CXD2678
A Sony ATRAC Type-S IC, compatible with NetMD. Basically a cxd2680 with 8MiB of DRAM instead of 2MiB.
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CXD2679
A Sony ATRAC Type-S IC, found in the mz-e520. Playback-only. Advanced Info 0x40000 (256k) Flash Size 0x3000 (12k) RAM Size ARM7TDMI CPU Core Firmware Dumps Thanks Sir68k and Asivery for their work on these chips!
CXD2680
This NetMD-compatible ATRAC Type-S IC is commonly seen in the mz-n420d (207GA) and mz-ne410 (GA). Sometimes referred to as the CXD2676. Uses the same firmware as the CXD2678. List of known variants: CXD2680GA (NE410) CXD
CXD2681
A Sony ATRAC3Plus (Hi-MD) IC, with multiple revisions. All models have 1MiB of Flash, 64k of SRAM, 16MiB of DRAM, and ARM7TDMI+ CPU cores. For ease of use, we will format them into 2 groups: Pre-RH and RH. This simply sp
CXD2683
A Sony ATRAC3Plus (Hi-MD) IC that is mostly undocumented, as it only was used in 2 different MD devices during its lifespan. CXD2683-225G Pinout and Schematic This IC has two (currently known) revisions, as seen below: C
CXD2686-223GG
A Sony ATRAC3Plus (Hi-MD) IC. It was used in the following devices, all from Onkyo: Onkyo MD-105FX (Before 2006) Onkyo MD-133 (Before 2006) fr-n9 (Before 2006) fr-n7 (Before 2006) fr-b7 (Before 2006) fr-b8 (Before 2006)
CXD2687-001GG
A Sony ATRAC3Plus (Hi-MD) IC which has 1MiB of Flash, 32k of SRAM, 16MiB of DRAM, and an ARM7TDMI+ CPU Core. Datasheet/Pinout The final Hi-MD IC, which is seen in the following models: Sony MZ-RH1 / MZ-M200 Onkyo MD-105F
H8173AF (Sharp)
Sharp H8173AF
KLR1000J (Panasonic)
Panasonic KLR1000J. Found in at least one early auto MD unit: CQ-MR335LEN
KLR1001 (Panasonic)
Panasonic KLR1001 - seems to be from the mid-late 90's. Found in the Panasonic CQ-MRX777
KMS-130B
Sony optical pickup, used in the mz-1 and dm-1001 No known issues. Sony Part #: X-4944-237-1
KMS-150A
A Sony optical pickup, used in the mdx-u1. Users report that this mechanism is KNOWN TO FAIL, make sure replacement parts are readily available before purchasing! Unknown Sony Part #
KMS-151A
A Sony optical pickup, used in the mdx-400. Users report that this mechanism is KNOWN TO FAIL, make sure replacement optical pickups are readily available before buying anything that uses this optical pickup! Sony Part #
KMS-190A
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)
KMS-193A
A Sony optical pickup, used in the mdx-c150. Users have reported that this optical pickup is KNOWN TO FAIL, make sure replacement optical pickups are readily available! Sony Part #: ?-???-???-??
KMS-201A
A Sony optical pickup, used in the mz-e3. Users have reported that this optical pickup is KNOWN TO FAIL, make sure replacements are readily available before buying! Sony Part #: ?-???-???-??
KMS-210A
A Sony optical pickup, seen in the mds-302, mds-ja3es, mds-ja50es. Справочная информация по лазерным головам к минидисковым декам Sony. Sony MDS-302 MDM-2A MBU-2 KMS-210A Sony MDS-303 MDM-2A MBU-2 KMS-210A Sony MDS-503 M
KMS-241C
Optical pickup designed for the automobile environment.
