Hi all.
Any help regarding lm3915 vu meter.
I have built 2 meters using attached scheme...For left and right channels.
The problem I have is separating left and right channels.
As I am powering both meters via a single 12v 500ma supply, they work but I have no channel separation.
Turning left or right up/down or off has no effect both meters keep responding.
Seems the common ground might be the problem as input signal connects to ground and carries the signal to both meters all the time.
Any ideas on this, if I use separate power supplies problem is gone, but I really would like to only have to use one supply.
Any help regarding lm3915 vu meter.
I have built 2 meters using attached scheme...For left and right channels.
The problem I have is separating left and right channels.
As I am powering both meters via a single 12v 500ma supply, they work but I have no channel separation.
Turning left or right up/down or off has no effect both meters keep responding.
Seems the common ground might be the problem as input signal connects to ground and carries the signal to both meters all the time.
Any ideas on this, if I use separate power supplies problem is gone, but I really would like to only have to use one supply.