meter position.

?question

Capture the whole area, symptom edges, reference scale, nearby components and any meter position.

Useful answer

Capture the whole area, symptom edges, reference scale, nearby components and any meter position.

What to record

Write down the date, location, trigger and any change since the previous observation.

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