Help fixing laptop

[jg3]

I am trying to learn how to fix old electronics I have as I find it interesting.

I have an hp pavilion 17-e020us laptop (Specs) that won't turn on.  When I plug in the charger the charging light shows but pressing the power button doesn't work and no fans/display or any other lights come on.  So far I have tried replacing the battery, using a different charger, hard resetting, and opening it up to see if everything looks normal.  What should I do now to figure out what the problem is and fix it?

[minibois]

Check if the power button is actually working and check where it is sending the signal to.

This is something you will likely do with a multimeter of some kind.

[The Torrent]

14 minutes ago, jg3 said:

I am trying to learn how to fix old electronics I have as I find it interesting.

I have an hp pavilion 17-e020us laptop (Specs) that won't turn on.  When I plug in the charger the charging light shows but pressing the power button doesn't work and no fans/display or any other lights come on.  So far I have tried replacing the battery, using a different charger, hard resetting, and opening it up to see if everything looks normal.  What should I do now to figure out what the problem is and fix it?

had that exact laptop and same problem, tried to fix it mobo problem think it was prob a broken relay or something - just scrap it its not worth much. 

[jg3]

1 minute ago, Minibois said:

Check if the power button is actually working and check where it is sending the signal to.

This is something you will likely do with a multimeter of some kind.

Is there some sort of way I could turn it on without the power button.  Or maybe take apart the area where the power button is.  I don't exactly have a multimeter, but I guess I could get one if I will need it.  I should also add that the last time the computer was working it just shut off all of the sudden even though it still had battery left.  So I'm thinking it's some sort of component failure.

[jg3]

1 minute ago, The Torrent said:

had that exact laptop and same problem, tried to fix it mobo problem think it was prob a broken relay or something - just scrap it its not worth much. 

Yeah I know I have a rig so I don't really need it anymore but I was trying to learn from fixing it or something.  I guess I'll take your word for it and mess with something else.

[The Torrent]

2 minutes ago, jg3 said:

Is there some sort of way I could turn it on without the power button.  Or maybe take apart the area where the power button is.  I don't exactly have a multimeter, but I guess I could get one if I will need it.  I should also add that the last time the computer was working it just shut off all of the sudden even though it still had battery left.  So I'm thinking it's some sort of component failure.

u wanna follow the tracks for the power button and short the two connections.

 

1 minute ago, jg3 said:

Yeah I know I have a rig so I don't really need it anymore but I was trying to learn from fixing it or something.  I guess I'll take your word for it and mess with something else.

if u wanna get into electronics watch some electronic channels, greatscott, electroboom come to mind. Get a breadboard kit and make some projects. Make sure u know all ur equations.

[jg3]

Just now, The Torrent said:

u wanna follow the tracks for the power button and short the two connections.

 

if u wanna get into electronics watch some electronic channels, greatscott, electroboom come to mind. Get a breadboard kit and make some projects. Make sure u know all ur equations.

ok thanks I think I'm going to buy an arduino or something and mess around with it.

[minibois]

2 minutes ago, jg3 said:

Is there some sort of way I could turn it on without the power button.  Or maybe take apart the area where the power button is.  I don't exactly have a multimeter, but I guess I could get one if I will need it.  I should also add that the last time the computer was working it just shut off all of the sudden even though it still had battery left.  So I'm thinking it's some sort of component failure.

Might be a blown fuse, which can be hard to spot (or easy to spot, just depends on the type).

 

Check out the way a momentary switch (what the power button is) works: https://learn.sparkfun.com/tutorials/switch-basics/all

 

Long story short, it completes a circuit so the PC knows to power on.

If you know what circuit it closes, you can close it yourself using something conductive (of course only if you know what circuits are involved, you don't want to just bridge two random circuits. That's a short circuit).

 

If you want to check component level, you really do need a multimeter. Without one you can only check for obvious fails (e.g. rust or blown components), but not actually if all is working.

[jg3]

2 minutes ago, Minibois said:

Might be a blown fuse, which can be hard to spot (or easy to spot, just depends on the type).

 

Check out the way a momentary switch (what the power button is) works: https://learn.sparkfun.com/tutorials/switch-basics/all

 

Long story short, it completes a circuit so the PC knows to power on.

If you know what circuit it closes, you can close it yourself using something conductive (of course only if you know what circuits are involved, you don't want to just bridge two random circuits. That's a short circuit).

 

If you want to check component level, you really do need a multimeter. Without one you can only check for obvious fails (e.g. rust or blown components), but not actually if all is working.

yeah I think I'm too much of a beginner to attempt fixing this right now.  Maybe I'll come back to it later.  Thanks for all the help though.