Sam Coupé
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The Sam Coupé is an 8-bit home computer originally released in 1989. Marketed as a logical upgrade from the ZX Spectrum with compatible modes it has an RGB output making it potentially ideal for use with the XRGB or OSSC upscalers.
Contents
Models
There was only a single revision board produced
Important Notes
The SCART socket on the back of the SAM Coupé has a non-standard pin-out as it also has +5V and +12V inputs, TTL level ouput and a lightpen connection [1].
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | AUDIO OUT RH | 2 | SPEN |
| 3 | AUDIO OUT LH | 4 | AUDIO EARTH |
| 5 | BLUE EARTH | 6 | BLUE TTL OUT |
| 7 | BLUE LIN. OUT | 8 | RED TTL OUT |
| 9 | GREEN EARTH | 10 | GREEN TTL OUT |
| 11 | GREEN LIN. OUT | 12 | 5V POWER IN |
| 13 | RED EARTH | 14 | CSYNC EARTH |
| 15 | RED LIN. OUT | 16 | CSYNC |
| 17 | C VID EARTH | 18 | 12V POWER IN |
| 19 | C VID OUT | 20 | BRIGHT TTL OUT |
| 21 | GND. |
Modifications
When using an RGB cable there is a lot of reflection on the picture, the fix is a to remove inductor L5 from the main board and replace it with a wire link [2].
XRGB-3 Specific settings
Not tested.
XRGB-Mini Specific settings
Not tested.
OSSC Specific settings
No changes from default settings.
External Links
[3] World of SAM software archive and community forum
