Electronics Repair, Refurbishment & Depot Operations worked example

Board Rework Time at 7.2% setup, inspection, and retest allowance: a worked example

Suppose setup, inspection, and retest allowance falls to 7.2%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate technician hours needed for board-level rework such as solder touch-up, connector repair, trace repair, capacitor replacement, or failed component removal.

The inputs for this scenario

  • Boards requiring rework: 120 boards (held at the documented default)
  • Board rework pace: 12 boards / hr (held at the documented default)
  • Setup, inspection, and retest allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base board rework hours = boards requiring rework รท board rework pace.
  • Required board rework hours works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base board rework hours works out to 10 hr at these inputs.
  • Setup, inspection, and retest allowance works out to 7.2 % at these inputs.
  • Board rework pace works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where setup, inspection, and retest allowance sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • It computes the total rework hours for a board batch by dividing quantity by pace and scaling up for setup, inspection, and retest overhead. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Required board rework hours: 10.72 hr (headline result)
  • Base board rework hours: 10 hr
  • Setup, inspection, and retest allowance: 7.2 %
  • Board rework pace: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Board Rework Time calculator, set setup, inspection, and retest allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.