Відео

@@akcoord9615 Sure, in future videos

@@akwasiopoku3189 Nice catch. I guessed it first when I saw low ohms on 3.3v rail that EC would have been shorted. But after isolating 3.3v_alw line which is going to 1.8V_PRIM regulator, after, I got high impedence on 3.3v_alw. Still the EC chip is connected to 3.3V_alw. Based on that I guessed the EC chip is ok. The supply pins on the EC chip was reading high Kilo ohms. But to know the full working condition of the EC we need to prepare the board and check it. Because sometimes even supply pins hav high impedence EC chip would have been gone dead, although we will have 3.3v on all supply pins. If we check reset signal in the EC chip there won't be a reset. I guess once 1.8V rail is shorted low impedence from SoC is sent all the way from SoC to 19v rail, which the charger IC would have detected short and cut down 19v from main power rail. Which might have protected EC. Would it be like that?

Super Anna good study for the video 👍❤️

​@@darattaqwa Great question. Mostly SIO handles signals from various components in and out of the chip. The voltage on these signals has very less amount of current like 100-350micro amps. Shorting these pins will not short the chip. Anyhow avoid shorting the supply pins with other signal pins in the SIO, because in some motherboard SIO is supplied with the inductor voltage 3.3v which is basically having above 5amps. Shorting this line with other signal pins will short the chip. Anyhow for saftey purpose use magnifier or microscope for checking. And also use sharp needle probes for your multimeter.

@@philitroniks thank you so much for the detailed explanation, you are a great teacher and I’ve added a lot of your videos in my playlist to watch later, I’ve liked and subscribed, keep up the good work

@@nikeshdhakal4197 DSO 2C10

Ok sir thanks for reply .

شكرا لك مع تمنياتي لك بالنجاح ❤❤❤❤

@@rosetaylor-nl1ol Thanks

@@rosetaylor-nl1ol Welcome and thanks

@@philitroniks I'm looking for mentorship in this field. Are you available?

@@rosetaylor-nl1ol I'll try my best to educate you through the case studies that I attempt from repairs. I will share important matters about diagnosis in future. Stay tuned !

@@akwasiopoku3189 Thanks

@@KOOS-EDTSOF Thanks

@@ravindraadapa2952You can get schematics from free sources like Alisaler, Smanuals, Badcaps, laboneinside. Also there is a paid website called Vinafix where you can get most of the Schematics and bios files.

@@yellouu_theree Thanks for your comment. It is just a normal regulated power supply. YIHUA 3005D.