If you can just guide me to some reading material or YT links that would be awesome. Beginner to intermediate would be perfect but i will take any links you guy's find usefull.

 

You have to be more specific. It depends on what needs fixing.

I begin with a history of the unit.
When was the last time it was working?
What were the conditions and symptoms when it failed.

The next step would be look, feel, smell followed by complete visual inspection.

Thirdly, I would look at symptoms. I would look at functionality. What does the unit do? What does it not do?

I do all of the above before trying to find a bad component.

 

From my practice.
There are the following malfunctions of electronic components.
Transistors (breakdown, interruption, leakage, gain reduction.)
Diodes (breakdown, interruption, leakage).

Capacitors (breakdown, interruption, leakage, capacity reduction, increase-D, ESR).
Resistors (interruption, resistance deviation too large).

Inductance (interruption, short circuit of turns, too large deviation of Rs, decrease in Q).

 

Only few links from 7,810,000 results on request "How to Find Faulty Components on PCB basic methods book":

https://www.lifewire.com/pcb-troubleshooting-techniques-818958
https://www.techwalla.com/articles/how-to-find-a-fault-in-a-circuit-board
http://blog.repairzone.com/test-equ...bad-components-on-printed-circuit-boards-pcb/
https://www.pcbway.com/blog/Engineering_Technical/How_to_Find_Faulty_Components_on_PCB.html
https://www.electricaltechnology.or...ix-the-printed-circuit-board-pcb-defects.html
https://www.electronics-notes.com/articles/test-methods/meters/transistor-circuit-fault-finding.php
https://www.lifescienceglobal.com/pms/index.php/jbas/article/download/2610/1534
http://www.electronicrepairguide.com/bad-components.html
https://www.intertronics.co.uk/wp-content/uploads/2017/05/PCB-Rework-and-Repair-Guide.pdf
EDIT:
BTW, you can download
"How to Diagnose and Fix Everything Electronic", Mellisa_K mentioned,
from https://www.pdfdrive.com/how-to-diagn ose-and-fix-everything-electronic-e167571083.html

 

If you can just guide me to some reading material or YT links that would be awesome. Beginner to intermediate would be perfect but i will take any links you guy's find usefull.

I like this book. And it's received good reviews I believe

 

Honestly, all you need is what @MrChips has said. Then when that turns up nothing start entering suspect component names in google with "datasheet" behind every search term. If you do not understand what the part in datasheet is or how it works, use google again to ask "what is a low side power switch " or "how does a power transistor work". You can learn a lot pretty fast if you really want to.

 

Thank. I believe that this link's and tips that you all sent me will be more then useful.