Signage, Displays & Architectural Graphics worked example

LED Module Count at 65% smt line uptime: a worked example

This worked example runs the led module count numbers for a tougher week than the baseline: 65% smt line uptime instead of the typical 90%. LED Module Count capacity tells a signage or video-wall shop how many good modules an SMT and assembly line can actually deliver in a shift, not just the theoretical maximum.

The inputs for this scenario

  • LED modules populated per pick-and-place cycle: 4 units / cycle (held at the documented default)
  • Placement cycles available per shift: 480 cycles (held at the documented default)
  • SMT line uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • First-pass module yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross LED module count capacity = units per cycle × available cycles.
  • Good output capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross capacity works out to 1,920 units at these inputs.
  • Uptime loss works out to 672 units at these inputs.
  • Yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where smt line uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • Use it when sizing a shift or a job for LED video walls, ticker displays, or modular signage where modules are produced in repeatable placement cycles. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Good output capacity: 1,211 units (headline result)
  • Gross capacity: 1,920 units
  • Uptime loss: 672 units
  • Yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live LED Module Count calculator, set smt line uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.