Re: Dell P2214Hb not turning on, power supply issue?

Did you have any specific ones? They all looked good from what I can tell. The one smd cap by Q801 I desoldered because I thought it was shorted but it wasn't so I resoldered. That didn't change any issues I've been having before or after. I tried to get a better picture too....

Hello, I have a Dell LED monitor P2214Hb that doesn't do anything when the power button is pressed, power button is not lighting up at all. I'm pretty new to this, but I started with testing the power supply first. I know I'm dealing with high voltage and am being careful, I'm using a differential probe for my O-scope measurments. The PS board is E162032 Vol. 3, 4H.26302.A04.

Currently I'm getting steady 5v at pins 3,4,5 at the left side connector output and steady 22v at the right side connector output pins 3,4. Right side pins 1,2,5,6 is switching between 0-60v and left side...

Re: Components to replace along with shorted power MOSFET



Ok, that makes sense. Appreciate the in-depth response....

Re: Components to replace along with shorted power MOSFET



Ok, great. I see from the schematic I'm using the gate and source have a 4.02k ohm resistor on each of the pins to the charging IC. So basically if there weren't resistors between the MOSFETS and the IC then that would need replaced too?...

Hello. I'm currently working on a Lenovo Ideapad 330S-15IKB that has no power, no power light, dead. I found the schematics and I'm seeing proper voltage at the drain of the first DC IN MOSFET and nothing after. After doing some research and finding the power supply troubleshooting guide in this forum. I tested the second DC IN MOSFET and it's shorted from drain to source. My main question is since I'm new to doing this, I thought I heard somewhere that any time a MOSFET goes, you're supposed to replace the controller as well. That may not be right but I want to check if there's anything else...

Re: New Members - please post your introductions here

Hello everyone. My name's Josh, I live in the USA, and I enjoy tinkering and messing around with anything computer/electronic related. Currently, I work on cars for a living, but recently have been thinking more about a side hobby/hustle trying to fix up and sell broken computers/electronics. Stumbled on to this site and so far it's been really helpful. I hope to one day be able to add some knowledge back.