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Fixture model:
Description
JBL 443227-001 power-supply PCB for the EON518S powered subwoofer. It is the board identified for the speaker’s internal power-supply section, separate from the AC-inlet PCB listed under another service number.
Confirm 443227-001 on the installed board and compare connector locations, heat-sink arrangement, mounting pattern, and revision markings before replacement. Stored voltage may remain after disconnection, so this assembly should be handled only after appropriate power-down and discharge precautions.
Do not transfer components between power-board revisions without confirming their electrical equivalence.
