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Internal part

KMS-190A

Source reference · needs review · MiniDisc Wiki, September 2026 snapshot

Accessories & internal parts

Source-referenced components. Check conditions before substituting parts.

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Original source · Source edits are not technical review dates. Original credits and licence notes remain below.

Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.

Attribution and changes

Adapted from “KMS-190A”. Links, layout and file names normalized; missing database fields restored; remote embeds replaced with links. Manufacturer manuals and separately credited photographs retain their original attribution.

A Sony optical pickup, used in the mz-r2, mdh-10 and md4. No reported issues.

Sony Part #:

A-3300-221-A (MZ-R2) X-4620-953-1 (MDH-10)