Hello everyone! first I tried search and find nothing, maybe I didnt search well enough? anyways...
I have this AC adapter, it is an HP 19.5V 3.5A central pin plug, when connected it powers on and delivers the voltage correctly and stable, when I Plug it into the laptop and power it ON it immediately drops to 6v-9v up and down, when I unplug it it takes like 3 seconds and go back up to 19.5v stable
So far I desoldered the main Cap as well as te 2 otput ones, tested and measured them, capacitance is ok and the ESR values seems OK, the big 120uf 400v ESR was .15, I replaced it with another one with .26 ESR and same result
I am not sure if those values are good or bad, any suggestions? Thankyou all!
I have this AC adapter, it is an HP 19.5V 3.5A central pin plug, when connected it powers on and delivers the voltage correctly and stable, when I Plug it into the laptop and power it ON it immediately drops to 6v-9v up and down, when I unplug it it takes like 3 seconds and go back up to 19.5v stable
So far I desoldered the main Cap as well as te 2 otput ones, tested and measured them, capacitance is ok and the ESR values seems OK, the big 120uf 400v ESR was .15, I replaced it with another one with .26 ESR and same result
I am not sure if those values are good or bad, any suggestions? Thankyou all!
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