KMS-260A
A Sony optical pickup, seen in the mds-je500 and mds-je510. No known issues with this optical pickup, but the JE500 and JE510 commonly have issues with other parts. Sony Part #: 8-583-028-01
KMS-260B / KMS-260E
A Sony optical pickup, found in the mds-je480 and md-105tx. Not hard to find for sale on places like AliExpress, and there are no reported reliability issues with this pickup anyway.
LB37648B (Sharp)
A 5th generation Sharp ATRAC IC, confirmed to be used in the md-ms701.
LC89640 (Sanyo)
A playback-only(?) Sanyo ATRAC IC, released alongside the LA9605W amplifier. Potentially able to record as well, as this page claims. Press Release (Translated)
LC89641 (Sanyo)
A playback-only Sanyo ATRAC IC, released alongside the LA9606W amplifier. Press Release (Translated)
LC896431 (Sanyo)
An ATRAC3 playback-only Sanyo IC, released in 2001. Unknown which models (if any) it was used in. It is in a TQFP 120 pin package. Datasheet/Pinout
LR37545 (Sharp)
found in multiple Denon units. Multiple decks refer to both on different sections of their manuals, so also refer to the lr37643 for more info.
LR37643 (Sharp)
PageDevice typeRelease date Denon DMD-1300 / DMD-1550Gdeck1998/09
LR37811 / LR37811A (Sharp)
A Sharp 6th generation ATRAC IC, seen in the md-st521 (LR37811A) and md-ds721 (LR37811).
LR37812 (Sharp)
A 7th generation Sharp ATRAC IC, seen in the md-mt831, md-mt832, and dmc-l7r.
LR376484F (Sharp)
PageDevice typeRelease date Kenwood RXD-M32MDbookshelf
LR378161 (Sharp)
A generation 8.3 Sharp ATRAC IC (MDLP COMPATIBLE), used in the md-mt77 and dmc-m7r.
MD Internal Components
mechanism pickup atrac-ic other-ics Research These were moved from the resources section as part of wiki cleanup: Sony MD chipsets (CXD): CXD2525AQ/AR EFM/ACIRC Encoder/Decoder CXD2526AQ/AR Audio Skip Guard Memory Contro
MD Mechanisms
Mechanisms: cx-bm1060f cx-bm4290f cx-bm8190f mg-164na-138 x33-3170-00 x92-3770-00 Decks: MDM-1A - 02-93 (e.g. MDS-101); Base unit type: MBU-1A; OP: KMS-140B MDM-1C - 1995 (e.g. MDS-501); OP: KMS-140B MDM-2A - 1994 (e.g.
mg-164na-138
Sony MG-164NA-138 Found in the MDX-CA580 and others from that time period.
MN66616RA4 (Panasonic)
A Panasonic "H.D.E.S." ATRAC IC, seen in the sj-hd515. Chip Schematic
MN66616RB1 (Panasonic)
A Panasonic "H.D.E.S" ATRAC IC, used in the sj-mr100. It was replaced in the MR100 in 1999 by the MN66616RB2. Schematic and Pinout from MR100 Service Manual MR100 Service Manual Supplement in 1999
MN66616RB2 (Panasonic)
A Panasonic "H.D.E.S." ATRAC IC, seen in the sj-mr200 and potentially the sj-mr100. Chip Schematic with Pinout and Diagram MR100 Service Manual Supplement
MN66618RC (Panasonic)
A Panasonic ATRAC IC released in 1999, this chip is a LQFP 100 pin format IC, with the ability to do EFM modulation/demodulation, ACIRC en/decoding and ADIP demodulation. Datasheet/Press Release
MN66620RF (Panasonic)
A Panasonic ATRAC IC, seen in the sj-mj88. Not much info on it, besides that it is non-HDES.
Optical Pickups
Optical Pickups, sometimes called Optical Blocks, are the non-serviceable laser mechanism in every MD device. Most Sony pickups have model numbers that start with "KMS-". Pickups: h8173af klr1000j klr1001 kms-130b kms-15
Other ICs
ICs: cxd1873r cxd1875 cxd2525q cxd2525r