Amstrad CPC Monitor port pinout
| Pin No. | Signal Name | Description |
| 1 | R | Red analogue signal |
| 2 | G | Green analogue signal |
| 3 | B | Blue analogue signal |
| 4 | Sync | RGB switching control |
| 5 | GND | Common |
| 6 | LUM | Luminance |
This covers the CPC's RGB signal through the 6 pin DIN socket.
Amstrad PLUS Monitor port pinout
| Pin No. | Signal Name | Description |
| 1 | Sync | RGB switching control |
| 2 | G | Green analogue signal |
| 3 | LUM | Luminance |
| 4 | R | Red analogue signal |
| 5 | B | Blue analogue signal |
| 6 | L | Left audio signal |
| 7 | R | Right audio signal |
| 8 | GND | Common |
This covers the PLUS's RGB signal through the 8 pin DIN socket, that also includes stereo audio output.
As indicated in the Service Manual, the connector used is a CSK150-81-30-244, a circular "DIN" style connector in 8-pin "U" shape configuration.
Aleste Video
The Aleste 520EX has a 7pin DIN female connector
1 SYNC __ __ 2 GND / - \ 3 R |7 6| 4 B |3 1| 5 G \5_2_4/ 6 SOUND (mono) 7 LUM Shield GND
GX4000 and KC Compact SCART Video Connector
The GX4000 and KC Compact have a standard Scart connector
Pin KC Compact GX 4000 Scart Standard 1 Audio-Out R Audio-Out R Audio-Out R 2 NC NC Audio-In R 3 Audio-Out L Audio-Out L Audio-Out L 4 GND GND Audio GND 5 GND GND RGB-GND Blue 6 NC NC Audio-In L 7 RGB-Out Blue RGB-Out Blue RGB-Out Blue 8 +12V (Aux) +10V (Aux) Mode (9.5-12V=Aux Input, 5-8V=Widescreen, 0-2V=Normal TV) 9 GND GND RGB-GND Green 10 NC NC Data Clock 11 RGB-Out Green RGB-Out Green RGB-Out Green 12 NC NC Data Out 13 GND GND RGB-GND Red 14 GND NC Data GND 15 RGB-Out Red RGB-Out Red RGB-Out Red 16 +1V (RGB Mode) +5V (!!!) Mode (1-3V=RGB, 0V=Composite) 17 GND GND Composite GND 18 GND GND Mode GND 19 Composite/FBAS-Out Composite/Sync Composite Out (and RGB-Out Sync) 20 NC NC Composite In 21 Shield Shield (GND) Shield
- KC Compact Note: Aside from the above RGB/FBAS signal, the KC Compact additionally contains a UHF modulator (with PAL encoded colors & with Mono sound) (for whatever reason, PAL encoding is used, despite of SECAM being the East-German television standard)
- GX 4000 Note: The GX 4000 additionally has PAL modulator with TV output, too. However, there is none such in the French GX4000 (which would require a SECAM modulator), the french GX4000 outputs plain RGB. In french GX4000, scart Pin19 carries only Sync (unlike the PAL versions which have Composite+Sync on that pin).