Difference between revisions of "Sam Coupé"

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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.
 
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.
  
<pre>PIN SIGNAL PIN SIGNAL
+
{| class="wikitable" style="text-align:center; width:40%;"
1 AUDIO OUT RH 2 SPEN
+
|-
3 AUDIO OUT LH 4 AUDIO EARTH
+
! scope=col | Pin
5 BLUE EARTH 6 BLUE TTL OUT
+
! scope=col | Signal
7 BLUE LIN. OUT 8 RED TTL OUT
+
! scope=col | Pin
9 GREEN EARTH 10 GREEN TTL OUT
+
! scope=col | Signal
11 GREEN LIN. OUT 12 +5V POWER IN
+
|-
13 RED EARTH 14 CSYNC EARTH
+
|1
15 RED LIN. OUT 16 CSYNC
+
|AUDIO OUT RH
17 C VID EARTH 18 +12V POWER IN
+
|2
19 C VID OUT 20 BRIGHT TTL OUT
+
|SPEN
21 GND.</pre>
+
|-
 +
|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 ==
 
== Modifications ==

Revision as of 08:49, 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