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Sony laptop not turning on NO power, NO charge (Motherboard diagnostic and repair)
This Sony laptop seems dead when you push the power button nothing shows. There charge light does not light up. This is an issue with the mother board, I had to replace one of the PNP power mosfets and there was a bad connection on the power management IC. After fixing those issues the laptop works well.
Things to test
- Supply voltage is 19V 3A
- Mosfets on the main power rail.
- no short after the power mosfets behind the current sense resistor.
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Пікірлер: 18
I don’t know why, but I get such a wholesome vibe from this guy
Any questions just ask them below.
Electronic world oh my god it’s a new vibe I can’t
Great vid, thanks 👍 how did you get the keyboard out of it?
Thank you for this video to give an idea what to look out for. I have a Sony VAIO VGN-NW20EF laptop. The power jack had issues so I replaced it last December 2022 and all was well. I haven't used it since until today and it didn't turn on at all. Same symptoms. I found out the CMOS RTC battery was flat so I disconnected it, but the laptop still doesn't get any power. I'm getting voltage at the input and the MOSFETs are fine. I've checked the resistors nearby and they seem okay. At a glance, I can't see any bad ICs so I'm clueless on where to investigate next. Any suggestions please?
@hessajee
9 ай бұрын
Strangely enough and by accident, I was rotating the charging cable and it started to charge, only in some specific position. Still not sure if it's the power jack or the charging cable. I'm hoping to try out another charging cable and get to the bottom of it.
I have a Sony PCG-61411L and won’t turn on the power keeps blinking can anyone help me with this issue why is doing that .
This no light, no turn on, no charge thing happened to my Linux VAIO i use for DV Firewire video. It happened completely out of nowhere. I found out both of the MOSFETs are bad.
after I turned off my VPCSA4c5e last night. It doesn't turn on any more. when I connect it to power grid and push the power botton its HDD starts to turn. no boot and turn on its power leds. but the battry charge well- what can I do ??
why you ain't showing us your voltages from the multimater ... makes whole thing hard to grab ...😎
do you have to literally dissasemble the whole thing or the bottom cover only?
@NewsonsElectronics
Жыл бұрын
the whole thing is best
@melneldell2187
Жыл бұрын
@@NewsonsElectronics oh :/
I don’t know which part of my laptop so I am going to replace the whole battery, does it work?
My laptop is the same same sony same problem not turning on now I can’t do those things you did I throw my laptop and buy a new one I guess? I don’t have those burning equipments and I haven’t practiced 😂
Bro the charging port was destroyed of mine how to repair it
@NewsonsElectronics
2 жыл бұрын
need to replace the charging port , google laptop model / charging port replacement