Hy , this laptop is dead , there is 19V only on the first mosfet
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Asus K550V no powered on
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Re: Asus K550V no powered on
Originally posted by Fabbrone View PostFet 1 near connector on D 19V S 0V G 0V and on the Fet 2 all 0VLast edited by Techtiger; 03-05-2020, 08:57 AM.
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Re: Asus K550V no powered on
Originally posted by Fabbrone View PostI checked with a multimeter, on Fet 1 between D and S ther is high impedance , on the Fet 2 there is 0,7 ohmLast edited by Techtiger; 03-05-2020, 09:29 AM.
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Re: Asus K550V no powered on
Originally posted by Fabbrone View PostOn the Fet pin D-S 2.5Mohm, also between R010 and ground 2.5 Mohm
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Re: Asus K550V no powered on
if I try the first unsoldered fet with the multimeter in diode mode it works by putting the positive on the D and negative on the S is open but if I touch G and S here it is enabled and now between D to S is 0.
Yes I have a power lab but to try I have to unsolder the second fet too?
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Re: Asus K550V no powered on
Originally posted by Fabbrone View Postif I try the first unsoldered fet with the multimeter in diode mode it works by putting the positive on the D and negative on the S is open but if I touch G and S here it is enabled and now between D to S is 0.
Yes I have a power lab but to try I have to unsolder the second fet too?Last edited by Techtiger; 03-06-2020, 07:29 AM.
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Re: Asus K550V no powered on
OK Ok tried to power it and turn on the video immediately goes into the bios correctly. Retrying the first unsoldered fet with the probe R on D and probe N on S multimeter no value if I invert the probes there are 2.2 mega ohms. Probe R on D and N on G no value if I invert 2.3 mega ohms. If I put probe R on S and N on G there are 30 ohms
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Re: Asus K550V no powered on
Originally posted by Fabbrone View PostOK Ok tried to power it and turn on the video immediately goes into the bios correctly. Retrying the first unsoldered fet with the probe R on D and probe N on S multimeter no value if I invert the probes there are 2.2 mega ohms. Probe R on D and N on G no value if I invert 2.3 mega ohms. If I put probe R on S and N on G there are 30 ohms
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