Changes
Added 300 dpi scans of the CPC664 MC0005B board and separated the CPC proto to his own category
== CPC464 version 1 (original) Prototype ==
* '''Size: 405x155 mm'''
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''PCB Top'' ||''PCB Bottom'' || Description
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|[[File:GA motherboard.JPG|200px]] || || '''Board: Prototype with Gate Array Simulator''' ([[CPC Prototypes|more pictures]])<br>The Gate Array Simulator board (mounted on top of the mainboard, and almost having the same size as the mainboard) contains four 8K EPROMs, and a Gate Array prototype made of several logic chips.<br>In later versions these evolved into a normal 28pin 32K ROM chip, and the custom 40pin Gate Array chip.
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== CPC464 version 1 (original) ==
* Big mainboard, old Gate Array with cooling plate and with VCC2; supplied from VCC via two 12 ohm resistors, R138 and R139, which are seen (with white coating) near the cooling plate.
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|[[File:CPC464 270100 Grimware_crop.jpg|200px]] || || '''Board: PT NO 270100, MC0001A, Copyrigh 1983'''<br>Same as "Z70100 MC0001A", but with uncommon text layer: labeled "270100" (not "Z70100"), says "Copyrigh" (not "Copyright"), and, unlike all other boards, its text has slashed zeroes.
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|[[File:CPC664 PCB Top.jpg|240px]] || [[File:CPC664_PCB_Bottom.jpg|240px]] || '''Board: PT NO Z70205, MC0005A'''<br>8pin FDC Data Separator
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|[[File:German Schneider CPC664 open Gryzor missing edgeCPC664_Z70205_MC0005B_PCB_Top.jpg|240px]] || [[File:CPC664_Z70205_MC0005B_PCB_Bottom.jpg|240px]] || '''Board: PT NO Z70205, MC0005B'''<br>Another 664 version, found in german Schneider CPCs (but might be also used in other countries?)<br>This board version typically includes a small patch: A resistor soldered between Pin9 (A0) and Pin14 (/CASADDR) of IC105.<br>The patch is also seen [http://amstrad.cpc.free.fr/amstrad/cpc664_e.htm here].<br>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.<br>Here is [[Media:German Schneider CPC664 open Gryzor missing edge.jpg|another picture]].
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