lenovo v460 no power

[alihomee]

today get this one with complete dead condition.3v present on power switch and also on small 128kb chip. when connect with dc power supply the standby current is 0.03a...................any ideas or schematic

[alihomee]

Re: lenovo v460 no power

any body

[are-red]

Re: lenovo v460 no power

its 5v present? try to re-flash the bios first

[robrock1]

Re: lenovo v460 no power

see if something is getting hot somewhere, standby current is mostly around 0.01 - check around power and charging ic maybe a capacitor or diode is leaking?

[alihomee]

Re: lenovo v460 no power

i do not have the files to flash bios. one chip is 128kb and one is 4mb....

[Francisco.s]

Re: lenovo v460 no power

i do not have the files to flash bios. one chip is 128kb and one is 4mb....

Check this and post results. The 128KB chips is the one I´d program first.

[dj_ricoh]

Re: lenovo v460 no power

last time i try to find out why it did not power up i ended up reflowing and it when back to normal.

[alihomee]

Re: lenovo v460 no power

which chip u reflow

[dj_ricoh]

Re: lenovo v460 no power

which chip u reflow

cuz i run out of ideas i cook the board
it power after

[alihomee]

Re: lenovo v460 no power

hahah funny repair

[alihomee]

Re: lenovo v460 no power

today done it by reflashing both chips

[jtamad44]

Re: lenovo v460 no power

today done it by reflashing both chips

Good job! Can you please share the bios.bin file..

[tomodachi]

Re: lenovo v460 no power

a few days ago I fixed a no power problem reflashing the eprom.

[alihomee]

Re: lenovo v460 no power

Good job! Can you please share the bios.bin file..

try this one

[jtamad44]

Re: lenovo v460 no power

Thanks alihomee!

[ravi_1617]

Re: lenovo v460 no power

Hi !
dead board same model . no power at any coils no 3.3 or 5 volt switch has power .
some power at ec bios pin no 1.
changed tps51123.
u2 SMSC EMC2103 had a HOLE or pop

Thanks

[ravi_1617]

Re: lenovo v460 no power

Thanks alihomee!
display came it was ec bios problem
with your B560 worked in my v460
Thanks