Hi I need the schematic and board view file for a PC specialist proteus. The component that I am trying to identify is a power rail coil from the video circuit. The motherboard model is NL5E-N18EG. The component has a code on it which is R47846C7Q
PC specialist NL5E-N18EG motherboard
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Re: PC specialist NL5E-N18EG motherboard
@diff. Laptop was dead. That mosfet is good. Had one mosfet in short on 19v rail replaced it. Found thia coil to be in short, after removing it no ore short in the board. Laptop is powering on and charging but with no screen as does not have the coil to power the video cardComment
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I would like to create a table, or more likely a guideline about the voltage rails and their possible resistance rail.
I know that the motherboard design has a very big depend on the rail's resistance, but I would like to know what is the smallest value for a rail that can be acceptable. For example, I heard that some new gaming motherboards can have 0,5 Ohm resistance on the GPU rail, but on an older type, it could be a sign of a shorted GPU rail.
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by joshAUHi all.
This notebook was showing no signs of life.
I removed the FH52M LA-J891P mainboard and found that there was 19V at the DC jack.
However there was zero volts on the two PRB2 and PRB46 resistors immediately after the two polarity protection MOSFETs (PQB11 & PQB12).
If I remove the PQW1 MOSFET, the 19V rail starts working, and I can turn on the unit - at least I get the fans, and the power light comes on, when I simulate the power button being pressed. No display.
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I recently picked up a laptop that was about to be thrown away to try to repair it. I've tested quite a few things, but I don't know where to look anymore. Could you please help me?
Brand: Asus Vivobook
Motherboard reference: x421da, Rev 2
Context:
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Hello everyone,
I'm trying to repair my old Acer Nitro 5 (AN517-54-55T5). I've already bought a new laptop, so this is more of a learning project. For the experience, with no high expectations of success.
Well, my decice specs are the following:
Model: Acer Nitro 5 AN517-54-55T5
CPU: Intel Core i5-11400H
GPU: NVIDIA GeForce GTX 1650
Motherboard: GH51G LA-L181P Rev:1c
The symptom:
When pressing the power button, the power LED lights up for about 5 seconds and then turns off. Initially, the issue was intermittent: sometimes...05-26-2025, 10:49 AM - Loading...
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