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.