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標題: 再請教 K.K._ Ucd_400 ad 關機有吱吱聲 [打印本頁]

作者: thomasfw 時間: 2006-12-23 10:40
標題: 再請教 K.K._ Ucd_400 ad 關機有吱吱聲
Dear K.K.
Do you mean to apply a DC voltage to "J4 & Ground" ?
My transformer has an additional "12 X2 " (AC)
Please show me how !!

Thanks !

作者: kk_ho 時間: 2006-12-24 01:39
標題: Re: 再請教 K.K._ Ucd_400 ad 關機有吱吱聲
FYI

作者: thomasfw 時間: 2006-12-26 23:44
Thanks !
Already done !

作者: kk_ho 時間: 2006-12-27 00:23
Old boy,

Please let me know you are solving the problem or not ?

Thanks
KK.HO

作者: thomasfw 時間: 2006-12-27 15:19
It works now !
Thanks !

作者: ackcheng 時間: 2007-5-25 22:44
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.

作者: kk_ho 時間: 2007-5-25 22:51
Did you place a large cap in the EN pin ?

作者: ackcheng 時間: 2007-5-26 00:38
I did not put any caps in the EN pin

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