標題: Loud pop with UCD when switching on [打印本頁] 作者: ackcheng 時間: 2007-5-25 08:27 標題: Loud pop with UCD when switching on Hi,
I am using UCD180 with coldamp PSU. I use the /on with a relay to contol standby/active. But everytime the module is wakeup from standby mode, there is a loud pop.
Anyway to avoid it?
Is it due to the imbalance of +ve and -ve rails from the coldamp PSU?
ackcheng作者: thomasfw 時間: 2007-5-25 15:02
Pls see the link
http://www.hififever.com/forum/viewtopic.php?t=1214&highlight=作者: thomasfw 時間: 2007-5-25 15:04
Also see this one :
http://www.hififever.com/forum/viewtopic.php?t=1213&highlight=作者: ackcheng 時間: 2007-5-25 22:46
Thanks. Turning the module off is OK. But the problem is turning it on. When /on is pull to GND, I can hear a loud "pop" 1 -2 seconds later.