DMG Schematics

See also SGB Schematic.

Modern schematics

The below schematics are kept for historical posterity. If you need a high quality reverse engineered Gameboy schematic, consider gekkio's repository of schematics.

CPU Board

This schematic includes:

• LR35902, The main CPU (Commonly known as GB-Z80; with pinout)
• LH5264, 8192 byte work RAM (With pinout)
• LH5264, 8192 byte video RAM (With pinout)
• External Link Port (With pinout)
• Game Cartridge Socket (With pinout)
• Joypad Matrix (D-pad: Left, right, up, down. Buttons: B, A, Start, Select)
• Audio Amplifier
• Headphone Jack Daughter Board

Display

This schematic includes:

• LH5028/LH5077 (Early screen model, 23040 pixels; with pinout)
• S890623 (Late screen model, 25600 pixels; with pinout)
• IR3E02 (With pinout)

Switching Power Supply

This schematic includes:

• DC Converter Daughter Board
  • Input: +6 V (Battery or mains)
  • Output: +5 V (Logic) and -19 V (LCD)
• Example EPROM Game
• Battery Pack/Charger Unit
• AC Adapter

Source

Source: http://www.devrs.com/gb/hardware.php#hardgb (c) Jeff Frohwein