Discman Mega Bass D-90

Sony Corporation; Tokyo

Data
Forum
Pictures
Collections

  • Year
  • 1989
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 316078

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • CD-Player, -Writer, MD, MOD (audio); Radio Control (+Remote Wire etc)
  • Power type and voltage
  • Other, details in remarks or not known.
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Discman Mega Bass D-90 - Sony Corporation; Tokyo
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 131 x 31.9 x 142.7 mm / 5.2 x 1.3 x 5.6 inch
  • Notes

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

    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
    Error Correction Sony Super Strategy Cross Interleave Reed Solomon Code
    D-A conversion 16-bit linear, 2 fs digital filter
    Frequency response 20-20,000 Hz +1dB,-3dB
    Wow and flutter Below measurable limit
    Outputs (at 9 V input level)
    Line output
    (stereo minijack)    		 Output level 0.7 V rms at 50 kΩ
    Load impedance over 10 kΩ
    Headphones
    (stereo minijack)    		 9 mW + 9 mW at 32 Ω

    Power requirements
    Rechargeable 4V battery pack BP-2 (supplied)
    Battery case EBP-2 (supplied) and two size AA alkaline batteries (not supplied)
    DC IN 9 V jack accepts:
    Sony AC power adaptor (supplied)
      UK Model: AC-930A 240V AC 50 Hz
      AEP Model: AC-930AEP 220V AC 50 Hz
      E Model: AC-950W 110, 120, 220 or 240V AC 50/60 Hz
    Sony CPM-100P car mount plate (optional)
    Sony DCC-120A car battery cord for use on 12 V car battery (optional)

    Power consumption    1.8 W DC

    Supplied accessories
    AC power adaptor
    EBP-2 Battery case
    BP-2 Rechargeable battery pack
    Carrying case
    Connecting cord (stereo miniplug 🠖 two phono plugs)

    Optional accessories
    MDR-E282 Headphones
    AC-D6M AC power adaptor
    CPM-100P car mount plate
    DCC-120A car battery cord for use on 12 V car battery
    RM-DM1K Wireless Remote Control Kit
    RM-DM2 Remote Control Unit (wired)
    CPA-2 Car Connecting Pack
    CPM-100A Car Plate Arm
    BC-BP2 Battery charger for BP-2

    Very similar to the Sony D-9 (US &Canada models) Discman.

  • Net weight (2.2 lb = 1 kg)
  • 0.420 kg / 0 lb 14.8 oz (0.925 lb)
  • Mentioned in
  • -- Original prospect or advert (1989 Sony General catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions Discman D-9 dated 1989)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service Manual Discman D-9/90)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum