Knowledge check Maintenance, Replacement & Field Troubleshooting
12 questions in pool · live exam draws 5
H03
Q1 multiple-choice · cadence-quarterly Which item is part of the QUARTERLY (not weekly or monthly) maintenance cadence?
Source: H03 §1.
Explanation: Torque check is quarterly. Weekly = visual + test capture. Monthly = flash counts. Quarterly = torque, calibration, spare parts audit. Annual = comprehensive review + PhotoRobot service visit.
Q2 multiple-choice · strobe-safety-discharge What’s the LETHAL step in strobe tube replacement that must NEVER be skipped?
Source: H03 §2.
Explanation: Strobe capacitors hold lethal voltage even after power-off. Discharge wait is non-negotiable; skipping has caused fatalities historically. The other items are important but not lethal.
Q3 scenario · amber-buzz-heat A Control Unit gives audible buzz with slight heat smell during operation. Right response?
Source: H03 §6 (failure modes table).
Explanation: Audible buzz + heat + smell = internal failure developing. Don’t experiment, don’t open the enclosure (warranty + safety), don’t continue using. Escalate immediately.
Q4 scenario · encoder-drift-recurring Encoder calibration was just run successfully. Two days later, drift symptom appears again.
Source: H03 §5.
Explanation: One-time calibration that holds = drift recovered. Recurring drift = mechanical underlying cause that calibration alone can’t fix. Belt replacement is PhotoRobot field engineering work.
Q5 multiple-choice · spare-reorder What’s the right re-order discipline for consumable spares?
Source: H03 §7.
Explanation: Just-in-time spare ordering creates mid-shoot outages during lead time. Use-replenish + monthly audit = always at baseline. The other answers introduce known failure modes.
Q6 multiple-choice · cable-replacement A cable is showing intermittent connection issues that improve when the cable is wiggled. What’s the right action?
Source: H03 §4 + §6 (failure modes).
Explanation: Wiggle-sensitive issues are classic cable wear. Replace; don’t try to nurse along a marginal cable.
Q7 true-false · power-cycle-everything “Power cycle everything in the studio” is a valid first-response strategy for any hardware symptom.
Source: H03 common mistakes.
Explanation: Reflexive power-cycling hides root causes and can be dangerous (e.g., for buzz+heat symptoms). Use the failure-mode table; power-cycle when diagnostic points to it.
Q8 multiple-choice · maintenance-cost-balance Why does scheduled maintenance pay off operationally?
Source: H03 §1.
Explanation: Cadences cost ~5-10 % of studio time but prevent mid-shoot failures that cost 10-100× more in production loss. The ROI on quarterly torque checks (≈30 min/quarter) is enormous.
Q9 scenario · escalation-criteria Camera #2 shows offline. You ran N02 diagnostic tree clean (network healthy). Hardware visual inspection clean. Replaced tether cable — no change.
Source: H03 §8 + §9.
Explanation: After customer-side scope (network, cables, visual inspection) returns clean and symptom persists, escalation is appropriate. PhotoRobot Support can investigate firmware, internal hardware, or workspace-config aspects you can’t reach.
Q10 multiple-choice · log-discipline Why maintain a permanent operational log?
Source: H03 §1 (cadences) + §8 (workflow).
Explanation: The log is internal continuity + evidence. 60 seconds per entry; pays back enormously when the question “when was this last checked” arises.
Q11 multiple-choice · photographic-doc When preparing a PhotoRobot Support escalation packet for a hardware symptom, what addition (over the N02 network version) is most valuable?
Source: H03 §9.
Explanation: Hardware symptoms are often visual. Photo / video shortens Support’s diagnostic time dramatically. A photo of “the strobe head with no light when triggered” is worth 1000 words.
Q12 multiple-choice · closing-philosophy Best summary of H03’s operational philosophy:
Source: H03 closing message.
Explanation: Boring is the goal. Scheduled cadences + proactive consumable replacement + clean escalation. The extremes (over-replace, reactive-only, full outsource) are all wrong.
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