Asus X455LD Rev 2.3 Dead Condition

[qonma]

we have problem
laptop asus X455LD rev 2.3
after plugin charger PU 8101 very hot
replace nu PU8101 and PQ8101,PQ8100,PQ8102,8103 same problem
check another part cannot find short
if we put out PU8101 and PQ8101,PQ8100,PQ8102,8103 the amper in the PSU normaly. PSL8100 and PSL8106 cannot out 3 and 5 volt, very2 confused, my all friends here can help to fix my problem. thanks

[jasko_jacker]

Re: Asus X455LD Rev 2.3 Dead Condition

Short on 3V or 5V alw ?

[qonma]

Re: Asus X455LD Rev 2.3 Dead Condition

Short on 3V or 5V alw ?

am cek in PL 3 and 5 volt nothing short
3 and 5volt vs nothing short
all voltage device nothing short

[mcplslg123]

Re: Asus X455LD Rev 2.3 Dead Condition

if pu8101 is getting hot, either 3v or 5v rail is shorted as@jasko has suggested.

[qonma]

Re: Asus X455LD Rev 2.3 Dead Condition

if pu8101 is getting hot, either 3v or 5v rail is shorted as@jasko has suggested.

not meet shot...

[dspok]

I have Rev. 2.1, the Issue is +3VSUS_SPI, and +1.35VSUS is flactuating. 3/5V is ok, Changed PU8300 and PU9100 with no result. Anybody have an clue then please share it.

Schematic not found, but boardview here https://www.badcaps.net/forum/docume...c-repair-guide