darkus
Well-known member
Hi, i just finished my second Rev D build. I was going to add stereo link boards to this and my excisting 1176 but i noticed the new units input and output are off.
Both units are calibrated on their own with the same signal to perfection. They measure the same but the controls are wayyy different.
This is the unit ive had a while
https://www.dropbox.com/s/b09s9ntwlzutpqo/Photo%2023.10.2014%2022.56.07.jpg?dl=0
And this is the new one
https://www.dropbox.com/s/9rll0tei2v5qj6e/Photo%2023.10.2014%2022.57.02.jpg?dl=0
I took these pics right after the 3rd calibration step. I calibrated them at the same time and i did it few times as well to get it right and i couldnt believe how hard the 2nd unit was to set up.
I dont know where to look for with this issue. Help? :-[
EDIT: To me this doesnt seem the normal tolerance of Bourns T-pad or the ouput pot. Everyone says that for the 3rd calibration step you have to crank your input but on this second unit i had to set the controls to the opposite of what everyone says....i started the final calibration step by adjusting output xlr pins to read 0.775V with output pot, then flick the attack switch and set the output to read 2.44V with the input knob. I have checked my input wiring if im just unbalancing somewhere and my wiring is exactly like in the other unit that works.
Both units are calibrated on their own with the same signal to perfection. They measure the same but the controls are wayyy different.
This is the unit ive had a while
https://www.dropbox.com/s/b09s9ntwlzutpqo/Photo%2023.10.2014%2022.56.07.jpg?dl=0
And this is the new one
https://www.dropbox.com/s/9rll0tei2v5qj6e/Photo%2023.10.2014%2022.57.02.jpg?dl=0
I took these pics right after the 3rd calibration step. I calibrated them at the same time and i did it few times as well to get it right and i couldnt believe how hard the 2nd unit was to set up.
I dont know where to look for with this issue. Help? :-[
EDIT: To me this doesnt seem the normal tolerance of Bourns T-pad or the ouput pot. Everyone says that for the 3rd calibration step you have to crank your input but on this second unit i had to set the controls to the opposite of what everyone says....i started the final calibration step by adjusting output xlr pins to read 0.775V with output pot, then flick the attack switch and set the output to read 2.44V with the input knob. I have checked my input wiring if im just unbalancing somewhere and my wiring is exactly like in the other unit that works.