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