HP SMPS dead

Repairing electronics topics.

HP SMPS dead

Postby nisse on Thu Dec 27, 2007 1:08 pm

Hi all.
I have a problem with a PPP009H (HP's number: 384019-002), it's a SMPS PSU for
a hp/Compaq nx6310 laptop.

The SMPS was dead, i found out that the reason was a short circuit in the coaxial
cable that feeds the laptop. I repaired it, but it's still dead.
On further investigation i found 2 burnt resistors, probably acting like a shunt
for the SMPS in order to measure the output current.
Since they are burnt, the markings of the resistors has ascended to the electronic heaven...
So, i would like help with identifying the value of these resistors (R30A and R30B
in the enclosed pic), if someone out there has a corresponding SMPS or an electric drawing to look at.




link to picture:
http://allyoucanupload.webshots.com/v/2 ... 2866981814
nisse
 
Posts: 6
Joined: Thu Dec 20, 2007 9:18 pm
Location: Sweden

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