Mainboard Versions

CPC464 version 1 (A and B)

• Board: PT NO Z70100, Copyright 1983
• Original version. Big mainboard, old Gate Array (with cooling plate). Real wires going to keyboard.

Note: There's also another very similar (older or newer) board:

• Board: PT NO 270100, MC0001A, Copyright 1983 (this one is 270100, not Z70100)

CPC464 version 2

• Board: PT NO Z70200, MC0002D, Copyright 1984
• Big mainboard, separate soldering points for old and new Gate Array (with changed pin-outs). Fragile plastic wires going to keyboard.

CPC464 version 3

• Board: PT NO Z70375
• Board: PT NO Z70374, MC0044A
• Medium sized mainboard. Seems to be same as previous version, except that components are arranged more tightly.

CPC464 version 4 (cost-down)

• Board: PT NO Z80329, Copyright 1988
• Tiny mainboard. Uses 100pin SMD Gate Array (combines the old Gate Array, CRTC, and some FDC/DRAM/RESET logic in one chip).

CPC664

• Board: PT NO Z70205, MC0005A
• 8pin Data Separator (Disc)

CPC6128 version 1

• Board: PT NO Z70210

CPC6128 version 2

• Board: PT NO Z70250

CPC6128 version 3

• Board: PT NO Z70290, 94HB, R1706, Copyright 1985
• Centronics connectors (instead Edge connectors), 24pin Data Separator (Disc)

CPC6128 version 4 (cost-down)

• Board: PT NO Z80330 (1988)

Tiny mainboard. Uses 100pin SMD Gate Array (combines the old Gate Array and PAL, CRTC, and some FDC/DRAM/RESET logic in one chip).

CPC 464+/6128+

• Same mainboard is used in 464+ and 664+ (though not all components installed in 464+, and with different LK Links. Uses 160pin SMD Gate Array (ASIC).

GX4000

• Board: 2700-017P-4, MC0123C, Copyright 1990

See also

• Amstrad part numbers - Part Numbers for PCBs and Chips
• Schematics
• Service Manuals - (cost-down 6128 is in the Amendment manual)