Detailed Technical Specifications
-"When you hook it up to your sound system, it's like playing in a whole new realm."
-Scott Bayless, CD developer at Sega

 

Sega CD Specifications

Microprocessor (CPU)

  • Motorola 68000 16-Bit @ 12.5 MHz (syncs with Genesis 68000 CPU)

Hardware Graphic Processor (Custom ASIC Chip)

  • Biaxial Rotation, Scaling, Zoom
  • Number of Simultaneous Colors On-Screen (Gameplay): 64 out of 512 color pallette
  • Supported Display Resolutions: 320 x 224 Pixels and 256 x 224 Pixels
  • Number of Simultaneous Colors On-Screen (Full-Motion Video): 128 to 256 (Cinepak and TruVideo Modes)
  • Video Size: From 1/4 to Full-Screen
  • Advanced compression scheme
  • Software-based upgrade

RAM

  • 6 Mb (Program, Picture & Sound Data)
  • 512 Kb (PCM Waveform Memory)
  • 128 Kb (CD-ROM Cata Cache Memory)
  • 64 Kb (Backup Memory)

Boot ROM

  • 1 Mb (CD Game Bios, CD Player Software, CD+G Compatible)

CD-ROM

  • ISO-9660 Mode 1 Compliant - 1x Speed Drive (150 Kb/sec)
  • Rotational Direction: Counter-Clockwise (Against Surface Read)

CD Access Time

  • 0.8 Seconds Minimum ~ 1.4 Seconds Maximum (800 ms ~ 1400 ms)
  • Average: 0.8 Seconds (800 ms)

Storage Media

  • Compact Disc Read-Only Memory (CD-ROM) Disc: 500 MB Maximum Capacity
  • Supported Disc Types: 5 inch (12 cm) and 3 inch (8 cm)

Sound Circuitry

  • Ricoh RF5C164 Chip @ 12 MHz Max
  • PCM Sound Source: Stereo, 8 Channels
  • Sampling Wavelength: 32 KHz Max (44.1 KHz Max for CDDA)
  • 16-Bit D/A Converter
  • 8x Internal Over-Sampling Digital Filter
  • Supported Audio Formats: ISO-9660 Mode 1, Red Book (CDDA), CD+G

Audio Characteristics

  • Frequency Range: 20 Hz - 20 KHz
  • Signal-To-Noise Ratio (S/N): >90 dB
  • Channel Separation: >90 dB

Audio Output (Stereo)

  • Line Out: RCA Pin Jack x 2 (L/R)

Audio Input

  • Mixing: Stereo Jack Mixing

Physical Characteristics

  • Power Usage: Custom AC Adapter (DC9V 1.2A)
  • Elec. consumption: Approx. 18 W Max
  • Elec. current consumption: 600 mA (During CD Revolution)
  • Usage Environment: Temperature 0-40 Degrees Celcius / Humidity: 10%-80% RH
  • Internal Back-up Memory: Lithium CR2016 3V Battery
  • Battery Back-up Secondary Duration: Approx. 1 Month

Dimensions

  • 301 mm (W) x 212.5 mm (D) x 112.5 mm (H)

Weight

  • 3.1 lb (1.4 kg)

Bios Revisions (Supports Regional Lockout)

  • 1.0 (Original Mega CD)
  • 1.10 (Original Sega CD)
  • 2.0 (Mega CD 2)
  • 2.05 (Sega CD 2)
  • 2.10 (Sega CD 2)
  • 2.21 (Sega CDX)

 

Model Information

Model # MK-1690 Sega CD (Model 1, Motorized Front-Loading Tray)

  • UPC: 010086041002
  • Retail Price: $299.99
  • Retail Launch: October 15, 1992

Model # MK-4102 Sega CD 2 (Model 2, Spring Top-Loading Tray)

  • UPC: 010086041019
  • Retail Price: $299.99
  • Retail Launch: 1994

Model # Sega Genesis CDX (Portable Sega Genesis+CD Unit)

  • UPC: 010086041200
  • Retail Price: $399.99
  • Retail Launch: April, 1994

Model # (JVC X'Eye All-in-one Unit)

  • UPC:
  • Retail Price: $499.99
  • Retail Launch: September, 1994

Model # (Pioneer LaserActive)

  • UPC:
  • Retail Price: $969.99 ($599.99 for Sega PAC-S10/PAC-S1 Module)
  • Retail Launch: September 13th, 1993

 

 

( Last Update: Wednesday, March 18, 2009 2:49 AM )

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Created by: JAMMAPARTS (AKA Dynamo JAMMA)

Excerpts from: Sega CD FAQ - By Barry W. Cantin

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