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 (new gate array)

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 (but might be also used in other countries?)
  • This board version typically includes a small patch: A resistor soldered between Pin9 (A0) and Pin14 (/CASADDR) of IC105. The patch is also seen here. The resistor is labeled as R160 in the schematic, but isn't labeled on the PCB, 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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