Editing Amstrad CPC (section)

===Video===
[[File:Schneider CPC6128 with green monitor GT65, Wikipedia logo.jpg|thumb|Mode 1 image on a GT65 green monitor]]
Underlying a CPC's video output is the unusual pairing of a [[Cathode Ray Tube Controller|CRTC]] ([[Motorola 6845]] or compatible) with a custom-designed [[gate array]] to generate a pixel display output. CPC 6128s later in production as well as the models from the plus range integrate both the CRTC and the gate array's functions with the system's [[Application-specific integrated circuit|ASIC]].

Three built-in display resolutions are available: 160×200 pixels with 16 colours ("Mode 0", 20 text columns), 320×200 pixels with 4 colours ("Mode 1", 40 text columns), and 640×200 pixels with 2 colours ("Mode 2", 80 text columns).<ref name="464 Tech spec"/> Increased screen size can be achieved by reprogramming the CRTC.

The original CPC video hardware supports a [[Palette (computing)|colour palette]] of 27 colours,<ref name="464 Tech spec"/> generated from [[RGB]] colour space with each colour component assigned as either off, half on, or on ([[List of monochrome and RGB color formats#3-level RGB|3 level RGB palette]]). The plus range extended the palette to 4096 colours, also generated from RGB with 4 bits each for red, green and blue ([[List of monochrome and RGB color formats#12-bit RGB|12-bit RGB]]).<ref name="ArnoldVSpec"/>

[[File:Amstrad MP-1.jpg|thumb|Amstrad MP1 external television adapter]]
With the exception of the GX4000, all CPC models lack an [[RF modulator|RF television]] or [[composite video]] output and instead shipped with a 6-pin RGB [[DIN connector]], also used by Acorn computers, to connect the supplied Amstrad monitor.<ref name="464 Tech spec"/> This connector delivers a 1v p-p analogue RGB with a 50&nbsp;Hz composite sync signal that, if wired correctly, can drive a 50&nbsp;Hz [[SCART]] television. External adapters for RF television were available as a first-party hardware accessory.