acer aspire 5740 no power issue...

[carter]

[hidden]dear friends,,,,
today i m facing no pwer issue in acer aspire 5740 [wistron jv50- cp]
when attached psu its take 0.009 amps..and no led glow...

then i m checking vin volt its ok
after that checking 3d3v coil and 5v_pwr coil and its 0 volt on both coils...

so i m checking whole smps section ....first of check

DCBATOUT = 19v ok,,,
3D3V_AUX_S5=3.3v ok,,
5V_AUX_S5=5v ok.,,,
51123_VREF=2v ok
then check,,, EN0==5.25v ok
ENC=== 0v and its coming from i/o ic... its S5_ENABLE

now i thing may be its i/o chip problem but before change chip reprogram ec bios may be its corrupt...
so i m flash ec bios and sovled problem S5_ENABLE it come

and thats why all voltages come like
3d3v==3.3v

5v_pwr ==5v

and iits indicator light come with different amps..its 0.024...

20160822_142021.jpg (33 KiB) Viewed 4806 times

now switched on and workin fine....thanks....[/hidden]

[javed]

very nice case ..and your case understanding ...

[carter]

thanks javed sir,,,,

[rahulsan]

Nice....

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[dnyaneshwar1]

very good case sir

[pradipwasewal]

understanding case study sir

[chandra]

nice sir ji

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[asliyucegsm]

thanks

[karmina]

thanks for sharing good job and description

[samanthban]

Thanks