Technical

PLEASE NOTE: The Dragon Archive and all of its contributors accept no liability for any injury or damage resulting from any persons attempting to use or follow any instructions contained within this section. The content is provided for information only and the resposibility for using that information lies with the individual performing the work.

Schematics

Dragon 32 Schematics

Dragon 64 Schematics

Project Alpha / Dragon Professional Schematics

Project Beta / Dragon 128 Schematics

Dragon DOS Schematic

Cumana DOS Schematic

Hardware Pictures

Motherboard Pictures

PSU Pictures

Cartridge PCB Pictures.

Service Sheets

Dragon 32 - Service Information (RWEW/KA/0080a)

Dragon 32 - Service Information (RWEW/KA/0081a)

Dragon 32 - Service Information (RWEW/RA/0082a)

Dragon 32 - REPLACEMENT OF POWER SUPPLY AND CENTRAL PROCESSING UNITS ON THE DRAGON 32

Dragon 32 - CPU and PSU Modifcations and Compatibility

N.D.U.G

Dragon 32 - 64K Upgrade

Dragon Notebook

Tutorials

Importing images into the Dragon

DIY Projects

Dragon Peripheral Controller (Electrónica Fácil magazine)
Dragon 32 Input/Output Ports (Maplin Projects Book Eight)
Dragon 32 RS232 Modem Interface (Maplin Projects Book Eight)

Informations

• Keyboard
• CharMap
• Tokens

Chips:

• MC6809E - Dragon CPU
• MC6847 - Video Display Generator (VDG)
• SN74LS783 - Synchronous Address Multiplexor (SAM)