KC Micro Tronix
Member
820-01041
5v does not switch to 20v
U3200 (CD3215) gets hot (thermal imaging) regardless of port used.
Upon close inspection I discover that there is residue around ball 91 on U3200 indicating that a surge has probably taken place.
Diode checking L3200 indicates both the USB2_UPC_XB N & P are shorted.
removing L3200 only (N) is shorted to U1200. It is also shorted on the other side from the other set of CD3215's but the short stays on the U1200 side when isolated. I am sure U3200 is smoked!
My next step would be to change U3200 and U1200?
I don't have much experience with this LB and would like advice from those who have been there.
Thanks
Randall
5v does not switch to 20v
U3200 (CD3215) gets hot (thermal imaging) regardless of port used.
Upon close inspection I discover that there is residue around ball 91 on U3200 indicating that a surge has probably taken place.
Diode checking L3200 indicates both the USB2_UPC_XB N & P are shorted.
removing L3200 only (N) is shorted to U1200. It is also shorted on the other side from the other set of CD3215's but the short stays on the U1200 side when isolated. I am sure U3200 is smoked!
My next step would be to change U3200 and U1200?
I don't have much experience with this LB and would like advice from those who have been there.
Thanks
Randall