Re: Dead Vestel 17IPS20 power supply repair (OK fuse, no shorts)
Okay. I used 2 pole cable no earth to the Oscope. I measured the cathode of d214 and gives me noting at all. then i measure the cathode of D215 and gives me a nice 13.7V. like in the picture.
That is strange... If the secondary winding feeds the first diode and then in turn the diode feeds the second diode then why i get no voltage from the winding while i get 13.7 from the second diode ?
Please note that the PSU is not connected with the mainboard.
Okay. I used 2 pole cable no earth to the Oscope. I measured the cathode of d214 and gives me noting at all. then i measure the cathode of D215 and gives me a nice 13.7V. like in the picture.
That is strange... If the secondary winding feeds the first diode and then in turn the diode feeds the second diode then why i get no voltage from the winding while i get 13.7 from the second diode ?
Please note that the PSU is not connected with the mainboard.
Comment