GATEWAY MX 6453 LAPTOP

[Tony V]

This machine will not power up at all. I swapped the battery with a new
battery and it still won't respond at all. Totally dead.

I think it might be related to the power button on the laptop.

I want to take the cover off and investigate--maybe a loose wire near the
power button. I'm just starting to learn how to repair laptops so this is a
good excersise for me.

Is there anywhere I can get a detailed look at the inside of the machine in
a manual? The Gateway site really doesn't show what's under the hood? Any
sites that you can recommend to help me get a manual or online diagram what
the machine looks like before I open it.

Thanks for any assistance!!
Tony V

 

[Paul]

This machine will not power up at all. I swapped the battery with a new
battery and it still won't respond at all. Totally dead.

I think it might be related to the power button on the laptop.

I want to take the cover off and investigate--maybe a loose wire near the
power button. I'm just starting to learn how to repair laptops so this is a
good excersise for me.

Is there anywhere I can get a detailed look at the inside of the machine in
a manual? The Gateway site really doesn't show what's under the hood? Any
sites that you can recommend to help me get a manual or online diagram what
the machine looks like before I open it.

Thanks for any assistance!!
Tony V

User guides for that model are here.
http://support.gateway.com/s/Mobile/Q106/Bladek8f/1013913Rnv.shtml

8511369 - Gateway Notebook Hardware Reference
http://support.gateway.com/s/Mobile/Q106/BladeK8F/1013913Rul.shtml

Keyboard removal is on page 42. The power button is on the right hand
side of the strip, above the keyboard.

http://support.gateway.com/s/Mobile/Q106/Blade/8511369.pdf

A schematic would be needed, to gain any kind of understanding
of how power conversion and management is done in the laptop.
I have not seen any free schematics of that sort, for laptop motherboards.
On disk here, I've only got a couple schematics for desktop boards.
So I have no reference material for how power management is
done in a laptop.

Power comes in from the adapter, at some voltage like 17V 3A or the
like. That DC voltage is used to charge the batteries, and may be
used to run the laptop at the same time. Something has to decide
whether to charge the batteries or not. Or, when the adapter is
not connected, switch over to using the batteries as a source of
power.

The power button, does not go directly to some power circuit. It
is a logic signal to the power supervisor. So in fact, there are
likely to be a number of faults that result in no response to
pressing the power button. Including the obvious ones, like
no juice in the battery as well as the possibility of a
broken input connector preventing the adapter current
from flowing. (Many customers manage to break the connector
on the laptop, where it is soldered to the motherboard.)
But that is not the only kind of fault which would give
no response.

Paul