Resources

MiniDisc labels

• 分析: The Vapour and the MiniDisc
• 分析: Additional Thoughts Concerning the Vapour and the MiniDisc
• Remember Minidisc? Here's How You Can Still Use It in 2020
• ATRAC Developer's Interview
• Sharp vs Sony - the AUVI Amp
• Back to the Future - What I loved about MD

• Sony MiniDisc Magneto Optical Basics - Training Manual, Course MO-1
• The Rewritable MiniDisc System, Proceedings of the IEEE, USA, vol. 82 no. 10 pp. 1492-1600, Oct 1994
• ATRAC: Adaptive Transform Acoustic Coding for MiniDisc, 93rd Audio Engineering Society Convention in San Fransisco, 1992 October 1-4
• Sharp "What Are MDs?"
• Onkyo MD tech

• Sony S-Link/Control-A1 Control System (Operating Instructions)
• Reverse Engineered Control-A1 Codes (Brian Patti)

• RS232C Interface Manual (MDS-E11, MDS-E52, MDS-E12, CDP-D12)
• RS232C Interface Manual - Addendum

• Sony MiniDisc MDM/OPU/ATRAC/ADC/DAC data
• Retry Cause Display Mode - please contribute machine ID codes!

• KMS-260E laser power settings cf KMS-260A/KMS-260B
• Combo decks (e.g. MXD-D4) use laser KMS-262 (rather than KMS-260) to support heating the disc faster (9mW vs 7mW) in high-speed dubbing modes. With correct adjustment using an LPM, KMS-262 can probably be used where KMS-260 was originally (but not KMS-260 where KMS-262 is needed).

• https://overseas.sanwa-meter.co.jp/products/laser_power-environment/lp10.html
• https://www.youtube.com/watch?v=gEPxoJ-gZqA
  • https://github.com/fijam/md-lpm

Mods - would be great to have a specific page for this sort of stuff for the 'hardcore' folk

Sony MD chipsets (CXD):

• CXD2525AQ/AR EFM/ACIRC Encoder/Decoder
• CXD2526AQ/AR Audio Skip Guard Memory Controller
• CXD2527 ATRAC Encoder/Decoder
• CXD2531BR ATRAC Encoder/Decoder
• CXD2635 ATRAC1 Encoder/Decoder
• CXD2636 ATRAC1 v3 Encoder/Decoder
• CXD2650 ATRAC1 v4 Encoder/Decoder
• CXD2652 ATRAC1 v4 Integrated DSP
• CXD2654 ATRAC1 v4.5 Integrated DSP
• CXD2656 ATRAC1 Type-R Integrated DSP
• CXD2662 ATRAC1 Type-R/ATRAC3 Integrated DSP
• CXD2664 ATRAC1 Type-R/ATRAC3/Type-S Integrated DSP
• CXD2680 ATRAC1 Type-R/ATRAC3 Type-S Integrated DSP and System Controller

Sanyo Chipsets:

• Sanyo LC89640 - November 1997
• Sanyo LC89641 - October 1998

Panasonic Chipsets:

• MN66618 / MN66618RC

'Integrated DSP' = Servo Signal Processor, EFM/ACIRC Encoder/Decoder, Shock Proof Memory Controller, ATRAC Encoder/Decoder. See https://www.minidisc.org/one_chip_lsi.html

• Sanyo LC896431

Sony MD chipsets (CXA):

• CXA1380M/N ADIP Demodulator
• CXA2523AR RF Amplifier/Focus Tracking/Error Amplifier

ADC/DAC:

• AK4501 16-bit 48kHz audio CODEC (ADC/DAC)
• AK4524VM 24-bit 96kHz audio CODEC (ADC/DAC)
• AK4552 24-bit 96kHz audio CODEC (ADC/DAC)
• AK5356 Low Power 2-bit ADC with microphone pre-amp
• CS5339 16-bit 48kHz ADC
• CXD2564AM 1-bit 8x DAC
• CXD8607N ADC/20-bit DAC
• CXD8735N DAC
• CXD9556AQ DAC
• CXA8042AS Current Pulse DAC
• Sanyo LC78845Q converts 32kHz and 48kHz signals and converts to 44.1kHz

Other Sony MD chips:

• CXD2657R MD/CD Digital Signal Processor

Microcontrollers:

• M30805SGP 16-bit microcontroller (24KB RAM, external Flash)
• M30833FJFP 16/32-bit microcontroller (31KB RAM, 512KB Flash)
• uPD70F3033A 32/16-bit microcontroller (16KB RAM, 256KB Flash)

Other chips used in MD machines:

• BH6511FS 4-channel PWM Driver
• BH6519FS 4-channel PWM Driver
• LB1641 Bidirectional Motor Driver
• LA5632 Multiple Power Supply System Regulator
• LA5643 Multiple Power Supply System Regulator
• CXD1837R 'Unicorn' USB/Audio Interface
• MSM51V17400 4Mx4 Dynamic RAM

Other parts used in MD machines:

• Sony single SPDIF coax RCA (PJRAS1X1S07X)