Discman D-70

Sony Corporation; Tokyo

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  • Year
  • 1986 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 316061

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • CD-Player, -Writer, MD, MOD (audio)
  • Power type and voltage
  • Batteries / addl. power jack / Pb: 1 x 6 / AA: 8 x 1.5 / 9 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Discman D-70 - Sony Corporation; Tokyo
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 126.9 x 31.5 x 125.9 mm / 5 x 1.2 x 5 inch
  • Notes

  • A small portable stereo compact disc player. Jacks for DC In 9V, Line Out and Phones.

    Features
    • AMS (Automatic Music Sensor) for quick location of selections
    • Search function for quick location of a desired point in a particular selection
    • RMS (Random Music Sensor) allows selections to be played in a specified order.
    • Shuffle-play function repeatedly plays selections in a random order.
    • Repeat functions for the whole disc and for a particular portion
    • Digital readout display—the track number on the disc and the elapsed or
      remaining playing time are shown on the LCD (Liquid Crystal Display) window.

    Specification  
    System Compact disc digital audio system
    Disc Compact Disc
    Error Correction Sony Super Strategy Cross Interleave Reed Solomon Code
    Number of channels 2
    D-A conversion 16-bit linear
    Total harmonic distortion Less than 0.008%
    Dynamic range More than 90dB (1 kHz)
    Wow and flutter Below measurable limit
    Outputs (at 9V input level)
    Line output
    (stereo minijack)    		 Output level 1 6V rms
    Load impedance over 10 kΩ
    Headphones
    (stereo minijack)    		 30mW + 30mW at 32 Ω

    Power requirements
    6V Lead acid battery (closed type) using Sony BP-200 rechargeable battery pack (supplied)
    12V Eight IEC designation LR6 alkaline batteries (size AA) using Sony EBP-380 battery case (optional)
    DC IN 9V jack accepts;
    Sony DCC-120 car battery cord (optional) for use on 12V car battery
    Sony AC power adaptor (supplied) :
      Dutch Model: AC-930AEP 220V AC 50 Hz

    Power consumption 2.6W DC

    Similar to the Sony D-50MkII (AEP, France, UK, Australia & E models) Discman and the Sony D-7S (US & Canada models) Discman.

  • Net weight (2.2 lb = 1 kg)
  • 0.510 kg / 1 lb 2 oz (1.123 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manuals D-50MkII/D-7S/D-70 dated 1986)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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