Thank you very much, that was really helpful
Using
<product name="SCR 16UB Pro" format="jess" scrs="1210,1420,1680,2040,985,1050,1115,1275,1340,1485,1550,1615,1745,1810,1875,1940"/>
All tuners have signal, except E (scr4 - 2040)
Using the next string made the magic happen
<product name="SCR 16UB Pro" format="dSCR,4" scrs="1210,1420,1680,2040,985,1050,1115,1275,1340,1485,1550,1615,1745,1810,1875,1940"/>
Now all tuners are working as it should.
Thank you. Really appreciate the help received here.