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Can anyone confirm if I have installed the diodes the correct way? I think that's right going from the schems but looking at the picture in the pdf file they look reversed?.

Old russian diods KD522 are used in my samples. They have different marking compared to 1N4148. Your picture is correct.
Edited: Your picture not correct.

First diode over JP3 is not installed properly.

First diode over JP3 is not installed properly.

Thanks for reply . I was too fast in explanation.
All 4 diods up from jumper have same direction.

Thanks for your help I'll resolder that 1 diode and test it tomorrow, fingers crossed.

I'll resolder that 1 diode and test it tomorrow

All 4 diods up from jumper have same direction !