Hello Brettg
thank you for your reply 。 Look the File ,PLS..。.
The model I use DIN signal input. I did not use DIN5, using, the model is working OK, LED level meter indicator is also normal. But when I put the PCB signal input from DIN1 changed to DIN5, or to DIN1 and DIN5 and connection, the model is not working, LED level meter disorder also beating.