vinniekins
New Member
Hi there,
I am trying to hook up a LM3915 to 8ohm speaker outputs to get some dancing lights as attached (the transistors on the outputs are for attaching more than 1 LED per output). The bar mode worked, but when I switch to dot mode, LED1 will be on when there is a signal... ie: when LED7 is on in dot mode, LED1 is also on.
I have read that it maybe ground loops, but I am not certain. Is there anything I've missed on my schematic for starters?
I am trying to hook up a LM3915 to 8ohm speaker outputs to get some dancing lights as attached (the transistors on the outputs are for attaching more than 1 LED per output). The bar mode worked, but when I switch to dot mode, LED1 will be on when there is a signal... ie: when LED7 is on in dot mode, LED1 is also on.
I have read that it maybe ground loops, but I am not certain. Is there anything I've missed on my schematic for starters?
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