Hi there William,
I did forget to mention that I did replace the main board "GT2560 V3.0", it originally it was DOA when I got it but the board lights lit up but nothing happened there was power to the LCD and board just nothing displayed on LCD. So I bought another "GT2560 V3.0" working board recently.
Below is what I did:
Step 1. I Changed the the main board for a new known working A10M "GT2560 V3.0" board that I bought.
Step 2. Powered on ok but still no LCD display just blank green light.
Step 3. Changed the LCD2004 from a working A10M that I have and it worked as it should, displays and prints fine.
Step 4. Swapped the suspected non working LCD display into a working A10M and still it was Green Screen and no display

.
I have looked around and can't find the LCD2004 Controller I need to get my spare A10M working, it would be a shame if I can not find a replacement LCD for it as its a great machine imo.
There has to be one that I can purchase or a compatible LCD surely.
Eek Eek