Verify basic startup response and input behavior.
Functional Testing Services
Functional Testing for PCBA Manufacturing
DQX supports functional testing based on customer requirements, helping verify PCBA performance before delivery and reduce production risk.
- Power-on and customer-defined testing support
- Fixture-based testing coordination when required
- Final QC support before delivery
Testing support before deliveryFunctional testing helps verify defined operating behavior before shipment.
TESTDefined checks
QCRisk control
Verification Support
Testing Support That Helps Confirm Your PCBA Works Before Delivery
Functional testing helps confirm whether assembled PCBAs meet basic operating requirements before shipment. DQX can follow customer-provided test procedures, support power-on checks and coordinate fixture-based testing when needed.
Check defined product functions against expected behavior.
Coordinate test fixture use when provided or specified.
Combine testing support with visual inspection before delivery.
Testing Capabilities
Functional Testing Support Based on Customer Requirements
Testing scope is defined by the product, available files, pass/fail criteria and customer procedure.
Power-On Testing
Basic checks to confirm the PCBA can power on according to the defined input requirements.
- Input voltage confirmation
- Startup response
- Initial operating behavior
Customer-Defined Procedures
Testing can follow customer-provided procedures and pass/fail criteria.
- Test steps review
- Expected result confirmation
- Feedback when issues appear
Fixture-Based Testing Support
Fixture-based testing can be coordinated when the fixture, method or requirements are available.
- Test fixture coordination
- Connector and contact checks
- Repeatable test steps
Basic Signal and Function Checks
Support for defined signals, buttons, interfaces or functional response checks.
- Signal behavior review
- Control response checks
- Module or interface response
Programming Coordination
Programming or firmware steps can be coordinated when project files and requirements are provided.
- Firmware file handling
- Programming instruction review
- Procedure-based support
Final QC Before Delivery
Functional testing can be combined with visual inspection and packing preparation before shipment.
- Final test review
- Appearance check
- Delivery preparation
Testing Workflow
How Functional Testing Is Arranged
Clear testing inputs help make results easier to repeat and reduce uncertainty before shipment.
01
Review Testing Requirements
Test procedures, target functions and pass/fail requirements are reviewed.
02
Confirm Test Conditions
Power input, test points, interfaces and expected behavior are clarified.
03
Prepare Test Method
Test procedure, fixture information or work instructions are prepared.
04
Run Functional Testing
Testing is performed during or after assembly according to requirements.
05
Record Issues When Needed
Issues or unexpected behavior can be reported for customer review.
06
Complete Final QC
Final inspection, packing and delivery preparation are completed.
What Testing Can Check
Practical Functional Points Before Shipment
Functional testing does not replace product design validation, but it can help catch production-related issues before delivery when a clear procedure is available.
Power input responseBasic operating behaviorIndicator / LED statusCommunication interface responseButton or control functionSensor or module responseOutput signal behaviorLoad or accessory response
Customer Inputs
What Helps Us Prepare Functional Testing
Testing is most effective when customers provide clear instructions. These details help DQX understand how the PCBA should behave and how results should be judged.
Test procedureStep-by-step requirements or operating instructions.
Pass / fail criteriaExpected response, tolerance or acceptable result.
Power requirementsInput voltage, current range and startup condition.
Firmware filesProgramming files and instructions when needed.
Fixture informationFixture drawing, wiring or operation guide if available.
Product instructionsHow the assembled board should be operated.
Risk Reduction
Reducing Delivery Risk Through Practical Testing Support
Functional testing helps improve communication between assembly, inspection and final delivery.
Defined functional checks can catch power, interface or assembly-related problems before products leave production.
Testing feedback helps clarify whether issues relate to assembly, components, programming or product operation.
Repeatable testing steps make future production runs easier to control and communicate.
Testing FAQ
Functional Testing Questions
Common questions about testing scope, procedures and preparation.
What is PCBA functional testing?
Functional testing checks whether an assembled PCBA performs defined functions according to customer requirements or test procedures.
Do I need to provide a test procedure?
A clear test procedure is highly recommended. It helps define power conditions, expected behavior and pass/fail criteria.
Can fixture-based testing be arranged?
Yes. Fixture-based testing can be supported when fixture information, test points or procedures are provided.
Can DQX program firmware?
Programming coordination can be discussed when firmware files, tools and instructions are provided.
Is functional testing available with SMT or turnkey PCBA?
Yes. Functional testing can be added to PCB assembly, SMT assembly, THT assembly or turnkey PCBA depending on project needs.
Testing Added to Assembly
Need Testing Added to an Assembly Project?
Add functional testing to PCB assembly, SMT assembly, THT assembly or turnkey PCBA depending on your product requirements.