I have an arduino duemilanove 328 with audioshield connected on, but doesnt run, a L light on the AD is blinking, what does it meen? can this be a problem
Give us something to go on please. :-/
Where is this LED? Is it on the shield? If so can you provide a link so we can look at the schematic of the shield, then we could tell a bit better what is happening.
My guess is that it is a data transfer LED and it should be blinking but without further information it is just a guess.
The "L" light is just an LED connected to PIN 13. So any sketch that uses PIN 13, like "blink," will blink it.
However, if it blinks more rapidly, than blink, it could also mean that the chip has lost it's bootloader. Are you able to load a new sketch? If not, what errors are you getting? Tell us more! 