Mainboard Versions

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CPC464 version 1 (original)

CPC464 Z70100 Tomdalby.jpg
  • Board: PT NO Z70100, without any "MCnnnn" code, Copyright 1983
  • Original version. Big mainboard, old Gate Array (with cooling plate). Real wires going to keyboard.


CPC464 Z70100 MC0001A RobertoCarlos.jpg
  • Board: PT NO Z70100, MC0001A, Copyright 1983
  • Keyboard connector now has two rows of soldering points (maybe intended to allow to use different connectors)


CPC464 270100 Grimware crop.jpg
  • Board: PT NO 270100, MC0001A, Copyright 1983
  • This one is labelled 270100, not Z70100.


CPC464 version 2

CPC464 Z70200 Tomdalby.jpg
  • Board: PT NO Z70200, MC0002D, Copyright 1984
  • Separate soldering points for old and new Gate Array (with changed pin-outs).
  • Fragile plastic wires going to keyboard.


CPC464 version 3 (medium-sized)

CPC464 Z70374 Grimware.jpg
  • Board: PT NO Z70374, MC0044A
  • Medium sized mainboard. Seems to be same as previous version, except that components are arranged more tightly.


CPC464 Z70375 Tomdalby.jpg
  • Board: PT NO Z70375, MC0044D


CPC464 version 4 (cost-down)

CPC464 MC0099A.jpg
  • Board: PT NO Z80329, MC0099A, 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

CPC664 PCB Top.jpg
  • Board: PT NO Z70205, MC0005A
  • 8pin FDC Data Separator


German Schneider CPC664 open Gryzor missing edge.jpg
  • Board: PT NO Z70205, MC0005B
  • Another 664 version, found in german Schneider CPCs (though it might be also used in other countries)
  • This board version typically includes a small patch: A resistor soldered between Pin9 and Pin14 of IC105. The patch is also seen on http://amstrad.cpc.free.fr/amstrad/cpc664_e.htm. The resistor has no "R3NN" number on the text layer, so it was apparently added after designing the PCB.


CPC6128 version 1

CPC6128 Z70210 Tomdalby.jpg
  • Board: PT NO Z70210, MC0009A
  • Separate soldering points for old and new Gate Array (as far as known, the old Gate Array was never used in 6128 though, only in 464).
  • 8pin FDC Data Separator


CPC6128 version 2

NoPicture.gif
  • Board: PT NO Z70250
  • Not sure if this version exists, maybe somebody just misread or mistyped the Z70290 board number (?)


CPC6128 version 3

CPC6128 Z70290 Yarek.jpg
  • Board: PT NO Z70290, MC0020B, R1706-94HB, Copyright 1985
  • Can be fitted with Amphenol connectors (done in germany) (instead Edge connectors). Uses 24pin FDC Data Separator.


CPC6128 MC00201 RobertoCarlos.jpg
  • Board: PT NO Z70290, MC00201, 94V.0-FR-4, Copyright 1985


NoPicture.gif
  • Board: PT NO Z70290, MC0023D, 94HB-R1706, Copyright 1985
  • Sold in germany, with Amphenol connectors (and dummy edge-connectors which don't have any contacts, and which are covered by green solder-stop layer), front of mainboard has several vias for giving better contact to shielding plate).


NoPicture.gif
  • Board: PT NO Z70290, MC...?, 94...?
  • Looks almost like the above german board, but the "94HB-R1706" is different
  • http://www.1000bit.it/scheda.asp?id=30 (not perfect picture quality; and board numbers are hidden under shielding plate and capacitors)


CPC6128 version 4 (cost-down)

CPC6128 Z80330 Yarek.jpg
  • Board: PT NO Z80330 (1988)
  • Uses 100pin SMD Gate Array (combines the old Gate Array and PAL, CRTC, and some FDC/DRAM/RESET logic in one chip).
  • Can be fitted with four 64Kx4 RAM chips (or the normal sixteen 64Kx1 RAM chips)
  • Printer port consists of 74LS174+74LS175 (instead of 74LS273)


CPC 464+

CPC464Plus MC0122D NightfallCrew.jpg
  • Board: 2700-016P-3, MC0122D, Copyright 1990
  • 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).


CPC 6128+

NoPicture.gif
  • Board: 2700-016P-3, MC0122D, Copyright 1990
  • Same mainboard is used in 464+, but with additional components installed (extra RAM chips, FDC chips, Floppy connector, and with different LK Links).
  • Uses 160pin SMD Gate Array (ASIC).


NoPicture.gif
  • Board: 2700-016P-3, MC0122B, Copyright 1990
  • Another version, MC0122B, is shown in the Service Manuals (Plus series, page 5).


NoPicture.gif
  • Board: 2700-016P-3, MC0122A, Copyright 1990
  • Yet another version, MC0122A, is shown in the Service Manuals (Plus series, page 16).


GX4000

GX4000 PCB Top.jpg
  • Board: 2700-017P-4, MC0123C, Copyright 1990
  • Same chipset as CPC+, but lacks Keyboard, Expansion Port, Printer Port, Tape/Disc Interfaces.
  • Additional Scart Connector and TV Modulator.


NoPicture.gif
  • Board: 27...?, MC...?, Copyright 1990
  • Version without TV Modulator installed, and with IC101 replaced by 4 transistors.
  • See this picture (might be same mainboard as above, not sure - the photo doesn't show the boards part number; hidden behind the cartridge slot, one thing that IS different is the K1 vs K3 text near the LED).


NoPicture.gif
  • Board: 2700-017P-3, MC0123A, Copyright 1990
  • Shown in Service Manuals (Plus series, page 24 and page 32/france).


DDI-1

DDI-1 ISS3 MF0004B.jpg
  • Board: MF0004B, ISS3
  • 20pin FDC Data Separator


NoPicture.gif
  • Photo of the above Board: MF0004B, ISS3 (and maybe other ISSues, if any?)


See also

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