PCBA Development — KOLELI
Capabilities

PCBA Development

Control board design, SMT assembly, firmware integration and functional test.

Control boards are designed and assembled in the same building as the housing. For new designs we define the electronics architecture alongside the mechanism, so battery, charging, sensing and output control are designed as one system rather than bolted on afterwards.

Where boards fail

Most field failures on a beauty device are not exotic: a battery protection threshold set too close to the charger’s tolerance, a connector that fatigues after a few hundred flex cycles, a firmware state machine that never leaves the highest intensity. These are design decisions, and they are cheapest to fix before the first panel is ordered.

From design to line

Boards are placed, reflowed and selectively soldered in-house, then functionally tested before they reach assembly. A failed board is repaired and retested rather than quietly packed; the test record stays with the batch, so a return can be traced to the board rather than to the whole shipment.

Certification is designed in

For the LKL2315 platform we hold CE-EMC (EN 55014), FCC SDoC and RoHS reports, and the certificate numbers are published rather than summarised. An EMC pre-scan runs before the formal test, because the useful moment to discover a margin problem is while the layout can still change.

At a glance

In-house equipment
3 SMT machines, solder paste printing, reflow and selective soldering
Scope
Schematic, layout, firmware, programming and functional test
Design reviews
Power budget, thermal margin, battery protection and EMC review before the first board is ordered
Functional test
Every board is tested before it reaches the assembly line; failed boards are repaired and retested
Evidence
CE-EMC, FCC SDoC and RoHS reports for LKL2315, with report numbers published on the certification page
Deliverables

What you get

01 Schematic and PCB layout files, with the component choices justified against the BOM cost
02 Firmware with a documented behaviour spec, and the flashing procedure for the line
03 Test fixture design and the pass/fail limits used in production
04 EMC pre-scan results before formal testing, so a failed test is not the first warning
05 The certification package — test reports and declarations for the target market
PCBA Development — KOLELI
A panel of control boards before selective soldering.
PCBA Development — KOLELI
Placement on our own SMT line, so a layout change does not wait for an outside factory.

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