I have designed a PCB based on a schematic which I am pretty sure that is correct and I have tested the schematic several times on the breadboards and all of them worked properly.
But, after I designed the PCB I found that it only works when I touch the the photo diode pins otherwise it doesn't work normally.
My PCB is only 2 layers and I have not separated (GND,VIRTUAL GND,AND 12V POWER) in to a separated PCB layers.
Also, I have checked all of my OP-AMP voltage and input voltage and compared them with the breadboard, the result was that all of them were same as each other but, I can not understand why PCB doesn't work good and I have to touch the pins to make it works.
I am new employee in a company and it is very important for them that I fix this issue, I tried a lot to fix this issue but until now I have not succeeded.
So, I will be appreciate if any of you guys can give me an advise or guide me to I be able to fix this or issue design a PCB that works properly.
Finally I have to mentioned that this schematic has been designed by very well known company and is 100 present is correct and good but this design is a little bit old maybe for 12 years ago.
I have uploaded the schematic here.
Thank you everybody for your help and time.