Jl 300/4
 

hello , i have a jl 300/4 im trying to adjust the input sensitivity
following the manual instruction ,i have set the input voltage to low
but even the input sensitivity control turn all the way down im getting high
voltage measurement.my target voltage is 17.3 volts.anyone have suggestions on what the proper way to do it. i have a cda-9887.
thanks in advance.