PCBA Functional Testing (FCT): Define and Verify Product Operation

Describe what the assembly must do, under which input and load conditions, and how the result will be judged. Include the required operating modes, interfaces and timing. Replace a vague instruction such as “check that it works” with observable outcomes and a controlled acceptance basis.

Supply the product revision, BOM options, schematic and relevant interface information. If the test plan is incomplete, mark the open requirements in the workbench. PCBSync can review the proposed scope and identify the inputs needed for a quotation; the checklist itself does not validate the design.

Functional behavior can depend on firmware, boot configuration, calibration data and product options. State the approved image identity, IC programming sequence and verification requirements. Keep unit-specific provisioning requirements in a controlled process rather than sharing secrets in a general enquiry.

Agree how software versions are recorded with the test result. A changed image or configuration can alter timing, expected outputs and limits. The production program and work instruction should identify which combinations are supported and what requires another review.

The setup may need connectors, probes, representative loads, stimulus sources and measurement instruments. Confirm who supplies each item and how repeatable connections will be maintained. A customer-provided bench setup may need additional work before it is suitable for routine production. Review that transition during the prototype assembly stage, while fixture access and test requirements can still be refined.

Ask the report to link each unit to its hardware, firmware and test-program revisions. Include relevant measured values, units, limits and failure information. Define retry, repair and retest handling so the final result can be traced to the sequence of events. Include record ownership and change control in the contract manufacturing scope.

Separate test development, fixture preparation and validation from repeated unit execution. The time planner uses your own test and handling assumptions for one sequential station. It does not infer readiness from a green checklist or promise manufacturing lead time.

Provide quantity, required timing, report detail and any existing test resources with your enquiry. Include this scope in the PCB assembly manufacturing request so assembly and test responsibilities are reviewed together. Agree which requirements are covered, which remain outside scope and who approves release. Reliability qualification, environmental stress and regulatory evaluation require their own defined plans where applicable.