Schematics

CPC Classic Schematics

• System Schematics
• 
  Amstrad CPC464 (new)
• 
  Amstrad CPC464 (scan)
• 
  Amstrad CPC664 (main)
• 
  Amstrad CPC664 (disc)
• 
  Amstrad CPC6128 (main)
• 
  Amstrad CPC6128 (disc)
• 
  Disc And Cassette Schematics

1. Important: There are several versions of the 464 and 6128 motherboards with more or less different schematics. Make sure to check the service manuals for your specific motherboard version if you recognize a difference.
2. HighRes scalable version of the CPC464 Schematics: 464SchematicRedraw_white.pdf
3. A full KiCad 6 schematic and pcb layout for the MC0020x CPC6128 boards (featuring the "new" gate array and 24-pin data separator IC) is available at https://github.com/pelrun/cpc-schematics

• Monitor Schematics
• 
  GT64
• 
  GT65
• 
  CTM640
• 
  CTM644

• Disk Drive Interface Schematics
• 
  DDI

CPC Plus Schematics

• Original Scans (high-resolution, with lots of blank space)
• 
  CPU Schematic
• 
  Asic Schematic
• 
  Video and Memory Schematic
• 
  Cassette Schematic

• Edited (lower resolution, less blank space, more concentrated info)
• 
  CPU Schematic
• 
  Asic Schematic
• 
  Video and Memory Schematic
• 
  Cassette Schematic

• Monitor Schematics
• 
  MM12 Schematic
• 
  CM14 Power And Sound Schematic
• 
  CM14 Video Schematic

GX4000 Schematics

• System Schematics
• 
  CPU Schematic
• 
  Asic Schematic
• 
  Video and Memory Schematic
• 
  RGB Conversion Schematic
• 
  Power Supply Schematic

• GX4000 - Edited version (lower resolution, less white space)
• 
  ASIC Schematic
• 
  CPU Video Memory
• 
  RGB and Power (PAL)
• 
  RGB and Power (French)

KC Compact Schematics (East German CPC clone)

• 
  CPU and I/O Schematic
• 
  Memory Schematic
• 
  Modulator Schematic
• 
  Video and Power Schematic
• 
  Block Diagram
• 
  Component Map (Mainboard)
• 
  Component Map (Modulator)

Aleste 520EX Schematics (Russian CPC clone)

• 
  Schematic 1/4
• 
  Schematic 2/4
• 
  Schematic 3/4
• 
  Schematic 4/4
• 
  Component Map

For reference, the original unedited schematics are here: Sheet 1, Sheet 2, Sheet 3, Sheet 4, and Component Map

Additional Hardware

• 3 1/2" & 5 1/4" Disk Drives (errr. no schematics here, no pinouts, nothing?)
• Peripherals (contains schematics - as far as any do exist)
• Joystick Y-cables (with schematics)
• TV Scart cable (with schematics)

• Note - Further schematics are found in the Service Manuals.

Datasheets

• Decoder 74LS145 datasheet
• MUX 74LS153 datasheet
• Data buffer 74LS244 datasheet
• Printer port latch 74LS273 datasheet
• Data latch/buffer 74LS373 datasheet
• 8-Analog multiplexer 74HC4051 datasheet