SOP: Functional test and stick calibration (sta:t2)

SYNTHETIC example. Rev C, 2026-10-14.

Operators: 1
Equipment: stick actuation robot, button press head, IMU turntable

Steps

1. Stick centre and range calibration (op:stick-cal). Robot sweeps the stick to 8 points and centre. Target 15 s.
2. Buttons, IMU, haptics and LED (op:functional). Press head, 90 degree turntable step, LRA current. Target 12 s.

Tests and limits

Test	Lower	Upper
Stick centre at rest, after calibration		1.0 % of full scale
Stick range, each axis	96.0 % of full scale
Face button actuation force	150.0 gf	210.0 gf
Gyro zero-rate bias		2.0 deg/s
LRA drive current	40.0 mA	90.0 mA

Watch for

• Seat the unit in the robot nest, stick up.
• The robot sweeps the stick through 8 points and centre, then writes the calibration.
• Three fails in an hour: hold the line and call IQC to check the stick module lot.

Risks at this station (PFMEA)

• Calibration out of range: RPN 32 (fm:stick-cal-fail)