yes, upon you photo, it is shorted with ic 7vuch04.作者: viewer 時間: 2007-9-11 22:20
alfcat,
yes, upon you photo, it is shorted with ic 7vuch04.作者: alfcat 時間: 2007-9-11 22:31
Viewer 兄,
What is wrong with the PCB? Did the shop owner soldered the wrong direction or ....作者: viewer 時間: 2007-9-11 22:50
alfcat.
look like no wrong with the PCB and the shop owner have no soldered the wrong direction or. just shorted the IC only.作者: alfcat 時間: 2007-9-11 23:19
So I can go back and ask for a replacement for the IC and then replace it and give it to my friend no problem?作者: SSWONG 時間: 2007-9-12 17:10
i think viewer is right, just change the IC should be working...作者: alfcat 時間: 2007-9-13 08:20
It is strange. I don't understand WHY the chip blows in the first place. I connect 12V AC to the clock, I immediately see smoke / fumes coming out of it ....作者: mkliu 時間: 2007-10-14 12:09
your first cap 470/16V is too low or max. V
do the math, 12V x 1.41=?作者: DUALXEON 時間: 2007-10-14 22:14
cat sir
如果你個C|ock是買成品,應該有得換,錯不在你.
如果你焊都可以拿個C|ock或打電話問.作者: alfcat 時間: 2007-10-14 22:16
Oh ... I bought this toy as a "finished product". The seller replaced the cap for me already.
I don't know Electronics at all ... ha..ha.. I am an Economist, not an Electronist ....