Difference between revisions of "Sam Coupé"

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17 C VID EARTH 18 +12V POWER IN
 
17 C VID EARTH 18 +12V POWER IN
 
19 C VID OUT 20 BRIGHT TTL OUT
 
19 C VID OUT 20 BRIGHT TTL OUT
21 GND.</pre>
+
21 GND.</pre>
 +
 
 +
== 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.
  
 
== [[XRGB-3]] Specific settings ==
 
== [[XRGB-3]] Specific settings ==

Revision as of 08:01, 12 September 2018

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.

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.

XRGB-3 Specific settings

Not tested.

XRGB-Mini Specific settings

Not tested.

OSSC Specific settings

No changes from default settings.

External Links

[1] World of SAM software archive and community forum