Burned SMD component on input

Behemot · 04-04-2012, 03:13 PM

Hi,

I got laptop for repair where his owner tried to fix broken cable on the output of PSU. He connected the PSU to laptop, after flash computer did no longer work. Anyway, I got the laptop with some burned component on input, right on voltage/ground after the connector.

From its size I would say inductor, but it is totaly burned, no mark there. IMHO it is too small to be a fuse or diode. What do you think it may be and what should I replace it with?

ADD// seems to be a capacitor, will change it for some. Is there some way how to find maximum voltage of a ceramic SMD cap? I have some unsoldered, but…do not wish to have it burned due to overvoltage again.

04-04-2012, 03:13 PM	#1
Behemot Badcaps Veteran Join Date: Dec 2009 City & State: Prague, 50°4'52.22"N, 14°23'30.45"E My Country: CZ Line Voltage: 230 V/50 Hz I'm a: Knowledge Seeker Posts: 1,374	Burned SMD component on input Hi, I got laptop for repair where his owner tried to fix broken cable on the output of PSU. He connected the PSU to laptop, after flash computer did no longer work. Anyway, I got the laptop with some burned component on input, right on voltage/ground after the connector. From its size I would say inductor, but it is totaly burned, no mark there. IMHO it is too small to be a fuse or diode. What do you think it may be and what should I replace it with? ADD// seems to be a capacitor, will change it for some. Is there some way how to find maximum voltage of a ceramic SMD cap? I have some unsoldered, but…do not wish to have it burned due to overvoltage again. __________________ Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts Last edited by Behemot; 04-04-2012 at 03:24 PM..

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