amiga 1200 RGB scart cable

[mojo1999]

Hi
 
I’ve been trying to make a RGB scart cable in an attempt to get a better output on my LCD TV.
 
I purchased a cable from ebay, this resulted in a black screen on my 37in samsung LCD tv.
 
I open the cable and added the resistors as stated in http://www.ianstedman.co.uk/Amiga/amiga_hacks/Amiga_SCART/amiga_scart.html
 
The cable now gives me a display, however the screen is of a very poor quality. There seems to be a waving/ flicker and the blacks are very grey.
 
Is there anything else I can try to gain a better image?
 
Many thanks

[mojo1999]

i've cut the composite input and measured the voltage on the blanking pin, its showing 3.6 volts DC using a 75 ohm resistor.
 
The cable should now only be using the RGB inputs.  Are the video grounds linked?  Is the logic ground required?

[mojo1999]

its the samsung Le37m87bd

[mojo1999]

Thanks for the help.


  I should be able to mod the cable.  So is it 75 ohm from Red input to red ground etc?


again many thanks