Sam Coupé
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The Sam Coupé is an 8-bit home computer originally released in 1989. Intended as a logical upgrade from the ZX Spectrum 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.
| 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 [1].
XRGB-3 Specific settings
Not tested.
XRGB-Mini Specific settings
Not tested.
OSSC Specific settings
No changes from default settings.
External Links
[2] World of SAM software archive and community forum
