Good time of day to all,
I have a laptop - PC Specialist PC50DS - that I am attempting to repair.
(Also manufactured and (was) sold under names of Clevo PC50DS and Schenker XMG 15 Pro)
Laptop is:
Before I proceed, I would like to add some context: I am by no means experienced in laptop board repair. I have one repair under my belt, for which I had access to Boardview schematics (.brd), which helped me greatly by being able to see HOW and WHAT WITH each component interacts and "Follow the circuit".
In this case, I was not able to locate Boardview schematics. I was able to locate service manual (attached) containing schematics for separate circuits on the board.
I am having trouble "digesting" them in a sense that I am having difficulty visually integrating those circuits in the "whole picture of potential events" to understand how / If fault in one of those circuits would affect board not powering on at all. This is solely my inexperience, and I don't see patterns just yet.
My findings so far are:
·On connected charger there is 19V on two MOSFETs on main power rail and gate has 24V. Voltage is reaching CPU and GPU power circuit.
·Voltage is reaching MOSFET next to battery. Source – 19V, Gate and Drain has whatever voltage battery has when it is connected/
·None of the MOSFETs seem to be shorted (Gate to Drain, Gate to Source) throughout the board.
I will continue when I get home.
I did go around the board trying to locate short to ground on, what I believe, is main 19V power circuit. I did not find any.
My questions are:
I have attatched manual in attatchments below.
I do not have thermal camera. I am getting one on Friday, but before that I have to make do with poking.
Alternatively, if anyone knows where I can find Boardview (.brd or any other) schematics for this, or other motherboard, which is analogous is component positioning? Different CPU and GPU should not be a problem, and I could still could follow the circuit.
Alex
EDIT: I am readijg through sticky post guides now.
I have a laptop - PC Specialist PC50DS - that I am attempting to repair.
(Also manufactured and (was) sold under names of Clevo PC50DS and Schenker XMG 15 Pro)
Laptop is:
- Not powering on
- Not taking charge.
Before I proceed, I would like to add some context: I am by no means experienced in laptop board repair. I have one repair under my belt, for which I had access to Boardview schematics (.brd), which helped me greatly by being able to see HOW and WHAT WITH each component interacts and "Follow the circuit".
In this case, I was not able to locate Boardview schematics. I was able to locate service manual (attached) containing schematics for separate circuits on the board.
I am having trouble "digesting" them in a sense that I am having difficulty visually integrating those circuits in the "whole picture of potential events" to understand how / If fault in one of those circuits would affect board not powering on at all. This is solely my inexperience, and I don't see patterns just yet.
My findings so far are:
·On connected charger there is 19V on two MOSFETs on main power rail and gate has 24V. Voltage is reaching CPU and GPU power circuit.
·Voltage is reaching MOSFET next to battery. Source – 19V, Gate and Drain has whatever voltage battery has when it is connected/
·None of the MOSFETs seem to be shorted (Gate to Drain, Gate to Source) throughout the board.
I will continue when I get home.
I did go around the board trying to locate short to ground on, what I believe, is main 19V power circuit. I did not find any.
My questions are:
- What would be your approach when diagnosing problem of No Power & No Charge? Are there any general algorithms and must-do that apply on 50%+ of cases?
- Could you please point out location where on board split to other power rails is happening? (3.3V)
I have attatched manual in attatchments below.
I do not have thermal camera. I am getting one on Friday, but before that I have to make do with poking.
Alternatively, if anyone knows where I can find Boardview (.brd or any other) schematics for this, or other motherboard, which is analogous is component positioning? Different CPU and GPU should not be a problem, and I could still could follow the circuit.
Alex
EDIT: I am readijg through sticky post guides now.
