The FX mainboard, the deepest-level electronics swap on the chair. When remotes, motors, and power all test fine but functions still misfire, the mainboard is what remains.

• Fits: Shiatsulogic FX massage chairs

LX/EX-R version: LX/EX-R mainboard.

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.